{"title":"BigBattery Backup Systems \u0026 Kits","description":"\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eBigBattery Backup Systems – Secure Whole-House Power with Confidence\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003ePower outages, rising electricity rates, and grid instability are no longer edge cases — they are part of everyday reality in American homes. BigBattery Backup Systems \u0026amp; Kits are engineered as scalable home battery backup systems, providing dependable, long-term residential energy storage to homeowners seeking real backup power instead of temporary fixes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eReduce energy costs, protect your home, and gain peace of mind — all with one scalable solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnlike single-unit batteries that leave you guessing, these complete home backup systems are built for \u003c\/span\u003e\u003cspan\u003estable 48V operation\u003c\/span\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan\u003elong-lasting lithium storage\u003c\/span\u003e\u003cspan\u003e, and \u003c\/span\u003e\u003cspan\u003eseamless integration\u003c\/span\u003e\u003cspan\u003e with inverters and solar setups.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhole House Battery Systems Built for Real-World Demand\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eEvery product in this collection is designed as a \u003c\/span\u003e\u003cspan\u003ewhole house battery system\u003c\/span\u003e\u003cspan\u003e or a modular backup solution capable of scaling from partial backup to full-home coverage. Whether you are protecting critical circuits or powering your entire residence, the options in this collection provide:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eHigh-capacity \u003c\/span\u003e\u003cspan\u003e48V battery banks\u003c\/span\u003e\u003cspan\u003e for efficient power delivery\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eModular expansion from \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"\/collections\/10-000-watts-hour-batteries\" title=\"10kWh battery\"\u003e10kWh battery\u003c\/a\u003e backup\u003c\/span\u003e\u003cspan\u003e entry systems to 30kWh+ configurations\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eLong-cycle lithium technology engineered for daily use, not emergency-only scenarios\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eCompatibility with hybrid and solar-ready inverter platforms\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis is \u003ca href=\"\/collections\/solar-energy-battery-storage\" title=\"residential battery storage\"\u003eresidential battery storage\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e built for performance, not marketing promises.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eHome Battery Systems That Scale With Your Energy Needs\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eEnergy usage is not static — and your backup system should not be either. BigBattery kits are designed around \u003c\/span\u003e\u003cspan\u003ehousehold battery systems\u003c\/span\u003e\u003cspan\u003e that grow with your home:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eStart with a compact \u003c\/span\u003e\u003cspan\u003ehome battery system\u003c\/span\u003e\u003cspan\u003e for essential loads\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eExpand into a full \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"\/collections\/big-battery-for-home-backup\" title=\"home battery backup\"\u003ehome battery backup\u003c\/a\u003e system\u003c\/span\u003e\u003cspan\u003e as demand increases\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eIntegrate solar charging to reduce grid dependence and long-term energy costs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis modular approach allows homeowners to control upfront investment while preserving long-term flexibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eTypical Backup Capacity Ranges\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBigBattery kits are available in multiple capacity tiers to match different household demands:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSmaller kits (10–15 kWh) — designed to power essential loads such as refrigeration, lighting, and communications; cost-effective and reliable during short outages or when supporting critical circuits only.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eMid-range kits (20–30 kWh) — suitable to provide extended backup coverage and partial whole-home operation; commonly selected to maintain daily comfort and handle outages without oversizing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eLarger kits (30 kWh+) — engineered to deliver whole-home backup, support higher sustained loads, and ensure long-duration power security; typically paired with matching inverter capacity and solar charging to maintain recharge during extended outages.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAll options are built around 48V battery bank architecture, allowing efficient power delivery, inverter compatibility, and future capacity expansion without replacing the core system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eBackup Kits Designed for Reliability, Not Short-Term Power\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThese are not portable power stations or consumer-grade batteries. BigBattery kits are engineered as true backup systems for residential use, featuring:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eStable voltage output, ideal for sensitive appliances\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eHigh-cycle lithium battery banks, built to last years of operation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eThermal and electrical protection, ensuring safe and consistent performance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eArchitecture compatible with both grid-tied and off-grid applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFrom weather-related outages to utility shutoffs and peak-rate optimization, these systems deliver dependable power when it matters most.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhy Homeowners Choose BigBattery\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eControl. That’s the reason Americans choose BigBattery:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eControl over \u003c\/span\u003e\u003cspan\u003eoutages\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eControl over \u003c\/span\u003e\u003cspan\u003erising energy costs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eControl over \u003c\/span\u003e\u003cspan\u003ehow and when power is used\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWith \u003c\/span\u003e\u003cspan\u003escalable capacity\u003c\/span\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan\u003esystem-level engineering\u003c\/span\u003e\u003cspan\u003e, and \u003c\/span\u003e\u003cspan\u003eproven lithium reliability\u003c\/span\u003e\u003cspan\u003e, BigBattery offers \u003c\/span\u003e\u003cspan\u003efuture-ready residential energy independence \u003c\/span\u003e\u003cspan\u003e— without forcing a one-size-fits-all solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eExplore the \u003c\/span\u003e\u003cspan\u003eBigBattery Backup Systems \u0026amp; Kits\u003c\/span\u003e\u003cspan\u003e collection today and design a home energy solution built for \u003c\/span\u003e\u003cspan\u003ereliability, scalability, and long-term value\u003c\/span\u003e\u003cspan\u003e, backed by free U.S. shipping and manufacturer warranty on every kit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","products":[{"product_id":"ethos-48v-10-2kwh-battery-kit-2-modules","title":"ETHOS 48V 10.2KWH Battery Kit (2 Modules) | BigBattery","description":"\u003cdiv class=\"esk-pd esk-pd-b ethos2-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V LiFePO₄ Battery · 2-Module Bank · 12-Year Warranty\u003c\/p\u003e\n\u003ch2\u003e10.24kWh of Modular Battery Storage, Backed by a 12-Year Warranty\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis is two BigBattery ETHOS modules (5.12kWh each) on a single shared control box — 10.24kWh of total storage from a system built to scale from this starter bank up to 80+kWh without changing platforms. It's the longest-warrantied battery in BigBattery's lineup at 12 years, sealed to an IP65\/NEMA 4X rating for indoor or outdoor installation.\u003c\/p\u003e\n\u003cdiv class=\"esk-divider\" aria-hidden=\"true\"\u003e\u003csvg viewbox=\"0 0 600 20\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10.24kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eTotal Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,240W\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax Cont. Power\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12-Year\u003c\/span\u003e\u003cspan class=\"label\"\u003eWarranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e6,000+\u003c\/span\u003e\u003cspan class=\"label\"\u003eCycle Life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003cp\u003e\u003cimg alt=\"BigBattery ETHOS 2-MODULES solar kit — product photo\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/1.webp?v=1784232288\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat Makes ETHOS Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003crect x=\"2\" y=\"8\" width=\"17\" height=\"9\" rx=\"2\"\u003e\u003c\/rect\u003e\u003crect x=\"19\" y=\"11\" width=\"2.5\" height=\"3\" rx=\"1\" fill=\"currentColor\" stroke=\"none\"\u003e\u003c\/rect\u003e\u003crect x=\"5\" y=\"10.3\" width=\"4\" height=\"4.4\" rx=\"0.6\" fill=\"currentColor\" stroke=\"none\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e10.24kWh, Two Modules\u003c\/h4\u003e\n\u003cp\u003eTwo 5.12kWh LiFePO₄ modules on one shared control box, built to scale from this starter bank up to 80+kWh on the same platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" aria-hidden=\"true\"\u003e\u003crect x=\"2.5\" y=\"9\" width=\"9\" height=\"6\" rx=\"3\" transform=\"rotate(-18 7 12)\"\u003e\u003c\/rect\u003e\u003crect x=\"12.5\" y=\"9\" width=\"9\" height=\"6\" rx=\"3\" transform=\"rotate(-18 17 12)\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eModular, Expandable Design\u003c\/h4\u003e\n\u003cp\u003eUp to 16 modules can connect to a single control box, so capacity can grow later without replacing what's already installed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"currentColor\" aria-hidden=\"true\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e200A \/ 10,240W Continuous\u003c\/h4\u003e\n\u003cp\u003eThe control box delivers up to 200A (10,240W) continuously regardless of module count — more modules mean more runtime, not more peak power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 8c-1.5 2-2.5 3.3-2.5 4.5a2.5 2.5 0 0 0 5 0C14.5 11.3 13.5 10 12 8Z\" fill=\"currentColor\" stroke=\"none\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIP65 \/ NEMA 4X Rated\u003c\/h4\u003e\n\u003cp\u003eSealed for both indoor and direct outdoor installation, with two overlapping weatherproofing standards rather than just one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M4 12a8 8 0 0 1 14-5.3M20 12a8 8 0 0 1-14 5.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M18 3v4h-4M6 21v-4h4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e6,000+ Cycle Life\u003c\/h4\u003e\n\u003cp\u003eRated for years of daily charge and discharge cycles before capacity meaningfully declines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003crect x=\"3\" y=\"5\" width=\"18\" height=\"12\" rx=\"1.5\"\u003e\u003c\/rect\u003e\u003cpath d=\"M8 20h8M12 17v3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIntegrated Smart Controller\u003c\/h4\u003e\n\u003cp\u003eThe ETHOS controller manages the bank's performance automatically, coordinating every module behind it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M9 2v4M15 2v4M7 8h10v4a5 5 0 0 1-10 0V8Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 17v4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003ePlug-and-Play Installation\u003c\/h4\u003e\n\u003cp\u003eModules connect together without custom wiring runs between them, simplifying both first install and later expansion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg class=\"esk-accent-2\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e12-Year Warranty\u003c\/h4\u003e\n\u003cp\u003eThe longest manufacturer's warranty across BigBattery's lineup, on top of UL 9540, UL9540A, UL1973, and UN38.3 certification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-divider\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" aria-hidden=\"true\"\u003e\u003csvg viewbox=\"0 0 600 20\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eCapacity and Power Aren't the Same Dial\u003c\/h3\u003e\n\u003cp\u003eETHOS is built differently from a lot of home batteries: instead of each unit being a fully self-contained battery, individual 5.12kWh modules stack onto one shared control box, which is what actually connects to the inverter and handles charge\/discharge current. This starting configuration — two modules — banks 10.24kWh of storage, but the control box still caps continuous output at 200A (10,240W), the same as it would with six modules or sixteen. Adding modules later buys runtime and reserve capacity, not a higher power ceiling.\u003c\/p\u003e\n\u003cp\u003eThat tradeoff is the point for a lot of installs: a bank sized for multi-day autonomy or a large home's overnight draw, without needing the power electronics to scale alongside it. An IP65\/NEMA 4X rating covers both indoor and outdoor placement, and the 12-year warranty is the longest of anything in BigBattery's own catalog — this isn't a value-tier battery, it's the one they stand behind longest.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity \u0026amp; Cells\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThis configuration (×2)\u003c\/td\u003e\n\u003ctd\u003e10.24 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eVoltage \u0026amp; Charging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6–57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48–57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48–50.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42–47 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePower \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous power\u003c\/td\u003e\n\u003ctd\u003e10,240 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax peak discharge current\u003c\/td\u003e\n\u003ctd\u003e300A (5 sec max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temp range\u003c\/td\u003e\n\u003ctd\u003e32–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temp\u003c\/td\u003e\n\u003ctd\u003e59–95°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temp (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4–113°F (6 mo. max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical (Base Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e273 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D×W×H)\u003c\/td\u003e\n\u003ctd\u003e6.7 × 26.5 × 43.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus, RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eConnectivity \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN-12 (base unit)\u003c\/td\u003e\n\u003ctd\u003e850061252005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003ePower figures above are per control box, fixed regardless of module count. Physical dimensions are BigBattery's stated figures for their base unit; a 6-module order's total footprint and shipping weight are worth confirming directly. Certifications: UL9540, UL9540A, UL1973, UN38.3.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ COMPATIBILITY ============ --\u003e\n\u003csection class=\"esk-compat\"\u003e\n\u003ch3\u003eInverter Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis battery needs a compatible inverter to function — which inverters qualify depends on whether the install is grid-tied (requiring UL 9540 certification) or fully off-grid. Note this list is narrower than some other BigBattery batteries for grid-tied installs specifically — EG4 12kPV is not UL 9540-certified with ETHOS the way it is with some other packs.\u003c\/p\u003e\n\u003cdiv class=\"esk-compat-groups\"\u003e\n\u003cdiv class=\"esk-compat-group\"\u003e\n\u003ch4\u003eGrid-Tied Installs\u003c\/h4\u003e\n\u003cp class=\"sub\"\u003eUL 9540 certified + closed-loop comms\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEG4 18kPV\u003c\/li\u003e\n\u003cli\u003eEG4 FlexBOSS18\u003c\/li\u003e\n\u003cli\u003eEG4 FlexBOSS21\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-compat-group\"\u003e\n\u003ch4\u003eOff-Grid Installs\u003c\/h4\u003e\n\u003cp class=\"sub\"\u003eClosed-loop comms, non-UL 9540\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll BigBattery APEX inverters\u003c\/li\u003e\n\u003cli\u003eAll EG4 inverters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003cp\u003e\u003cimg alt=\"BigBattery ETHOS 2-MODULES — product photo\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/6.webp?v=1784232310\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Three official certification documents from Intertek and UL are shown, featuring ETL and UL logos. Text: UL CERTIFIED SAFETY – The BigBattery ETHOS 48V 10.2KWH Battery Kit meets strict safety and compliance standards.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/8_f4f57fec-3e1f-475c-b132-e4cbe304586f.webp?v=1782059742\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does \"2 modules\" mean, and how much storage is that?\u003c\/summary\u003e\n\u003cp\u003eEach ETHOS module holds 5.12kWh. Two modules on one control box total 10.24kWh of usable storage — a solid starting bank, and this platform's smallest standard configuration.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes adding more modules let me draw more power at once?\u003c\/summary\u003e\n\u003cp\u003eNo — that's a common assumption worth correcting. The control box that every module connects to is rated for 200A (10,240W) continuous output regardless of how many modules are behind it, up to 16 per box. More modules mean more stored energy and longer runtime, not a higher instantaneous power ceiling.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan it be installed outdoors?\u003c\/summary\u003e\n\u003cp\u003eYes — it carries both an IP65 and a NEMA 4X rating, covering indoor and direct outdoor installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the difference between the two compatibility lists?\u003c\/summary\u003e\n\u003cp\u003eGrid-tied installations that need UL 9540 energy storage system certification are limited to EG4's 18kPV, FlexBOSS18, and FlexBOSS21 inverters. Fully off-grid installs (not pursuing UL 9540 certification) have a wider range: any BigBattery APEX inverter or EG4 inverter.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long will this battery last?\u003c\/summary\u003e\n\u003cp\u003eIt's rated for 6,000+ charge cycles and backed by a 12-year manufacturer's warranty — the longest warranty across BigBattery's own battery lineup.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I expand this later?\u003c\/summary\u003e\n\u003cp\u003eYes — up to 16 modules can run on a single control box, so this 2-module starting bank has plenty of room to grow toward BigBattery's stated 80+kWh ceiling without switching platforms.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages and currents involved, installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/04\/ETHOS-SpecSheet-1.4-BatteryCB.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/10\/White-Cover-ETHOS-BATTERY-USER-MANUAL-4-jun9.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/UL9540A-Certificate-1.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL9540A Certificate \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/02\/UL1973-ETHOS.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL1973 Certificate \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/48V-ETHOS-DOC-UN38.3.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UN38.3 Certificate \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/11\/SDS_BigBattery_LFP-1.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Safety Data Sheet \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBacked by a \u003cstrong\u003e12-year manufacturer's warranty\u003c\/strong\u003e covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":40640610598967,"sku":"K0948","price":2780.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/ETHOS-2stack-carousel.png?v=1746932266"},{"product_id":"ethos-48v-15-3kwh-battery-kit-3-modules","title":"ETHOS 48V 15.3kWh Battery Backup Kit (3 Modules) | BigBattery","description":"\u003cdiv class=\"esk-pd esk-pd-b ethos3-pd\" style=\"text-align: start;\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V LiFePO₄ Battery · 3-Module Bank · 12-Year Warranty\u003c\/p\u003e\n\u003ch2\u003e15.36kWh of Modular Battery Storage, Backed by a 12-Year Warranty\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis configuration is three BigBattery ETHOS modules (5.12kWh each) stacked on a single shared control box — 15.36kWh of total storage from a system built to scale from a starter bank up to 80+kWh without changing platforms. It's the longest-warrantied battery in BigBattery's lineup at 12 years, sealed to an IP65\/NEMA 4X rating for indoor or outdoor installation.\u003c\/p\u003e\n\u003cdiv aria-hidden=\"true\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e15.36kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eTotal Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,240W\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax Cont. Power\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12-Year\u003c\/span\u003e\u003cspan class=\"label\"\u003eWarranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e6,000+\u003c\/span\u003e\u003cspan class=\"label\"\u003eCycle Life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/1.webp?v=1784232288\" style=\"float: none;\" alt=\"BigBattery ETHOS 3-MODULES solar kit — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat Makes ETHOS Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e15.36kWh, Three Modules\u003c\/h4\u003e\n\u003cp\u003eThree 5.12kWh LiFePO₄ modules on one shared control box, built to scale from a small starter bank up to 80+kWh on the same platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect transform=\"rotate(-18 7 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"2.5\"\u003e\u003c\/rect\u003e\u003crect transform=\"rotate(-18 17 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"12.5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eModular, Expandable Design\u003c\/h4\u003e\n\u003cp\u003eUp to 16 modules can connect to a single control box, so capacity can grow later without replacing what's already installed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e200A \/ 10,240W Continuous\u003c\/h4\u003e\n\u003cp\u003eThe control box delivers up to 200A (10,240W) continuously regardless of module count — more modules mean more runtime, not more peak power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath stroke=\"none\" fill=\"currentColor\" d=\"M12 8c-1.5 2-2.5 3.3-2.5 4.5a2.5 2.5 0 0 0 5 0C14.5 11.3 13.5 10 12 8Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIP65 \/ NEMA 4X Rated\u003c\/h4\u003e\n\u003cp\u003eSealed for both indoor and direct outdoor installation, with two overlapping weatherproofing standards rather than just one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 12a8 8 0 0 1 14-5.3M20 12a8 8 0 0 1-14 5.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M18 3v4h-4M6 21v-4h4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e6,000+ Cycle Life\u003c\/h4\u003e\n\u003cp\u003eRated for years of daily charge and discharge cycles before capacity meaningfully declines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"1.5\" height=\"12\" width=\"18\" y=\"5\" x=\"3\"\u003e\u003c\/rect\u003e\u003cpath d=\"M8 20h8M12 17v3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIntegrated Smart Controller\u003c\/h4\u003e\n\u003cp\u003eThe ETHOS controller manages the bank's performance automatically, coordinating every module behind it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M9 2v4M15 2v4M7 8h10v4a5 5 0 0 1-10 0V8Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 17v4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003ePlug-and-Play Installation\u003c\/h4\u003e\n\u003cp\u003eModules connect together without custom wiring runs between them, simplifying both first install and later expansion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"esk-accent-2\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e12-Year Warranty\u003c\/h4\u003e\n\u003cp\u003eThe longest manufacturer's warranty across BigBattery's lineup, on top of UL 9540, UL9540A, UL1973, and UN38.3 certification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eCapacity and Power Aren't the Same Dial\u003c\/h3\u003e\n\u003cp\u003eETHOS is built differently from a lot of home batteries: instead of each unit being a fully self-contained battery, individual 5.12kWh modules stack onto one shared control box, which is what actually connects to the inverter and handles charge\/discharge current. This configuration — three modules — banks 15.36kWh of storage, but the control box still caps continuous output at 200A (10,240W), the same as it would with two modules or sixteen. Adding modules buys runtime and reserve capacity, not a higher power ceiling.\u003c\/p\u003e\n\u003cp\u003eThat tradeoff is the point for a lot of installs: a bank sized for multi-day autonomy or a large home's overnight draw, without needing the power electronics to scale alongside it. An IP65\/NEMA 4X rating covers both indoor and outdoor placement, and the 12-year warranty is the longest of anything in BigBattery's own catalog — this isn't a value-tier battery, it's the one they stand behind longest.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity \u0026amp; Cells\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThis configuration (×3)\u003c\/td\u003e\n\u003ctd\u003e15.36 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eVoltage \u0026amp; Charging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6–57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48–57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48–50.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42–47 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePower \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous power\u003c\/td\u003e\n\u003ctd\u003e10,240 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax peak discharge current\u003c\/td\u003e\n\u003ctd\u003e300A (5 sec max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temp range\u003c\/td\u003e\n\u003ctd\u003e32–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temp\u003c\/td\u003e\n\u003ctd\u003e59–95°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temp (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4–113°F (6 mo. max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical (Base Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e273 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D×W×H)\u003c\/td\u003e\n\u003ctd\u003e6.7 × 26.5 × 43.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus, RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eConnectivity \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN-12 (base unit)\u003c\/td\u003e\n\u003ctd\u003e850061252005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003ePower figures above are per control box, fixed regardless of module count. Physical dimensions are BigBattery's stated figures for their base unit; a 6-module order's total footprint and shipping weight are worth confirming directly. Certifications: UL9540, UL9540A, UL1973, UN38.3.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ COMPATIBILITY ============ --\u003e\n\u003csection class=\"esk-compat\"\u003e\n\u003ch3\u003eInverter Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis battery needs a compatible inverter to function — which inverters qualify depends on whether the install is grid-tied (requiring UL 9540 certification) or fully off-grid. Note this list is narrower than some other BigBattery batteries for grid-tied installs specifically — EG4 12kPV is not UL 9540-certified with ETHOS the way it is with some other packs.\u003c\/p\u003e\n\u003cdiv class=\"esk-compat-groups\"\u003e\n\u003cdiv class=\"esk-compat-group\"\u003e\n\u003ch4\u003eGrid-Tied Installs\u003c\/h4\u003e\n\u003cp class=\"sub\"\u003eUL 9540 certified + closed-loop comms\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEG4 18kPV\u003c\/li\u003e\n\u003cli\u003eEG4 FlexBOSS18\u003c\/li\u003e\n\u003cli\u003eEG4 FlexBOSS21\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-compat-group\"\u003e\n\u003ch4\u003eOff-Grid Installs\u003c\/h4\u003e\n\u003cp class=\"sub\"\u003eClosed-loop comms, non-UL 9540\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll BigBattery APEX inverters\u003c\/li\u003e\n\u003cli\u003eAll EG4 inverters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/6.webp?v=1784232310\" style=\"float: none;\" alt=\"BigBattery ETHOS 3-MODULES — product photo\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/8_f4f57fec-3e1f-475c-b132-e4cbe304586f.webp?v=1782059742\" alt=\"Three official certification documents from Intertek and UL are shown, featuring ETL and UL logos. Text: UL CERTIFIED SAFETY – The BigBattery ETHOS 48V 10.2KWH Battery Kit meets strict safety and compliance standards.\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does \"3 modules\" mean, and how much storage is that?\u003c\/summary\u003e\n\u003cp\u003eEach ETHOS module holds 5.12kWh. Three modules on one control box total 15.36kWh of usable storage — enough for a full-size home to draw on through an evening or an extended cloudy stretch.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes adding more modules let me draw more power at once?\u003c\/summary\u003e\n\u003cp\u003eNo — that's a common assumption worth correcting. The control box that every module connects to is rated for 200A (10,240W) continuous output regardless of how many modules are behind it, up to 16 per box. More modules mean more stored energy and longer runtime, not a higher instantaneous power ceiling.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan it be installed outdoors?\u003c\/summary\u003e\n\u003cp\u003eYes — it carries both an IP65 and a NEMA 4X rating, covering indoor and direct outdoor installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the difference between the two compatibility lists?\u003c\/summary\u003e\n\u003cp\u003eGrid-tied installations that need UL 9540 energy storage system certification are limited to EG4's 18kPV, FlexBOSS18, and FlexBOSS21 inverters. Fully off-grid installs (not pursuing UL 9540 certification) have a wider range: any BigBattery APEX inverter or EG4 inverter.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long will this battery last?\u003c\/summary\u003e\n\u003cp\u003eIt's rated for 6,000+ charge cycles and backed by a 12-year manufacturer's warranty — the longest warranty across BigBattery's own battery lineup.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I expand this later?\u003c\/summary\u003e\n\u003cp\u003eYes — up to 16 modules can run on a single control box, so a 3-module bank has plenty of room to grow toward BigBattery's stated 80+kWh ceiling without switching platforms.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages and currents involved, installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/04\/ETHOS-SpecSheet-1.4-BatteryCB.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/10\/White-Cover-ETHOS-BATTERY-USER-MANUAL-4-jun9.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/UL9540A-Certificate-1.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL9540A Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/02\/UL1973-ETHOS.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL1973 Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/48V-ETHOS-DOC-UN38.3.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UN38.3 Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/11\/SDS_BigBattery_LFP-1.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Safety Data Sheet \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBacked by a \u003cstrong\u003e12-year manufacturer's warranty\u003c\/strong\u003e covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":40640653230135,"sku":"K0950","price":4030.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/ETHOS-3stack-carousel.png?v=1746932262"},{"product_id":"ethos-48v-20-2kwh-battery-kit-4-modules","title":"ETHOS 48V 20.2kWh Battery Backup Kit (4 Modules)","description":"\u003cdiv class=\"esk-pd esk-pd-b ethos4-pd\" style=\"text-align: start;\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V LiFePO₄ Battery · 4-Module Bank · 12-Year Warranty\u003c\/p\u003e\n\u003ch2\u003e20.48kWh of Modular Battery Storage, Backed by a 12-Year Warranty\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis configuration is four BigBattery ETHOS modules (5.12kWh each) stacked on a single shared control box — 20.48kWh of total storage from a system built to scale from a starter bank up to 80+kWh without changing platforms. It's the longest-warrantied battery in BigBattery's lineup at 12 years, sealed to an IP65\/NEMA 4X rating for indoor or outdoor installation.\u003c\/p\u003e\n\u003cdiv aria-hidden=\"true\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e20.48kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eTotal Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,240W\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax Cont. Power\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12-Year\u003c\/span\u003e\u003cspan class=\"label\"\u003eWarranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e6,000+\u003c\/span\u003e\u003cspan class=\"label\"\u003eCycle Life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/1.webp?v=1784232288\" style=\"float: none;\" alt=\"BigBattery ETHOS 4-MODULES solar kit — product photo\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/6.webp?v=1784232310\" style=\"float: none;\" alt=\"BigBattery ETHOS 4-MODULES — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat Makes ETHOS Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e20.48kWh, Four Modules\u003c\/h4\u003e\n\u003cp\u003eFour 5.12kWh LiFePO₄ modules on one shared control box, built to scale from a small starter bank up to 80+kWh on the same platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect transform=\"rotate(-18 7 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"2.5\"\u003e\u003c\/rect\u003e\u003crect transform=\"rotate(-18 17 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"12.5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eModular, Expandable Design\u003c\/h4\u003e\n\u003cp\u003eUp to 16 modules can connect to a single control box, so capacity can grow later without replacing what's already installed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e200A \/ 10,240W Continuous\u003c\/h4\u003e\n\u003cp\u003eThe control box delivers up to 200A (10,240W) continuously regardless of module count — more modules mean more runtime, not more peak power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath stroke=\"none\" fill=\"currentColor\" d=\"M12 8c-1.5 2-2.5 3.3-2.5 4.5a2.5 2.5 0 0 0 5 0C14.5 11.3 13.5 10 12 8Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIP65 \/ NEMA 4X Rated\u003c\/h4\u003e\n\u003cp\u003eSealed for both indoor and direct outdoor installation, with two overlapping weatherproofing standards rather than just one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 12a8 8 0 0 1 14-5.3M20 12a8 8 0 0 1-14 5.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M18 3v4h-4M6 21v-4h4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e6,000+ Cycle Life\u003c\/h4\u003e\n\u003cp\u003eRated for years of daily charge and discharge cycles before capacity meaningfully declines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"1.5\" height=\"12\" width=\"18\" y=\"5\" x=\"3\"\u003e\u003c\/rect\u003e\u003cpath d=\"M8 20h8M12 17v3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIntegrated Smart Controller\u003c\/h4\u003e\n\u003cp\u003eThe ETHOS controller manages the bank's performance automatically, coordinating every module behind it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M9 2v4M15 2v4M7 8h10v4a5 5 0 0 1-10 0V8Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 17v4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003ePlug-and-Play Installation\u003c\/h4\u003e\n\u003cp\u003eModules connect together without custom wiring runs between them, simplifying both first install and later expansion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"esk-accent-2\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e12-Year Warranty\u003c\/h4\u003e\n\u003cp\u003eThe longest manufacturer's warranty across BigBattery's lineup, on top of UL 9540, UL9540A, UL1973, and UN38.3 certification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eCapacity and Power Aren't the Same Dial\u003c\/h3\u003e\n\u003cp\u003eETHOS is built differently from a lot of home batteries: instead of each unit being a fully self-contained battery, individual 5.12kWh modules stack onto one shared control box, which is what actually connects to the inverter and handles charge\/discharge current. This configuration — four modules — banks 20.48kWh of storage, but the control box still caps continuous output at 200A (10,240W), the same as it would with two modules or sixteen. Adding modules buys runtime and reserve capacity, not a higher power ceiling.\u003c\/p\u003e\n\u003cp\u003eThat tradeoff is the point for a lot of installs: a bank sized for multi-day autonomy or a large home's overnight draw, without needing the power electronics to scale alongside it. An IP65\/NEMA 4X rating covers both indoor and outdoor placement, and the 12-year warranty is the longest of anything in BigBattery's own catalog — this isn't a value-tier battery, it's the one they stand behind longest.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity \u0026amp; Cells\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThis configuration (×4)\u003c\/td\u003e\n\u003ctd\u003e20.48 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eVoltage \u0026amp; Charging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6–57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48–57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48–50.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42–47 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePower \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous power\u003c\/td\u003e\n\u003ctd\u003e10,240 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax peak discharge current\u003c\/td\u003e\n\u003ctd\u003e300A (5 sec max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temp range\u003c\/td\u003e\n\u003ctd\u003e32–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temp\u003c\/td\u003e\n\u003ctd\u003e59–95°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temp (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4–113°F (6 mo. max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical (Base Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e273 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D×W×H)\u003c\/td\u003e\n\u003ctd\u003e6.7 × 26.5 × 43.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus, RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eConnectivity \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN-12 (base unit)\u003c\/td\u003e\n\u003ctd\u003e850061252005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003ePower figures above are per control box, fixed regardless of module count. Physical dimensions are BigBattery's stated figures for their base unit; a 6-module order's total footprint and shipping weight are worth confirming directly. Certifications: UL9540, UL9540A, UL1973, UN38.3.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ COMPATIBILITY ============ --\u003e\n\u003csection class=\"esk-compat\"\u003e\n\u003ch3\u003eInverter Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis battery needs a compatible inverter to function — which inverters qualify depends on whether the install is grid-tied (requiring UL 9540 certification) or fully off-grid. Note this list is narrower than some other BigBattery batteries for grid-tied installs specifically — EG4 12kPV is not UL 9540-certified with ETHOS the way it is with some other packs.\u003c\/p\u003e\n\u003cdiv class=\"esk-compat-groups\"\u003e\n\u003cdiv class=\"esk-compat-group\"\u003e\n\u003ch4\u003eGrid-Tied Installs\u003c\/h4\u003e\n\u003cp class=\"sub\"\u003eUL 9540 certified + closed-loop comms\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEG4 18kPV\u003c\/li\u003e\n\u003cli\u003eEG4 FlexBOSS18\u003c\/li\u003e\n\u003cli\u003eEG4 FlexBOSS21\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-compat-group\"\u003e\n\u003ch4\u003eOff-Grid Installs\u003c\/h4\u003e\n\u003cp class=\"sub\"\u003eClosed-loop comms, non-UL 9540\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll BigBattery APEX inverters\u003c\/li\u003e\n\u003cli\u003eAll EG4 inverters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/8_f4f57fec-3e1f-475c-b132-e4cbe304586f.webp?v=1782059742\" style=\"float: none;\" alt=\"Three official certification documents from Intertek and UL are shown, featuring ETL and UL logos. Text: UL CERTIFIED SAFETY – The BigBattery ETHOS 48V 10.2KWH Battery Kit meets strict safety and compliance standards.\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does \"4 modules\" mean, and how much storage is that?\u003c\/summary\u003e\n\u003cp\u003eEach ETHOS module holds 5.12kWh. Four modules on one control box total 20.48kWh of usable storage — enough for a full-size home to draw on through an evening or an extended cloudy stretch.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes adding more modules let me draw more power at once?\u003c\/summary\u003e\n\u003cp\u003eNo — that's a common assumption worth correcting. The control box that every module connects to is rated for 200A (10,240W) continuous output regardless of how many modules are behind it, up to 16 per box. More modules mean more stored energy and longer runtime, not a higher instantaneous power ceiling.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan it be installed outdoors?\u003c\/summary\u003e\n\u003cp\u003eYes — it carries both an IP65 and a NEMA 4X rating, covering indoor and direct outdoor installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the difference between the two compatibility lists?\u003c\/summary\u003e\n\u003cp\u003eGrid-tied installations that need UL 9540 energy storage system certification are limited to EG4's 18kPV, FlexBOSS18, and FlexBOSS21 inverters. Fully off-grid installs (not pursuing UL 9540 certification) have a wider range: any BigBattery APEX inverter or EG4 inverter.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long will this battery last?\u003c\/summary\u003e\n\u003cp\u003eIt's rated for 6,000+ charge cycles and backed by a 12-year manufacturer's warranty — the longest warranty across BigBattery's own battery lineup.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I expand this later?\u003c\/summary\u003e\n\u003cp\u003eYes — up to 16 modules can run on a single control box, so a 4-module bank has plenty of room to grow toward BigBattery's stated 80+kWh ceiling without switching platforms.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages and currents involved, installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/04\/ETHOS-SpecSheet-1.4-BatteryCB.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/10\/White-Cover-ETHOS-BATTERY-USER-MANUAL-4-jun9.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/UL9540A-Certificate-1.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL9540A Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/02\/UL1973-ETHOS.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL1973 Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/48V-ETHOS-DOC-UN38.3.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UN38.3 Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/11\/SDS_BigBattery_LFP-1.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Safety Data Sheet \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBacked by a \u003cstrong\u003e12-year manufacturer's warranty\u003c\/strong\u003e covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":40640685342775,"sku":"K0951","price":5320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/20.2-kWh-x4-Batteries-KIT0951-1.png?v=1746932261"},{"product_id":"ethos-48v-30-7kwh-battery-kit-6-modules","title":"ETHOS 48V 30.7kWh Battery Backup Kit (6 Modules) | BigBattery","description":"\u003cdiv class=\"esk-pd esk-pd-b ethos6-pd\" style=\"text-align: start;\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V LiFePO₄ Battery · 6-Module Bank · 12-Year Warranty\u003c\/p\u003e\n\u003ch2\u003e30.72kWh of Modular Battery Storage, Backed by a 12-Year Warranty\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis configuration is six BigBattery ETHOS modules (5.12kWh each) stacked on a single shared control box — 30.72kWh of total storage from a system built to scale from a starter bank up to 80+kWh without changing platforms. It's the longest-warrantied battery in BigBattery's lineup at 12 years, sealed to an IP65\/NEMA 4X rating for indoor or outdoor installation.\u003c\/p\u003e\n\u003cdiv class=\"esk-divider\" aria-hidden=\"true\"\u003e\u003csvg viewbox=\"0 0 600 20\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e30.72kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eTotal Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,240W\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax Cont. Power\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12-Year\u003c\/span\u003e\u003cspan class=\"label\"\u003eWarranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e6,000+\u003c\/span\u003e\u003cspan class=\"label\"\u003eCycle Life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/1.webp?v=1784232288\" style=\"float: none;\" alt=\"BigBattery ETHOS 6-MODULES solar kit — product photo\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/6.webp?v=1784232310\" style=\"float: none;\" alt=\"BigBattery ETHOS 6-MODULES — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat Makes ETHOS Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003crect x=\"2\" y=\"8\" width=\"17\" height=\"9\" rx=\"2\"\u003e\u003c\/rect\u003e\u003crect x=\"19\" y=\"11\" width=\"2.5\" height=\"3\" rx=\"1\" fill=\"currentColor\" stroke=\"none\"\u003e\u003c\/rect\u003e\u003crect x=\"5\" y=\"10.3\" width=\"4\" height=\"4.4\" rx=\"0.6\" fill=\"currentColor\" stroke=\"none\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e30.72kWh, Six Modules\u003c\/h4\u003e\n\u003cp\u003eSix 5.12kWh LiFePO₄ modules on one shared control box, built to scale from a small starter bank up to 80+kWh on the same platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" aria-hidden=\"true\"\u003e\u003crect x=\"2.5\" y=\"9\" width=\"9\" height=\"6\" rx=\"3\" transform=\"rotate(-18 7 12)\"\u003e\u003c\/rect\u003e\u003crect x=\"12.5\" y=\"9\" width=\"9\" height=\"6\" rx=\"3\" transform=\"rotate(-18 17 12)\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eModular, Expandable Design\u003c\/h4\u003e\n\u003cp\u003eUp to 16 modules can connect to a single control box, so capacity can grow later without replacing what's already installed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"currentColor\" aria-hidden=\"true\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e200A \/ 10,240W Continuous\u003c\/h4\u003e\n\u003cp\u003eThe control box delivers up to 200A (10,240W) continuously regardless of module count — more modules mean more runtime, not more peak power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 8c-1.5 2-2.5 3.3-2.5 4.5a2.5 2.5 0 0 0 5 0C14.5 11.3 13.5 10 12 8Z\" fill=\"currentColor\" stroke=\"none\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIP65 \/ NEMA 4X Rated\u003c\/h4\u003e\n\u003cp\u003eSealed for both indoor and direct outdoor installation, with two overlapping weatherproofing standards rather than just one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M4 12a8 8 0 0 1 14-5.3M20 12a8 8 0 0 1-14 5.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M18 3v4h-4M6 21v-4h4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e6,000+ Cycle Life\u003c\/h4\u003e\n\u003cp\u003eRated for years of daily charge and discharge cycles before capacity meaningfully declines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003crect x=\"3\" y=\"5\" width=\"18\" height=\"12\" rx=\"1.5\"\u003e\u003c\/rect\u003e\u003cpath d=\"M8 20h8M12 17v3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIntegrated Smart Controller\u003c\/h4\u003e\n\u003cp\u003eThe ETHOS controller manages the bank's performance automatically, coordinating every module behind it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M9 2v4M15 2v4M7 8h10v4a5 5 0 0 1-10 0V8Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 17v4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003ePlug-and-Play Installation\u003c\/h4\u003e\n\u003cp\u003eModules connect together without custom wiring runs between them, simplifying both first install and later expansion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg class=\"esk-accent-2\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e12-Year Warranty\u003c\/h4\u003e\n\u003cp\u003eThe longest manufacturer's warranty across BigBattery's lineup, on top of UL 9540, UL9540A, UL1973, and UN38.3 certification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-divider\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" aria-hidden=\"true\"\u003e\u003csvg viewbox=\"0 0 600 20\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eCapacity and Power Aren't the Same Dial\u003c\/h3\u003e\n\u003cp\u003eETHOS is built differently from a lot of home batteries: instead of each unit being a fully self-contained battery, individual 5.12kWh modules stack onto one shared control box, which is what actually connects to the inverter and handles charge\/discharge current. This configuration — six modules — banks 30.72kWh of storage, but the control box still caps continuous output at 200A (10,240W), the same as it would with two modules or sixteen. Adding modules buys runtime and reserve capacity, not a higher power ceiling.\u003c\/p\u003e\n\u003cp\u003eThat tradeoff is the point for a lot of installs: a bank sized for multi-day autonomy or a large home's overnight draw, without needing the power electronics to scale alongside it. An IP65\/NEMA 4X rating covers both indoor and outdoor placement, and the 12-year warranty is the longest of anything in BigBattery's own catalog — this isn't a value-tier battery, it's the one they stand behind longest.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity \u0026amp; Cells\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThis configuration (×6)\u003c\/td\u003e\n\u003ctd\u003e30.72 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eVoltage \u0026amp; Charging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6–57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48–57 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48–50.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42–47 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePower \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous power\u003c\/td\u003e\n\u003ctd\u003e10,240 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax peak discharge current\u003c\/td\u003e\n\u003ctd\u003e300A (5 sec max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temp range\u003c\/td\u003e\n\u003ctd\u003e32–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temp\u003c\/td\u003e\n\u003ctd\u003e59–95°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temp (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4–113°F (6 mo. max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical (Base Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e273 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D×W×H)\u003c\/td\u003e\n\u003ctd\u003e6.7 × 26.5 × 43.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus, RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eConnectivity \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN-12 (base unit)\u003c\/td\u003e\n\u003ctd\u003e850061252005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003ePower figures above are per control box, fixed regardless of module count. Physical dimensions are BigBattery's stated figures for their base unit; a 6-module order's total footprint and shipping weight are worth confirming directly. Certifications: UL9540, UL9540A, UL1973, UN38.3.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ COMPATIBILITY ============ --\u003e\n\u003csection class=\"esk-compat\"\u003e\n\u003ch3\u003eInverter Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis battery needs a compatible inverter to function — which inverters qualify depends on whether the install is grid-tied (requiring UL 9540 certification) or fully off-grid. Note this list is narrower than some other BigBattery batteries for grid-tied installs specifically — EG4 12kPV is not UL 9540-certified with ETHOS the way it is with some other packs.\u003c\/p\u003e\n\u003cdiv class=\"esk-compat-groups\"\u003e\n\u003cdiv class=\"esk-compat-group\"\u003e\n\u003ch4\u003eGrid-Tied Installs\u003c\/h4\u003e\n\u003cp class=\"sub\"\u003eUL 9540 certified + closed-loop comms\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEG4 18kPV\u003c\/li\u003e\n\u003cli\u003eEG4 FlexBOSS18\u003c\/li\u003e\n\u003cli\u003eEG4 FlexBOSS21\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-compat-group\"\u003e\n\u003ch4\u003eOff-Grid Installs\u003c\/h4\u003e\n\u003cp class=\"sub\"\u003eClosed-loop comms, non-UL 9540\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll BigBattery APEX inverters\u003c\/li\u003e\n\u003cli\u003eAll EG4 inverters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/8_f4f57fec-3e1f-475c-b132-e4cbe304586f.webp?v=1782059742\" style=\"float: none;\" alt=\"Three official certification documents from Intertek and UL are shown, featuring ETL and UL logos. Text: UL CERTIFIED SAFETY – The BigBattery ETHOS 48V 10.2KWH Battery Kit meets strict safety and compliance standards.\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does \"6 modules\" mean, and how much storage is that?\u003c\/summary\u003e\n\u003cp\u003eEach ETHOS module holds 5.12kWh. Six modules on one control box total 30.72kWh of usable storage — enough for a full-size home to draw on through an evening or an extended cloudy stretch.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes adding more modules let me draw more power at once?\u003c\/summary\u003e\n\u003cp\u003eNo — that's a common assumption worth correcting. The control box that every module connects to is rated for 200A (10,240W) continuous output regardless of how many modules are behind it, up to 16 per box. More modules mean more stored energy and longer runtime, not a higher instantaneous power ceiling.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan it be installed outdoors?\u003c\/summary\u003e\n\u003cp\u003eYes — it carries both an IP65 and a NEMA 4X rating, covering indoor and direct outdoor installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the difference between the two compatibility lists?\u003c\/summary\u003e\n\u003cp\u003eGrid-tied installations that need UL 9540 energy storage system certification are limited to EG4's 18kPV, FlexBOSS18, and FlexBOSS21 inverters. Fully off-grid installs (not pursuing UL 9540 certification) have a wider range: any BigBattery APEX inverter or EG4 inverter.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long will this battery last?\u003c\/summary\u003e\n\u003cp\u003eIt's rated for 6,000+ charge cycles and backed by a 12-year manufacturer's warranty — the longest warranty across BigBattery's own battery lineup.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I expand this later?\u003c\/summary\u003e\n\u003cp\u003eYes — up to 16 modules can run on a single control box, so a 6-module bank has plenty of room to grow toward BigBattery's stated 80+kWh ceiling without switching platforms.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages and currents involved, installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/04\/ETHOS-SpecSheet-1.4-BatteryCB.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/10\/White-Cover-ETHOS-BATTERY-USER-MANUAL-4-jun9.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/UL9540A-Certificate-1.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL9540A Certificate \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/02\/UL1973-ETHOS.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL1973 Certificate \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/48V-ETHOS-DOC-UN38.3.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UN38.3 Certificate \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/11\/SDS_BigBattery_LFP-1.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Safety Data Sheet \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBacked by a \u003cstrong\u003e12-year manufacturer's warranty\u003c\/strong\u003e covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":40640697565239,"sku":"K0953","price":7820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/30.7-kWh-x6-Batteries-KIT0953-1.png?v=1746932261"},{"product_id":"off-grid-12kw-power-system-48v-14-3kwh-rhino-2-battery-bigbattery","title":"Off-Grid 12kW Output Power System | 48V 14.3kWh RHINO 2 Battery Backup | BigBattery","description":"\u003cdiv class=\"esk-d2\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eBattery · 12,000W · 14,340Wh\u003c\/p\u003e\n\u003ch2\u003eOff-Grid 12kW Output Power System\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003e\u003cstrong\u003eHigh-capacity off-grid power!\u003c\/strong\u003e The second generation of BigBattery’s flagship 48V RHINO has arrived, and the next-gen RHINO 2 is here to revolutionize power storage for every home in America. This \u003cstrong\u003e14.34kWh\u003c\/strong\u003e configuration is the ideal solution for off-grid power in your tiny home, cabin, or homestead, supported by comprehensive safety, reliability, and state-of-the-art features.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 960 22\" preserveaspectratio=\"none\" aria-hidden=\"true\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"#246AAF\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M820,11 L840,3 M855,11 L875,5 M885,11 L905,2 M920,11 L935,6 M945,11 L960,4\" stroke=\"#36AF24\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eRated Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e14,340Wh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e18,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e48V\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eSystem Voltage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"esk-sec esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe RHINO 2 System is built to be a durable, high-capacity off-grid power solution, with a single unit design and a convenient conduit box on top of the unit for effortless cable management and a sleek finished look, with all hardware included to secure the RHINO 2 to your wall with a simple installation. The RHINO 2 comes equipped with an IP65-rated, all-weather casing, as well as an advanced BMS with auto cell-balancing, and a responsive self-heating function to ensure long-lasting safety and reliability even in the harshest of conditions. Plus, the RHINO 2 features an interactive LED display on the side of the unit, along with full CANBus and RS485 communication protocols, so you can always monitor the status and performance of your power. The RHINO 2 even boasts an internal fire extinguishing unit for ultimate peace of mind when installed inside or outside your home. Supported by these robust safety and visibility features, this power system is engineered to withstand up to \u003cstrong\u003e8,000 cycles\u003c\/strong\u003e at 80% depth of discharge (DoD), achieving lifespans of up to 10+ years!\u003c\/p\u003e\n\u003cp\u003eBut that’s not all. We pair our RHINO 2 with a cutting-edge \u003cstrong\u003e12000W\u003c\/strong\u003e Lux inverter, which features its own LCD touch screen display, 2 MPPT inputs, an integrated UPS module for seamless on and off-grid switching, and the ability to handle PV arrays of up to 18000W. Plus, through its smart load control, AC coupling abilities, and peak shaving function, you can meet your power needs and protect your home against unstable grids or rolling blackouts, while seeing huge savings each month on your electric bill. But if you already have an inverter at home, don’t worry! The RHINO 2 is compatible with dozens of 48V inverters on the market today.\u003c\/p\u003e\n\u003cp\u003eWhether you’re looking to outfit your home with an uninterrupted power system or you’re simply looking to ensure emergency backup power is always available, the RHINO 2 ensures reliable, efficient power delivery day in and day out, allowing you to save on utilities, and most importantly, stay powered and prepared. Take control of your power and shop the all-new 48V RHINO 2 Systems today!\u003c\/p\u003e\n\u003cp\u003eFor those exploring different capacities or configurations, consider checking out the \u003ca href=\"\/products\/off-grid-12kw-power-system-48v-10-2kwh-ethos-battery-bigbattery\" title=\"48V 10.2kWh 12kW ETHOS Off-Grid System\"\u003e48V 10.2kWh 12kW ETHOS Off-Grid System\u003c\/a\u003e or the \u003ca href=\"\/products\/off-grid-24kw-power-system-48v-28-6kwh-rhino-2-battery-bigbattery\" title=\"48V 28.6kWh 24kW RHINO 2 Off-Grid System\"\u003e48V 28.6kWh 24kW RHINO 2 Off-Grid System\u003c\/a\u003e, both designed to deliver reliable, high-capacity off-grid power for a variety of home and cabin setups.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-box alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eWhat's Included in the Kit:\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e48V RHINO 2 with LiFePO4 battery: 280Ah capacity, 14.34kWh\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eLUXPOWER 12KW Split Phase Inverter\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eRHINO 2 Conduit Box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-specs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eRHINO 2 Battery Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-table-wrap\"\u003e\u003ctable class=\"esk-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFRHNO-48143-G2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e51.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ekWh Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14.34kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAh Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e280Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55.6 - 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 – 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSuggested Low Voltage Cutoff\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 – 50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCell Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Continuous Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Continuous Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10240W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Discharge Peak Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300A (Max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Charge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharge Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 113°F (-20°C - 45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDischarge Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 122°F (-20°C - 50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptimal Discharge Temp. Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e59°F - 95°F (15°C - 35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temp. Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 113°F (-20°C - 45°C) (Max 6 months)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e308.6 lb (140 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.1 in (231 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.3 in (566.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e34.6 in (879 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to (3) parallel connections per (1) inverter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eLUXPower 12kW Hybrid Inverter Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-table-wrap\"\u003e\u003ctable class=\"esk-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eINV020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGTIN-12 (U.P.C.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e850061252456\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. PV Array Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PV Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e360V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNo. of Independent MPPT Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePV Input Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 - 600V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPPT Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 - 480V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStart Up Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e140V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. PV Input Current per MPPT\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25A \/ 15A \/ 15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. MPPT Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e99.90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Battery Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 - 60V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Charge\/Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Charge\/Discharge Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120\/240; 120\/208\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. AC Input Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. AC Input Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120\/240; 120\/208\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransfer Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWave Form\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSine Wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e121.2 lbs (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.2 in (285 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20.5 in (520 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e34.2 in (870 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20ºC (-4ºF) - 60ºC (140ºF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20ºC (-4ºF) - 60ºC (140ºF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAltitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,562 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-video\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/8B8X1ypoxuU?si=HKmniXjNWpJ3RCtL\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-docs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch3 class=\"esk-sec-title\"\u003eAdditional Documentation\u003c\/h3\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/RHINO2-SpecSheet-1.1.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Rhino 2 Battery Spec Sheet\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/RHINO-2-BATTERY-USER-MANUAL.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Rhino 2 Battery User Manual\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/10\/LXP-LB-US-12k-specification.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e LUXPOWER 12k Spec Sheet\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/LXP-LB-US-12k-user-manual-10.11.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e LUXPOWER 12k User Manual\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":40640721584183,"sku":"K0712","price":8587.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/48V-14.33-kWh-RHINO-2-KIT0712.png?v=1746932260"},{"product_id":"off-grid-24kw-power-system-48v-28-6kwh-rhino-2-battery-bigbattery","title":"Off-Grid 24kW Output Power System | 48V 28.6kWh RHINO 2 Battery Backup | BigBattery","description":"\u003cdiv class=\"esk-d2\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eBattery · 12,000W · 28,680Wh\u003c\/p\u003e\n\u003ch2\u003eOff-Grid 24kW Output Power System\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003e\u003cstrong\u003eHigh-capacity off-grid power!\u003c\/strong\u003e The second generation of BigBattery’s flagship 48V RHINO has arrived, and the next-gen RHINO 2 is here to revolutionize power storage for every home in America. This \u003cstrong\u003e28.6kWh\u003c\/strong\u003e configuration is the ideal solution for off-grid power in your tiny home, cabin, or homestead, supported by comprehensive safety, reliability, and state-of-the-art features.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 960 22\" preserveaspectratio=\"none\" aria-hidden=\"true\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"#246AAF\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M820,11 L840,3 M855,11 L875,5 M885,11 L905,2 M920,11 L935,6 M945,11 L960,4\" stroke=\"#36AF24\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eRated Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e28,680Wh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e18,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e48V\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eSystem Voltage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"esk-sec esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe RHINO 2 System is built to be a durable, high-capacity off-grid power solution, with a single unit design and a convenient conduit box on top of the unit for effortless cable management and a sleek finished look, with all hardware included to secure the RHINO 2 to your wall with a simple installation. The RHINO 2 comes equipped with an IP65-rated, all-weather casing, as well as an advanced BMS with auto cell-balancing, and a responsive self-heating function to ensure long-lasting safety and reliability even in the harshest of conditions. Plus, the RHINO 2 features an interactive LED display on the side of the unit, along with full CANBus and RS485 communication protocols, so you can always monitor the status and performance of your power. The RHINO 2 even boasts an internal fire extinguishing unit for ultimate peace of mind when installed inside or outside your home. Supported by these robust safety and visibility features, this power system is engineered to withstand up to \u003cstrong\u003e8,000 cycles\u003c\/strong\u003e at 80% depth of discharge (DoD), achieving lifespans of up to 10+ years!\u003c\/p\u003e\n\u003cp\u003eBut that’s not all. We pair our RHINO 2 with a cutting-edge \u003cstrong\u003e12000W\u003c\/strong\u003e Lux inverter, which features its own LCD touch screen display, 2 MPPT inputs, an integrated UPS module for seamless on and off-grid switching, and the ability to handle PV arrays of up to 18000W. Plus, through its smart load control, AC coupling abilities, and peak shaving function, you can meet your power needs and protect your home against unstable grids or rolling blackouts, while seeing huge savings each month on your electric bill. But if you already have an inverter at home, don’t worry! The RHINO 2 is compatible with dozens of 48V inverters on the market today.\u003c\/p\u003e\n\u003cp\u003eWhether you’re looking to outfit your home with an uninterrupted power system or you’re simply looking to ensure emergency backup power is always available, the RHINO 2 ensures reliable, efficient power delivery day in and day out, allowing you to save on utilities, and most importantly, stay powered and prepared. Take control of your power and shop the all-new 48V RHINO 2 Systems today!\u003c\/p\u003e\n\u003cp\u003eEnsure your home stays powered through outages and emergencies—browse our complete \u003ca href=\"\/collections\/big-battery-for-home-backup\" title=\"BigBattery for Home Backup\"\u003eBig Battery for Home Backup\u003c\/a\u003e collection to find the perfect system for your energy needs.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-box alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eWhat's Included in the Kit:\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003e48V RHINO 2 with LiFePO4 battery: 280Ah capacity, 14.34kWh\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eLUXPOWER 12KW Split Phase Inverter\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eRHINO 2 Conduit Box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eRHINO 2 Parallel Cable Kit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-specs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eRHINO 2 Battery Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-table-wrap\"\u003e\u003ctable class=\"esk-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFRHNO-48143-G2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e51.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ekWh Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14.34kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAh Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e280Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55.6 - 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 – 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSuggested Low Voltage Cutoff\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 – 50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCell Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Continuous Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Continuous Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10240W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Discharge Peak Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300A (Max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Charge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharge Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 113°F (-20°C - 45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDischarge Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 122°F (-20°C - 50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptimal Discharge Temp. Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e59°F - 95°F (15°C - 35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temp. Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 113°F (-20°C - 45°C) (Max 6 months)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e308.6 lb (140 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.1 in (231 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.3 in (566.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e34.6 in (879 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to (3) parallel connections per (1) inverter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eLUXPower 12kW Hybrid Inverter Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-table-wrap\"\u003e\u003ctable class=\"esk-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eINV020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGTIN-12 (U.P.C.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e850061252456\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. PV Array Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PV Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e360V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNo. of Independent MPPT Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePV Input Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 - 600V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPPT Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 - 480V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStart Up Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e140V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. PV Input Current per MPPT\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25A \/ 15A \/ 15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. MPPT Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e99.90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Battery Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 - 60V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Charge\/Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Charge\/Discharge Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120\/240; 120\/208\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. AC Input Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. AC Input Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120\/240; 120\/208\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransfer Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWave Form\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSine Wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e121.2 lbs (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.2 in (285 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20.5 in (520 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e34.2 in (870 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20ºC (-4ºF) - 60ºC (140ºF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20ºC (-4ºF) - 60ºC (140ºF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAltitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,562 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-video\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/8B8X1ypoxuU?si=HKmniXjNWpJ3RCtL\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-docs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eAdditional Documentation\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/RHINO2-SpecSheet-1.1.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Rhino 2 Battery Spec Sheet\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/RHINO-2-BATTERY-USER-MANUAL.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Rhino 2 Battery User Manual\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/10\/LXP-LB-US-12k-specification.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e LUXPOWER 12k Spec Sheet\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/LXP-LB-US-12k-user-manual-10.11.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e LUXPOWER 12k User Manual\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":40640722829367,"sku":"K0715","price":17272.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/2x-48V-14.33-kWh-RHINO-2-KIT0715.png?v=1746932259"},{"product_id":"off-grid-24kw-power-system-48v-43kwh-rhino-2-battery-bigbattery","title":"Off-Grid 24kW Output Power System | 48V 43kWh RHINO 2 Battery Backup | BigBattery","description":"\u003cdiv class=\"esk-d2\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eBattery · 12,000W · 42,900Wh\u003c\/p\u003e\n\u003ch2\u003eOff-Grid 24kW Output Power System\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 960 22\" preserveaspectratio=\"none\" aria-hidden=\"true\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"#246AAF\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M820,11 L840,3 M855,11 L875,5 M885,11 L905,2 M920,11 L935,6 M945,11 L960,4\" stroke=\"#36AF24\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eRated Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e42,900Wh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e18,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e48V\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eSystem Voltage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"esk-sec esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eOverview\u003c\/h2\u003e\n\u003cstrong\u003eHigh-capacity off-grid power!\u003c\/strong\u003e\u003cp\u003eThe second generation of BigBattery’s flagship 48V RHINO has arrived, and the next-gen RHINO 2 is here to revolutionize power storage for every home in America. This\u003c\/p\u003e\n\u003cstrong\u003e42.9kWh\u003c\/strong\u003e\u003cp\u003econfiguration is the ideal solution for off-grid power in your tiny home, cabin, or homestead, supported by comprehensive safety, reliability, and state-of-the-art features.\u003c\/p\u003e\n\u003cp\u003eThe RHINO 2 System is built to be a durable, high-capacity off-grid power solution, with a single unit design and a convenient conduit box on top of the unit for effortless cable management and a sleek finished look, with all hardware included to secure the RHINO 2 to your wall with a simple installation. The RHINO 2 comes equipped with an IP65-rated, all-weather casing, as well as an advanced BMS with auto cell-balancing, and a responsive self-heating function to ensure long-lasting safety and reliability even in the harshest of conditions. Plus, the RHINO 2 features an interactive LED display on the side of the unit, along with full CANBus and RS485 communication protocols, so you can always monitor the status and performance of your power. The RHINO 2 even boasts an internal fire extinguishing unit for ultimate peace of mind when installed inside or outside your home. Supported by these robust safety and visibility features, this power system is engineered to withstand up to \u003cstrong\u003e8,000 cycles\u003c\/strong\u003e at 80% depth of discharge (DoD), achieving lifespans of up to 10+ years!\u003c\/p\u003e\n\u003cp\u003eBut that’s not all. We pair our RHINO 2 with a cutting-edge \u003cstrong\u003e12000W\u003c\/strong\u003e Lux inverter, which features its own LCD touch screen display, 2 MPPT inputs, an integrated UPS module for seamless on and off-grid switching, and the ability to handle PV arrays of up to 18000W. Plus, through its smart load control, AC coupling abilities, and peak shaving function, you can meet your power needs and protect your home against unstable grids or rolling blackouts, while seeing huge savings each month on your electric bill. But if you already have an inverter at home, don’t worry! The RHINO 2 is compatible with dozens of 48V inverters on the market today.\u003c\/p\u003e\n\u003cp\u003eWhether you’re looking to outfit your home with an uninterrupted power system or you’re simply looking to ensure emergency backup power is always available, the RHINO 2 ensures reliable, efficient power delivery day in and day out, allowing you to save on utilities, and most importantly, stay powered and prepared. Take control of your power and shop the all-new 48V RHINO 2 Systems today!\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-box alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eWhat's Included in the Kit:\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003e48V RHINO 2 – LiFePO4 – 280Ah – 14.34kWh\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eLUXPOWER 12kW Split Phase Inverter\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eRHINO 2 Conduit Box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eRHINO 2 Parallel Cable Kit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-specs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eRHINO 2 Battery Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-table-wrap\"\u003e\u003ctable class=\"esk-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFRHNO-48143-G2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e51.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ekWh Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14.34kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAh Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e280Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55.6 - 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 – 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSuggested Low Voltage Cutoff\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 – 50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCell Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Continuous Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Continuous Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10240W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Discharge Peak Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300A (Max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Charge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharge Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 113°F (-20°C - 45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDischarge Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 122°F (-20°C - 50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptimal Discharge Temp. Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e59°F - 95°F (15°C - 35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temp. Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 113°F (-20°C - 45°C) (Max 6 months)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e308.6 lb (140 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.1 in (231 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.3 in (566.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e34.6 in (879 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to (3) parallel connections per (1) inverter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eLUXPower 12kW Hybrid Inverter Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-table-wrap\"\u003e\u003ctable class=\"esk-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eINV020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGTIN-12 (U.P.C.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e850061252456\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. PV Array Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PV Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e360V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNo. of Independent MPPT Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePV Input Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 - 600V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPPT Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 - 480V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStart Up Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e140V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. PV Input Current per MPPT\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25A \/ 15A \/ 15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. MPPT Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e99.90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Battery Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 - 60V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Charge\/Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Charge\/Discharge Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120\/240; 120\/208\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. AC Input Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. AC Input Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120\/240; 120\/208\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPS Output Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransfer Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWave Form\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSine Wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e121.2 lbs (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.2 in (285 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20.5 in (520 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e34.2 in (870 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20ºC (-4ºF) - 60ºC (140ºF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20ºC (-4ºF) - 60ºC (140ºF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAltitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,562 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-video\"\u003e\u003ciframe allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\" frameborder=\"0\" loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/8B8X1ypoxuU?si=HKmniXjNWpJ3RCtL\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-docs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eAdditional Documentation\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/RHINO2-SpecSheet-1.1.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Rhino 2 Battery Spec Sheet\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/RHINO-2-BATTERY-USER-MANUAL.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Rhino 2 Battery User Manual\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/10\/LXP-LB-US-12k-specification.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e LUXPOWER 12k Spec Sheet\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/LXP-LB-US-12k-user-manual-10.11.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e LUXPOWER 12k User Manual\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":40640724369463,"sku":"K0723","price":21067.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/3x-48V-42.9-kWh-RHINO-2-KIT0723.png?v=1746932258"},{"product_id":"off-grid-12kw-power-system-48v-10-2kwh-ethos-battery-bigbattery","title":"EG4 12kW Output Power System | 48V 10.2kWh ETHOS Battery Backup | BigBattery","description":"\u003cdiv class=\"esk-d2\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eBattery · 12,000W · 10,240Wh\u003c\/p\u003e\n\u003ch2\u003eEG4 12kW Output Power System\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eExperience the future of off-grid power with BigBattery's groundbreaking \u003cstrong\u003e48V\u003c\/strong\u003e ETHOS systems! Designed for tiny homes, cabins, and homesteads, our \u003cstrong\u003e10.24kWh\u003c\/strong\u003e configuration delivers unparalleled reliability, safety, and cutting-edge features.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 960 22\" preserveaspectratio=\"none\" aria-hidden=\"true\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"#246AAF\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M820,11 L840,3 M855,11 L875,5 M885,11 L905,2 M920,11 L935,6 M945,11 L960,4\" stroke=\"#36AF24\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eRated Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,240Wh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e18,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e48V\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eSystem Voltage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"esk-sec esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe ETHOS System redefines off-grid power, boasting a versatile, stackable, and modular design for effortless expansion. With all mounting hardware included, installation is a breeze. Featuring an IP65-rated casing and internal fire suppression system, along with an advanced BMS offering auto cell-balancing, the ETHOS ensures enduring safety and reliability. Monitor your power system's status and performance effortlessly through the interactive LED display and communication protocols like \u003cstrong\u003eCANBus\u003c\/strong\u003e and \u003cstrong\u003eRS485\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhether you seek reliable emergency backup power or year-round uninterrupted energy, the ETHOS delivers consistent, efficient power day in, day out. Empower yourself with control over your energy. Invest in the \u003cstrong\u003e48V ETHOS\u003c\/strong\u003e today and embrace a future of sustainable power solutions!\u003c\/p\u003e\n\u003cdiv class=\"esk-video\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/dd_Fz3Jgpko?si=gvaLQ7tjxONB_3ta\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-box alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eWhat's included in the kit:\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS Control Box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003e48V ETHOS 5.12kWh Stackable Battery Module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eEG4 12kW Split Phase Inverter. Supports grid-tie, hybrid, and off-grid operation modes.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e10kWh Ethos Controller to Battery Power Cable 31.5\" inch (800mm)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS Rack Base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-specs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eBattery System Specifications (BigBattery ETHOS 10.24 kWh)\u003c\/h2\u003e\n\u003cdiv class=\"esk-table-wrap\"\u003e\u003ctable class=\"esk-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eK0954\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e51.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ekWh Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.24kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAh Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55.6V - 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48V - 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSuggested Low Voltage Cutoff\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48V - 50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCell Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16S 2P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Continuous Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Continuous Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10240W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Discharge Peak Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300A (Max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Charge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharge Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32°F - 113°F (0°C - 45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDischarge Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 140°F (-20°C - 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptimal Discharge Temp Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e59°F - 95°F (15°C - 35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temp Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 113°F (-20°C - 45°C) (Max 6 months)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e273 lb (123.8 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.7 in (170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e26.5 in (674 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e43.3 in (1100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to (16) parallel connections per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540a, UL1973, \u0026amp; UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003e\nEG4 12kW Hybrid Inverter Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-table-wrap\"\u003e\u003ctable class=\"esk-spec-table\"\u003e\n\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage\u003c\/td\u003e\n\u003ctd\u003e120V AC \/ 240V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Frequency\u003c\/td\u003e\n\u003ctd\u003e50 Hz \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Continuous AC Current\u003c\/td\u003e\n\u003ctd\u003e50A @ 240V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. AC Input Power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. AC Bypass\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e180 - 270V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e120V AC \/ 240V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Continuous Output Current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Frequency\u003c\/td\u003e\n\u003ctd\u003e50 Hz \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Capacity (with PV)\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Capacity (without PV)\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Continuous Line Wattage\u003c\/td\u003e\n\u003ctd\u003e6,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (Full Load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReactive Power Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e-0.8 ~ 0.8 Leading Adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Harmonic Distortion\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (Full Load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer Time\u003c\/td\u003e\n\u003ctd\u003e10 - 20 ms (Single) \/ 20 ms (Parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Continuous Output Current (Backup)\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Bypass (Generator)\u003c\/td\u003e\n\u003ctd\u003e90A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage (Backup)\u003c\/td\u003e\n\u003ctd\u003e120V AC \/ 240V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (Backup)\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Continuous Line Wattage (Backup)\u003c\/td\u003e\n\u003ctd\u003e8,000W (per 120V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range (Backup)\u003c\/td\u003e\n\u003ctd\u003e180 - 270V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Frequency (Backup)\u003c\/td\u003e\n\u003ctd\u003e50 Hz \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Output Power (with PV)\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Output Power (without PV)\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Harmonic Distortion (Backup)\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Time (Backup)\u003c\/td\u003e\n\u003ctd\u003e10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-13ºF - 140ºF (-25ºC - 60ºC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e0 - 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Noise Emission\u003c\/td\u003e\n\u003ctd\u003e68 dB @ 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ WiFi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Parallel Connections\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-docs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eAdditional Documentation\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/03\/ETHOS-SpecSheet-1.1-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Spec Sheet\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/ETHOS-BATTERY-USER-MANUAL-V1.4.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS User Manual\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/12\/FETHS-48051-G1-UL9540-Certification-20Dec23-Revision.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540 Certification\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/11\/SDS_BigBattery_LFP-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Safety Data Sheet\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":40640740294711,"sku":"K0954","price":6404.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/10-kWh-x2-Batteries-KIT0954-V2.webp?v=1752177229"},{"product_id":"off-grid-12kw-power-system-48v-15-4kwh-ethos-battery-bigbattery","title":"EG4 12kW Solar Power System with 48V 15.4kWh ETHOS Battery by BigBattery | Whole Home Backup","description":"\u003cdiv class=\"esk-d2\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eBattery · 12,000W · 15,360Wh\u003c\/p\u003e\n\u003ch2\u003eEG4 12kW Solar Power System with 48V 15.4kWh ETHOS Battery by BigBattery\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eExperience the future of off-grid power with BigBattery's groundbreaking \u003cstrong\u003e48V\u003c\/strong\u003e ETHOS systems! Designed for tiny homes, cabins, and homesteads, our \u003cstrong\u003e15.4kWh\u003c\/strong\u003e configuration delivers unparalleled reliability, safety, and cutting-edge features.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 960 22\" preserveaspectratio=\"none\" aria-hidden=\"true\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"#246AAF\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M820,11 L840,3 M855,11 L875,5 M885,11 L905,2 M920,11 L935,6 M945,11 L960,4\" stroke=\"#36AF24\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eRated Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e15,360Wh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e48V\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eSystem Voltage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e8,000\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eCycle Life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"esk-sec esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe ETHOS system redefines off-grid power, boasting a versatile, stackable, and modular design for effortless expansion. With all mounting hardware included, installation is a breeze. Featuring an IP65-rated casing and internal fire suppression system, along with an advanced BMS offering auto cell-balancing, the ETHOS ensures enduring safety and reliability. Monitor your power system's status and performance effortlessly through the interactive LED display and communication protocols like CANBus and RS485.\u003c\/p\u003e\n\u003cp\u003eWhether you seek reliable emergency backup power or year-round uninterrupted energy, the ETHOS delivers consistent, efficient power day in, day out. Empower yourself with control over your energy. Invest in the 48V ETHOS today and embrace a future of sustainable power solutions!\u003c\/p\u003e\n\u003cp\u003eTo explore more solutions for reliable off-grid power and whole-home backup, visit our \u003ca href=\"\/collections\/big-battery-for-home-backup\" title=\"BigBattery for Home Backup\"\u003eBig Battery for Home Backup\u003c\/a\u003e collection and find the system that fits your energy needs.\u003c\/p\u003e\n\u003cdiv class=\"esk-video\"\u003e\u003ciframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/dd_Fz3Jgpko?si=gvaLQ7tjxONB_3ta\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-box alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eWhat's included in the kit:\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS Control Box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003e48V ETHOS 5.12kWh Stackable Battery Module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eEG4 12kW Hybrid Inverter\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e15kWh Ethos Controller to Battery Power Cable 4ft (1220mm)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS Rack Base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"The BigBattery EG4 24kW 30.7kWh Off-Grid Power System offers 48V backup, pure sine wave, 18,000W PV input, up to 21,000W max, 12,000W output, 15,500W surge power, stackable units with AC-coupling and three MPPTs for split phase 120\/240V.\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/sinewave1_a8568714-5b6f-4b3d-978f-85d81d2858fb.webp?v=1752164316\"\u003e\u003c\/figure\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-specs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eSingle Stack Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-table-wrap\"\u003e\u003ctable class=\"esk-spec-table\"\u003e\n\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU:\u003c\/td\u003e\n\u003ctd\u003eK0955\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN-12 (U.P.C.):\u003c\/td\u003e\n\u003ctd\u003e850061252098\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Voltage:\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage:\u003c\/td\u003e\n\u003ctd\u003e51.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry:\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ekWh Capacity:\u003c\/td\u003e\n\u003ctd\u003e15.36kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAh Capacity:\u003c\/td\u003e\n\u003ctd\u003e300Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging Voltage Range:\u003c\/td\u003e\n\u003ctd\u003e55.6 – 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Charge Voltage:\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range:\u003c\/td\u003e\n\u003ctd\u003e48 – 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested Low Voltage Cutoff:\u003c\/td\u003e\n\u003ctd\u003e48 – 50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS Cutoff Range:\u003c\/td\u003e\n\u003ctd\u003e42 – 47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell Configuration:\u003c\/td\u003e\n\u003ctd\u003e16S 3P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Continuous Discharge Current:\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Continuous Power:\u003c\/td\u003e\n\u003ctd\u003e12,800W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Discharge Peak Current:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e300A (Max 5 seconds)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Charge Current:\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge Temperature Range:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e32°F – 113°F (0°C – 45°C)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge Temperature Range:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e-4°F – 140°F (-20°C – 60°C)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal Discharge Temperature Range:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e59°F – 95°F (15°C – 35°C)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature Range (SoC \u0026gt;50%):\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e-4°F – 113°F (-20°C – 45°C) (Max 6 months)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e387 lb (175.5 kg)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e6.7 in (170 mm)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e26.5 in (674 mm)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e59.8 in (1520 mm)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Connections:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eUp to (16) parallel connections per control box\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Rating:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eIP65 \/ NEMA 4X\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eCANBus \/ RS485\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications:\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eUL9540, UL9540A, UL1973, \u0026amp; UN38.3\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-docs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eAdditional documentation\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/03\/ETHOS-SpecSheet-1.1-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Ethos Spec Sheet\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/ETHOS-BATTERY-USER-MANUAL-V1.4.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Ethos User Manual\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/12\/FETHS-48051-G1-UL9540-Certification-20Dec23-Revision.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Ethos UL9540 Certification\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/11\/SDS_BigBattery_LFP-1.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Ethos Safety Data Sheet\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":40640741048375,"sku":"K0955","price":7467.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/15-kWh-x3-Batteries-KIT0955-V2.webp?v=1752164968"},{"product_id":"off-grid-24kw-power-system-48v-30-7kwh-ethos-battery-bigbattery","title":"EG4 24kW Output Power System | 48V 30.7kWh ETHOS Battery Backup | BigBattery","description":"\u003cdiv class=\"esk-pd esk-pd-d eth18kpv2x6-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eETHOS + EG4 18kPV ESS · 2× Inverter \/ 6× Battery (\"Large\")\u003c\/p\u003e\n\u003ch2\u003eBigBattery ETHOS + EG4 18kPV Hybrid Inverter ESS — 61.44kWh \/ 24kW System\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA complete, high-performance energy storage system pairing six scalable ETHOS 48V lithium battery modules with two EG4 18kPV hybrid inverters — delivering 61.44kWh of storage and 24,000W of continuous AC output in one integrated, UL 9540-certified package.\u003c\/p\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e61.44 kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eTotal Storage (6× ETHOS)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e24,000 W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous Output (2× 18kPV)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e36,000 W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Combined PV Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003eUL 9540\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eCertified System\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ OVERVIEW ============ --\u003e\n\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/11-3.webp?v=1789568304\" alt=\"Certainly! Here’s your rewritten sentence using the provided product data: A modern house at dusk with expansive windows and elegant outdoor lighting. In the foreground sits a white BigBattery EG4 24kW Output Power System with 48V 30.7kWh ETHOS Battery Backup, featuring sleek, rounded edges. Text reads: BigBattery — EG4 24kW Output Power System | The heartbeat of home energy. 12-year warranty. UL-certified, sustainable power, all set in clean IBM Plex Sans for a contemporary appeal.\"\u003e\u003c\/span\u003e\u003c\/section\u003e\n\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\n\u003ch3\u003eAll-in-One Home \u0026amp; Grid-Tied Energy Storage\u003c\/h3\u003e\n\u003cp\u003eCombining the scalable \u003cstrong\u003eETHOS 48V lithium battery system\u003c\/strong\u003e with two \u003cstrong\u003eEG4 18kPV hybrid inverters\u003c\/strong\u003e, this system delivers reliable, efficient, and intelligent energy management for both on-grid and off-grid applications. Expandable well beyond this configuration, the ETHOS battery adapts to growing energy needs while the 18kPV inverters seamlessly manage power from solar, battery storage, and the grid.\u003c\/p\u003e\n\u003cp\u003eDesigned with UL 9540-certified configurations, advanced battery management, and U.S.-engineered components, this system ensures safe, maintenance-free performance with seamless closed-loop communication between battery and inverter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShips From:\u003c\/strong\u003e Texas, USA  |  \u003cstrong\u003eWarranty:\u003c\/strong\u003e 12 Years (Battery), 10 Years (Inverter)  |  \u003cstrong\u003eSupport:\u003c\/strong\u003e Lifetime USA-Based Tech Support\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ CONFIG NOTE ============ --\u003e\n\u003cdiv class=\"esk-config-note\"\u003e\n\u003cp\u003eThis configuration pairs 2× EG4 18kPV inverters with 6× ETHOS battery modules (the \"Large\" tier). Totals — 61.44kWh storage, 24,000W continuous AC output, 36,000W max combined PV input — are calculated from BigBattery's confirmed per-unit specs, since the source page doesn't state a single combined figure for this specific tier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ============ COMPATIBILITY ============ --\u003e\n\u003csection class=\"esk-compat\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eCompatibility\u003c\/span\u003e\n\u003ch3\u003eSystem Compatibility\u003c\/h3\u003e\n\u003cdiv class=\"esk-compat-group\"\u003e\n\u003ch4\u003eIntegrated \u0026amp; Optimized System (UL 9540 Certified + Closed-Loop Communication)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eETHOS Battery System + EG4 18kPV Hybrid Inverter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-compat-group\"\u003e\n\u003ch4\u003eExpandable \u0026amp; Flexible\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eScalable ETHOS battery capacity well beyond this configuration\u003c\/li\u003e\n\u003cli\u003eCompatible with additional ETHOS modules for future expansion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ KEY FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/6-8.webp?v=1789568322\" alt=\"A promotional image for the EG4 24kW Output Power System, featuring the 48V 30.7kWh ETHOS Battery Backup from BigBattery, illustrates indoor, outdoor, and commercial battery configurations with UL certification and installer-friendly features in a sleek layout. Various energy capacities—including up to 92kWh—are emphasized, with systems displayed on the left side. The design showcases subtle border radius effects and employs IBM Plex Sans font for a modern appearance, using CSS variables for consistent\"\u003e\u003c\/span\u003e\u003c\/section\u003e\n\u003csection class=\"esk-features\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eKey Features\u003c\/span\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul class=\"esk-feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-in-One ESS Solution\u003c\/strong\u003e – Battery + inverter system designed to work seamlessly together\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18kPV Hybrid Inverter Power\u003c\/strong\u003e – Supports solar, battery, and grid simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 Battery Chemistry\u003c\/strong\u003e – Safe, stable lithium technology with long lifespan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6,000+ Cycle Life\u003c\/strong\u003e – Built for years of daily use and long-term savings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced BMS Protection\u003c\/strong\u003e – Full protection against voltage, current, and temperature risks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosed-Loop Communication\u003c\/strong\u003e – Optimized performance and real-time coordination between battery and inverter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular Expansion\u003c\/strong\u003e – Easily increase storage capacity as energy needs grow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Installation\u003c\/strong\u003e – Streamlined setup with integrated system design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance-Free Operation\u003c\/strong\u003e – No routine servicing required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\n\u003ch3\u003eSpecifications (Per Unit)\u003c\/h3\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eETHOS Battery (Each Module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ekWh capacity\u003c\/td\u003e\n\u003ctd\u003e10.24 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAh capacity\u003c\/td\u003e\n\u003ctd\u003e200 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6–57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48–57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48–50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42–47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S 2P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous power\u003c\/td\u003e\n\u003ctd\u003e10,240W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (5s max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature range\u003c\/td\u003e\n\u003ctd\u003e32°F–113°F (0°C–45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature range\u003c\/td\u003e\n\u003ctd\u003e-4°F–140°F (-20°C–60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e273 lb (123.8 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D×W×H)\u003c\/td\u003e\n\u003ctd\u003e6.7 × 26.5 × 43.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV Inverter (Each Unit)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC voltage\u003c\/td\u003e\n\u003ctd\u003e120V \/ 240V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC frequency\u003c\/td\u003e\n\u003ctd\u003e50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous AC current\u003c\/td\u003e\n\u003ctd\u003e50A @ 240V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge capacity (with PV)\u003c\/td\u003e\n\u003ctd\u003e14,700W (10min) \/ 15,500W (5min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal harmonic distortion\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10–20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of MPPTs\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100–600V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating voltage range\u003c\/td\u003e\n\u003ctd\u003e140–500V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94–99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage range\u003c\/td\u003e\n\u003ctd\u003e40–60V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge\/discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating\/storage temp.\u003c\/td\u003e\n\u003ctd\u003e-13°F–140°F (-25°C–60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ WiFi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lbs (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D×W×H)\u003c\/td\u003e\n\u003ctd\u003e11.2 × 20.5 × 34.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-download-group\"\u003e\n\u003ch4\u003eBattery Downloads (ETHOS)\u003c\/h4\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/04\/ETHOS-SpecSheet-1.4-BatteryCB.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Spec Sheet \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/08\/BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS ESS User Manual \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/UL9540A-Certificate-1.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL9540A Certificate \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/02\/UL1973-ETHOS.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL1973 Certificate \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/48V-ETHOS-DOC-UN38.3.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UN38.3 Certificate \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/11\/SDS_BigBattery_LFP-1.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Safety Data Sheet \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-download-group\"\u003e\n\u003ch4\u003eInverter Downloads (EG4 18kPV)\u003c\/h4\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2024\/04\/EG4-18KPV-12LV-Spec-Sheet.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2024\/04\/EG4-18KPV-12LV-Manual-1.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/EG4-18KPV-12LV-Certification.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL 1741 Certificate \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/18KPV-12LV_1741_CRD_PCS_240425065GZU-002_-Test-Verification-of-Conformity_Security.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL 1741 CRD PCS Test Verification \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf\" rel=\"noopener\" target=\"_blank\"\u003e \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Rapid Shutdown Wiring Guide \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp\u003eETHOS batteries backed by a \u003cstrong\u003e12-year warranty\u003c\/strong\u003e; EG4 18kPV inverters backed by a \u003cstrong\u003e10-year warranty\u003c\/strong\u003e. This system qualifies for the 30% Federal Solar Tax Credit.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":40640745439287,"sku":"K0959","price":14969.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/30-kWh-x6-Batteries-KIT0959-V2.webp?v=1752163223"},{"product_id":"complete-48v-power-system-14-3kwh-lifepo4-lithium-battery-bank-8000w-power-output","title":"Complete 48V Power System - 14.3kWh LiFePO4 Lithium Battery Bank | 8,000W Power Output","description":"\u003cdiv class=\"esk-d2\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003ePower Station · 8,000W · 14,340Wh\u003c\/p\u003e\n\u003ch2\u003eComplete 48V Power System - 14.3kWh LiFePO4 Lithium Battery Bank\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 960 22\" preserveaspectratio=\"none\" aria-hidden=\"true\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"#246AAF\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M820,11 L840,3 M855,11 L875,5 M885,11 L905,2 M920,11 L935,6 M945,11 L960,4\" stroke=\"#36AF24\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e8,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eRated Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e14,340Wh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e48V\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eSystem Voltage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e8,000\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eCycle Life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"esk-sec esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eWhat's in the box\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eSUNGOLD POWER 8000W 48V HYBRID SOLAR INVERTER SPLIT PHASE\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e•\u003c\/span\u003e\u003cspan\u003e1 x: 48V Rhino 2 14.3kWh LiFePO4 Battery (10 Years Warranty)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e48V AC Wall Charger for Lithium Battery\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e300Amps Inline Fuse Kit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e600Amps Bus bar: 4 pcs - BLACK + RED \u0026amp; COVER, 5\/16” lugs\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e4\/0awg, 3ft, lug3\/8”-lug5\/16”, SET\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e1ft, 4\/0AWG, Cables, Lug5\/16” - Lug5\/16”, RED\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e3ft, 1\/0AWG, SB175, Anderson - Lugs 5\/16\", SET\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-overview alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eRHINO 2 BATTERY Overview\u003c\/h2\u003e\n\u003cp\u003eSay hello to the BigBattery 48V RHINO 2 – a game-changer in powering homes across America. This sleek, wall-mounted system packs a punch with \u003cstrong\u003e14.34kWh\u003c\/strong\u003e  of power, all UL-certified for your peace of mind. Designed to brave the elements with its IP65 rating, the RHINO 2 thrives outdoors, even in the harshest conditions, thanks to its all-weather construction and integrated self-heating feature for optimal performance in colder climates.\u003c\/p\u003e\n\u003cp\u003eExperience unrivaled longevity with our LiFePO4 battery chemistry, renowned as the safest on the market. With over \u003cstrong\u003e8000 cycles\u003c\/strong\u003e  at 80% Depth of Discharge (DOD) and a continuous discharge current of 200A, rest assured your energy needs are met with resilience. Safety is paramount, evident in our built-in fire suppression system and advanced Battery Management System (BMS), ensuring cell balancing and backed by a 10-year warranty.\u003c\/p\u003e\n\u003cp\u003eThe RHINO 2 isn’t just powerful; it’s adaptable too. Its modular design allows for seamless scalability, while the included components simplify wall mounting. Compatible with any inverter and existing solar systems, the RHINO 2 integrates effortlessly into your setup. Stay informed with the interactive LCD display, monitoring your power status at a glance.\u003c\/p\u003e\n\u003cp\u003eWhether you seek reliable backup power or aim to maximize your solar investment, the RHINO 2 delivers consistent, efficient energy day in, day out. Take charge of your home’s energy destiny – invest in the 48V RHINO 2 today!\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-specs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eRhino 2 Battery Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-table-wrap\"\u003e\u003ctable class=\"esk-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFRHNO-48143-G2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e51.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ekWh capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14.34kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAh capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e280Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging voltage range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55.6 - 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax charge voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating voltage range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 – 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSuggested low voltage cutoff\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 – 50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCell configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax continuous discharge current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax continuous power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10240W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax discharge peak current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax charge current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharge temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 113°F (-20°C - 45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDischarge temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 122°F (-20°C - 50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptimal discharge temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e59°F - 95°F (15°C - 35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage temperature range (SoC \u0026gt;50%)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F - 113°F (-20°C - 45°C) (max 6 months)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e308.6 lb (140 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.1 in (231 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.3 in (566.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e34.6 in (879 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 3 parallel connections per 1 inverter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-video\"\u003e\u003ciframe allowfullscreen=\"\" frameborder=\"0\" loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/uyB6HaquXvo\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\u003ch3 class=\"esk-sec-title\"\u003eFeatures\u003c\/h3\u003e\n\u003cul class=\"esk-checks\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-in-one unit:\u003c\/strong\u003e This 8kW pure sine wave solar inverter integrates a max 200A battery charging capacity, 2 MPPT solar controllers, and a maximum open circuit voltage of 500VDC. It offers both split phase (120V\/240V) and single phase (120V) output options. Additionally, it comes with a Wi-Fi module for monitoring via mobile app.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable AC output and smart protection:\u003c\/strong\u003e With a rated output power of 8000W and a peak power of 16000W, it supports motors up to 6HP. Protection features include PV input over-voltage\/current protection, AC input over-voltage protection, battery over-voltage protection, and overload protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour charging\/output modes:\u003c\/strong\u003e Includes hybrid charging, utility priority charging, solar priority charging, and only solar charging. Output modes include utility priority, solar and utility hybrid, solar priority, and inverter priority.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime-slot charging\/discharging:\u003c\/strong\u003e Allows users to set custom charging and discharging periods based on peak\/off-peak tariffs, optimizing utility and PV energy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery type:\u003c\/strong\u003e Compatible with 48V AGM\/sealed, gel, flooded, and lithium batteries. Supports battery-free operation and activation of lithium batteries via mains or PV. Includes CAN, USB, and RS485 communication support with SunGoldPower batteries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"8KW Inverter Front View\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/8KW-01_8500594c-d1c5-4839-acc3-b169d1b13411.jpg?v=1702867694\"\u003e\u003c\/figure\u003e\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"8KW Inverter Rear View\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/8KW-02.jpg?v=1702028038\"\u003e\u003c\/figure\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-prose\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eDetails\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eWiFi Monitoring\u003c\/h2\u003e\n\u003cp\u003eConfigured with Wi-Fi components, allowing users to easily access inverter data via mobile phone.\u003c\/p\u003e\n\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"WiFi Module Integration\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/10KW-03_db70d018-9fc3-4491-81b9-634c99c8e0a3.jpg?v=1702028038\"\u003e\u003c\/figure\u003e\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"Mobile Monitoring Interface\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/04_a54882f1-3587-42bb-9c4b-0e3b6588b95b.jpg?v=1702029124\"\u003e\u003c\/figure\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-prose alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eDetails\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eSystem Connection\u003c\/h2\u003e\n\u003cp\u003ePV can charge the battery and supply power to the load via the inverter. If PV or battery power is insufficient, the grid or generator can power the load and charge the battery.\u003c\/p\u003e\n\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"System Connection Diagram\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/05_aca63c3b-9f26-4e56-a4fb-030651ff4d1d.jpg?v=1697008790\"\u003e\u003c\/figure\u003e\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"Multiple Connection Scenarios\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/10KW-06_4ef7a576-8fb1-43ec-b67b-b643fadaa5cf.jpg?v=1702028038\"\u003e\u003c\/figure\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-prose\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eDetails\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eGrid Tied Function\u003c\/h2\u003e\n\u003cp\u003eAn off-grid solar inverter with solar panels that generates electricity, stores it in solar batteries, and runs independently from the power grid.\u003c\/p\u003e\n\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"Grid Tied Function Diagram\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/10KW-08_fceb860c-4797-4404-9798-86b6e54a1239.jpg?v=1702867857\"\u003e\u003c\/figure\u003e\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"Grid Independence Usage\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/10KW-07_4cc4f188-4344-4793-9ce0-ef91ff531d56.jpg?v=1702028037\"\u003e\u003c\/figure\u003e\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"Grid Tied + Battery Storage\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/10KW-09_d1c1e354-5982-44dc-ac8c-aec2ad1e375b.jpg?v=1702029032\"\u003e\u003c\/figure\u003e\u003ch4 class=\"esk-sub\"\u003eSpecifications\u003c\/h4\u003e\n\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"Specifications Chart 1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/2_01.jpg?v=1692841546\"\u003e\u003c\/figure\u003e\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"Specifications Chart 2\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/2_02.jpg?v=1692841546\"\u003e\u003c\/figure\u003e\u003cfigure class=\"esk-fig\"\u003e\u003cimg alt=\"Model Breakdown\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/MODEL-8000W-1-2_697088b9-8685-4544-b472-8734bb7db7d0.jpg?v=1693532255\"\u003e\u003c\/figure\u003e\u003c\/section\u003e\u003csection class=\"esk-sec esk-docs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2 class=\"esk-sec-title\"\u003eAdditional documentation\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/RHINO2-SpecSheet-1.1.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Rhino 2 battery spec sheet\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/01\/RHINO-2-BATTERY-USER-MANUAL.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Rhino 2 battery user manual\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/t\/4\/assets\/pf-25e75320--PDF.jpg?v=1611563410\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e SPH8K48SP split phase solar inverter user manual\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sungold Power","offers":[{"title":"Default Title","offer_id":41099819614263,"sku":"TP6048-FRHNO-48143-G2","price":5899.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/SGP6-RHINO214.jpg?v=1746931979"},{"product_id":"nexus-48v-14-3kwh-battery-apex-6-5k-inverter-off-grid-home-back-up-system","title":"NEXUS 48V 14.3kWh LiFePO4 Battery + APEX-6.5K Inverter | Off-Grid Home Back-Up System","description":"\u003cdiv class=\"esk-pd esk-pd-b nexus65k-pd\" style=\"text-align: start;\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V Off-Grid ESS · NEXUS + APEX-6.5K · Indoor System\u003c\/p\u003e\n\u003ch2\u003e14.3kWh of Off-Grid Power From a Pre-Matched Battery and Inverter Pair\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis system pairs one BigBattery NEXUS 14.3kWh battery with one APEX-6.5K hybrid inverter into a single closed-loop off-grid setup — 14.3kWh of storage and 6,500W of continuous output, with two separate AC inputs so grid and generator can stay connected at the same time. It's an indoor installation for both components, built for cabins, homesteads, and off-grid homes, and it scales up to 214.5kWh on the same platform if you need more later.\u003c\/p\u003e\n\u003cdiv aria-hidden=\"true\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e14.3kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eTotal Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e6,500W\u003c\/span\u003e\u003cspan class=\"label\"\u003eContinuous Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,000W\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax PV Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e214.5kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax Expandable\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ CONFIGURATION ============ --\u003e\n\u003csection class=\"esk-config\"\u003e\n\u003ch3\u003eWhat's In This System\u003c\/h3\u003e\n\u003cp class=\"esk-config-sub\"\u003eTwo components, pre-matched and sold together.\u003c\/p\u003e\n\u003cdiv class=\"esk-config-grid\"\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eBigBattery NEXUS 14.3kWh\u003c\/h4\u003e\n\u003cp\u003eFloor-standing 48V LiFePO₄ battery, expandable up to 15 units in parallel for 214.5kWh total.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eAPEX-6.5K Hybrid Inverter\u003c\/h4\u003e\n\u003cp\u003e6,500W continuous output with two separate AC inputs for simultaneous grid and generator connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Screenshot_2026-07-13_190024.png?v=1783958515\" style=\"float: none;\" alt=\"BigBattery Nexus solar kit — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat Makes This System Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e14.3kWh NEXUS Battery\u003c\/h4\u003e\n\u003cp\u003eLiFePO₄ storage rated for 6,000+ cycles, with a 7.6kW continuous power rating and 270A peak discharge for 1 second.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e6,500W Continuous, 13,000VA Surge\u003c\/h4\u003e\n\u003cp\u003eThe APEX-6.5K delivers 6,500W continuously with headroom to start motors and pumps without tripping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 4 12 13M12 2V13M20 4 12 13M12 13V21\"\u003e\u003c\/path\u003e\u003ccircle stroke=\"none\" fill=\"currentColor\" r=\"2\" cy=\"13\" cx=\"12\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\n\u003ch4\u003eSolar, Grid \u0026amp; Generator Together\u003c\/h4\u003e\n\u003cp\u003eTwo separate AC inputs mean grid and generator can both stay wired in at once, with solar charging independently on top.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003ccircle r=\"4.2\" cy=\"12\" cx=\"12\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 3v2M12 19v2M4.2 12H2.2M21.8 12h-2M5.6 5.6l1.4 1.4M17 17l1.4 1.4M18.4 5.6 17 7M7 17l-1.4 1.4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eDual MPPT, 10kW Solar Input\u003c\/h4\u003e\n\u003cp\u003eTwo independent MPPT trackers pull up to 10,000W combined, adjusting continuously through the day.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect transform=\"rotate(-18 7 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"2.5\"\u003e\u003c\/rect\u003e\u003crect transform=\"rotate(-18 17 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"12.5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eExpandable to 214.5kWh\u003c\/h4\u003e\n\u003cp\u003eUp to 15 NEXUS units can run in parallel on the same platform, for serious long-term capacity growth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M9 2v4M15 2v4M7 8h10v4a5 5 0 0 1-10 0V8Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 17v4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e80A Pass-Through\u003c\/h4\u003e\n\u003cp\u003eRoutes up to 80A straight to critical loads — enough to carry a well pump or HVAC run without staging separate circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 12a8 8 0 0 1 14-5.3M20 12a8 8 0 0 1-14 5.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M18 3v4h-4M6 21v-4h4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e6,000+ Cycle Life\u003c\/h4\u003e\n\u003cp\u003eThe NEXUS battery is rated for years of daily charge and discharge cycles before capacity meaningfully declines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"esk-accent-2\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eAdvanced BMS Protection\u003c\/h4\u003e\n\u003cp\u003eMulti-layer protection on both the battery and inverter for safe, reliable day-to-day operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eA Pre-Matched Pair, Built for Indoor Installation\u003c\/h3\u003e\n\u003cp\u003eRather than picking a battery and inverter separately and hoping they communicate well together, this system ships as one closed-loop pairing: the NEXUS battery and APEX-6.5K inverter are designed and sold to work with each other directly. The APEX-6.5K's two independent AC inputs mean grid and generator can both stay connected simultaneously rather than switching between them, while solar charges through its own dual-MPPT circuit — a genuine differentiator from single-AC-input inverters like BigBattery's own APEX-10K.\u003c\/p\u003e\n\u003cp\u003eWorth knowing before installing: this is an indoor system on both sides. The NEXUS battery is IP54-rated and specified for indoor, floor-standing installation — not the outdoor\/all-weather rating some other BigBattery batteries carry — and the APEX-6.5K is IP20, also indoor-only. Plan for a garage, utility room, or dedicated power space rather than an outdoor enclosure. In exchange, the platform scales seriously: up to 15 NEXUS units can run in parallel for 214.5kWh of total storage, well beyond what a single unit provides.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBattery — BigBattery NEXUS 14.3kWh (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsable energy\u003c\/td\u003e\n\u003ctd\u003e14.3 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAh capacity\u003c\/td\u003e\n\u003ctd\u003e280 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S1P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCharging \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e140 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous power\u003c\/td\u003e\n\u003ctd\u003e7.6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e270A (1 sec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e140 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e53.5–57.6 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temp range\u003c\/td\u003e\n\u003ctd\u003e32–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temp\u003c\/td\u003e\n\u003ctd\u003e59–95°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity range\u003c\/td\u003e\n\u003ctd\u003e10–95%, no condensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP54, indoor floor-standing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~315 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W×H×D)\u003c\/td\u003e\n\u003ctd\u003e19.7 × 27.5 × 15.7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485, RJ45, CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003e15 parallel (214.5kWh)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eInverter — APEX-6.5K (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eOutput\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated output power\u003c\/td\u003e\n\u003ctd\u003e6,500 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax output (surge)\u003c\/td\u003e\n\u003ctd\u003e13,000 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240 Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor load capacity\u003c\/td\u003e\n\u003ctd\u003e4 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching time\u003c\/td\u003e\n\u003ctd\u003e10 ms (typ.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eSolar \u0026amp; Charging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT channels\u003c\/td\u003e\n\u003ctd\u003e2 (1+1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax solar input power\u003c\/td\u003e\n\u003ctd\u003e5,000W + 5,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax solar charge current\u003c\/td\u003e\n\u003ctd\u003e140 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT tracking efficiency\u003c\/td\u003e\n\u003ctd\u003e93%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eAC Input \u0026amp; Bypass\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC inputs\u003c\/td\u003e\n\u003ctd\u003e2, grid + generator (simultaneous)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBypass overload current\u003c\/td\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePass-through capacity\u003c\/td\u003e\n\u003ctd\u003e80 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e25.51 × 16.14 × 5.51 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e48 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP20, indoor only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParallel capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 6 units, 3-phase at 3+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003eCertifications: UL1741, RoHS, FCC Part 15 Class B, IEC62109-1\/2.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SCALABILITY ============ --\u003e\n\u003csection class=\"esk-scale\"\u003e\n\u003ch3\u003eOther Configurations Available\u003c\/h3\u003e\n\u003cp\u003eThis same NEXUS and APEX-6.5K platform is sold in several sizes. The row below highlighted in your brand color is the configuration this page describes — everything else is shown for reference if a customer needs a different scale.\u003c\/p\u003e\n\u003ctable class=\"esk-scale-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTier\u003c\/th\u003e\n\u003cth\u003eInverters\u003c\/th\u003e\n\u003cth\u003eBatteries\u003c\/th\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003cth\u003eMax Output\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"current\"\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e14.3 kWh\u003c\/td\u003e\n\u003ctd\u003e6.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e28.6 kWh\u003c\/td\u003e\n\u003ctd\u003e6.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e42.9 kWh\u003c\/td\u003e\n\u003ctd\u003e6.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eLarge\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e28.6 kWh\u003c\/td\u003e\n\u003ctd\u003e13 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003e3-Phase\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e42.9 kWh\u003c\/td\u003e\n\u003ctd\u003e19.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat exactly is included in this system?\u003c\/summary\u003e\n\u003cp\u003eOne BigBattery NEXUS 14.3kWh battery and one APEX-6.5K hybrid inverter, sold as a pre-matched closed-loop pair — 14.3kWh of storage and 6,500W of continuous output.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan this system be installed outdoors?\u003c\/summary\u003e\n\u003cp\u003eNo — both components are indoor-rated. The NEXUS battery is IP54 and specified as indoor floor-standing, and the APEX-6.5K inverter is IP20. Plan for a garage, utility room, or dedicated indoor power space.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan solar, grid, and a generator all connect at once?\u003c\/summary\u003e\n\u003cp\u003eSolar and one AC source at a time — but the APEX-6.5K's two separate AC inputs mean grid and generator can both stay wired in simultaneously, with solar charging independently on its own circuit. That's different from single-AC-input inverters, which can only use grid or generator, not both together.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this run my entire house?\u003c\/summary\u003e\n\u003cp\u003eIt depends on your total connected load. At 6,500W continuous (13,000VA surge) it covers most efficient homes and cabins, but a full load calculation is worth doing before sizing your system — especially with well pumps, electric heat, or several large appliances running together.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I expand this system later?\u003c\/summary\u003e\n\u003cp\u003eYes — up to 15 NEXUS battery units can run in parallel for 214.5kWh of total capacity, and additional APEX-6.5K inverters can be paralleled up to 6 units (3+ forming a three-phase output) for more power.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the warranty on this system?\u003c\/summary\u003e\n\u003cp\u003eThe NEXUS battery carries a 12-year manufacturer's warranty and the APEX-6.5K inverter carries a 5-year manufacturer's warranty — two separate coverage periods for the two components.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages and currents involved, installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eBattery — BigBattery NEXUS\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/07\/Nexus-SpecSheet-july8.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/07\/NEXUS-User-Manual-1.3.2.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eInverter — APEX-6.5K\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/02\/APEX-SpecSheet0202.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/12\/BigBattery-Apex-6.5-User-Manual-jun9.docx-1.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/06\/Apex6.5KNexus-Quick-Start-Guide.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Quick Start Guide \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBattery backed by a \u003cstrong\u003e12-year manufacturer's warranty\u003c\/strong\u003e; inverter backed by a \u003cstrong\u003e5-year manufacturer's warranty\u003c\/strong\u003e — both covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"1 inverter + 1 battery (6.5 kW + 14.3 kWh)","offer_id":42333856170039,"sku":"K0191","price":4535.0,"currency_code":"USD","in_stock":true},{"title":"1 inverter + 2 batteries (6.5 kW + 28.6 kWh)","offer_id":42333856202807,"sku":"K0192","price":7680.0,"currency_code":"USD","in_stock":true},{"title":"1 inverter + 3 batteries (6.5 kW + 42.9 kWh)","offer_id":42333856235575,"sku":"K0193","price":10725.0,"currency_code":"USD","in_stock":true},{"title":"2 inverters + 2 batteries (13 kW + 28.6 kWh)","offer_id":42333856268343,"sku":"K0195","price":9235.0,"currency_code":"USD","in_stock":true},{"title":"3 inverters + 3 batteries (19.5 kW + 42.9 kWh)","offer_id":42333856301111,"sku":"K0194","price":13835.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Nexus-Apex-6.5K-Default-scaled-2_b94abb55-fd2f-4d88-89c5-d22d763b97c6.webp?v=1785086085"},{"product_id":"nexus-48v-14-3kwh-lifepo4-battery-apex-10k-inverter-off-grid-home-back-up-system","title":"NEXUS 48V 14.3kWh LiFePO4 Battery + APEX-10K Inverter | Off-Grid Home Back-Up System","description":"\u003cdiv class=\"esk-pd esk-pd-b nexus10k-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V Off-Grid ESS · NEXUS + APEX-10K · Indoor System\u003c\/p\u003e\n\u003ch2\u003e14.3kWh of Off-Grid Power From a Pre-Matched Battery and Inverter Pair\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis system pairs one BigBattery NEXUS 14.3kWh battery with one APEX-10K hybrid inverter into a single closed-loop off-grid setup — 14.3kWh of storage and 10,000W of continuous output, with 80A pass-through for demanding loads. It's an indoor installation for both components, built for larger homes, homesteads, and off-grid properties, and it scales up to 214.5kWh on the same platform if you need more later.\u003c\/p\u003e\n\u003cdiv aria-hidden=\"true\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e14.3kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eTotal Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,000W\u003c\/span\u003e\u003cspan class=\"label\"\u003eContinuous Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,500W\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax PV Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e214.5kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax Expandable\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ CONFIGURATION ============ --\u003e\n\u003csection class=\"esk-config\"\u003e\n\u003ch3\u003eWhat's In This System\u003c\/h3\u003e\n\u003cp class=\"esk-config-sub\"\u003eTwo components, pre-matched and sold together.\u003c\/p\u003e\n\u003cdiv class=\"esk-config-grid\"\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eBigBattery NEXUS 14.3kWh\u003c\/h4\u003e\n\u003cp\u003eFloor-standing 48V LiFePO₄ battery, expandable up to 15 units in parallel for 214.5kWh total.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eAPEX-10K Hybrid Inverter\u003c\/h4\u003e\n\u003cp\u003e10,000W continuous output with 80A pass-through for large appliances and critical circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Screenshot_2026-07-13_190024.png?v=1783958515\" alt=\"BigBattery Nexus solar kit — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat Makes This System Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e14.3kWh NEXUS Battery\u003c\/h4\u003e\n\u003cp\u003eLiFePO₄ storage rated for 6,000+ cycles, with a 7.6kW continuous power rating and 270A peak discharge for 1 second.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e10,000W Continuous, 20,000VA Surge\u003c\/h4\u003e\n\u003cp\u003eThe APEX-10K delivers 10,000W continuously with headroom to start motors and pumps without tripping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 7h13M13 3l4 4-4 4M20 17H7M11 21l-4-4 4-4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eSolar, Grid, or Generator\u003c\/h4\u003e\n\u003cp\u003eDraws from solar first and falls back to a single grid or generator input the moment the battery needs it (one AC source at a time).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003ccircle r=\"4.2\" cy=\"12\" cx=\"12\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 3v2M12 19v2M4.2 12H2.2M21.8 12h-2M5.6 5.6l1.4 1.4M17 17l1.4 1.4M18.4 5.6 17 7M7 17l-1.4 1.4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eDual MPPT, 10.5kW Solar Input\u003c\/h4\u003e\n\u003cp\u003eTwo independent MPPT trackers pull up to 10,500W combined, adjusting continuously through the day.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect transform=\"rotate(-18 7 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"2.5\"\u003e\u003c\/rect\u003e\u003crect transform=\"rotate(-18 17 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"12.5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eExpandable to 214.5kWh\u003c\/h4\u003e\n\u003cp\u003eUp to 15 NEXUS units can run in parallel on the same platform, for serious long-term capacity growth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M9 2v4M15 2v4M7 8h10v4a5 5 0 0 1-10 0V8Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 17v4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e80A Pass-Through\u003c\/h4\u003e\n\u003cp\u003eRoutes up to 80A straight to critical loads — enough to carry a well pump or HVAC run without staging separate circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 12a8 8 0 0 1 14-5.3M20 12a8 8 0 0 1-14 5.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M18 3v4h-4M6 21v-4h4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e6,000+ Cycle Life\u003c\/h4\u003e\n\u003cp\u003eThe NEXUS battery is rated for years of daily charge and discharge cycles before capacity meaningfully declines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"esk-accent-2\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eAdvanced BMS Protection\u003c\/h4\u003e\n\u003cp\u003eMulti-layer protection on both the battery and inverter for safe, reliable day-to-day operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eA Pre-Matched Pair, Built for Indoor Installation\u003c\/h3\u003e\n\u003cp\u003eRather than picking a battery and inverter separately and hoping they communicate well together, this system ships as one closed-loop pairing: the NEXUS battery and APEX-10K inverter are designed and sold to work with each other directly. The APEX-10K trades some of the smaller APEX-6.5K's flexibility for raw output — 10,000W continuous versus 6,500W — but its single AC input serves either grid or generator, not both at once, so plan around one backup source being connected at a time rather than both simultaneously.\u003c\/p\u003e\n\u003cp\u003eWorth knowing before installing: this is an indoor system on both sides. The NEXUS battery is IP54-rated and specified for indoor, floor-standing installation — not the outdoor\/all-weather rating some other BigBattery batteries carry — and the APEX-10K is IP20, also indoor-only. Plan for a garage, utility room, or dedicated power space rather than an outdoor enclosure. In exchange, the platform scales seriously: up to 15 NEXUS units can run in parallel for 214.5kWh of total storage, well beyond what a single unit provides.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBattery — BigBattery NEXUS 14.3kWh (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsable energy\u003c\/td\u003e\n\u003ctd\u003e14.3 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAh capacity\u003c\/td\u003e\n\u003ctd\u003e280 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S1P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCharging \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e140 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous power\u003c\/td\u003e\n\u003ctd\u003e7.6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e270A (1 sec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e140 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e53.5–57.6 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temp range\u003c\/td\u003e\n\u003ctd\u003e32–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temp\u003c\/td\u003e\n\u003ctd\u003e59–95°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity range\u003c\/td\u003e\n\u003ctd\u003e10–95%, no condensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP54, indoor floor-standing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~315 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W×H×D)\u003c\/td\u003e\n\u003ctd\u003e19.7 × 27.5 × 15.7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485, RJ45, CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003e15 parallel (214.5kWh)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eInverter — APEX-10K (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eOutput\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated output power\u003c\/td\u003e\n\u003ctd\u003e10,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax output (surge)\u003c\/td\u003e\n\u003ctd\u003e20,000 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240 Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor load capacity\u003c\/td\u003e\n\u003ctd\u003e6 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching time\u003c\/td\u003e\n\u003ctd\u003e10 ms (typ.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eSolar \u0026amp; Charging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT channels\u003c\/td\u003e\n\u003ctd\u003e2 (1+1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax solar input power\u003c\/td\u003e\n\u003ctd\u003e5,000W + 5,500W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax solar charge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT tracking efficiency\u003c\/td\u003e\n\u003ctd\u003e92%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eAC Input \u0026amp; Bypass\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC input\u003c\/td\u003e\n\u003ctd\u003e1, grid or generator*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBypass overload current\u003c\/td\u003e\n\u003ctd\u003e63 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePass-through capacity\u003c\/td\u003e\n\u003ctd\u003e80 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e28.46 × 17.64 × 5.91 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e62 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP20, indoor only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParallel capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 6 units, 3-phase at 3+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003e*Single AC input serves either grid or generator, not simultaneously. Certifications: UL1741, RoHS, FCC Part 15 Class B, IEC62109-1\/2.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SCALABILITY ============ --\u003e\n\u003csection class=\"esk-scale\"\u003e\n\u003ch3\u003eOther Configurations Available\u003c\/h3\u003e\n\u003cp\u003eThis same NEXUS and APEX-10K platform is sold in several sizes. The row below highlighted in your brand color is the configuration this page describes — everything else is shown for reference if a customer needs a different scale.\u003c\/p\u003e\n\u003ctable class=\"esk-scale-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTier\u003c\/th\u003e\n\u003cth\u003eInverters\u003c\/th\u003e\n\u003cth\u003eBatteries\u003c\/th\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003cth\u003eMax Output\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"current\"\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e14.3 kWh\u003c\/td\u003e\n\u003ctd\u003e10 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e28.6 kWh\u003c\/td\u003e\n\u003ctd\u003e10 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e42.9 kWh\u003c\/td\u003e\n\u003ctd\u003e10 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eLarge\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e28.6 kWh\u003c\/td\u003e\n\u003ctd\u003e20 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eLarge\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e4×\u003c\/td\u003e\n\u003ctd\u003e57.2 kWh\u003c\/td\u003e\n\u003ctd\u003e20 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eLarge\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e6×\u003c\/td\u003e\n\u003ctd\u003e85.8 kWh\u003c\/td\u003e\n\u003ctd\u003e20 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003e3-Phase\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e6×\u003c\/td\u003e\n\u003ctd\u003e85.8 kWh\u003c\/td\u003e\n\u003ctd\u003e30 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Nexus-Key-Features-3-scaled-1-2048x841.webp?v=1785056644\" alt=\"BigBattery Nexus solar kit — installation diagram\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/videoframe_6275.png?v=1785056659\" alt=\"BigBattery Nexus solar kit — detail photo\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat exactly is included in this system?\u003c\/summary\u003e\n\u003cp\u003eOne BigBattery NEXUS 14.3kWh battery and one APEX-10K hybrid inverter, sold as a pre-matched closed-loop pair — 14.3kWh of storage and 10,000W of continuous output.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan this system be installed outdoors?\u003c\/summary\u003e\n\u003cp\u003eNo — both components are indoor-rated. The NEXUS battery is IP54 and specified as indoor floor-standing, and the APEX-10K inverter is IP20. Plan for a garage, utility room, or dedicated indoor power space.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan solar, grid, and a generator all connect at once?\u003c\/summary\u003e\n\u003cp\u003eSolar charges independently, but the APEX-10K has a single AC input shared between grid and generator, so it draws from one or the other, not both together. (The smaller APEX-6.5K has two separate AC inputs instead, allowing grid and generator to stay connected simultaneously.)\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this run my entire house?\u003c\/summary\u003e\n\u003cp\u003eIt depends on your total connected load. At 10,000W continuous (20,000VA surge) it comfortably covers most homes, including larger ones, but a full load calculation is worth doing before sizing your system — especially with well pumps, electric heat, or several large appliances running together.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I expand this system later?\u003c\/summary\u003e\n\u003cp\u003eYes — up to 15 NEXUS battery units can run in parallel for 214.5kWh of total capacity, and additional APEX-10K inverters can be paralleled up to 6 units (3+ forming a three-phase output) for more power.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the warranty on this system?\u003c\/summary\u003e\n\u003cp\u003eThe NEXUS battery carries a 12-year manufacturer's warranty and the APEX-10K inverter carries a 5-year manufacturer's warranty — two separate coverage periods for the two components.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages and currents involved, installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eBattery — BigBattery NEXUS\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/07\/Nexus-SpecSheet-july8.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/07\/NEXUS-User-Manual-1.3.2.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eInverter — APEX-10K\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/02\/APEX-SpecSheet0202.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/12\/BigBattery-Apex-10k-User-Manual.docx-2.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/06\/Apex10KNexus-Quick-Start-Guide.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Quick Start Guide \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBattery backed by a \u003cstrong\u003e12-year manufacturer's warranty\u003c\/strong\u003e; inverter backed by a \u003cstrong\u003e5-year manufacturer's warranty\u003c\/strong\u003e — both covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"1 inverter + 1 battery (10 kW + 14.3 kWh)","offer_id":42333857611831,"sku":"K0196","price":4725.0,"currency_code":"USD","in_stock":true},{"title":"1 inverter + 2 batteries (10 kW + 28.6 kWh)","offer_id":42333857644599,"sku":"K0197","price":7870.0,"currency_code":"USD","in_stock":true},{"title":"1 inverter + 3 batteries (10 kW + 42.9 kWh)","offer_id":42333857677367,"sku":"K0198","price":10915.0,"currency_code":"USD","in_stock":true},{"title":"2 inverters + 2 batteries (20 kW + 28.6 kWh)","offer_id":42333857710135,"sku":"K0199","price":9615.0,"currency_code":"USD","in_stock":true},{"title":"2 inverters + 4 batteries (20 kW + 57.2 kWh)","offer_id":42333857742903,"sku":"K0200","price":15705.0,"currency_code":"USD","in_stock":true},{"title":"2 inverters + 6 batteries (20 kW + 85.8 kWh)","offer_id":42333857775671,"sku":"K0201","price":21895.0,"currency_code":"USD","in_stock":true},{"title":"3 inverters + 6 batteries (30 kW + 85.8 kWh)","offer_id":42333857808439,"sku":"K0202","price":23740.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Nexus-Apex-10K-scaled-2_b03bbcc4-0dbe-4124-a5c2-7d7314f397a6.webp?v=1785086915"},{"product_id":"nexus-48v-14-3kwh-lifepo4-battery-eg4-6-000xp-inverter-off-grid-home-back-up-system","title":"NEXUS 48V 14.3kWH LiFePO4 Battery + EG4 6,000XP Inverter | Off-Grid Home Back-up System","description":"\u003cdiv class=\"esk-pd esk-pd-b nexus6kw-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V Off-Grid ESS · NEXUS + EG4 6000XP · Indoor System\u003c\/p\u003e\n\u003ch2\u003e14.3kWh of Off-Grid Power From a Pre-Matched Battery and Inverter Pair\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis system pairs one BigBattery NEXUS 14.3kWh battery with one transformer-free EG4 6000XP inverter into a single closed-loop off-grid setup — 14.3kWh of storage and 6,000W of continuous output, with up to 8,000W of dual-MPPT solar input. It's an indoor installation for both components, built for cabins, homesteads, and off-grid homes, and it scales up to 214.5kWh of storage — or 18kW of combined output — on the same platform if you need more later.\u003c\/p\u003e\n\u003cdiv aria-hidden=\"true\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e14.3kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eTotal Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e6,000W\u003c\/span\u003e\u003cspan class=\"label\"\u003eContinuous Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e8,000W\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax PV Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e214.5kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax Expandable\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ CONFIGURATION ============ --\u003e\n\u003csection class=\"esk-config\"\u003e\n\u003ch3\u003eWhat's In This System\u003c\/h3\u003e\n\u003cp class=\"esk-config-sub\"\u003eTwo components, pre-matched and sold together.\u003c\/p\u003e\n\u003cdiv class=\"esk-config-grid\"\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eBigBattery NEXUS 14.3kWh\u003c\/h4\u003e\n\u003cp\u003eFloor-standing 48V LiFePO₄ battery, expandable up to 15 units in parallel for 214.5kWh total.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eEG4 6000XP Hybrid Inverter\u003c\/h4\u003e\n\u003cp\u003e6,000W continuous output in a transformer-free design, with dual MPPT solar input up to 8,000W.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/6000xp-Features-scaled-2-2048x820.webp?v=1784137205\" alt=\"BigBattery Nexus solar kit — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat Makes This System Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e14.3kWh NEXUS Battery\u003c\/h4\u003e\n\u003cp\u003eLiFePO₄ storage rated for 6,000+ cycles, with a 7.6kW continuous power rating and 270A peak discharge for 1 second.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e6,000W Continuous, 12,000W Surge\u003c\/h4\u003e\n\u003cp\u003eThe EG4 6000XP delivers 6,000W continuously with up to 12,000W of surge headroom (3.5 sec) for motor starts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"18\" width=\"16\" y=\"3\" x=\"4\"\u003e\u003c\/rect\u003e\u003cpath d=\"M9 8h6M9 12h6M9 16h3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eTransformer-Free Design\u003c\/h4\u003e\n\u003cp\u003eA lighter, more efficient architecture than traditional transformer-based inverters, with less standby power lost as heat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003ccircle r=\"4.2\" cy=\"12\" cx=\"12\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 3v2M12 19v2M4.2 12H2.2M21.8 12h-2M5.6 5.6l1.4 1.4M17 17l1.4 1.4M18.4 5.6 17 7M7 17l-1.4 1.4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eDual MPPT, 8kW Solar Input\u003c\/h4\u003e\n\u003cp\u003eTwo independent MPPT trackers pull up to 8,000W combined, adjusting continuously through the day.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect transform=\"rotate(-18 7 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"2.5\"\u003e\u003c\/rect\u003e\u003crect transform=\"rotate(-18 17 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"12.5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eExpandable to 214.5kWh\u003c\/h4\u003e\n\u003cp\u003eUp to 15 NEXUS units can run in parallel with additional inverters, for serious long-term capacity growth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 3 14h6l-1 8L18 10h-6l1-8z\"\u003e\u003c\/path\u003e\u003cpath stroke-dasharray=\"1 3\" d=\"M21 3v5h-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eSub-15ms UPS Transfer\u003c\/h4\u003e\n\u003cp\u003eSwitches to battery power in under 15 milliseconds, keeping sensitive electronics running through a grid drop without a hard reboot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 12a8 8 0 0 1 14-5.3M20 12a8 8 0 0 1-14 5.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M18 3v4h-4M6 21v-4h4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e6,000+ Cycle Life\u003c\/h4\u003e\n\u003cp\u003eThe NEXUS battery is rated for years of daily charge and discharge cycles before capacity meaningfully declines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"esk-accent-2\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eAdvanced BMS Protection\u003c\/h4\u003e\n\u003cp\u003eMulti-layer protection on both the battery and inverter for safe, reliable day-to-day operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eA Pre-Matched Pair, Built for Indoor Installation\u003c\/h3\u003e\n\u003cp\u003eRather than picking a battery and inverter separately and hoping they communicate well together, this system ships as one closed-loop pairing: the NEXUS battery and EG4 6000XP inverter are designed and sold to work with each other directly. The 6000XP's transformer-free design keeps it lighter and more efficient than older inverter architectures, and it switches to battery power in under 15 milliseconds if the grid drops — close to seamless for anything plugged in at the time.\u003c\/p\u003e\n\u003cp\u003eWorth knowing before installing: this is an indoor system on both sides. The NEXUS battery is specified for indoor, floor-standing installation, and the EG4 6000XP is IP20 — neither is rated for direct outdoor exposure. Plan for a garage, utility room, or dedicated power space. In exchange, the platform scales seriously: up to 15 NEXUS units can run in parallel for 214.5kWh of total storage, and additional 6000XP inverters can be added for up to 18kW of combined output on this bundle's available configurations.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBattery — BigBattery NEXUS 14.3kWh (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsable energy\u003c\/td\u003e\n\u003ctd\u003e14.3 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAh capacity\u003c\/td\u003e\n\u003ctd\u003e280 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S1P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCharging \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e140 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous power\u003c\/td\u003e\n\u003ctd\u003e7.6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e270A (1 sec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e140 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e53.5–57.6 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temp range\u003c\/td\u003e\n\u003ctd\u003e32–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temp\u003c\/td\u003e\n\u003ctd\u003e59–95°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity range\u003c\/td\u003e\n\u003ctd\u003e10–95%, no condensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP54, indoor floor-standing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~315 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W×H×D)\u003c\/td\u003e\n\u003ctd\u003e19.7 × 27.5 × 15.7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485, RJ45, CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003e15 parallel (214.5kWh)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eInverter — EG4 6000XP (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eOutput\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e6,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge capacity\u003c\/td\u003e\n\u003ctd\u003e12,000W (3.5s) \/ 11,000W (5s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240 Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e25A @ 240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;15ms single \/ \u0026lt;30ms parallel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eSolar \u0026amp; Charging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT channels\u003c\/td\u003e\n\u003ctd\u003e2 (1 input each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e8,000W (4,000W\/MPPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge current\u003c\/td\u003e\n\u003ctd\u003e140 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e125 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eAC Input \u0026amp; Bypass\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e9,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC bypass\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage range\u003c\/td\u003e\n\u003ctd\u003e46.4–60 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D×W×H)\u003c\/td\u003e\n\u003ctd\u003e5.25 × 18 × 25.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e52.9 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP20, indoor only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParallel capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 16 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003eOperating temperature: 32–113°F. Certification: UL1741.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SCALABILITY ============ --\u003e\n\u003csection class=\"esk-scale\"\u003e\n\u003ch3\u003eOther Configurations Available\u003c\/h3\u003e\n\u003cp\u003eThis same NEXUS and EG4 6000XP platform is sold in several sizes. The row below highlighted in your brand color is the configuration this page describes — everything else is shown for reference if a customer needs a different scale.\u003c\/p\u003e\n\u003ctable class=\"esk-scale-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTier\u003c\/th\u003e\n\u003cth\u003eInverters\u003c\/th\u003e\n\u003cth\u003eBatteries\u003c\/th\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003cth\u003eMax Output\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"current\"\u003e\n\u003ctd class=\"tier\"\u003e1x Inverter\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e14.3 kWh\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003e1x Inverter\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e28.6 kWh\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003e1x Inverter\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e42.9 kWh\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003e2x Inverter\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e28.6 kWh\u003c\/td\u003e\n\u003ctd\u003e12 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003e3x Inverter\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e42.9 kWh\u003c\/td\u003e\n\u003ctd\u003e18 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Nexus-Key-Features-3-scaled-1-2048x841.webp?v=1785056645\" alt=\"BigBattery Nexus — product photo\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/videoframe_6275.png?v=1785056659\" alt=\"BigBattery Nexus solar kit — installation diagram\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat exactly is included in this system?\u003c\/summary\u003e\n\u003cp\u003eOne BigBattery NEXUS 14.3kWh battery and one EG4 6000XP hybrid inverter, sold as a pre-matched closed-loop pair — 14.3kWh of storage and 6,000W of continuous output.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan this system be installed outdoors?\u003c\/summary\u003e\n\u003cp\u003eNo — both components are indoor-rated. The NEXUS battery is specified as indoor floor-standing, and the EG4 6000XP inverter is IP20. Plan for a garage, utility room, or dedicated indoor power space.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is this different from the APEX-based NEXUS bundles?\u003c\/summary\u003e\n\u003cp\u003eThe EG4 6000XP is a transformer-free design, which trims weight and standby losses compared to the APEX inverters' transformer-based construction, and it switches to battery power in under 15ms if the grid drops. It also parallels up to 16 units on its own platform, well beyond the APEX line's 6-unit limit, for systems that need to scale further.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this run my entire house?\u003c\/summary\u003e\n\u003cp\u003eIt depends on your total connected load. At 6,000W continuous (12,000W surge) it covers most efficient homes and cabins comfortably, but a full load calculation is worth doing before sizing your system — especially with well pumps, electric heat, or several large appliances running together.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I expand this system later?\u003c\/summary\u003e\n\u003cp\u003eYes — up to 15 NEXUS battery units can run in parallel for 214.5kWh of total capacity, and the EG4 6000XP itself parallels up to 16 units for more combined output.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the warranty on this system?\u003c\/summary\u003e\n\u003cp\u003eThe NEXUS battery carries a 12-year manufacturer's warranty and the EG4 6000XP inverter carries a 10-year manufacturer's warranty — two separate coverage periods for the two components.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages and currents involved, installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eBattery — BigBattery NEXUS\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/07\/Nexus-SpecSheet-july8.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/07\/NEXUS-User-Manual-1.3.2.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eInverter — EG4 6000XP\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/06\/EG4-6000XP-Inverter-Spec-Sheet.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/06\/EG4-6000XP-Manual.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/06\/EG4%C2%AE-6000XP-Monitoring-System-Working-Modes.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Monitoring System Guide \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/06\/4G-Monitoring-Adapter-Installation-Guide.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Monitoring Adapter Install Guide \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/06\/EG4-6000XP-UL1741-Certificate-of-Compliance.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL1741 Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/07\/EG4-6000XP-Warranty-Document-1.0.0.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Warranty Document \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBattery backed by a \u003cstrong\u003e12-year manufacturer's warranty\u003c\/strong\u003e; inverter backed by a \u003cstrong\u003e10-year manufacturer's warranty\u003c\/strong\u003e — both covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"1 inverter + 1 battery (6 kW + 14.3 kWh)","offer_id":42333858955319,"sku":"K0152","price":4544.0,"currency_code":"USD","in_stock":true},{"title":"1 inverter + 2 batteries (6 kW + 28.6 kWh)","offer_id":42333858988087,"sku":"K0153","price":7689.0,"currency_code":"USD","in_stock":true},{"title":"1 inverter + 3 batteries (6 kW + 42.9 kWh)","offer_id":42333859020855,"sku":"K0157","price":10734.0,"currency_code":"USD","in_stock":true},{"title":"2 inverters + 2 batteries (12 kW + 28.6 kWh)","offer_id":42333859053623,"sku":"K0158","price":9254.0,"currency_code":"USD","in_stock":true},{"title":"3 inverters + 3 batteries (18 kW + 42.9 kWh)","offer_id":42333859086391,"sku":"K0159","price":13864.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/EG4-6000XP-NEXUS-1-1_d93e7272-b221-4ca2-a36a-c25b9a57b538.webp?v=1785087493"},{"product_id":"eg4-48v-wallmount-314ah-all-weather-battery-6000xp-hybrid-inverter-off-grid-home-solar-system","title":"EG4 48V WallMount 314Ah All Weather Battery + 6000XP Hybrid Inverter | Off-Grid Home Solar System","description":"\u003cdiv class=\"esk-pd esk-pd-b eg4314aw-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V LiFePO₄ Battery + EG4 6000XP · IP67 All-Weather\u003c\/p\u003e\n\u003ch2\u003e16kWh of All-Weather Battery Storage, Paired With a 6,000W Inverter\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis system pairs one EG4 314Ah All-Weather battery — 16kWh nominal, 12.86kWh of recommended usable capacity — with one transformer-free EG4 6000XP inverter, delivering 6,000W of continuous split-phase output and up to 8,000W of dual-MPPT solar input. The battery carries an IP67 rating, EG4's next-generation wallmount design, and is compatible with the existing 280Ah form factor for easy retrofits into current systems.\u003c\/p\u003e\n\u003cdiv aria-hidden=\"true\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e16kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eNominal Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e6,000W\u003c\/span\u003e\u003cspan class=\"label\"\u003eContinuous Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,000\u003c\/span\u003e\u003cspan class=\"label\"\u003eCycles (80% DoD)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003eIP67\u003c\/span\u003e\u003cspan class=\"label\"\u003eAll-Weather Rated\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ CONFIGURATION ============ --\u003e\n\u003csection class=\"esk-config\"\u003e\n\u003ch3\u003eWhat's In This System\u003c\/h3\u003e\n\u003cp class=\"esk-config-sub\"\u003eTwo components, pre-matched and sold together.\u003c\/p\u003e\n\u003cdiv class=\"esk-config-grid\"\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eEG4 314Ah All-Weather Battery\u003c\/h4\u003e\n\u003cp\u003e16kWh nominal LiFePO₄ storage, IP67-rated, with active cell balancing and up to 200A continuous discharge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eEG4 6000XP Hybrid Inverter\u003c\/h4\u003e\n\u003cp\u003e6,000W continuous output in a transformer-free design, with dual MPPT solar input up to 8,000W.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/6000xp-Features-scaled-2-2048x820.webp?v=1784137205\" alt=\"EG4 solar kit — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat Makes This System Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e16kWh, Next-Gen Wallmount\u003c\/h4\u003e\n\u003cp\u003eEG4's newest wallmount platform, with 12.86kWh of recommended usable capacity and drop-in compatibility with existing 280Ah form-factor systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath stroke=\"none\" fill=\"currentColor\" d=\"M12 8c-1.5 2-2.5 3.3-2.5 4.5a2.5 2.5 0 0 0 5 0C14.5 11.3 13.5 10 12 8Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIP67 All-Weather Rating\u003c\/h4\u003e\n\u003cp\u003eA higher weatherproofing standard than most wallmount batteries in this class, built for direct outdoor installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 12a8 8 0 0 1 14-5.3M20 12a8 8 0 0 1-14 5.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M18 3v4h-4M6 21v-4h4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e10,000-Cycle Life\u003c\/h4\u003e\n\u003cp\u003eRated for 10,000 cycles at 0.5C and 80% depth of discharge to 70% end-of-life capacity — well beyond typical residential battery ratings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e200A Continuous Discharge\u003c\/h4\u003e\n\u003cp\u003eUp to 10.2kW of continuous discharge power, with a 250A battery breaker and 1,700A short-circuit rating for real-world fault protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"18\" width=\"16\" y=\"3\" x=\"4\"\u003e\u003c\/rect\u003e\u003cpath d=\"M9 8h6M9 12h6M9 16h3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eTransformer-Free 6000XP\u003c\/h4\u003e\n\u003cp\u003eThe paired inverter uses a lighter, more efficient transformer-free design, delivering 6,000W continuous with 8,000W of dual-MPPT solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"esk-accent-2\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eActive Cell Balancing BMS\u003c\/h4\u003e\n\u003cp\u003eAn integrated battery management system with active balancing, plus protection against over\/under-voltage, over-current, and temperature extremes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect transform=\"rotate(-18 7 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"2.5\"\u003e\u003c\/rect\u003e\u003crect transform=\"rotate(-18 17 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"12.5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eUp to 32 Units in Parallel\u003c\/h4\u003e\n\u003cp\u003eA high parallel ceiling for a wallmount battery, giving serious room to scale capacity well beyond a single unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 3 14h6l-1 8L18 10h-6l1-8z\"\u003e\u003c\/path\u003e\u003cpath stroke-dasharray=\"1 3\" d=\"M21 3v5h-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eSub-15ms UPS Transfer\u003c\/h4\u003e\n\u003cp\u003eThe inverter switches to battery power in under 15 milliseconds, keeping sensitive electronics running through a grid drop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eEG4's Next-Generation Wallmount Battery\u003c\/h3\u003e\n\u003cp\u003eThe 314Ah All-Weather is EG4's newest wallmount platform, built as a capacity and durability step up from their 280Ah line while keeping the same physical form factor — meaning it slots into existing 280Ah-based installs without a redesign. At 16kWh nominal (12.86kWh recommended usable at 80%) with a 10,000-cycle life rating, it's built for long-term daily use rather than occasional backup duty.\u003c\/p\u003e\n\u003cp\u003ePaired with the transformer-free EG4 6000XP, the system delivers 6,000W of continuous output, up to 8,000W of dual-MPPT solar input, and a sub-15ms transfer to battery power if the grid drops. The battery's IP67 rating covers direct outdoor installation, while the inverter itself remains IP20 and needs an indoor or fully enclosed location — plan for the battery to go outside if needed, and the inverter to stay covered.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBattery — EG4 314Ah All-Weather (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal energy capacity\u003c\/td\u003e\n\u003ctd\u003e16 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended usable energy\u003c\/td\u003e\n\u003ctd\u003e12.86 kWh (80%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated capacity\u003c\/td\u003e\n\u003ctd\u003e315 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCharging \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e56–57 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge cut-off voltage\u003c\/td\u003e\n\u003ctd\u003e44.8 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous charge current\u003c\/td\u003e\n\u003ctd\u003e157 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous charge\/discharge power\u003c\/td\u003e\n\u003ctd\u003e8 kW \/ 10.2 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eProtection \u0026amp; Fault Handling\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort circuit current\u003c\/td\u003e\n\u003ctd\u003e1,700A (15ms delay)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak power\u003c\/td\u003e\n\u003ctd\u003e12.8 kW (3 sec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery breaker\u003c\/td\u003e\n\u003ctd\u003e250 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRound-trip efficiency\u003c\/td\u003e\n\u003ctd\u003e95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP67 (all-weather)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging temp range\u003c\/td\u003e\n\u003ctd\u003e32–122°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarging temp range\u003c\/td\u003e\n\u003ctd\u003e-4–131°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;9,843 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel units\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 14px !important;\"\u003eDimensions (H×W×D): 34.6 × 21.7 × 9.3 in. Weight not confirmed — see note at top of file. Cycle life: 10,000 @ 0.5C, 80% DoD. Warranty: 10 years or 10,000 cycles. Certifications: UL1973, UL9540A; UL9540 configuration-dependent, see manufacturer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eInverter — EG4 6000XP (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eOutput\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e6,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge capacity\u003c\/td\u003e\n\u003ctd\u003e12,000W (3.5s) \/ 11,000W (5s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240 Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e25A @ 240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;15ms single \/ \u0026lt;30ms parallel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eSolar \u0026amp; Charging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT channels\u003c\/td\u003e\n\u003ctd\u003e2 (1 input each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e8,000W (4,000W\/MPPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge current\u003c\/td\u003e\n\u003ctd\u003e140 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e125 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eAC Input \u0026amp; Bypass\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e9,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC bypass\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage range\u003c\/td\u003e\n\u003ctd\u003e46.4–60 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D×W×H)\u003c\/td\u003e\n\u003ctd\u003e5.25 × 18 × 25.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e52.9 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP20, indoor only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParallel capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 16 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003eInverter operating temperature: 32–113°F. Certification: UL1741.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SCALABILITY ============ --\u003e\n\u003csection class=\"esk-scale\"\u003e\n\u003ch3\u003eOther Configurations Available\u003c\/h3\u003e\n\u003cp\u003eThis same battery and inverter platform is sold in several sizes. The row below highlighted in your brand color is the configuration this page describes — everything else is shown for reference if a customer needs a different scale.\u003c\/p\u003e\n\u003ctable class=\"esk-scale-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTier\u003c\/th\u003e\n\u003cth\u003eInverters\u003c\/th\u003e\n\u003cth\u003eBatteries\u003c\/th\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003cth\u003eMax Output\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"current\"\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e16 kWh\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e32 kWh\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e48 kWh\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eLarge\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e32 kWh\u003c\/td\u003e\n\u003ctd\u003e12 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003e3-Phase\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e48 kWh\u003c\/td\u003e\n\u003ctd\u003e18 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/EG4-Inverter-Certification-scaled-4-2048x820.webp?v=1784137145\" alt=\"EG4 solar kit — installation diagram\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat exactly is included in this system?\u003c\/summary\u003e\n\u003cp\u003eOne EG4 314Ah All-Weather battery and one EG4 6000XP hybrid inverter, sold as a pre-matched pair — 16kWh nominal capacity (12.86kWh recommended usable) and 6,000W of continuous output.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan this battery drop into an existing 280Ah system?\u003c\/summary\u003e\n\u003cp\u003eYes — EG4 built the 314Ah battery in the same form factor as their 280Ah line specifically so it can slot into existing systems and installations without a redesign.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan it really be installed outdoors?\u003c\/summary\u003e\n\u003cp\u003eThe battery can — it's IP67-rated for direct outdoor installation. The EG4 6000XP inverter is IP20 and still needs a covered, indoor-equivalent location such as a garage, utility room, or power shed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow does the cycle life compare to other batteries?\u003c\/summary\u003e\n\u003cp\u003eThis battery is rated for 10,000 cycles at 0.5C and 80% depth of discharge (to 70% end-of-life capacity) — higher than the 8,000+ cycle rating common on other wallmount LiFePO₄ batteries in this class.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this run my entire house?\u003c\/summary\u003e\n\u003cp\u003eIt depends on your total connected load. At 6,000W continuous (12,000W surge) it covers most efficient homes and cabins comfortably, but a full load calculation is worth doing before sizing your system — especially with well pumps, electric heat, or several large appliances running together.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the warranty on this system?\u003c\/summary\u003e\n\u003cp\u003eThe battery is backed by a 10-year (or 10,000-cycle) manufacturer's warranty. The inverter's warranty is stated as 5 years on this product's own page.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages and currents involved, installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eBattery — EG4 314Ah All-Weather\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2025\/04\/EG4-Outdoor-314Ah-WallMount-Battery-Spec-Sheet.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2025\/04\/EG4-Outdoor-314Ah-WallMount-Battery-User-Manual.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2026\/01\/EG4-WallMount-314Ah-All-Weather-Battery-UL-9540A-VOC.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL9540A Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2026\/01\/EG4-WallMount-314Ah-All-Weather-Battery-UL-9540-COC.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL9540 Certificate \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eInverter — EG4 6000XP\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/06\/EG4-6000XP-Inverter-Spec-Sheet.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/06\/EG4-6000XP-Manual.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/06\/EG4%C2%AE-6000XP-Monitoring-System-Working-Modes.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Monitoring System Guide \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/06\/4G-Monitoring-Adapter-Installation-Guide.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Monitoring Adapter Install Guide \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/06\/EG4-6000XP-UL1741-Certificate-of-Compliance.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL1741 Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/07\/EG4-6000XP-Warranty-Document-1.0.0.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Warranty Document \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBattery backed by a \u003cstrong\u003e10-year (or 10,000-cycle) manufacturer's warranty\u003c\/strong\u003e; inverter backed by a \u003cstrong\u003e5-year manufacturer's warranty\u003c\/strong\u003e — both covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"1 inverter + 1 battery (6 kW + 16 kWh)","offer_id":42333861904439,"sku":"K0268","price":5414.97,"currency_code":"USD","in_stock":true},{"title":"1 inverter + 2 batteries (6 kW + 32 kWh)","offer_id":42333861937207,"sku":"K0269","price":9524.0,"currency_code":"USD","in_stock":true},{"title":"1 inverter + 3 batteries (6 kW + 48 kWh)","offer_id":42333861969975,"sku":"K0270","price":13634.0,"currency_code":"USD","in_stock":true},{"title":"2 inverters + 2 batteries (12 kW + 32 kWh)","offer_id":42333862002743,"sku":"K0271","price":11024.0,"currency_code":"USD","in_stock":true},{"title":"3 inverters + 3 batteries (18 kW + 48 kWh)","offer_id":42333862035511,"sku":"K0272","price":16634.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/314Ah-All-Weather-6000XP-scaled-1_26dfd3f1-70ef-4fdd-aced-3f58c2db5415.webp?v=1785087979"},{"product_id":"husky-2-5-12kwh-kit-victron-48v-multiplus-ii-120v-3-000w-inverter-charger-off-grid-back-up-system","title":"HUSKY 2 5.12kWh Battery Kit + Victron 48V MultiPlus-II 120V 3,000W Hybrid Inverter | Off-Grid Back-Up System","description":"\u003cdiv class=\"esk-pd esk-pd-b husky2v3k-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V LiFePO₄ Kit · Victron MultiPlus-II · RV \u0026amp; Mobile Ready\u003c\/p\u003e\n\u003ch2\u003e5.12kWh of Battery Storage Paired With a Victron Inverter\/Charger\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis kit pairs a 48V HUSKY2 5.12kWh LiFePO₄ battery with a Victron MultiPlus-II 3000VA inverter\/charger and a Cerbo GX monitoring device — a compact, rugged setup built for RVs, camper vans, and mobile or backup power rather than whole-home solar. Victron's PowerAssist technology lets the battery supplement limited shore power or a generator instead of tripping a breaker, and the whole system reports back over Victron's VRM monitoring app.\u003c\/p\u003e\n\u003cdiv aria-hidden=\"true\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e5.12kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eBattery Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e3,000VA\u003c\/span\u003e\u003cspan class=\"label\"\u003eContinuous Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e100A\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax Discharge\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003eIP65\u003c\/span\u003e\u003cspan class=\"label\"\u003eBattery Rating\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ CONFIGURATION ============ --\u003e\n\u003csection class=\"esk-config\"\u003e\n\u003ch3\u003eWhat's In This Kit\u003c\/h3\u003e\n\u003cp class=\"esk-config-sub\"\u003eThree components, pre-matched and sold together (plus a comm cable).\u003c\/p\u003e\n\u003cdiv class=\"esk-config-grid\"\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eHUSKY2 INV Battery\u003c\/h4\u003e\n\u003cp\u003e5.12kWh LiFePO₄, IP65\/NEMA 4X rated, with self-heating for cold-weather operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eVictron MultiPlus-II 3000\u003c\/h4\u003e\n\u003cp\u003e3,000VA pure sine wave inverter\/charger with PowerAssist and a \u0026lt;20ms no-break transfer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"1.5\" height=\"12\" width=\"18\" y=\"5\" x=\"3\"\u003e\u003c\/rect\u003e\u003cpath d=\"M8 20h8M12 17v3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eVictron Cerbo GX\u003c\/h4\u003e\n\u003cp\u003eSystem monitoring and control, with free remote access via Victron's VRM portal and app.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003ch3\u003eWhat Makes This Kit Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e5.12kWh HUSKY2 Battery\u003c\/h4\u003e\n\u003cp\u003eTier-1 LiFePO₄ cells with a 7,500W max continuous power rating and 150A peak discharge for 3 seconds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e3,000VA \/ 2,400W Continuous\u003c\/h4\u003e\n\u003cp\u003eRated 3,000VA (2,400W at 25°C) with 5,500W of peak power for motor starts and other brief surges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 4 12 13M12 2V13M20 4 12 13M12 13V21\"\u003e\u003c\/path\u003e\u003ccircle stroke=\"none\" fill=\"currentColor\" r=\"2\" cy=\"13\" cx=\"12\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\n\u003ch4\u003ePowerAssist Technology\u003c\/h4\u003e\n\u003cp\u003eWhen shore power or a generator can't cover a load spike, the battery fills the gap automatically instead of tripping a breaker.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 3 14h6l-1 8L18 10h-6l1-8z\"\u003e\u003c\/path\u003e\u003cpath stroke-dasharray=\"1 3\" d=\"M21 3v5h-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e\u0026lt;20ms No-Break Transfer\u003c\/h4\u003e\n\u003cp\u003eSwitches to battery power fast enough that computers and other sensitive electronics keep running through a grid drop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath stroke=\"none\" fill=\"currentColor\" d=\"M12 8c-1.5 2-2.5 3.3-2.5 4.5a2.5 2.5 0 0 0 5 0C14.5 11.3 13.5 10 12 8Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIP65 Battery, Self-Heating\u003c\/h4\u003e\n\u003cp\u003eThe battery is dust- and splash-resistant with an internal heater for reliable charging in cold weather.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"1.5\" height=\"12\" width=\"18\" y=\"5\" x=\"3\"\u003e\u003c\/rect\u003e\u003cpath d=\"M8 20h8M12 17v3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eCerbo GX Remote Monitoring\u003c\/h4\u003e\n\u003cp\u003eTrack and adjust the whole system from anywhere through Victron's free VRM portal and mobile app.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect transform=\"rotate(-18 7 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"2.5\"\u003e\u003c\/rect\u003e\u003crect transform=\"rotate(-18 17 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"12.5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eParallels Up to 6 Units\u003c\/h4\u003e\n\u003cp\u003eSix units combine for 15kW \/ 18kVA of output with 210A of charging capacity, or split-phase and 3-phase configurations with fewer units.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"esk-accent-2\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eVibration-Resistant Build\u003c\/h4\u003e\n\u003cp\u003eBuilt to hold up to the bumps and vibration of mobile and vehicle-based installations, not just stationary ones.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eBuilt for Mobile Power, Not Whole-Home Solar\u003c\/h3\u003e\n\u003cp\u003eThis kit is sized and positioned differently from a whole-home off-grid system: it's a compact 5.12kWh battery paired with a 3,000VA Victron inverter\/charger, aimed at RVs, camper vans, and backup or mobile applications rather than powering a house. The Victron MultiPlus-II has no built-in solar charge controller — it pairs with a separate MPPT solar controller if you want panels feeding the battery, and on its own handles AC charging, inverting, and PowerAssist duties.\u003c\/p\u003e\n\u003cp\u003ePowerAssist is the standout feature here: when shore power or a generator can't quite cover a load spike — a microwave and an AC unit kicking on together, for instance — the battery fills the gap automatically instead of the breaker tripping. Pair that with a Cerbo GX for remote monitoring over Victron's VRM app, and the whole system stays visible and controllable from a phone, whether you're parked in a driveway or off the grid entirely.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBattery — HUSKY2 INV (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ekWh capacity\u003c\/td\u003e\n\u003ctd\u003e5.12 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAh capacity\u003c\/td\u003e\n\u003ctd\u003e100 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCharging \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous power\u003c\/td\u003e\n\u003ctd\u003e7,500 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended continuous power\u003c\/td\u003e\n\u003ctd\u003e4,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e150A (3 sec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–122°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temp\u003c\/td\u003e\n\u003ctd\u003e59–95°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelf-heating\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e100 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D×W×H)\u003c\/td\u003e\n\u003ctd\u003e12.6 × 18.1 × 9.8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus, RS485 (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel units\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eInverter\/Charger — Victron MultiPlus-II 48\/3000\/35-50 (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eOutput\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous output (25°C)\u003c\/td\u003e\n\u003ctd\u003e3,000 VA \/ 2,400 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous output (40°C)\u003c\/td\u003e\n\u003ctd\u003e2,200 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak power\u003c\/td\u003e\n\u003ctd\u003e5,500 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120 Vac ±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCharging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e38–66 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge voltage (absorption)\u003c\/td\u003e\n\u003ctd\u003e57.6 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge voltage (float)\u003c\/td\u003e\n\u003ctd\u003e55.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax battery charge current\u003c\/td\u003e\n\u003ctd\u003e35 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar charging\u003c\/td\u003e\n\u003ctd\u003eNot built in — pairs with separate MPPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eAC Input \u0026amp; Transfer\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input current\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;20 ms (no-break)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary output\u003c\/td\u003e\n\u003ctd\u003e32 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H×W×D)\u003c\/td\u003e\n\u003ctd\u003e22.5 × 10.9 × 5.8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e42 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure rating\u003c\/td\u003e\n\u003ctd\u003eIP22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-40°F to 140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003eParallel: up to 6 units (6× units = 15kW \/ 18kVA combined, 210A charging); 2 units for 240V split-phase; 3 units for 3-phase output. Certification: UL1741.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this kit include solar charging?\u003c\/summary\u003e\n\u003cp\u003eNo — the Victron MultiPlus-II in this kit is an inverter\/charger without a built-in MPPT solar controller. If you want solar panels charging the battery, you'll need to add a separate MPPT solar charge controller; the MultiPlus-II is designed to work alongside one.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does PowerAssist actually do?\u003c\/summary\u003e\n\u003cp\u003eIt lets the battery supplement AC input that's running near its limit — shore power or a generator, for example — so a brief load spike doesn't trip a breaker or overload the source. When the load drops back down, any spare power goes toward recharging the battery.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the Cerbo GX for?\u003c\/summary\u003e\n\u003cp\u003eIt's Victron's monitoring and control device for the system. Connected to the internet, it gives free remote access through Victron's VRM portal and mobile app, so you can check status or adjust settings from anywhere.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this really meant for RVs and vans?\u003c\/summary\u003e\n\u003cp\u003eYes — the battery's vibration-resistant construction and the whole kit's compact footprint are specifically suited to mobile installations, on top of working just as well for stationary off-grid or backup use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I connect more than one inverter?\u003c\/summary\u003e\n\u003cp\u003eYes — up to 6 units can run in parallel for more combined power, 2 units can be configured for 240V split-phase output, and 3 units can be configured for three-phase.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the warranty on this system?\u003c\/summary\u003e\n\u003cp\u003eThe HUSKY2 battery carries a 12-year manufacturer's warranty and the Victron MultiPlus-II carries a 5-year manufacturer's warranty — two separate coverage periods for the two components.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages and currents involved, installation should be handled by a qualified, licensed electrician or installer familiar with your local code requirements — especially for vehicle-based or marine installations, which often have their own separate code considerations.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Screenshot_2026-07-26_132108.png?v=1785061298\" alt=\"BigBattery Husky — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eBattery — HUSKY2 INV\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/05\/5-1-26HUSKY2-INV-Inverter-Version-SpecSheet.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/06\/HUSKY-2-USER-MANUAL-1.8-Inverter-Version.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/07\/48V-HUSKY2-DOC-CE.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e CE Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/07\/48V-HUSKY2-DOC-UN38.3.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UN38.3 Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/05\/Safety-Data-Sheet_BigBattery_LFP.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Safety Data Sheet \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eInverter — Victron MultiPlus-II 3000\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/08\/Datasheet-MultiPlus-II-120V-EN.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBattery backed by a \u003cstrong\u003e12-year manufacturer's warranty\u003c\/strong\u003e; inverter backed by a \u003cstrong\u003e5-year manufacturer's warranty\u003c\/strong\u003e — both covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":42333722181687,"sku":"K0137","price":2920.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Main-4.webp?v=1785062119"},{"product_id":"husky-2-10-24kwh-battery-kit-victron-48v-multiplus-ii-120v-5000w-hybrid-inverter-off-grid-back-up-system","title":"HUSKY 2 10.24kWh Battery Kit + Victron 48V MultiPlus-II 120V 5000W Hybrid Inverter | Off-Grid Back-Up System","description":"\u003cdiv class=\"esk-pd esk-pd-b husky2v5k-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V LiFePO₄ Kit · Victron MultiPlus-II 5000 · RV \u0026amp; Mobile Ready\u003c\/p\u003e\n\u003ch2\u003e10.24kWh of Battery Storage Paired With a Victron 5,000VA Inverter\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis kit pairs two 48V HUSKY2 5.12kWh LiFePO₄ batteries (10.24kWh total) with a Victron MultiPlus-II 5,000VA inverter\/charger and a Cerbo GX monitoring device — a step up in both capacity and power from the smaller 3,000VA version, still built for RVs, larger mobile setups, cabins, and off-grid or backup power. Victron's PowerAssist technology lets the batteries supplement limited shore power or a generator instead of tripping a breaker, and the whole system reports back over Victron's VRM monitoring app.\u003c\/p\u003e\n\u003cdiv aria-hidden=\"true\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10.24kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eTotal Battery Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e5,000VA\u003c\/span\u003e\u003cspan class=\"label\"\u003eContinuous Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e200A\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax Discharge (Combined)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003eIP65\u003c\/span\u003e\u003cspan class=\"label\"\u003eBattery Rating\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ CONFIGURATION ============ --\u003e\n\u003csection class=\"esk-config\"\u003e\n\u003ch3\u003eWhat's In This Kit\u003c\/h3\u003e\n\u003cp class=\"esk-config-sub\"\u003eThree components, pre-matched and sold together (plus comm\/BMS cables).\u003c\/p\u003e\n\u003cdiv class=\"esk-config-grid\"\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 2\u003c\/p\u003e\n\u003ch4\u003eHUSKY2 INV Battery\u003c\/h4\u003e\n\u003cp\u003e5.12kWh LiFePO₄ each (10.24kWh combined), IP65\/NEMA 4X rated, with self-heating for cold-weather operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eVictron MultiPlus-II 5000\u003c\/h4\u003e\n\u003cp\u003e5,000VA pure sine wave inverter\/charger with PowerAssist and a \u0026lt;20ms no-break transfer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"1.5\" height=\"12\" width=\"18\" y=\"5\" x=\"3\"\u003e\u003c\/rect\u003e\u003cpath d=\"M8 20h8M12 17v3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eVictron Cerbo GX\u003c\/h4\u003e\n\u003cp\u003eSystem monitoring and control, with free remote access via Victron's VRM portal and app.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003ch3\u003eWhat Makes This Kit Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e10.24kWh, Two Batteries\u003c\/h4\u003e\n\u003cp\u003eTwo HUSKY2 Tier-1 LiFePO₄ batteries combine for 10.24kWh, each rated for 7,500W max continuous power and 150A peak discharge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e5,000VA \/ 4,000W Continuous\u003c\/h4\u003e\n\u003cp\u003eRated 5,000VA (4,000W at 25°C) with 9,000W of peak power for motor starts and other brief surges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 4 12 13M12 2V13M20 4 12 13M12 13V21\"\u003e\u003c\/path\u003e\u003ccircle stroke=\"none\" fill=\"currentColor\" r=\"2\" cy=\"13\" cx=\"12\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\n\u003ch4\u003ePowerAssist Technology\u003c\/h4\u003e\n\u003cp\u003eWhen shore power or a generator can't cover a load spike, the batteries fill the gap automatically instead of tripping a breaker.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 3 14h6l-1 8L18 10h-6l1-8z\"\u003e\u003c\/path\u003e\u003cpath stroke-dasharray=\"1 3\" d=\"M21 3v5h-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e\u0026lt;20ms No-Break Transfer\u003c\/h4\u003e\n\u003cp\u003eSwitches to battery power fast enough that computers and other sensitive electronics keep running through a grid drop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath stroke=\"none\" fill=\"currentColor\" d=\"M12 8c-1.5 2-2.5 3.3-2.5 4.5a2.5 2.5 0 0 0 5 0C14.5 11.3 13.5 10 12 8Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eIP65 Battery, Self-Heating\u003c\/h4\u003e\n\u003cp\u003eThe battery is dust- and splash-resistant with an internal heater for reliable charging in cold weather.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"1.5\" height=\"12\" width=\"18\" y=\"5\" x=\"3\"\u003e\u003c\/rect\u003e\u003cpath d=\"M8 20h8M12 17v3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eCerbo GX Remote Monitoring\u003c\/h4\u003e\n\u003cp\u003eTrack and adjust the whole system from anywhere through Victron's free VRM portal and mobile app.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect transform=\"rotate(-18 7 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"2.5\"\u003e\u003c\/rect\u003e\u003crect transform=\"rotate(-18 17 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"12.5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eParallels Up to 6 Units\u003c\/h4\u003e\n\u003cp\u003eSix units combine for up to 30kVA of output with 420A of charging capacity, or split-phase and 3-phase configurations with fewer units.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"esk-accent-2\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eVibration-Resistant Build\u003c\/h4\u003e\n\u003cp\u003eBuilt to hold up to the bumps and vibration of mobile and vehicle-based installations, not just stationary ones.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eA Step Up in Both Capacity and Power\u003c\/h3\u003e\n\u003cp\u003eThis kit scales up from BigBattery's smaller HUSKY2 + Victron kit on both fronts: two 5.12kWh batteries (10.24kWh combined) paired with a 5,000VA Victron inverter\/charger, rather than one battery and a 3,000VA unit. It still leans toward mobile and off-grid applications — RVs, larger vans, cabins, backup power — rather than whole-home solar, and the Victron MultiPlus-II still has no built-in solar charge controller of its own; it pairs with a separate MPPT solar controller if you want panels feeding the batteries.\u003c\/p\u003e\n\u003cp\u003ePowerAssist is the standout feature carried over from the smaller kit: when shore power or a generator can't quite cover a load spike, the batteries fill the gap automatically instead of the breaker tripping — and with 4,000W of continuous headroom this time, that spike can be larger. Pair that with a Cerbo GX for remote monitoring over Victron's VRM app, and the whole system stays visible and controllable from a phone, whether you're parked in a driveway or off the grid entirely.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Screenshot_2026-07-26_132108.png?v=1785061298\" alt=\"BigBattery Husky — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBattery — HUSKY2 INV (×2)\u003c\/p\u003e\n\u003cp style=\"font-family: var(--font-mono); font-size: 12.5px; color: var(--muted) !important; margin-bottom: 14px !important; margin-top: -8px !important;\"\u003ePer-unit values below; this kit includes 2 batteries (10.24kWh combined).\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ekWh capacity\u003c\/td\u003e\n\u003ctd\u003e5.12 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAh capacity\u003c\/td\u003e\n\u003ctd\u003e100 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCharging \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous power\u003c\/td\u003e\n\u003ctd\u003e7,500 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended continuous power\u003c\/td\u003e\n\u003ctd\u003e4,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e150A (3 sec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temp range\u003c\/td\u003e\n\u003ctd\u003e-4–122°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temp\u003c\/td\u003e\n\u003ctd\u003e59–95°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelf-heating\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e100 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D×W×H)\u003c\/td\u003e\n\u003ctd\u003e12.6 × 18.1 × 9.8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus, RS485 (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel units\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eInverter\/Charger — Victron MultiPlus-II 48\/5000\/70-95 (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eOutput\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous output (25°C)\u003c\/td\u003e\n\u003ctd\u003e5,000 VA \/ 4,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous output (40°C)\u003c\/td\u003e\n\u003ctd\u003e3,700 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak power\u003c\/td\u003e\n\u003ctd\u003e9,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120 Vac ±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e96%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCharging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e38–66 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge voltage (absorption)\u003c\/td\u003e\n\u003ctd\u003e57.6 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge voltage (float)\u003c\/td\u003e\n\u003ctd\u003e55.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax battery charge current\u003c\/td\u003e\n\u003ctd\u003e70 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar charging\u003c\/td\u003e\n\u003ctd\u003eNot built in — pairs with separate MPPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eAC Input \u0026amp; Transfer\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input current\u003c\/td\u003e\n\u003ctd\u003e95 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;20 ms (no-break)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary output\u003c\/td\u003e\n\u003ctd\u003e48 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Other\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H×W×D)\u003c\/td\u003e\n\u003ctd\u003e26.6 × 13.0 × 6.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e71 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure rating\u003c\/td\u003e\n\u003ctd\u003eIP22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-40°F to 140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003eParallel: up to 6 units (linear scaling of the figures above, e.g. 6 units ≈ 30kVA combined \/ 420A combined charging); 2 units for 240V split-phase; 3 units for 3-phase output. This model's UL1741 listing was shown as \"pending\" on Victron's own datasheet — worth confirming current status before publishing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this kit include solar charging?\u003c\/summary\u003e\n\u003cp\u003eNo — the Victron MultiPlus-II in this kit is an inverter\/charger without a built-in MPPT solar controller. If you want solar panels charging the batteries, you'll need to add a separate MPPT solar charge controller; the MultiPlus-II is designed to work alongside one.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does PowerAssist actually do?\u003c\/summary\u003e\n\u003cp\u003eIt lets the batteries supplement AC input that's running near its limit — shore power or a generator, for example — so a brief load spike doesn't trip a breaker or overload the source. When the load drops back down, any spare power goes toward recharging the batteries.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the Cerbo GX for?\u003c\/summary\u003e\n\u003cp\u003eIt's Victron's monitoring and control device for the system. Connected to the internet, it gives free remote access through Victron's VRM portal and mobile app, so you can check status or adjust settings from anywhere.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this really meant for RVs and vans?\u003c\/summary\u003e\n\u003cp\u003eYes — the batteries' vibration-resistant construction and the whole kit's compact footprint are specifically suited to mobile installations, on top of working just as well for stationary off-grid or backup use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I connect more than one inverter?\u003c\/summary\u003e\n\u003cp\u003eYes — up to 6 units can run in parallel for more combined power, 2 units can be configured for 240V split-phase output, and 3 units can be configured for three-phase.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the warranty on this system?\u003c\/summary\u003e\n\u003cp\u003eThe HUSKY2 battery carries a 12-year manufacturer's warranty and the Victron MultiPlus-II carries a 5-year manufacturer's warranty — two separate coverage periods for the two components.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages and currents involved, installation should be handled by a qualified, licensed electrician or installer familiar with your local code requirements — especially for vehicle-based or marine installations, which often have their own separate code considerations.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eBattery — HUSKY2 INV\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/05\/5-1-26HUSKY2-INV-Inverter-Version-SpecSheet.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/06\/HUSKY-2-USER-MANUAL-1.8-Inverter-Version.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/07\/48V-HUSKY2-DOC-CE.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e CE Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/07\/48V-HUSKY2-DOC-UN38.3.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UN38.3 Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/05\/Safety-Data-Sheet_BigBattery_LFP.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Safety Data Sheet \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eInverter — Victron MultiPlus-II 3000\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/08\/Datasheet-MultiPlus-II-120V-EN.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBattery backed by a \u003cstrong\u003e12-year manufacturer's warranty\u003c\/strong\u003e; inverter backed by a \u003cstrong\u003e5-year manufacturer's warranty\u003c\/strong\u003e — both covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":42333750427703,"sku":"K0138","price":4926.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Main-1-1.webp?v=1785062523"},{"product_id":"eg4-wallmount-48v-16kwh-indoor-battery-ess-314ah-eg4-flexboss21-hybrid-inverter-grid-tied-system","title":"EG4 WallMount 48V 16kWh Indoor Battery ESS | 314Ah | EG4 FlexBOSS21 Hybrid Inverter | Grid-Tied System","description":"\u003cdiv class=\"esk-pd esk-pd-b eg4314fb21-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V Grid-Tied ESS · EG4 314Ah Indoor + FlexBOSS21\u003c\/p\u003e\n\u003ch2\u003e16kWh of Certified Energy Storage, Paired With a 16kW Hybrid Inverter\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis system pairs one EG4 314Ah Indoor battery (16kWh nominal, 12.86kWh recommended usable) with one EG4 FlexBOSS21 hybrid inverter — up to 16kW of continuous output with PV and grid combined, and up to 21kW of solar input across 3 MPPT trackers and 5 strings. It's built as a UL 9540-eligible pairing with closed-loop communication, GridBOSS-ready for larger system control, and works grid-tied or fully off-grid.\u003c\/p\u003e\n\u003cdiv aria-hidden=\"true\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e16kWh\u003c\/span\u003e\u003cspan class=\"label\"\u003eBattery Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e16kW\u003c\/span\u003e\u003cspan class=\"label\"\u003eOutput (PV + Grid)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e21kW\u003c\/span\u003e\u003cspan class=\"label\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003eUL 9540\u003c\/span\u003e\u003cspan class=\"label\"\u003eEligible Pairing\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ CONFIGURATION ============ --\u003e\n\u003csection class=\"esk-config\"\u003e\n\u003ch3\u003eWhat's In This System\u003c\/h3\u003e\n\u003cp class=\"esk-config-sub\"\u003eTwo components, pre-matched and sold together.\u003c\/p\u003e\n\u003cdiv class=\"esk-config-grid\"\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eEG4 314Ah Indoor Battery\u003c\/h4\u003e\n\u003cp\u003e16kWh nominal, IP20 indoor-rated, with a third-generation BMS and Auto-ID setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-config-card\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cp class=\"qty\"\u003eQty 1\u003c\/p\u003e\n\u003ch4\u003eEG4 FlexBOSS21 Inverter\u003c\/h4\u003e\n\u003cp\u003eUp to 16kW continuous output with PV and grid combined, and 21kW of max solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Screenshot_2026-07-26_183740.png?v=1785080309\" alt=\"EG4 — product photo\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Flexboss-All-weather-Rain.webp?v=1784837257\" alt=\"EG4 solar kit — product photo\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eWhat Makes This System Different\u003c\/h3\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"9\" width=\"17\" y=\"8\" x=\"2\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"1\" height=\"3\" width=\"2.5\" y=\"11\" x=\"19\"\u003e\u003c\/rect\u003e\u003crect stroke=\"none\" fill=\"currentColor\" rx=\"0.6\" height=\"4.4\" width=\"4\" y=\"10.3\" x=\"5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003e16kWh Indoor Battery\u003c\/h4\u003e\n\u003cp\u003e12.86kWh of recommended usable capacity, cross-compatible with other EG4 battery models for future scaling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" fill=\"currentColor\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e16kW Combined, 6kW Battery-Only\u003c\/h4\u003e\n\u003cp\u003eUp to 16kW continuous with PV and grid working together, or 6kW continuous from the battery alone if grid and solar are both unavailable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003ccircle r=\"4.2\" cy=\"12\" cx=\"12\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 3v2M12 19v2M4.2 12H2.2M21.8 12h-2M5.6 5.6l1.4 1.4M17 17l1.4 1.4M18.4 5.6 17 7M7 17l-1.4 1.4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003e21kW Solar, 3 MPPT \/ 5 Strings\u003c\/h4\u003e\n\u003cp\u003eThree MPPT trackers across five total input strings, for granular tracking on complex or multi-orientation roof layouts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"esk-accent-2\"\u003e\u003cpath d=\"M12 2 4 5v6c0 5 3.4 8.4 8 9.9 4.6-1.5 8-4.9 8-9.9V5l-8-3Z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12.3 10.8 14.6 15.5 9.9\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eUL 9540-Eligible Pairing\u003c\/h4\u003e\n\u003cp\u003eThis battery and inverter combination is built and certified to be paired together for grid-tied energy storage system installs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003ccircle r=\"2.5\" cy=\"12\" cx=\"6\"\u003e\u003c\/circle\u003e\u003ccircle r=\"2.5\" cy=\"12\" cx=\"18\"\u003e\u003c\/circle\u003e\u003cpath stroke-dasharray=\"2 2\" d=\"M8.5 12h7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eGridBOSS Integration\u003c\/h4\u003e\n\u003cp\u003eConnects with EG4's GridBOSS hub for smart load management, AC coupling, and generator support at a system level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 20v-3M9 20v-7M14 20v-11M19 20V4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eWiFi, Cellular \u0026amp; Ethernet\u003c\/h4\u003e\n\u003cp\u003eThe inverter ships with a WiFi dongle included by default, plus cellular and Ethernet connectivity options for remote monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"1.5\" height=\"12\" width=\"18\" y=\"5\" x=\"3\"\u003e\u003c\/rect\u003e\u003cpath d=\"M8 20h8M12 17v3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch4\u003eAuto-ID, 3rd-Gen BMS\u003c\/h4\u003e\n\u003cp\u003eThe battery automatically recognizes and syncs additional units during setup, with improved balancing precision and response time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg aria-hidden=\"true\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003crect transform=\"rotate(-18 7 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"2.5\"\u003e\u003c\/rect\u003e\u003crect transform=\"rotate(-18 17 12)\" rx=\"3\" height=\"6\" width=\"9\" y=\"9\" x=\"12.5\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\n\u003ch4\u003eParallels Up to 16 Units\u003c\/h4\u003e\n\u003cp\u003eScales from this single-inverter configuration up to large residential or commercial-style installations on the same platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" style=\"background: var(--ink-2); color: var(--accent); opacity: 0.7;\" class=\"esk-divider\"\u003e\u003csvg preserveaspectratio=\"none\" viewbox=\"0 0 600 20\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" d=\"M0,10 Q25,-4 50,10 T100,10 T150,10 T200,10 T250,10 T300,10 T350,10 T400,10 T450,10 T500,10 T550,10 T600,10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ NARRATIVE ============ --\u003e\n\u003csection class=\"esk-narrative\"\u003e\n\u003ch3\u003eOne Number Isn't the Whole Story\u003c\/h3\u003e\n\u003cp\u003eThis system's output rating isn't a single number — 16kW is what the FlexBOSS21 delivers with solar and grid both contributing, while the battery on its own is rated for 6kW continuous. That distinction matters for sizing: a system that looks oversized on paper at \"16kW\" is really built around a 6kW battery-only floor, with solar and grid making up the difference the rest of the time. Add in 21kW of possible solar input across three MPPT trackers, and there's real headroom for larger or more complex roof layouts.\u003c\/p\u003e\n\u003cp\u003eThe battery and inverter are sold as a matched pair specifically because BigBattery has built and validated this exact combination for UL 9540-eligible grid-tied installs, with closed-loop communication handling coordination between the two automatically. The inverter connects over WiFi (dongle included), cellular, or Ethernet, and integrates with EG4's GridBOSS hub for whole-system load management if the install calls for it. The battery stays indoors (IP20), while the inverter's NEMA 4X enclosure is rated for outdoor installation if that's where it needs to go.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBattery — EG4 314Ah Indoor (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCapacity\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal energy capacity\u003c\/td\u003e\n\u003ctd\u003e16 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsable energy (80% DoD)\u003c\/td\u003e\n\u003ctd\u003e12.86 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated capacity\u003c\/td\u003e\n\u003ctd\u003e314 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eCharging \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous charge current\u003c\/td\u003e\n\u003ctd\u003e157 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous charge\/discharge power\u003c\/td\u003e\n\u003ctd\u003e8 kW \/ 10.2 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak power\u003c\/td\u003e\n\u003ctd\u003e12.8 kW (3 sec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging temp range\u003c\/td\u003e\n\u003ctd\u003e32–122°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarging temp range\u003c\/td\u003e\n\u003ctd\u003e-4–131°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure rating\u003c\/td\u003e\n\u003ctd\u003eIP20 (indoor only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e293.2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H×W×D)\u003c\/td\u003e\n\u003ctd\u003e34.1 × 18.1 × 9.6 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e10,000 @ 0.5C, 80% DoD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years or 10,000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eInverter — EG4 FlexBOSS21 (×1)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eOutput\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous output (PV + grid)\u003c\/td\u003e\n\u003ctd\u003e66.7A \/ 16 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous output (battery only)\u003c\/td\u003e\n\u003ctd\u003e50A \/ 6 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak power (0.5s \/ 1s)\u003c\/td\u003e\n\u003ctd\u003e24,000W \/ 18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocked rotor amps\u003c\/td\u003e\n\u003ctd\u003e195 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e20ms default \/ 10ms configurable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eSolar Input\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT channels\u003c\/td\u003e\n\u003ctd\u003e3 (5 strings total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated current per MPPT\u003c\/td\u003e\n\u003ctd\u003e26A \/ 26A \/ 15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRec. max solar array (STC)\u003c\/td\u003e\n\u003ctd\u003e21 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT DC voltage range\u003c\/td\u003e\n\u003ctd\u003e120–440 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency (PV to grid)\u003c\/td\u003e\n\u003ctd\u003e97%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eBattery \u0026amp; Grid\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage range\u003c\/td\u003e\n\u003ctd\u003e40–60 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge\/discharge current\u003c\/td\u003e\n\u003ctd\u003e250 A DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax grid pass-through\u003c\/td\u003e\n\u003ctd\u003e90 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC input \/ output breaker\u003c\/td\u003e\n\u003ctd\u003e90A \/ 80A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;65 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePhysical, Connectivity \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H×W×D)\u003c\/td\u003e\n\u003ctd\u003e30.43 × 22.28 × 11.22 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure rating\u003c\/td\u003e\n\u003ctd\u003eNEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity\u003c\/td\u003e\n\u003ctd\u003eWiFi (included), cellular, Ethernet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel units\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 18px !important;\"\u003eInverter certifications: UL 1741, UL 1741 PCS CRD Test, UL 3141. FCC Part 15 Class B. Battery certifications: UL 1973, UN 38.3.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ SCALABILITY ============ --\u003e\n\u003csection class=\"esk-scale\"\u003e\n\u003ch3\u003eOther Configurations Available\u003c\/h3\u003e\n\u003cp\u003eThis same battery and inverter platform is sold in several sizes. The row below highlighted in your brand color is the configuration this page describes — everything else is shown for reference if a customer needs a different scale.\u003c\/p\u003e\n\u003ctable class=\"esk-scale-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTier\u003c\/th\u003e\n\u003cth\u003eInverters\u003c\/th\u003e\n\u003cth\u003eBatteries\u003c\/th\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003cth\u003eMax Output\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"current\"\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e16 kWh\u003c\/td\u003e\n\u003ctd\u003e16 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e32 kWh\u003c\/td\u003e\n\u003ctd\u003e16 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e48 kWh\u003c\/td\u003e\n\u003ctd\u003e16 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eLarge\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e4×\u003c\/td\u003e\n\u003ctd\u003e64 kWh\u003c\/td\u003e\n\u003ctd\u003e32 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003eLarge\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e6×\u003c\/td\u003e\n\u003ctd\u003e96 kWh\u003c\/td\u003e\n\u003ctd\u003e32 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tier\"\u003e3-Phase\u003c\/td\u003e\n\u003ctd\u003e3×\u003c\/td\u003e\n\u003ctd\u003e6×\u003c\/td\u003e\n\u003ctd\u003e96 kWh\u003c\/td\u003e\n\u003ctd\u003e48 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/EG4-314Ah-1024x420.webp?v=1785080293\" alt=\"EG4 solar kit — installation diagram\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat exactly is included in this system?\u003c\/summary\u003e\n\u003cp\u003eOne EG4 314Ah Indoor battery (16kWh) and one EG4 FlexBOSS21 hybrid inverter, sold as a pre-matched, UL 9540-eligible pair.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the output really 16kW, or is that only with solar?\u003c\/summary\u003e\n\u003cp\u003e16kW is what the system delivers with solar and grid both contributing. On battery power alone, with no solar or grid available, continuous output is 6kW. Worth sizing around the 6kW floor if backup power without sun or grid matters for your use case.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does \"UL 9540-eligible\" mean here?\u003c\/summary\u003e\n\u003cp\u003eIt means this specific battery-and-inverter pairing has been built and validated together for UL 9540 grid-tied energy storage system installs, rather than being a generic combination assembled after the fact.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan the whole system be installed outdoors?\u003c\/summary\u003e\n\u003cp\u003eNot the battery — it's IP20 and indoor-rated. The FlexBOSS21 inverter is NEMA 4X and can go outdoors if that placement makes more sense for the install.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I monitor the system remotely?\u003c\/summary\u003e\n\u003cp\u003eThe inverter includes a WiFi dongle by default and also supports cellular and Ethernet connectivity, with app and web-based monitoring.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the warranty?\u003c\/summary\u003e\n\u003cp\u003e10 years on both the battery (or 10,000 cycles) and the inverter, covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install it?\u003c\/summary\u003e\n\u003cp\u003eGiven the voltages, currents, and grid interconnection involved, installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code and utility requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\n\u003ch3\u003eDocuments \u0026amp; Downloads\u003c\/h3\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eBattery — EG4 314Ah Indoor\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2025\/10\/EG4-WallMount-314Ah-Indoor-Battery-Spec-Sheet.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2025\/04\/EG4-WallMount-Indoor-314Ah-Battery-User-Manual.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2025\/10\/EG4-WallMount-314Ah-Indoor-Battery-Quick-Start-Guide.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Quick Start Guide \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/01\/EG4-WallMount-314Ah-Indoor-Battery-1973-Certificate-of-Compliance.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Certificate of Compliance \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/01\/EG4-WallMount-314Ah-Indoor-Battery-UL-9540A-Test-Verification-of-Conformity.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Certificate of Conformity \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-dl-block\"\u003e\n\u003cp class=\"esk-dl-group-title\"\u003eInverter — EG4 FlexBOSS21\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2024\/10\/EG4-FlexBoss21-Spec-Sheet.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Spec Sheet \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2024\/08\/FlexBOSS-21-Manual.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e User Manual \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2024\/11\/EG4-FlexBoss21-COC.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL1741 Certificate \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2024\/11\/EG4-FlexBOSS21-UL-1741-PCS-CRD_Test-Verification-of-Conformity.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL1741 PCS CRD Verification \u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/eg4electronics.com\/wp-content\/uploads\/2025\/08\/EG4-FlexBOSS21-FlexBOSS18-UL-3141-CRD-PCS-Verification-of-Conformity.pdf\" class=\"esk-download\" target=\"_blank\"\u003e \u003csvg aria-hidden=\"true\" stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.7\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3v12M7 10l5 5 5-5M4 19h16\"\u003e\u003c\/path\u003e\u003c\/svg\u003e UL3141 Certificate \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp class=\"esk-warranty\"\u003eBattery and inverter both backed by \u003cstrong\u003e10-year manufacturer's warranties\u003c\/strong\u003e, covering defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"EG4","offers":[{"title":"1 inverter + 1 battery (16kW + 16kWh)","offer_id":42333854138423,"sku":"K0210","price":7092.0,"currency_code":"USD","in_stock":true},{"title":"1 inverter + 2 batteries (16kW + 32kWh)","offer_id":42333854171191,"sku":"K0211","price":10750.0,"currency_code":"USD","in_stock":true},{"title":"1 inverter + 3 batteries (16kW + 48kWh)","offer_id":42333854203959,"sku":"K0212","price":14408.0,"currency_code":"USD","in_stock":true},{"title":"2 inverters + 4 batteries (32kW + 64kWh)","offer_id":42333854236727,"sku":"K0213","price":21666.0,"currency_code":"USD","in_stock":true},{"title":"2 inverters + 6 batteries (32kW + 96kWh)","offer_id":42333854269495,"sku":"K0214","price":28982.0,"currency_code":"USD","in_stock":true},{"title":"3 inverters + 6 batteries (48kW + 96kWh)","offer_id":42333854302263,"sku":"K0215","price":32582.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/FLEXBOSS21-EG4-314Ah-2.webp?v=1785084900"},{"product_id":"bigbattery-ethos-48v-20-48kwh-battery-1x-eg4-18kpv-12kw-hybrid-inverter-ess-k0956","title":"BigBattery ETHOS 48V 20.48kWh LiFePO4 Battery + 1 x EG4 18kPV Hybrid Inverter ESS | 12kW Output, 18kW PV | UL9540 Whole-Home Backup | K0956","description":"\u003cdiv class=\"esk-jk-pd\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEnergy Storage System · 12kW · 20.48kWh · 18kW PV\u003c\/p\u003e\n\u003ch2\u003e20.48kWh of Stackable LiFePO4 Storage with 12kW of Hybrid Inverter Power\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA UL 9540 certified whole-home energy storage system: 4 stackable ETHOS 48V LiFePO4 modules (20.48kWh, 4 modules) matched with 1 EG4 18kPV hybrid inverter for 12kW of continuous 120\/240V split-phase output and up to 18kW of solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M700,11 L670,4 M660,11 L635,2 M625,11 L605,5 M590,11 L575,3 M560,11 L540,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\u003cpath d=\"M300,11 L180,11 M420,11 L520,11\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\" opacity=\"0.55\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous AC Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e20.48kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eLiFePO4 Storage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e18kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12 Years\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top: 32px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-kit-K0956.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS + EG4 18kPV energy storage system kit K0956 - 4 battery modules and 1 inverter(s)\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\n\u003ch2\u003eK0956 Overview\u003c\/h2\u003e\n\u003cp\u003eThe K0956 configuration of the BigBattery ETHOS + EG4 18kPV ESS combines 4 ETHOS 5.12kWh battery modules with 1 EG4 18kPV hybrid inverter. ETHOS modules stack on a rack base with a control box on top - no wall mounting, no rack cabinet - so 20.48kWh of storage installs in a footprint of 26.5 x 6.7 inches per stack. Every stack is IP65 \/ NEMA 4X rated and the batteries are UL1973, UL9540A and UN38.3 certified; together with the 18kPV the system is UL 9540 listed, which is what most utilities and inspectors now require for permitted home storage.\u003c\/p\u003e\n\u003cp\u003eEach EG4 18kPV supplies 12,000W of continuous 120\/240V split-phase power (15,500W surge with PV), accepts 18kW of solar on three MPPTs, and passes through 200A of grid power. It works on-grid with export or zero-export, off-grid, or as backup, and talks to the ETHOS control box in closed loop so charging current, state of charge and protection are coordinated automatically. A second and third inverter can be added later for 24kW or 36kW.\u003c\/p\u003e\n\u003cp\u003e20.48kWh is roughly 0.9 days of typical household consumption (22kWh\/day) without sun, and the ETHOS platform scales past 80kWh by adding modules to each control box (up to 16 per box). BigBattery ships from Texas with a 12-year battery warranty, a 10-year inverter warranty and lifetime US-based technical support. Solar panels and racking are not included - pair the system with any 100-600Vdc PV array up to 18kW.\u003c\/p\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/collections\/bigbattery-kits\" title=\"BigBattery Kits\"\u003eBigBattery backup systems\u003c\/a\u003e, \u003ca href=\"\/collections\/bigbattery-batteries\" title=\"BigBattery Batteries\"\u003eBigBattery lithium batteries\u003c\/a\u003e and \u003ca href=\"\/collections\/eg4-inverters\" title=\"EG4 Inverters\"\u003eEG4 inverters\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top: 32px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-kit.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS 48V 5.12kWh battery module - what is in the box\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003csection class=\"esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\n\u003ch2\u003eK0956 Key Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feat-grid\"\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e01\u003c\/span\u003e\n\u003ch3\u003eUL 9540 certified ESS\u003c\/h3\u003e\n\u003cp\u003eETHOS battery and EG4 18kPV are certified together as a complete energy storage system, with UL9540A fire-safety testing, UL1973 and UN38.3 on the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e02\u003c\/span\u003e\n\u003ch3\u003e20.48kWh stackable LiFePO4\u003c\/h3\u003e\n\u003cp\u003e4 modules of 5.12kWh \/ 100Ah each, 6,000+ cycles, 16S cells and a smart BMS in every module; expand to 80+ kWh by adding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e03\u003c\/span\u003e\n\u003ch3\u003e12kW hybrid power, 18kW solar\u003c\/h3\u003e\n\u003cp\u003eEG4 18kPV: 12kW per unit, three MPPTs, 100-600Vdc input, 200A pass-through, generator input, RSD support and Wi-Fi monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e04\u003c\/span\u003e\n\u003ch3\u003eClosed-loop communication\u003c\/h3\u003e\n\u003cp\u003eCANBus link between control box and inverter for coordinated charging, accurate state of charge and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e05\u003c\/span\u003e\n\u003ch3\u003eIP65 \/ NEMA 4X\u003c\/h3\u003e\n\u003cp\u003eBattery stacks and inverter are weather rated for garages, covered patios and utility areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e06\u003c\/span\u003e\n\u003ch3\u003eFast, maintenance-free installation\u003c\/h3\u003e\n\u003cp\u003eStack, connect the included cables, and go - no routine servicing, 12-year battery and 10-year inverter warranties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top: 32px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-install.jpg?v=1789927251\u0026amp;width=1400\" alt=\"Customer installation - EG4 hybrid inverter with stacked BigBattery ETHOS modules in a utility room\" width=\"1400\" height=\"1867\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003csection class=\"esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\n\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e4×\u003c\/span\u003e\u003cspan\u003eBigBattery ETHOS 48V 5.12kWh stackable LiFePO4 battery module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS control box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS rack base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack power cable pair (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack comm cable (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eEG4 18kPV all-in-one hybrid solar inverter (18kW PV \/ 12kW AC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS battery top plate cover\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top: 32px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-inv-open.webp?v=1789927250\u0026amp;width=1400\" alt=\"EG4 18kPV hybrid inverter with wiring compartment open\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003csection class=\"esk-runtime alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eRuntime\u003c\/span\u003e\n\u003ch2\u003eWhat 20.48kWh of storage can run\u003c\/h2\u003e\n\u003cp class=\"esk-note\"\u003eEstimates assume 85% usable energy and typical load ratings; actual runtime depends on your appliances, weather and settings.\u003c\/p\u003e\n\u003cdiv class=\"esk-run-grid\"\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~0.9 days\u003c\/span\u003e\u003cspan class=\"dev\"\u003eTypical home (22kWh\/day), no sun\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~7 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eCentral AC 3-ton (3kW) continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~20 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eRefrigerator + freezer (1kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e12kW\u003c\/span\u003e\u003cspan class=\"dev\"\u003eContinuous output, whole-house loads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"esk-faqs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\n\u003ch2\u003eK0956 Common Questions\u003c\/h2\u003e\n\u003cdiv class=\"esk-faq-grid\"\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ1\u003c\/span\u003e\n\u003ch3\u003eHow long will 20.48kWh power my home?\u003c\/h3\u003e\n\u003cp\u003eAbout 0.9 days for a typical 22kWh\/day home with no solar input; with solar panels connected to the 18kPV (up to 18kW) the batteries recharge daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ2\u003c\/span\u003e\n\u003ch3\u003eDoes the kit include solar panels?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a battery + inverter ESS. Connect any PV array within the inverter limits (100-600Vdc, 18kW per inverter), or run it as grid-charged backup without solar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ3\u003c\/span\u003e\n\u003ch3\u003eIs it grid-tied or off-grid?\u003c\/h3\u003e\n\u003cp\u003eBoth. The EG4 18kPV is UL1741 certified for grid interaction (export or zero-export) and also runs fully off-grid; it has a generator input as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ4\u003c\/span\u003e\n\u003ch3\u003eCan I add more batteries later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each ETHOS control box supports up to 16 modules, and BigBattery sells single ETHOS modules, so the system can grow past 80kWh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ5\u003c\/span\u003e\n\u003ch3\u003eDoes it ship free?\u003c\/h3\u003e\n\u003cp\u003eYes - free freight shipping within the contiguous USA, $0 sales tax in most states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\n\u003ch2\u003eK0956 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBigBattery ETHOS 48V 5.12kWh Stackable Battery Module (per module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\n\u003ctd colspan=\"2\"\u003eBattery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V (51.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12kWh \/ 100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48-50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42-47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A per module (200A per control box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\n\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature\u003c\/td\u003e\n\u003ctd\u003e32-113°F (0-45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4-140°F (-20-60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temperature\u003c\/td\u003e\n\u003ctd\u003e59-95°F (15-35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4-113°F, max 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule footprint\u003c\/td\u003e\n\u003ctd\u003e26.5 in W x 6.7 in D (674 x 170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 modules per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485 (closed-loop with EG4 18kPV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\n\u003ctd colspan=\"2\"\u003eAC Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous line wattage\u003c\/td\u003e\n\u003ctd\u003e8,000W per 120V leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge with PV\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge without PV\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10-20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e10 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\n\u003ctd colspan=\"2\"\u003eAC Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid input\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac, 50\/60Hz, 180-270Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A (grid) \/ 90A (generator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\n\u003ctd colspan=\"2\"\u003ePV Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (2 inputs on MPPT 1, 1 each on MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax input current\u003c\/td\u003e\n\u003ctd\u003e25A (MPPT 1) \/ 15A (MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100-600Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e100Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating range\u003c\/td\u003e\n\u003ctd\u003e140-500Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94-99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\n\u003ctd colspan=\"2\"\u003eBattery and General\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48Vdc nominal, 40-60Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge \/ discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e~70W normal \/ ~18W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-13 to 140°F (-25 to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e68dB at 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.5 x 11.2 x 34.3 in (520 x 285 x 871 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"esk-downloads alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\n\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ETHOS-SpecSheet-1.4-BatteryCB.pdf?v=1789927251\" rel=\"noopener\" target=\"_blank\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Battery Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf?v=1789927252\" rel=\"noopener\" target=\"_blank\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS + EG4 ESS User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL9540A-Certificate-1.pdf?v=1789927251\" rel=\"noopener\" target=\"_blank\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540A Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL1973-ETHOS.pdf?v=1789927251\" rel=\"noopener\" target=\"_blank\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL1973 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-48V-ETHOS-DOC-UN38.3.pdf?v=1789927252\" rel=\"noopener\" target=\"_blank\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UN38.3 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-SDS_BigBattery_LFP-1.pdf?v=1789927252\" rel=\"noopener\" target=\"_blank\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e BigBattery LFP Safety Data Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Spec-Sheet.pdf?v=1789927253\" rel=\"noopener\" target=\"_blank\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Manual-1.pdf?v=1789927252\" rel=\"noopener\" target=\"_blank\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Certification.pdf?v=1789927252\" rel=\"noopener\" target=\"_blank\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV UL1741 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1789927252\" rel=\"noopener\" target=\"_blank\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Rapid Shutdown Wiring Guide (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-footer\"\u003e\n\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":50214628032567,"sku":"K0956","price":8683.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/20-kWh-x4-Batteries-KIT0956-V2.webp?v=1789927930"},{"product_id":"bigbattery-ethos-48v-30-72kwh-battery-1x-eg4-18kpv-12kw-hybrid-inverter-ess-k0957","title":"BigBattery ETHOS 48V 30.72kWh LiFePO4 Battery + 1 x EG4 18kPV Hybrid Inverter ESS | 12kW Output, 18kW PV | UL9540 Whole-Home Backup | K0957","description":"\u003cdiv class=\"esk-jk-pd\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEnergy Storage System · 12kW · 30.72kWh · 18kW PV\u003c\/p\u003e\n\u003ch2\u003e30.72kWh of Stackable LiFePO4 Storage with 12kW of Hybrid Inverter Power\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA UL 9540 certified whole-home energy storage system: 6 stackable ETHOS 48V LiFePO4 modules (30.72kWh, 6 modules) matched with 1 EG4 18kPV hybrid inverter for 12kW of continuous 120\/240V split-phase output and up to 18kW of solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M700,11 L670,4 M660,11 L635,2 M625,11 L605,5 M590,11 L575,3 M560,11 L540,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\u003cpath d=\"M300,11 L180,11 M420,11 L520,11\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\" opacity=\"0.55\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous AC Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e30.72kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eLiFePO4 Storage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e18kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12 Years\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-kit-K0957.webp?v=1789927252\u0026amp;width=1400\" alt=\"BigBattery ETHOS + EG4 18kPV energy storage system kit K0957 - 6 battery modules and 1 inverter(s)\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2\u003eK0957 Overview\u003c\/h2\u003e\n\u003cp\u003eThe K0957 configuration of the BigBattery ETHOS + EG4 18kPV ESS combines 6 ETHOS 5.12kWh battery modules with 1 EG4 18kPV hybrid inverter. ETHOS modules stack on a rack base with a control box on top - no wall mounting, no rack cabinet - so 30.72kWh of storage installs in a footprint of 26.5 x 6.7 inches per stack. Every stack is IP65 \/ NEMA 4X rated and the batteries are UL1973, UL9540A and UN38.3 certified; together with the 18kPV the system is UL 9540 listed, which is what most utilities and inspectors now require for permitted home storage.\u003c\/p\u003e\n\u003cp\u003eEach EG4 18kPV supplies 12,000W of continuous 120\/240V split-phase power (15,500W surge with PV), accepts 18kW of solar on three MPPTs, and passes through 200A of grid power. It works on-grid with export or zero-export, off-grid, or as backup, and talks to the ETHOS control box in closed loop so charging current, state of charge and protection are coordinated automatically. A second and third inverter can be added later for 24kW or 36kW.\u003c\/p\u003e\n\u003cp\u003e30.72kWh is roughly 1.4 days of typical household consumption (22kWh\/day) without sun, and the ETHOS platform scales past 80kWh by adding modules to each control box (up to 16 per box). BigBattery ships from Texas with a 12-year battery warranty, a 10-year inverter warranty and lifetime US-based technical support. Solar panels and racking are not included - pair the system with any 100-600Vdc PV array up to 18kW.\u003c\/p\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/collections\/bigbattery-kits\" title=\"BigBattery Kits\"\u003eBigBattery backup systems\u003c\/a\u003e, \u003ca href=\"\/collections\/bigbattery-batteries\" title=\"BigBattery Batteries\"\u003eBigBattery lithium batteries\u003c\/a\u003e and \u003ca href=\"\/collections\/eg4-inverters\" title=\"EG4 Inverters\"\u003eEG4 inverters\u003c\/a\u003e.\u003c\/p\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-kit.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS 48V 5.12kWh battery module - what is in the box\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\u003ch2\u003eK0957 Key Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feat-grid\"\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e01\u003c\/span\u003e\u003ch3\u003eUL 9540 certified ESS\u003c\/h3\u003e\n\u003cp\u003eETHOS battery and EG4 18kPV are certified together as a complete energy storage system, with UL9540A fire-safety testing, UL1973 and UN38.3 on the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e02\u003c\/span\u003e\u003ch3\u003e30.72kWh stackable LiFePO4\u003c\/h3\u003e\n\u003cp\u003e6 modules of 5.12kWh \/ 100Ah each, 6,000+ cycles, 16S cells and a smart BMS in every module; expand to 80+ kWh by adding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e03\u003c\/span\u003e\u003ch3\u003e12kW hybrid power, 18kW solar\u003c\/h3\u003e\n\u003cp\u003eEG4 18kPV: 12kW per unit, three MPPTs, 100-600Vdc input, 200A pass-through, generator input, RSD support and Wi-Fi monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e04\u003c\/span\u003e\u003ch3\u003eClosed-loop communication\u003c\/h3\u003e\n\u003cp\u003eCANBus link between control box and inverter for coordinated charging, accurate state of charge and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e05\u003c\/span\u003e\u003ch3\u003eIP65 \/ NEMA 4X\u003c\/h3\u003e\n\u003cp\u003eBattery stacks and inverter are weather rated for garages, covered patios and utility areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e06\u003c\/span\u003e\u003ch3\u003eFast, maintenance-free installation\u003c\/h3\u003e\n\u003cp\u003eStack, connect the included cables, and go - no routine servicing, 12-year battery and 10-year inverter warranties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-install.jpg?v=1789927251\u0026amp;width=1400\" alt=\"Customer installation - EG4 hybrid inverter with stacked BigBattery ETHOS modules in a utility room\" width=\"1400\" height=\"1867\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e6×\u003c\/span\u003e\u003cspan\u003eBigBattery ETHOS 48V 5.12kWh stackable LiFePO4 battery module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS battery top plate cover\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS control box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS rack base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eEG4 18kPV all-in-one hybrid solar inverter (18kW PV \/ 12kW AC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack power cable pair (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack comm cable (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-inv-open.webp?v=1789927250\u0026amp;width=1400\" alt=\"EG4 18kPV hybrid inverter with wiring compartment open\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-runtime alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eRuntime\u003c\/span\u003e\u003ch2\u003eWhat 30.72kWh of storage can run\u003c\/h2\u003e\n\u003cp class=\"esk-note\"\u003eEstimates assume 85% usable energy and typical load ratings; actual runtime depends on your appliances, weather and settings.\u003c\/p\u003e\n\u003cdiv class=\"esk-run-grid\"\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~1.4 days\u003c\/span\u003e\u003cspan class=\"dev\"\u003eTypical home (22kWh\/day), no sun\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~10 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eCentral AC 3-ton (3kW) continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~31 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eRefrigerator + freezer (1kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e12kW\u003c\/span\u003e\u003cspan class=\"dev\"\u003eContinuous output, whole-house loads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-faqs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\u003ch2\u003eK0957 Common Questions\u003c\/h2\u003e\n\u003cdiv class=\"esk-faq-grid\"\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ1\u003c\/span\u003e\u003ch3\u003eHow long will 30.72kWh power my home?\u003c\/h3\u003e\n\u003cp\u003eAbout 1.4 days for a typical 22kWh\/day home with no solar input; with solar panels connected to the 18kPV (up to 18kW) the batteries recharge daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ2\u003c\/span\u003e\u003ch3\u003eDoes the kit include solar panels?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a battery + inverter ESS. Connect any PV array within the inverter limits (100-600Vdc, 18kW per inverter), or run it as grid-charged backup without solar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ3\u003c\/span\u003e\u003ch3\u003eIs it grid-tied or off-grid?\u003c\/h3\u003e\n\u003cp\u003eBoth. The EG4 18kPV is UL1741 certified for grid interaction (export or zero-export) and also runs fully off-grid; it has a generator input as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ4\u003c\/span\u003e\u003ch3\u003eCan I add more batteries later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each ETHOS control box supports up to 16 modules, and BigBattery sells single ETHOS modules, so the system can grow past 80kWh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ5\u003c\/span\u003e\u003ch3\u003eDoes it ship free?\u003c\/h3\u003e\n\u003cp\u003eYes - free freight shipping within the contiguous USA, $0 sales tax in most states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2\u003eK0957 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBigBattery ETHOS 48V 5.12kWh Stackable Battery Module (per module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V (51.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12kWh \/ 100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48-50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42-47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A per module (200A per control box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature\u003c\/td\u003e\n\u003ctd\u003e32-113°F (0-45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4-140°F (-20-60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temperature\u003c\/td\u003e\n\u003ctd\u003e59-95°F (15-35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4-113°F, max 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule footprint\u003c\/td\u003e\n\u003ctd\u003e26.5 in W x 6.7 in D (674 x 170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 modules per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485 (closed-loop with EG4 18kPV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous line wattage\u003c\/td\u003e\n\u003ctd\u003e8,000W per 120V leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge with PV\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge without PV\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10-20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e10 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid input\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac, 50\/60Hz, 180-270Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A (grid) \/ 90A (generator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003ePV Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (2 inputs on MPPT 1, 1 each on MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax input current\u003c\/td\u003e\n\u003ctd\u003e25A (MPPT 1) \/ 15A (MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100-600Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e100Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating range\u003c\/td\u003e\n\u003ctd\u003e140-500Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94-99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery and General\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48Vdc nominal, 40-60Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge \/ discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e~70W normal \/ ~18W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-13 to 140°F (-25 to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e68dB at 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.5 x 11.2 x 34.3 in (520 x 285 x 871 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-downloads alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ETHOS-SpecSheet-1.4-BatteryCB.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Battery Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS + EG4 ESS User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL9540A-Certificate-1.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540A Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL1973-ETHOS.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL1973 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-48V-ETHOS-DOC-UN38.3.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UN38.3 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-SDS_BigBattery_LFP-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e BigBattery LFP Safety Data Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Spec-Sheet.pdf?v=1789927253\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Manual-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Certification.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV UL1741 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Rapid Shutdown Wiring Guide (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":50214628065335,"sku":"K0957","price":10808.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/30-kWh-x6-Batteries-KIT0957-V2.webp?v=1789927936"},{"product_id":"bigbattery-ethos-48v-40-96kwh-battery-1x-eg4-18kpv-12kw-hybrid-inverter-ess-k0753","title":"BigBattery ETHOS 48V 40.96kWh LiFePO4 Battery + 1 x EG4 18kPV Hybrid Inverter ESS | 12kW Output, 18kW PV | UL9540 Whole-Home Backup | K0753","description":"\u003cdiv class=\"esk-jk-pd\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEnergy Storage System · 12kW · 40.96kWh · 18kW PV\u003c\/p\u003e\n\u003ch2\u003e40.96kWh of Stackable LiFePO4 Storage with 12kW of Hybrid Inverter Power\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA UL 9540 certified whole-home energy storage system: 8 stackable ETHOS 48V LiFePO4 modules (40.96kWh, 8 modules) matched with 1 EG4 18kPV hybrid inverter for 12kW of continuous 120\/240V split-phase output and up to 18kW of solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M700,11 L670,4 M660,11 L635,2 M625,11 L605,5 M590,11 L575,3 M560,11 L540,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\u003cpath d=\"M300,11 L180,11 M420,11 L520,11\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\" opacity=\"0.55\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous AC Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e40.96kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eLiFePO4 Storage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e18kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12 Years\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-kit-K0753.webp?v=1789927252\u0026amp;width=1400\" alt=\"BigBattery ETHOS + EG4 18kPV energy storage system kit K0753 - 8 battery modules and 1 inverter(s)\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2\u003eK0753 Overview\u003c\/h2\u003e\n\u003cp\u003eThe K0753 configuration of the BigBattery ETHOS + EG4 18kPV ESS combines 8 ETHOS 5.12kWh battery modules with 1 EG4 18kPV hybrid inverter. ETHOS modules stack on a rack base with a control box on top - no wall mounting, no rack cabinet - so 40.96kWh of storage installs in a footprint of 26.5 x 6.7 inches per stack. Every stack is IP65 \/ NEMA 4X rated and the batteries are UL1973, UL9540A and UN38.3 certified; together with the 18kPV the system is UL 9540 listed, which is what most utilities and inspectors now require for permitted home storage.\u003c\/p\u003e\n\u003cp\u003eEach EG4 18kPV supplies 12,000W of continuous 120\/240V split-phase power (15,500W surge with PV), accepts 18kW of solar on three MPPTs, and passes through 200A of grid power. It works on-grid with export or zero-export, off-grid, or as backup, and talks to the ETHOS control box in closed loop so charging current, state of charge and protection are coordinated automatically. A second and third inverter can be added later for 24kW or 36kW.\u003c\/p\u003e\n\u003cp\u003e40.96kWh is roughly 1.9 days of typical household consumption (22kWh\/day) without sun, and the ETHOS platform scales past 80kWh by adding modules to each control box (up to 16 per box). BigBattery ships from Texas with a 12-year battery warranty, a 10-year inverter warranty and lifetime US-based technical support. Solar panels and racking are not included - pair the system with any 100-600Vdc PV array up to 18kW.\u003c\/p\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/collections\/bigbattery-kits\" title=\"BigBattery Kits\"\u003eBigBattery backup systems\u003c\/a\u003e, \u003ca href=\"\/collections\/bigbattery-batteries\" title=\"BigBattery Batteries\"\u003eBigBattery lithium batteries\u003c\/a\u003e and \u003ca href=\"\/collections\/eg4-inverters\" title=\"EG4 Inverters\"\u003eEG4 inverters\u003c\/a\u003e.\u003c\/p\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-kit.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS 48V 5.12kWh battery module - what is in the box\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\u003ch2\u003eK0753 Key Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feat-grid\"\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e01\u003c\/span\u003e\u003ch3\u003eUL 9540 certified ESS\u003c\/h3\u003e\n\u003cp\u003eETHOS battery and EG4 18kPV are certified together as a complete energy storage system, with UL9540A fire-safety testing, UL1973 and UN38.3 on the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e02\u003c\/span\u003e\u003ch3\u003e40.96kWh stackable LiFePO4\u003c\/h3\u003e\n\u003cp\u003e8 modules of 5.12kWh \/ 100Ah each, 6,000+ cycles, 16S cells and a smart BMS in every module; expand to 80+ kWh by adding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e03\u003c\/span\u003e\u003ch3\u003e12kW hybrid power, 18kW solar\u003c\/h3\u003e\n\u003cp\u003eEG4 18kPV: 12kW per unit, three MPPTs, 100-600Vdc input, 200A pass-through, generator input, RSD support and Wi-Fi monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e04\u003c\/span\u003e\u003ch3\u003eClosed-loop communication\u003c\/h3\u003e\n\u003cp\u003eCANBus link between control box and inverter for coordinated charging, accurate state of charge and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e05\u003c\/span\u003e\u003ch3\u003eIP65 \/ NEMA 4X\u003c\/h3\u003e\n\u003cp\u003eBattery stacks and inverter are weather rated for garages, covered patios and utility areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e06\u003c\/span\u003e\u003ch3\u003eFast, maintenance-free installation\u003c\/h3\u003e\n\u003cp\u003eStack, connect the included cables, and go - no routine servicing, 12-year battery and 10-year inverter warranties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-install.jpg?v=1789927251\u0026amp;width=1400\" alt=\"Customer installation - EG4 hybrid inverter with stacked BigBattery ETHOS modules in a utility room\" width=\"1400\" height=\"1867\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e8×\u003c\/span\u003e\u003cspan\u003eBigBattery ETHOS 48V 5.12kWh stackable LiFePO4 battery module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS control box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS rack base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eEG4 18kPV all-in-one hybrid solar inverter (18kW PV \/ 12kW AC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e10kWh ETHOS controller-to-battery cable\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack comm cable (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e4×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack power cable pair (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS battery top plate cover\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-inv-open.webp?v=1789927250\u0026amp;width=1400\" alt=\"EG4 18kPV hybrid inverter with wiring compartment open\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-runtime alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eRuntime\u003c\/span\u003e\u003ch2\u003eWhat 40.96kWh of storage can run\u003c\/h2\u003e\n\u003cp class=\"esk-note\"\u003eEstimates assume 85% usable energy and typical load ratings; actual runtime depends on your appliances, weather and settings.\u003c\/p\u003e\n\u003cdiv class=\"esk-run-grid\"\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~1.9 days\u003c\/span\u003e\u003cspan class=\"dev\"\u003eTypical home (22kWh\/day), no sun\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~14 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eCentral AC 3-ton (3kW) continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~41 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eRefrigerator + freezer (1kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e12kW\u003c\/span\u003e\u003cspan class=\"dev\"\u003eContinuous output, whole-house loads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-faqs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\u003ch2\u003eK0753 Common Questions\u003c\/h2\u003e\n\u003cdiv class=\"esk-faq-grid\"\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ1\u003c\/span\u003e\u003ch3\u003eHow long will 40.96kWh power my home?\u003c\/h3\u003e\n\u003cp\u003eAbout 1.9 days for a typical 22kWh\/day home with no solar input; with solar panels connected to the 18kPV (up to 18kW) the batteries recharge daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ2\u003c\/span\u003e\u003ch3\u003eDoes the kit include solar panels?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a battery + inverter ESS. Connect any PV array within the inverter limits (100-600Vdc, 18kW per inverter), or run it as grid-charged backup without solar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ3\u003c\/span\u003e\u003ch3\u003eIs it grid-tied or off-grid?\u003c\/h3\u003e\n\u003cp\u003eBoth. The EG4 18kPV is UL1741 certified for grid interaction (export or zero-export) and also runs fully off-grid; it has a generator input as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ4\u003c\/span\u003e\u003ch3\u003eCan I add more batteries later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each ETHOS control box supports up to 16 modules, and BigBattery sells single ETHOS modules, so the system can grow past 80kWh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ5\u003c\/span\u003e\u003ch3\u003eDoes it ship free?\u003c\/h3\u003e\n\u003cp\u003eYes - free freight shipping within the contiguous USA, $0 sales tax in most states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2\u003eK0753 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBigBattery ETHOS 48V 5.12kWh Stackable Battery Module (per module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V (51.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12kWh \/ 100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48-50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42-47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A per module (200A per control box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature\u003c\/td\u003e\n\u003ctd\u003e32-113°F (0-45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4-140°F (-20-60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temperature\u003c\/td\u003e\n\u003ctd\u003e59-95°F (15-35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4-113°F, max 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule footprint\u003c\/td\u003e\n\u003ctd\u003e26.5 in W x 6.7 in D (674 x 170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 modules per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485 (closed-loop with EG4 18kPV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous line wattage\u003c\/td\u003e\n\u003ctd\u003e8,000W per 120V leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge with PV\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge without PV\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10-20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e10 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid input\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac, 50\/60Hz, 180-270Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A (grid) \/ 90A (generator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003ePV Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (2 inputs on MPPT 1, 1 each on MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax input current\u003c\/td\u003e\n\u003ctd\u003e25A (MPPT 1) \/ 15A (MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100-600Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e100Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating range\u003c\/td\u003e\n\u003ctd\u003e140-500Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94-99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery and General\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48Vdc nominal, 40-60Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge \/ discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e~70W normal \/ ~18W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-13 to 140°F (-25 to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e68dB at 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.5 x 11.2 x 34.3 in (520 x 285 x 871 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-downloads alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ETHOS-SpecSheet-1.4-BatteryCB.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Battery Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS + EG4 ESS User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL9540A-Certificate-1.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540A Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL1973-ETHOS.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL1973 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-48V-ETHOS-DOC-UN38.3.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UN38.3 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-SDS_BigBattery_LFP-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e BigBattery LFP Safety Data Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Spec-Sheet.pdf?v=1789927253\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Manual-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Certification.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV UL1741 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Rapid Shutdown Wiring Guide (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":50214628098103,"sku":"K0753","price":13087.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/41-kWh-x8-Batteries-KIT0753-V3.webp?v=1789927941"},{"product_id":"bigbattery-ethos-48v-46-08kwh-battery-1x-eg4-18kpv-12kw-hybrid-inverter-ess-k0754","title":"BigBattery ETHOS 48V 46.08kWh LiFePO4 Battery + 1 x EG4 18kPV Hybrid Inverter ESS | 12kW Output, 18kW PV | UL9540 Whole-Home Backup | K0754","description":"\u003cdiv class=\"esk-jk-pd\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEnergy Storage System · 12kW · 46.08kWh · 18kW PV\u003c\/p\u003e\n\u003ch2\u003e46.08kWh of Stackable LiFePO4 Storage with 12kW of Hybrid Inverter Power\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA UL 9540 certified whole-home energy storage system: 9 stackable ETHOS 48V LiFePO4 modules (46.08kWh, 9 modules) matched with 1 EG4 18kPV hybrid inverter for 12kW of continuous 120\/240V split-phase output and up to 18kW of solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M700,11 L670,4 M660,11 L635,2 M625,11 L605,5 M590,11 L575,3 M560,11 L540,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\u003cpath d=\"M300,11 L180,11 M420,11 L520,11\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\" opacity=\"0.55\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous AC Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e46.08kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eLiFePO4 Storage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e18kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12 Years\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-kit-K0754.webp?v=1789927252\u0026amp;width=1400\" alt=\"BigBattery ETHOS + EG4 18kPV energy storage system kit K0754 - 9 battery modules and 1 inverter(s)\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2\u003eK0754 Overview\u003c\/h2\u003e\n\u003cp\u003eThe K0754 configuration of the BigBattery ETHOS + EG4 18kPV ESS combines 9 ETHOS 5.12kWh battery modules with 1 EG4 18kPV hybrid inverter. ETHOS modules stack on a rack base with a control box on top - no wall mounting, no rack cabinet - so 46.08kWh of storage installs in a footprint of 26.5 x 6.7 inches per stack. Every stack is IP65 \/ NEMA 4X rated and the batteries are UL1973, UL9540A and UN38.3 certified; together with the 18kPV the system is UL 9540 listed, which is what most utilities and inspectors now require for permitted home storage.\u003c\/p\u003e\n\u003cp\u003eEach EG4 18kPV supplies 12,000W of continuous 120\/240V split-phase power (15,500W surge with PV), accepts 18kW of solar on three MPPTs, and passes through 200A of grid power. It works on-grid with export or zero-export, off-grid, or as backup, and talks to the ETHOS control box in closed loop so charging current, state of charge and protection are coordinated automatically. A second and third inverter can be added later for 24kW or 36kW.\u003c\/p\u003e\n\u003cp\u003e46.08kWh is roughly 2.1 days of typical household consumption (22kWh\/day) without sun, and the ETHOS platform scales past 80kWh by adding modules to each control box (up to 16 per box). BigBattery ships from Texas with a 12-year battery warranty, a 10-year inverter warranty and lifetime US-based technical support. Solar panels and racking are not included - pair the system with any 100-600Vdc PV array up to 18kW.\u003c\/p\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/collections\/bigbattery-kits\" title=\"BigBattery Kits\"\u003eBigBattery backup systems\u003c\/a\u003e, \u003ca href=\"\/collections\/bigbattery-batteries\" title=\"BigBattery Batteries\"\u003eBigBattery lithium batteries\u003c\/a\u003e and \u003ca href=\"\/collections\/eg4-inverters\" title=\"EG4 Inverters\"\u003eEG4 inverters\u003c\/a\u003e.\u003c\/p\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-kit.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS 48V 5.12kWh battery module - what is in the box\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\u003ch2\u003eK0754 Key Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feat-grid\"\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e01\u003c\/span\u003e\u003ch3\u003eUL 9540 certified ESS\u003c\/h3\u003e\n\u003cp\u003eETHOS battery and EG4 18kPV are certified together as a complete energy storage system, with UL9540A fire-safety testing, UL1973 and UN38.3 on the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e02\u003c\/span\u003e\u003ch3\u003e46.08kWh stackable LiFePO4\u003c\/h3\u003e\n\u003cp\u003e9 modules of 5.12kWh \/ 100Ah each, 6,000+ cycles, 16S cells and a smart BMS in every module; expand to 80+ kWh by adding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e03\u003c\/span\u003e\u003ch3\u003e12kW hybrid power, 18kW solar\u003c\/h3\u003e\n\u003cp\u003eEG4 18kPV: 12kW per unit, three MPPTs, 100-600Vdc input, 200A pass-through, generator input, RSD support and Wi-Fi monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e04\u003c\/span\u003e\u003ch3\u003eClosed-loop communication\u003c\/h3\u003e\n\u003cp\u003eCANBus link between control box and inverter for coordinated charging, accurate state of charge and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e05\u003c\/span\u003e\u003ch3\u003eIP65 \/ NEMA 4X\u003c\/h3\u003e\n\u003cp\u003eBattery stacks and inverter are weather rated for garages, covered patios and utility areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e06\u003c\/span\u003e\u003ch3\u003eFast, maintenance-free installation\u003c\/h3\u003e\n\u003cp\u003eStack, connect the included cables, and go - no routine servicing, 12-year battery and 10-year inverter warranties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-install.jpg?v=1789927251\u0026amp;width=1400\" alt=\"Customer installation - EG4 hybrid inverter with stacked BigBattery ETHOS modules in a utility room\" width=\"1400\" height=\"1867\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e9×\u003c\/span\u003e\u003cspan\u003eBigBattery ETHOS 48V 5.12kWh stackable LiFePO4 battery module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eETHOS control box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS rack base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eEG4 18kPV all-in-one hybrid solar inverter (18kW PV \/ 12kW AC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e4×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack power cable pair (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack comm cable (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003e15kWh ETHOS controller-to-battery cable\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS battery top plate cover\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-inv-open.webp?v=1789927250\u0026amp;width=1400\" alt=\"EG4 18kPV hybrid inverter with wiring compartment open\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-runtime alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eRuntime\u003c\/span\u003e\u003ch2\u003eWhat 46.08kWh of storage can run\u003c\/h2\u003e\n\u003cp class=\"esk-note\"\u003eEstimates assume 85% usable energy and typical load ratings; actual runtime depends on your appliances, weather and settings.\u003c\/p\u003e\n\u003cdiv class=\"esk-run-grid\"\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~2.1 days\u003c\/span\u003e\u003cspan class=\"dev\"\u003eTypical home (22kWh\/day), no sun\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~15 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eCentral AC 3-ton (3kW) continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~46 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eRefrigerator + freezer (1kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e12kW\u003c\/span\u003e\u003cspan class=\"dev\"\u003eContinuous output, whole-house loads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-faqs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\u003ch2\u003eK0754 Common Questions\u003c\/h2\u003e\n\u003cdiv class=\"esk-faq-grid\"\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ1\u003c\/span\u003e\u003ch3\u003eHow long will 46.08kWh power my home?\u003c\/h3\u003e\n\u003cp\u003eAbout 2.1 days for a typical 22kWh\/day home with no solar input; with solar panels connected to the 18kPV (up to 18kW) the batteries recharge daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ2\u003c\/span\u003e\u003ch3\u003eDoes the kit include solar panels?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a battery + inverter ESS. Connect any PV array within the inverter limits (100-600Vdc, 18kW per inverter), or run it as grid-charged backup without solar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ3\u003c\/span\u003e\u003ch3\u003eIs it grid-tied or off-grid?\u003c\/h3\u003e\n\u003cp\u003eBoth. The EG4 18kPV is UL1741 certified for grid interaction (export or zero-export) and also runs fully off-grid; it has a generator input as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ4\u003c\/span\u003e\u003ch3\u003eCan I add more batteries later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each ETHOS control box supports up to 16 modules, and BigBattery sells single ETHOS modules, so the system can grow past 80kWh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ5\u003c\/span\u003e\u003ch3\u003eDoes it ship free?\u003c\/h3\u003e\n\u003cp\u003eYes - free freight shipping within the contiguous USA, $0 sales tax in most states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2\u003eK0754 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBigBattery ETHOS 48V 5.12kWh Stackable Battery Module (per module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V (51.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12kWh \/ 100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48-50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42-47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A per module (200A per control box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature\u003c\/td\u003e\n\u003ctd\u003e32-113°F (0-45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4-140°F (-20-60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temperature\u003c\/td\u003e\n\u003ctd\u003e59-95°F (15-35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4-113°F, max 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule footprint\u003c\/td\u003e\n\u003ctd\u003e26.5 in W x 6.7 in D (674 x 170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 modules per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485 (closed-loop with EG4 18kPV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous line wattage\u003c\/td\u003e\n\u003ctd\u003e8,000W per 120V leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge with PV\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge without PV\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10-20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e10 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid input\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac, 50\/60Hz, 180-270Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A (grid) \/ 90A (generator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003ePV Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (2 inputs on MPPT 1, 1 each on MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax input current\u003c\/td\u003e\n\u003ctd\u003e25A (MPPT 1) \/ 15A (MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100-600Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e100Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating range\u003c\/td\u003e\n\u003ctd\u003e140-500Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94-99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery and General\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48Vdc nominal, 40-60Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge \/ discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e~70W normal \/ ~18W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-13 to 140°F (-25 to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e68dB at 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.5 x 11.2 x 34.3 in (520 x 285 x 871 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-downloads alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ETHOS-SpecSheet-1.4-BatteryCB.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Battery Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS + EG4 ESS User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL9540A-Certificate-1.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540A Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL1973-ETHOS.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL1973 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-48V-ETHOS-DOC-UN38.3.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UN38.3 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-SDS_BigBattery_LFP-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e BigBattery LFP Safety Data Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Spec-Sheet.pdf?v=1789927253\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Manual-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Certification.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV UL1741 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Rapid Shutdown Wiring Guide (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":50214628130871,"sku":"K0754","price":14150.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/46-kWh-x9-Batteries-KIT0754-V2.webp?v=1789927947"},{"product_id":"bigbattery-ethos-48v-40-96kwh-battery-2x-eg4-18kpv-24kw-hybrid-inverter-ess-k0960","title":"BigBattery ETHOS 48V 40.96kWh LiFePO4 Battery + 2 x EG4 18kPV Hybrid Inverter ESS | 24kW Output, 36kW PV | UL9540 Whole-Home Backup | K0960","description":"\u003cdiv class=\"esk-jk-pd\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEnergy Storage System · 24kW · 40.96kWh · 36kW PV\u003c\/p\u003e\n\u003ch2\u003e40.96kWh of Stackable LiFePO4 Storage with 24kW of Hybrid Inverter Power\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA UL 9540 certified whole-home energy storage system: 8 stackable ETHOS 48V LiFePO4 modules (40.96kWh, 4 modules + 4 modules) matched with 2 EG4 18kPV hybrid inverters for 24kW of continuous 120\/240V split-phase output and up to 36kW of solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M700,11 L670,4 M660,11 L635,2 M625,11 L605,5 M590,11 L575,3 M560,11 L540,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\u003cpath d=\"M300,11 L180,11 M420,11 L520,11\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\" opacity=\"0.55\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e24kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous AC Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e40.96kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eLiFePO4 Storage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e36kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12 Years\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-kit-K0960.webp?v=1789927252\u0026amp;width=1400\" alt=\"BigBattery ETHOS + EG4 18kPV energy storage system kit K0960 - 8 battery modules and 2 inverter(s)\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2\u003eK0960 Overview\u003c\/h2\u003e\n\u003cp\u003eThe K0960 configuration of the BigBattery ETHOS + EG4 18kPV ESS combines 8 ETHOS 5.12kWh battery modules with 2 EG4 18kPV hybrid inverters. ETHOS modules stack on a rack base with a control box on top - no wall mounting, no rack cabinet - so 40.96kWh of storage installs in a footprint of 26.5 x 6.7 inches per stack. Every stack is IP65 \/ NEMA 4X rated and the batteries are UL1973, UL9540A and UN38.3 certified; together with the 18kPV the system is UL 9540 listed, which is what most utilities and inspectors now require for permitted home storage.\u003c\/p\u003e\n\u003cp\u003eEach EG4 18kPV supplies 12,000W of continuous 120\/240V split-phase power (15,500W surge with PV), accepts 18kW of solar on three MPPTs, and passes through 200A of grid power. It works on-grid with export or zero-export, off-grid, or as backup, and talks to the ETHOS control box in closed loop so charging current, state of charge and protection are coordinated automatically. With 2 inverters in parallel the system delivers 24kW continuous and up to 36kW of PV input.\u003c\/p\u003e\n\u003cp\u003e40.96kWh is roughly 1.9 days of typical household consumption (22kWh\/day) without sun, and the ETHOS platform scales past 80kWh by adding modules to each control box (up to 16 per box). BigBattery ships from Texas with a 12-year battery warranty, a 10-year inverter warranty and lifetime US-based technical support. Solar panels and racking are not included - pair the system with any 100-600Vdc PV array up to 36kW.\u003c\/p\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/collections\/bigbattery-kits\" title=\"BigBattery Kits\"\u003eBigBattery backup systems\u003c\/a\u003e, \u003ca href=\"\/collections\/bigbattery-batteries\" title=\"BigBattery Batteries\"\u003eBigBattery lithium batteries\u003c\/a\u003e and \u003ca href=\"\/collections\/eg4-inverters\" title=\"EG4 Inverters\"\u003eEG4 inverters\u003c\/a\u003e.\u003c\/p\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-kit.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS 48V 5.12kWh battery module - what is in the box\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\u003ch2\u003eK0960 Key Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feat-grid\"\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e01\u003c\/span\u003e\u003ch3\u003eUL 9540 certified ESS\u003c\/h3\u003e\n\u003cp\u003eETHOS battery and EG4 18kPV are certified together as a complete energy storage system, with UL9540A fire-safety testing, UL1973 and UN38.3 on the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e02\u003c\/span\u003e\u003ch3\u003e40.96kWh stackable LiFePO4\u003c\/h3\u003e\n\u003cp\u003e8 modules of 5.12kWh \/ 100Ah each, 6,000+ cycles, 16S cells and a smart BMS in every module; expand to 80+ kWh by adding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e03\u003c\/span\u003e\u003ch3\u003e24kW hybrid power, 36kW solar\u003c\/h3\u003e\n\u003cp\u003eEG4 18kPV: 12kW per unit, three MPPTs, 100-600Vdc input, 200A pass-through, generator input, RSD support and Wi-Fi monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e04\u003c\/span\u003e\u003ch3\u003eClosed-loop communication\u003c\/h3\u003e\n\u003cp\u003eCANBus link between control box and inverter for coordinated charging, accurate state of charge and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e05\u003c\/span\u003e\u003ch3\u003eIP65 \/ NEMA 4X\u003c\/h3\u003e\n\u003cp\u003eBattery stacks and inverter are weather rated for garages, covered patios and utility areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e06\u003c\/span\u003e\u003ch3\u003eFast, maintenance-free installation\u003c\/h3\u003e\n\u003cp\u003eStack, connect the included cables, and go - no routine servicing, 12-year battery and 10-year inverter warranties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-install.jpg?v=1789927251\u0026amp;width=1400\" alt=\"Customer installation - EG4 hybrid inverter with stacked BigBattery ETHOS modules in a utility room\" width=\"1400\" height=\"1867\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e8×\u003c\/span\u003e\u003cspan\u003eBigBattery ETHOS 48V 5.12kWh stackable LiFePO4 battery module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS control box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS rack base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eEG4 18kPV all-in-one hybrid solar inverter (18kW PV \/ 12kW AC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eParallel busbar\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e4×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack power cable pair (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack comm cable (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-inv-open.webp?v=1789927250\u0026amp;width=1400\" alt=\"EG4 18kPV hybrid inverter with wiring compartment open\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-runtime alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eRuntime\u003c\/span\u003e\u003ch2\u003eWhat 40.96kWh of storage can run\u003c\/h2\u003e\n\u003cp class=\"esk-note\"\u003eEstimates assume 85% usable energy and typical load ratings; actual runtime depends on your appliances, weather and settings.\u003c\/p\u003e\n\u003cdiv class=\"esk-run-grid\"\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~1.9 days\u003c\/span\u003e\u003cspan class=\"dev\"\u003eTypical home (22kWh\/day), no sun\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~14 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eCentral AC 3-ton (3kW) continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~41 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eRefrigerator + freezer (1kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e24kW\u003c\/span\u003e\u003cspan class=\"dev\"\u003eContinuous output, whole-house loads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-faqs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\u003ch2\u003eK0960 Common Questions\u003c\/h2\u003e\n\u003cdiv class=\"esk-faq-grid\"\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ1\u003c\/span\u003e\u003ch3\u003eHow long will 40.96kWh power my home?\u003c\/h3\u003e\n\u003cp\u003eAbout 1.9 days for a typical 22kWh\/day home with no solar input; with solar panels connected to the 18kPV (up to 36kW) the batteries recharge daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ2\u003c\/span\u003e\u003ch3\u003eDoes the kit include solar panels?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a battery + inverter ESS. Connect any PV array within the inverter limits (100-600Vdc, 18kW per inverter), or run it as grid-charged backup without solar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ3\u003c\/span\u003e\u003ch3\u003eIs it grid-tied or off-grid?\u003c\/h3\u003e\n\u003cp\u003eBoth. The EG4 18kPV is UL1741 certified for grid interaction (export or zero-export) and also runs fully off-grid; it has a generator input as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ4\u003c\/span\u003e\u003ch3\u003eCan I add more batteries later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each ETHOS control box supports up to 16 modules, and BigBattery sells single ETHOS modules, so the system can grow past 80kWh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ5\u003c\/span\u003e\u003ch3\u003eDoes it ship free?\u003c\/h3\u003e\n\u003cp\u003eYes - free freight shipping within the contiguous USA, $0 sales tax in most states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2\u003eK0960 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBigBattery ETHOS 48V 5.12kWh Stackable Battery Module (per module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V (51.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12kWh \/ 100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48-50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42-47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A per module (200A per control box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature\u003c\/td\u003e\n\u003ctd\u003e32-113°F (0-45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4-140°F (-20-60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temperature\u003c\/td\u003e\n\u003ctd\u003e59-95°F (15-35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4-113°F, max 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule footprint\u003c\/td\u003e\n\u003ctd\u003e26.5 in W x 6.7 in D (674 x 170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 modules per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485 (closed-loop with EG4 18kPV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous line wattage\u003c\/td\u003e\n\u003ctd\u003e8,000W per 120V leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge with PV\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge without PV\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10-20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e10 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid input\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac, 50\/60Hz, 180-270Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A (grid) \/ 90A (generator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003ePV Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (2 inputs on MPPT 1, 1 each on MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax input current\u003c\/td\u003e\n\u003ctd\u003e25A (MPPT 1) \/ 15A (MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100-600Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e100Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating range\u003c\/td\u003e\n\u003ctd\u003e140-500Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94-99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery and General\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48Vdc nominal, 40-60Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge \/ discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e~70W normal \/ ~18W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-13 to 140°F (-25 to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e68dB at 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.5 x 11.2 x 34.3 in (520 x 285 x 871 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-downloads alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ETHOS-SpecSheet-1.4-BatteryCB.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Battery Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS + EG4 ESS User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL9540A-Certificate-1.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540A Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL1973-ETHOS.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL1973 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-48V-ETHOS-DOC-UN38.3.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UN38.3 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-SDS_BigBattery_LFP-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e BigBattery LFP Safety Data Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Spec-Sheet.pdf?v=1789927253\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Manual-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Certification.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV UL1741 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Rapid Shutdown Wiring Guide (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":50214628163639,"sku":"K0960","price":17402.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/40-kWh-x8-Batteries-KIT0960-V2.webp?v=1789927953"},{"product_id":"bigbattery-ethos-48v-46-08kwh-battery-2x-eg4-18kpv-24kw-hybrid-inverter-ess-k0755","title":"BigBattery ETHOS 48V 46.08kWh LiFePO4 Battery + 2 x EG4 18kPV Hybrid Inverter ESS | 24kW Output, 36kW PV | UL9540 Whole-Home Backup | K0755","description":"\u003cdiv class=\"esk-jk-pd\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEnergy Storage System · 24kW · 46.08kWh · 36kW PV\u003c\/p\u003e\n\u003ch2\u003e46.08kWh of Stackable LiFePO4 Storage with 24kW of Hybrid Inverter Power\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA UL 9540 certified whole-home energy storage system: 9 stackable ETHOS 48V LiFePO4 modules (46.08kWh, 5 modules + 4 modules) matched with 2 EG4 18kPV hybrid inverters for 24kW of continuous 120\/240V split-phase output and up to 36kW of solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M700,11 L670,4 M660,11 L635,2 M625,11 L605,5 M590,11 L575,3 M560,11 L540,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\u003cpath d=\"M300,11 L180,11 M420,11 L520,11\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\" opacity=\"0.55\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e24kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous AC Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e46.08kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eLiFePO4 Storage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e36kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12 Years\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-kit-K0755.webp?v=1789927252\u0026amp;width=1400\" alt=\"BigBattery ETHOS + EG4 18kPV energy storage system kit K0755 - 9 battery modules and 2 inverter(s)\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2\u003eK0755 Overview\u003c\/h2\u003e\n\u003cp\u003eThe K0755 configuration of the BigBattery ETHOS + EG4 18kPV ESS combines 9 ETHOS 5.12kWh battery modules with 2 EG4 18kPV hybrid inverters. ETHOS modules stack on a rack base with a control box on top - no wall mounting, no rack cabinet - so 46.08kWh of storage installs in a footprint of 26.5 x 6.7 inches per stack. Every stack is IP65 \/ NEMA 4X rated and the batteries are UL1973, UL9540A and UN38.3 certified; together with the 18kPV the system is UL 9540 listed, which is what most utilities and inspectors now require for permitted home storage.\u003c\/p\u003e\n\u003cp\u003eEach EG4 18kPV supplies 12,000W of continuous 120\/240V split-phase power (15,500W surge with PV), accepts 18kW of solar on three MPPTs, and passes through 200A of grid power. It works on-grid with export or zero-export, off-grid, or as backup, and talks to the ETHOS control box in closed loop so charging current, state of charge and protection are coordinated automatically. With 2 inverters in parallel the system delivers 24kW continuous and up to 36kW of PV input.\u003c\/p\u003e\n\u003cp\u003e46.08kWh is roughly 2.1 days of typical household consumption (22kWh\/day) without sun, and the ETHOS platform scales past 80kWh by adding modules to each control box (up to 16 per box). BigBattery ships from Texas with a 12-year battery warranty, a 10-year inverter warranty and lifetime US-based technical support. Solar panels and racking are not included - pair the system with any 100-600Vdc PV array up to 36kW.\u003c\/p\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/collections\/bigbattery-kits\" title=\"BigBattery Kits\"\u003eBigBattery backup systems\u003c\/a\u003e, \u003ca href=\"\/collections\/bigbattery-batteries\" title=\"BigBattery Batteries\"\u003eBigBattery lithium batteries\u003c\/a\u003e and \u003ca href=\"\/collections\/eg4-inverters\" title=\"EG4 Inverters\"\u003eEG4 inverters\u003c\/a\u003e.\u003c\/p\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-kit.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS 48V 5.12kWh battery module - what is in the box\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\u003ch2\u003eK0755 Key Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feat-grid\"\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e01\u003c\/span\u003e\u003ch3\u003eUL 9540 certified ESS\u003c\/h3\u003e\n\u003cp\u003eETHOS battery and EG4 18kPV are certified together as a complete energy storage system, with UL9540A fire-safety testing, UL1973 and UN38.3 on the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e02\u003c\/span\u003e\u003ch3\u003e46.08kWh stackable LiFePO4\u003c\/h3\u003e\n\u003cp\u003e9 modules of 5.12kWh \/ 100Ah each, 6,000+ cycles, 16S cells and a smart BMS in every module; expand to 80+ kWh by adding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e03\u003c\/span\u003e\u003ch3\u003e24kW hybrid power, 36kW solar\u003c\/h3\u003e\n\u003cp\u003eEG4 18kPV: 12kW per unit, three MPPTs, 100-600Vdc input, 200A pass-through, generator input, RSD support and Wi-Fi monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e04\u003c\/span\u003e\u003ch3\u003eClosed-loop communication\u003c\/h3\u003e\n\u003cp\u003eCANBus link between control box and inverter for coordinated charging, accurate state of charge and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e05\u003c\/span\u003e\u003ch3\u003eIP65 \/ NEMA 4X\u003c\/h3\u003e\n\u003cp\u003eBattery stacks and inverter are weather rated for garages, covered patios and utility areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e06\u003c\/span\u003e\u003ch3\u003eFast, maintenance-free installation\u003c\/h3\u003e\n\u003cp\u003eStack, connect the included cables, and go - no routine servicing, 12-year battery and 10-year inverter warranties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-install.jpg?v=1789927251\u0026amp;width=1400\" alt=\"Customer installation - EG4 hybrid inverter with stacked BigBattery ETHOS modules in a utility room\" width=\"1400\" height=\"1867\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e9×\u003c\/span\u003e\u003cspan\u003eBigBattery ETHOS 48V 5.12kWh stackable LiFePO4 battery module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS control box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS rack base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eEG4 18kPV all-in-one hybrid solar inverter (18kW PV \/ 12kW AC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack comm cable (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e4×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack power cable pair (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eParallel busbar\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-inv-open.webp?v=1789927250\u0026amp;width=1400\" alt=\"EG4 18kPV hybrid inverter with wiring compartment open\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-runtime alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eRuntime\u003c\/span\u003e\u003ch2\u003eWhat 46.08kWh of storage can run\u003c\/h2\u003e\n\u003cp class=\"esk-note\"\u003eEstimates assume 85% usable energy and typical load ratings; actual runtime depends on your appliances, weather and settings.\u003c\/p\u003e\n\u003cdiv class=\"esk-run-grid\"\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~2.1 days\u003c\/span\u003e\u003cspan class=\"dev\"\u003eTypical home (22kWh\/day), no sun\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~15 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eCentral AC 3-ton (3kW) continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~46 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eRefrigerator + freezer (1kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e24kW\u003c\/span\u003e\u003cspan class=\"dev\"\u003eContinuous output, whole-house loads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-faqs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\u003ch2\u003eK0755 Common Questions\u003c\/h2\u003e\n\u003cdiv class=\"esk-faq-grid\"\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ1\u003c\/span\u003e\u003ch3\u003eHow long will 46.08kWh power my home?\u003c\/h3\u003e\n\u003cp\u003eAbout 2.1 days for a typical 22kWh\/day home with no solar input; with solar panels connected to the 18kPV (up to 36kW) the batteries recharge daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ2\u003c\/span\u003e\u003ch3\u003eDoes the kit include solar panels?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a battery + inverter ESS. Connect any PV array within the inverter limits (100-600Vdc, 18kW per inverter), or run it as grid-charged backup without solar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ3\u003c\/span\u003e\u003ch3\u003eIs it grid-tied or off-grid?\u003c\/h3\u003e\n\u003cp\u003eBoth. The EG4 18kPV is UL1741 certified for grid interaction (export or zero-export) and also runs fully off-grid; it has a generator input as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ4\u003c\/span\u003e\u003ch3\u003eCan I add more batteries later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each ETHOS control box supports up to 16 modules, and BigBattery sells single ETHOS modules, so the system can grow past 80kWh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ5\u003c\/span\u003e\u003ch3\u003eDoes it ship free?\u003c\/h3\u003e\n\u003cp\u003eYes - free freight shipping within the contiguous USA, $0 sales tax in most states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2\u003eK0755 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBigBattery ETHOS 48V 5.12kWh Stackable Battery Module (per module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V (51.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12kWh \/ 100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48-50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42-47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A per module (200A per control box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature\u003c\/td\u003e\n\u003ctd\u003e32-113°F (0-45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4-140°F (-20-60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temperature\u003c\/td\u003e\n\u003ctd\u003e59-95°F (15-35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4-113°F, max 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule footprint\u003c\/td\u003e\n\u003ctd\u003e26.5 in W x 6.7 in D (674 x 170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 modules per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485 (closed-loop with EG4 18kPV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous line wattage\u003c\/td\u003e\n\u003ctd\u003e8,000W per 120V leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge with PV\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge without PV\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10-20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e10 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid input\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac, 50\/60Hz, 180-270Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A (grid) \/ 90A (generator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003ePV Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (2 inputs on MPPT 1, 1 each on MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax input current\u003c\/td\u003e\n\u003ctd\u003e25A (MPPT 1) \/ 15A (MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100-600Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e100Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating range\u003c\/td\u003e\n\u003ctd\u003e140-500Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94-99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery and General\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48Vdc nominal, 40-60Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge \/ discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e~70W normal \/ ~18W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-13 to 140°F (-25 to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e68dB at 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.5 x 11.2 x 34.3 in (520 x 285 x 871 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-downloads alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ETHOS-SpecSheet-1.4-BatteryCB.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Battery Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS + EG4 ESS User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL9540A-Certificate-1.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540A Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL1973-ETHOS.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL1973 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-48V-ETHOS-DOC-UN38.3.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UN38.3 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-SDS_BigBattery_LFP-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e BigBattery LFP Safety Data Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Spec-Sheet.pdf?v=1789927253\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Manual-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Certification.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV UL1741 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Rapid Shutdown Wiring Guide (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":50214628196407,"sku":"K0755","price":18465.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/46-kWh-x9-Batteries-KIT0755-V2.webp?v=1789927959"},{"product_id":"bigbattery-ethos-48v-61-44kwh-battery-2x-eg4-18kpv-24kw-hybrid-inverter-ess-k0961","title":"BigBattery ETHOS 48V 61.44kWh LiFePO4 Battery + 2 x EG4 18kPV Hybrid Inverter ESS | 24kW Output, 36kW PV | UL9540 Whole-Home Backup | K0961","description":"\u003cdiv class=\"esk-jk-pd\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEnergy Storage System · 24kW · 61.44kWh · 36kW PV\u003c\/p\u003e\n\u003ch2\u003e61.44kWh of Stackable LiFePO4 Storage with 24kW of Hybrid Inverter Power\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA UL 9540 certified whole-home energy storage system: 12 stackable ETHOS 48V LiFePO4 modules (61.44kWh, 6 modules + 6 modules) matched with 2 EG4 18kPV hybrid inverters for 24kW of continuous 120\/240V split-phase output and up to 36kW of solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M700,11 L670,4 M660,11 L635,2 M625,11 L605,5 M590,11 L575,3 M560,11 L540,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\u003cpath d=\"M300,11 L180,11 M420,11 L520,11\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\" opacity=\"0.55\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e24kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous AC Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e61.44kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eLiFePO4 Storage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e36kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12 Years\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-kit-K0961.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS + EG4 18kPV energy storage system kit K0961 - 12 battery modules and 2 inverter(s)\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2\u003eK0961 Overview\u003c\/h2\u003e\n\u003cp\u003eThe K0961 configuration of the BigBattery ETHOS + EG4 18kPV ESS combines 12 ETHOS 5.12kWh battery modules with 2 EG4 18kPV hybrid inverters. ETHOS modules stack on a rack base with a control box on top - no wall mounting, no rack cabinet - so 61.44kWh of storage installs in a footprint of 26.5 x 6.7 inches per stack. Every stack is IP65 \/ NEMA 4X rated and the batteries are UL1973, UL9540A and UN38.3 certified; together with the 18kPV the system is UL 9540 listed, which is what most utilities and inspectors now require for permitted home storage.\u003c\/p\u003e\n\u003cp\u003eEach EG4 18kPV supplies 12,000W of continuous 120\/240V split-phase power (15,500W surge with PV), accepts 18kW of solar on three MPPTs, and passes through 200A of grid power. It works on-grid with export or zero-export, off-grid, or as backup, and talks to the ETHOS control box in closed loop so charging current, state of charge and protection are coordinated automatically. With 2 inverters in parallel the system delivers 24kW continuous and up to 36kW of PV input.\u003c\/p\u003e\n\u003cp\u003e61.44kWh is roughly 2.8 days of typical household consumption (22kWh\/day) without sun, and the ETHOS platform scales past 80kWh by adding modules to each control box (up to 16 per box). BigBattery ships from Texas with a 12-year battery warranty, a 10-year inverter warranty and lifetime US-based technical support. Solar panels and racking are not included - pair the system with any 100-600Vdc PV array up to 36kW.\u003c\/p\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/collections\/bigbattery-kits\" title=\"BigBattery Kits\"\u003eBigBattery backup systems\u003c\/a\u003e, \u003ca href=\"\/collections\/bigbattery-batteries\" title=\"BigBattery Batteries\"\u003eBigBattery lithium batteries\u003c\/a\u003e and \u003ca href=\"\/collections\/eg4-inverters\" title=\"EG4 Inverters\"\u003eEG4 inverters\u003c\/a\u003e.\u003c\/p\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-kit.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS 48V 5.12kWh battery module - what is in the box\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\u003ch2\u003eK0961 Key Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feat-grid\"\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e01\u003c\/span\u003e\u003ch3\u003eUL 9540 certified ESS\u003c\/h3\u003e\n\u003cp\u003eETHOS battery and EG4 18kPV are certified together as a complete energy storage system, with UL9540A fire-safety testing, UL1973 and UN38.3 on the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e02\u003c\/span\u003e\u003ch3\u003e61.44kWh stackable LiFePO4\u003c\/h3\u003e\n\u003cp\u003e12 modules of 5.12kWh \/ 100Ah each, 6,000+ cycles, 16S cells and a smart BMS in every module; expand to 80+ kWh by adding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e03\u003c\/span\u003e\u003ch3\u003e24kW hybrid power, 36kW solar\u003c\/h3\u003e\n\u003cp\u003eEG4 18kPV: 12kW per unit, three MPPTs, 100-600Vdc input, 200A pass-through, generator input, RSD support and Wi-Fi monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e04\u003c\/span\u003e\u003ch3\u003eClosed-loop communication\u003c\/h3\u003e\n\u003cp\u003eCANBus link between control box and inverter for coordinated charging, accurate state of charge and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e05\u003c\/span\u003e\u003ch3\u003eIP65 \/ NEMA 4X\u003c\/h3\u003e\n\u003cp\u003eBattery stacks and inverter are weather rated for garages, covered patios and utility areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e06\u003c\/span\u003e\u003ch3\u003eFast, maintenance-free installation\u003c\/h3\u003e\n\u003cp\u003eStack, connect the included cables, and go - no routine servicing, 12-year battery and 10-year inverter warranties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-install.jpg?v=1789927251\u0026amp;width=1400\" alt=\"Customer installation - EG4 hybrid inverter with stacked BigBattery ETHOS modules in a utility room\" width=\"1400\" height=\"1867\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e12×\u003c\/span\u003e\u003cspan\u003eBigBattery ETHOS 48V 5.12kWh stackable LiFePO4 battery module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS control box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS rack base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e4×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack power cable pair (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack comm cable (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eEG4 18kPV all-in-one hybrid solar inverter (18kW PV \/ 12kW AC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eParallel busbar\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eETHOS battery top plate cover\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-inv-open.webp?v=1789927250\u0026amp;width=1400\" alt=\"EG4 18kPV hybrid inverter with wiring compartment open\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-runtime alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eRuntime\u003c\/span\u003e\u003ch2\u003eWhat 61.44kWh of storage can run\u003c\/h2\u003e\n\u003cp class=\"esk-note\"\u003eEstimates assume 85% usable energy and typical load ratings; actual runtime depends on your appliances, weather and settings.\u003c\/p\u003e\n\u003cdiv class=\"esk-run-grid\"\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~2.8 days\u003c\/span\u003e\u003cspan class=\"dev\"\u003eTypical home (22kWh\/day), no sun\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~20 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eCentral AC 3-ton (3kW) continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~61 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eRefrigerator + freezer (1kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e24kW\u003c\/span\u003e\u003cspan class=\"dev\"\u003eContinuous output, whole-house loads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-faqs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\u003ch2\u003eK0961 Common Questions\u003c\/h2\u003e\n\u003cdiv class=\"esk-faq-grid\"\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ1\u003c\/span\u003e\u003ch3\u003eHow long will 61.44kWh power my home?\u003c\/h3\u003e\n\u003cp\u003eAbout 2.8 days for a typical 22kWh\/day home with no solar input; with solar panels connected to the 18kPV (up to 36kW) the batteries recharge daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ2\u003c\/span\u003e\u003ch3\u003eDoes the kit include solar panels?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a battery + inverter ESS. Connect any PV array within the inverter limits (100-600Vdc, 18kW per inverter), or run it as grid-charged backup without solar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ3\u003c\/span\u003e\u003ch3\u003eIs it grid-tied or off-grid?\u003c\/h3\u003e\n\u003cp\u003eBoth. The EG4 18kPV is UL1741 certified for grid interaction (export or zero-export) and also runs fully off-grid; it has a generator input as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ4\u003c\/span\u003e\u003ch3\u003eCan I add more batteries later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each ETHOS control box supports up to 16 modules, and BigBattery sells single ETHOS modules, so the system can grow past 80kWh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ5\u003c\/span\u003e\u003ch3\u003eDoes it ship free?\u003c\/h3\u003e\n\u003cp\u003eYes - free freight shipping within the contiguous USA, $0 sales tax in most states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2\u003eK0961 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBigBattery ETHOS 48V 5.12kWh Stackable Battery Module (per module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V (51.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12kWh \/ 100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48-50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42-47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A per module (200A per control box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature\u003c\/td\u003e\n\u003ctd\u003e32-113°F (0-45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4-140°F (-20-60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temperature\u003c\/td\u003e\n\u003ctd\u003e59-95°F (15-35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4-113°F, max 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule footprint\u003c\/td\u003e\n\u003ctd\u003e26.5 in W x 6.7 in D (674 x 170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 modules per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485 (closed-loop with EG4 18kPV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous line wattage\u003c\/td\u003e\n\u003ctd\u003e8,000W per 120V leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge with PV\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge without PV\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10-20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e10 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid input\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac, 50\/60Hz, 180-270Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A (grid) \/ 90A (generator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003ePV Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (2 inputs on MPPT 1, 1 each on MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax input current\u003c\/td\u003e\n\u003ctd\u003e25A (MPPT 1) \/ 15A (MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100-600Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e100Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating range\u003c\/td\u003e\n\u003ctd\u003e140-500Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94-99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery and General\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48Vdc nominal, 40-60Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge \/ discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e~70W normal \/ ~18W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-13 to 140°F (-25 to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e68dB at 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.5 x 11.2 x 34.3 in (520 x 285 x 871 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-downloads alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ETHOS-SpecSheet-1.4-BatteryCB.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Battery Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS + EG4 ESS User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL9540A-Certificate-1.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540A Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL1973-ETHOS.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL1973 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-48V-ETHOS-DOC-UN38.3.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UN38.3 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-SDS_BigBattery_LFP-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e BigBattery LFP Safety Data Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Spec-Sheet.pdf?v=1789927253\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Manual-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Certification.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV UL1741 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Rapid Shutdown Wiring Guide (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":50214628229175,"sku":"K0961","price":21344.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/60-kWh-x12-Batteries-KIT0961-V2.webp?v=1789927965"},{"product_id":"bigbattery-ethos-48v-46-08kwh-battery-3x-eg4-18kpv-36kw-hybrid-inverter-ess-k0966","title":"BigBattery ETHOS 48V 46.08kWh LiFePO4 Battery + 3 x EG4 18kPV Hybrid Inverter ESS | 36kW Output, 54kW PV | UL9540 Whole-Home Backup | K0966","description":"\u003cdiv class=\"esk-jk-pd\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEnergy Storage System · 36kW · 46.08kWh · 54kW PV\u003c\/p\u003e\n\u003ch2\u003e46.08kWh of Stackable LiFePO4 Storage with 36kW of Hybrid Inverter Power\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA UL 9540 certified whole-home energy storage system: 9 stackable ETHOS 48V LiFePO4 modules (46.08kWh, 3 modules + 3 modules + 3 modules) matched with 3 EG4 18kPV hybrid inverters for 36kW of continuous three-phase 120\/208V capable output and up to 54kW of solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M700,11 L670,4 M660,11 L635,2 M625,11 L605,5 M590,11 L575,3 M560,11 L540,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\u003cpath d=\"M300,11 L180,11 M420,11 L520,11\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\" opacity=\"0.55\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e36kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous AC Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e46.08kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eLiFePO4 Storage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e54kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12 Years\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-kit-K0966.webp?v=1789927252\u0026amp;width=1400\" alt=\"BigBattery ETHOS + EG4 18kPV energy storage system kit K0966 - 9 battery modules and 3 inverter(s)\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2\u003eK0966 Overview\u003c\/h2\u003e\n\u003cp\u003eThe K0966 configuration of the BigBattery ETHOS + EG4 18kPV ESS combines 9 ETHOS 5.12kWh battery modules with 3 EG4 18kPV hybrid inverters. ETHOS modules stack on a rack base with a control box on top - no wall mounting, no rack cabinet - so 46.08kWh of storage installs in a footprint of 26.5 x 6.7 inches per stack. Every stack is IP65 \/ NEMA 4X rated and the batteries are UL1973, UL9540A and UN38.3 certified; together with the 18kPV the system is UL 9540 listed, which is what most utilities and inspectors now require for permitted home storage.\u003c\/p\u003e\n\u003cp\u003eEach EG4 18kPV supplies 12,000W of continuous 120\/240V split-phase power (15,500W surge with PV), accepts 18kW of solar on three MPPTs, and passes through 200A of grid power. It works on-grid with export or zero-export, off-grid, or as backup, and talks to the ETHOS control box in closed loop so charging current, state of charge and protection are coordinated automatically. With 3 inverters in parallel the system delivers 36kW continuous and up to 54kW of PV input and can be configured for 120\/208V three-phase output.\u003c\/p\u003e\n\u003cp\u003e46.08kWh is roughly 2.1 days of typical household consumption (22kWh\/day) without sun, and the ETHOS platform scales past 80kWh by adding modules to each control box (up to 16 per box). BigBattery ships from Texas with a 12-year battery warranty, a 10-year inverter warranty and lifetime US-based technical support. Solar panels and racking are not included - pair the system with any 100-600Vdc PV array up to 54kW.\u003c\/p\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/collections\/bigbattery-kits\" title=\"BigBattery Kits\"\u003eBigBattery backup systems\u003c\/a\u003e, \u003ca href=\"\/collections\/bigbattery-batteries\" title=\"BigBattery Batteries\"\u003eBigBattery lithium batteries\u003c\/a\u003e and \u003ca href=\"\/collections\/eg4-inverters\" title=\"EG4 Inverters\"\u003eEG4 inverters\u003c\/a\u003e.\u003c\/p\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-kit.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS 48V 5.12kWh battery module - what is in the box\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\u003ch2\u003eK0966 Key Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feat-grid\"\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e01\u003c\/span\u003e\u003ch3\u003eUL 9540 certified ESS\u003c\/h3\u003e\n\u003cp\u003eETHOS battery and EG4 18kPV are certified together as a complete energy storage system, with UL9540A fire-safety testing, UL1973 and UN38.3 on the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e02\u003c\/span\u003e\u003ch3\u003e46.08kWh stackable LiFePO4\u003c\/h3\u003e\n\u003cp\u003e9 modules of 5.12kWh \/ 100Ah each, 6,000+ cycles, 16S cells and a smart BMS in every module; expand to 80+ kWh by adding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e03\u003c\/span\u003e\u003ch3\u003e36kW hybrid power, 54kW solar\u003c\/h3\u003e\n\u003cp\u003eEG4 18kPV: 12kW per unit, three MPPTs, 100-600Vdc input, 200A pass-through, generator input, RSD support and Wi-Fi monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e04\u003c\/span\u003e\u003ch3\u003eClosed-loop communication\u003c\/h3\u003e\n\u003cp\u003eCANBus link between control box and inverter for coordinated charging, accurate state of charge and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e05\u003c\/span\u003e\u003ch3\u003eIP65 \/ NEMA 4X\u003c\/h3\u003e\n\u003cp\u003eBattery stacks and inverter are weather rated for garages, covered patios and utility areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e06\u003c\/span\u003e\u003ch3\u003eFast, maintenance-free installation\u003c\/h3\u003e\n\u003cp\u003eStack, connect the included cables, and go - no routine servicing, 12-year battery and 10-year inverter warranties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-install.jpg?v=1789927251\u0026amp;width=1400\" alt=\"Customer installation - EG4 hybrid inverter with stacked BigBattery ETHOS modules in a utility room\" width=\"1400\" height=\"1867\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e9×\u003c\/span\u003e\u003cspan\u003eBigBattery ETHOS 48V 5.12kWh stackable LiFePO4 battery module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eETHOS control box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eEG4 18kPV all-in-one hybrid solar inverter (18kW PV \/ 12kW AC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003e15kWh ETHOS controller-to-battery cable\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eParallel busbar\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-inv-open.webp?v=1789927250\u0026amp;width=1400\" alt=\"EG4 18kPV hybrid inverter with wiring compartment open\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-runtime alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eRuntime\u003c\/span\u003e\u003ch2\u003eWhat 46.08kWh of storage can run\u003c\/h2\u003e\n\u003cp class=\"esk-note\"\u003eEstimates assume 85% usable energy and typical load ratings; actual runtime depends on your appliances, weather and settings.\u003c\/p\u003e\n\u003cdiv class=\"esk-run-grid\"\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~2.1 days\u003c\/span\u003e\u003cspan class=\"dev\"\u003eTypical home (22kWh\/day), no sun\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~15 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eCentral AC 3-ton (3kW) continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~46 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eRefrigerator + freezer (1kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e36kW\u003c\/span\u003e\u003cspan class=\"dev\"\u003eContinuous output, whole-house loads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-faqs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\u003ch2\u003eK0966 Common Questions\u003c\/h2\u003e\n\u003cdiv class=\"esk-faq-grid\"\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ1\u003c\/span\u003e\u003ch3\u003eHow long will 46.08kWh power my home?\u003c\/h3\u003e\n\u003cp\u003eAbout 2.1 days for a typical 22kWh\/day home with no solar input; with solar panels connected to the 18kPV (up to 54kW) the batteries recharge daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ2\u003c\/span\u003e\u003ch3\u003eDoes the kit include solar panels?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a battery + inverter ESS. Connect any PV array within the inverter limits (100-600Vdc, 18kW per inverter), or run it as grid-charged backup without solar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ3\u003c\/span\u003e\u003ch3\u003eIs it grid-tied or off-grid?\u003c\/h3\u003e\n\u003cp\u003eBoth. The EG4 18kPV is UL1741 certified for grid interaction (export or zero-export) and also runs fully off-grid; it has a generator input as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ4\u003c\/span\u003e\u003ch3\u003eCan I add more batteries later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each ETHOS control box supports up to 16 modules, and BigBattery sells single ETHOS modules, so the system can grow past 80kWh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ5\u003c\/span\u003e\u003ch3\u003eDoes it ship free?\u003c\/h3\u003e\n\u003cp\u003eYes - free freight shipping within the contiguous USA, $0 sales tax in most states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2\u003eK0966 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBigBattery ETHOS 48V 5.12kWh Stackable Battery Module (per module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V (51.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12kWh \/ 100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48-50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42-47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A per module (200A per control box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature\u003c\/td\u003e\n\u003ctd\u003e32-113°F (0-45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4-140°F (-20-60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temperature\u003c\/td\u003e\n\u003ctd\u003e59-95°F (15-35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4-113°F, max 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule footprint\u003c\/td\u003e\n\u003ctd\u003e26.5 in W x 6.7 in D (674 x 170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 modules per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485 (closed-loop with EG4 18kPV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous line wattage\u003c\/td\u003e\n\u003ctd\u003e8,000W per 120V leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge with PV\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge without PV\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10-20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e10 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid input\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac, 50\/60Hz, 180-270Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A (grid) \/ 90A (generator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003ePV Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (2 inputs on MPPT 1, 1 each on MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax input current\u003c\/td\u003e\n\u003ctd\u003e25A (MPPT 1) \/ 15A (MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100-600Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e100Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating range\u003c\/td\u003e\n\u003ctd\u003e140-500Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94-99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery and General\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48Vdc nominal, 40-60Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge \/ discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e~70W normal \/ ~18W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-13 to 140°F (-25 to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e68dB at 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.5 x 11.2 x 34.3 in (520 x 285 x 871 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-downloads alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ETHOS-SpecSheet-1.4-BatteryCB.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Battery Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS + EG4 ESS User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL9540A-Certificate-1.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540A Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL1973-ETHOS.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL1973 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-48V-ETHOS-DOC-UN38.3.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UN38.3 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-SDS_BigBattery_LFP-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e BigBattery LFP Safety Data Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Spec-Sheet.pdf?v=1789927253\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Manual-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Certification.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV UL1741 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Rapid Shutdown Wiring Guide (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":50214628261943,"sku":"K0966","price":22437.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/46-kWh-x9-Batteries-KIT0966-V2.webp?v=1789927970"},{"product_id":"bigbattery-ethos-48v-61-44kwh-battery-3x-eg4-18kpv-36kw-hybrid-inverter-ess-k0967","title":"BigBattery ETHOS 48V 61.44kWh LiFePO4 Battery + 3 x EG4 18kPV Hybrid Inverter ESS | 36kW Output, 54kW PV | UL9540 Whole-Home Backup | K0967","description":"\u003cdiv class=\"esk-jk-pd\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEnergy Storage System · 36kW · 61.44kWh · 54kW PV\u003c\/p\u003e\n\u003ch2\u003e61.44kWh of Stackable LiFePO4 Storage with 36kW of Hybrid Inverter Power\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA UL 9540 certified whole-home energy storage system: 12 stackable ETHOS 48V LiFePO4 modules (61.44kWh, 4 modules + 4 modules + 4 modules) matched with 3 EG4 18kPV hybrid inverters for 36kW of continuous three-phase 120\/208V capable output and up to 54kW of solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M700,11 L670,4 M660,11 L635,2 M625,11 L605,5 M590,11 L575,3 M560,11 L540,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\u003cpath d=\"M300,11 L180,11 M420,11 L520,11\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\" opacity=\"0.55\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e36kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous AC Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e61.44kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eLiFePO4 Storage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e54kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12 Years\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-kit-K0967.webp?v=1789927252\u0026amp;width=1400\" alt=\"BigBattery ETHOS + EG4 18kPV energy storage system kit K0967 - 12 battery modules and 3 inverter(s)\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2\u003eK0967 Overview\u003c\/h2\u003e\n\u003cp\u003eThe K0967 configuration of the BigBattery ETHOS + EG4 18kPV ESS combines 12 ETHOS 5.12kWh battery modules with 3 EG4 18kPV hybrid inverters. ETHOS modules stack on a rack base with a control box on top - no wall mounting, no rack cabinet - so 61.44kWh of storage installs in a footprint of 26.5 x 6.7 inches per stack. Every stack is IP65 \/ NEMA 4X rated and the batteries are UL1973, UL9540A and UN38.3 certified; together with the 18kPV the system is UL 9540 listed, which is what most utilities and inspectors now require for permitted home storage.\u003c\/p\u003e\n\u003cp\u003eEach EG4 18kPV supplies 12,000W of continuous 120\/240V split-phase power (15,500W surge with PV), accepts 18kW of solar on three MPPTs, and passes through 200A of grid power. It works on-grid with export or zero-export, off-grid, or as backup, and talks to the ETHOS control box in closed loop so charging current, state of charge and protection are coordinated automatically. With 3 inverters in parallel the system delivers 36kW continuous and up to 54kW of PV input and can be configured for 120\/208V three-phase output.\u003c\/p\u003e\n\u003cp\u003e61.44kWh is roughly 2.8 days of typical household consumption (22kWh\/day) without sun, and the ETHOS platform scales past 80kWh by adding modules to each control box (up to 16 per box). BigBattery ships from Texas with a 12-year battery warranty, a 10-year inverter warranty and lifetime US-based technical support. Solar panels and racking are not included - pair the system with any 100-600Vdc PV array up to 54kW.\u003c\/p\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/collections\/bigbattery-kits\" title=\"BigBattery Kits\"\u003eBigBattery backup systems\u003c\/a\u003e, \u003ca href=\"\/collections\/bigbattery-batteries\" title=\"BigBattery Batteries\"\u003eBigBattery lithium batteries\u003c\/a\u003e and \u003ca href=\"\/collections\/eg4-inverters\" title=\"EG4 Inverters\"\u003eEG4 inverters\u003c\/a\u003e.\u003c\/p\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-kit.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS 48V 5.12kWh battery module - what is in the box\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\u003ch2\u003eK0967 Key Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feat-grid\"\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e01\u003c\/span\u003e\u003ch3\u003eUL 9540 certified ESS\u003c\/h3\u003e\n\u003cp\u003eETHOS battery and EG4 18kPV are certified together as a complete energy storage system, with UL9540A fire-safety testing, UL1973 and UN38.3 on the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e02\u003c\/span\u003e\u003ch3\u003e61.44kWh stackable LiFePO4\u003c\/h3\u003e\n\u003cp\u003e12 modules of 5.12kWh \/ 100Ah each, 6,000+ cycles, 16S cells and a smart BMS in every module; expand to 80+ kWh by adding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e03\u003c\/span\u003e\u003ch3\u003e36kW hybrid power, 54kW solar\u003c\/h3\u003e\n\u003cp\u003eEG4 18kPV: 12kW per unit, three MPPTs, 100-600Vdc input, 200A pass-through, generator input, RSD support and Wi-Fi monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e04\u003c\/span\u003e\u003ch3\u003eClosed-loop communication\u003c\/h3\u003e\n\u003cp\u003eCANBus link between control box and inverter for coordinated charging, accurate state of charge and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e05\u003c\/span\u003e\u003ch3\u003eIP65 \/ NEMA 4X\u003c\/h3\u003e\n\u003cp\u003eBattery stacks and inverter are weather rated for garages, covered patios and utility areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e06\u003c\/span\u003e\u003ch3\u003eFast, maintenance-free installation\u003c\/h3\u003e\n\u003cp\u003eStack, connect the included cables, and go - no routine servicing, 12-year battery and 10-year inverter warranties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-install.jpg?v=1789927251\u0026amp;width=1400\" alt=\"Customer installation - EG4 hybrid inverter with stacked BigBattery ETHOS modules in a utility room\" width=\"1400\" height=\"1867\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e12×\u003c\/span\u003e\u003cspan\u003eBigBattery ETHOS 48V 5.12kWh stackable LiFePO4 battery module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eEG4 18kPV all-in-one hybrid solar inverter (18kW PV \/ 12kW AC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eETHOS control box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eETHOS rack base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e6×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack power cable pair (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack comm cable (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eParallel busbar\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eETHOS battery top plate cover\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-inv-open.webp?v=1789927250\u0026amp;width=1400\" alt=\"EG4 18kPV hybrid inverter with wiring compartment open\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-runtime alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eRuntime\u003c\/span\u003e\u003ch2\u003eWhat 61.44kWh of storage can run\u003c\/h2\u003e\n\u003cp class=\"esk-note\"\u003eEstimates assume 85% usable energy and typical load ratings; actual runtime depends on your appliances, weather and settings.\u003c\/p\u003e\n\u003cdiv class=\"esk-run-grid\"\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~2.8 days\u003c\/span\u003e\u003cspan class=\"dev\"\u003eTypical home (22kWh\/day), no sun\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~20 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eCentral AC 3-ton (3kW) continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~61 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eRefrigerator + freezer (1kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e36kW\u003c\/span\u003e\u003cspan class=\"dev\"\u003eContinuous output, whole-house loads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-faqs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\u003ch2\u003eK0967 Common Questions\u003c\/h2\u003e\n\u003cdiv class=\"esk-faq-grid\"\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ1\u003c\/span\u003e\u003ch3\u003eHow long will 61.44kWh power my home?\u003c\/h3\u003e\n\u003cp\u003eAbout 2.8 days for a typical 22kWh\/day home with no solar input; with solar panels connected to the 18kPV (up to 54kW) the batteries recharge daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ2\u003c\/span\u003e\u003ch3\u003eDoes the kit include solar panels?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a battery + inverter ESS. Connect any PV array within the inverter limits (100-600Vdc, 18kW per inverter), or run it as grid-charged backup without solar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ3\u003c\/span\u003e\u003ch3\u003eIs it grid-tied or off-grid?\u003c\/h3\u003e\n\u003cp\u003eBoth. The EG4 18kPV is UL1741 certified for grid interaction (export or zero-export) and also runs fully off-grid; it has a generator input as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ4\u003c\/span\u003e\u003ch3\u003eCan I add more batteries later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each ETHOS control box supports up to 16 modules, and BigBattery sells single ETHOS modules, so the system can grow past 80kWh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ5\u003c\/span\u003e\u003ch3\u003eDoes it ship free?\u003c\/h3\u003e\n\u003cp\u003eYes - free freight shipping within the contiguous USA, $0 sales tax in most states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2\u003eK0967 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBigBattery ETHOS 48V 5.12kWh Stackable Battery Module (per module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V (51.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12kWh \/ 100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48-50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42-47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A per module (200A per control box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature\u003c\/td\u003e\n\u003ctd\u003e32-113°F (0-45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4-140°F (-20-60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temperature\u003c\/td\u003e\n\u003ctd\u003e59-95°F (15-35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4-113°F, max 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule footprint\u003c\/td\u003e\n\u003ctd\u003e26.5 in W x 6.7 in D (674 x 170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 modules per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485 (closed-loop with EG4 18kPV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous line wattage\u003c\/td\u003e\n\u003ctd\u003e8,000W per 120V leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge with PV\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge without PV\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10-20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e10 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid input\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac, 50\/60Hz, 180-270Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A (grid) \/ 90A (generator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003ePV Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (2 inputs on MPPT 1, 1 each on MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax input current\u003c\/td\u003e\n\u003ctd\u003e25A (MPPT 1) \/ 15A (MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100-600Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e100Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating range\u003c\/td\u003e\n\u003ctd\u003e140-500Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94-99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery and General\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48Vdc nominal, 40-60Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge \/ discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e~70W normal \/ ~18W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-13 to 140°F (-25 to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e68dB at 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.5 x 11.2 x 34.3 in (520 x 285 x 871 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-downloads alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ETHOS-SpecSheet-1.4-BatteryCB.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Battery Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS + EG4 ESS User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL9540A-Certificate-1.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540A Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL1973-ETHOS.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL1973 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-48V-ETHOS-DOC-UN38.3.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UN38.3 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-SDS_BigBattery_LFP-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e BigBattery LFP Safety Data Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Spec-Sheet.pdf?v=1789927253\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Manual-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Certification.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV UL1741 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Rapid Shutdown Wiring Guide (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":50214628294711,"sku":"K0967","price":25624.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/61-kWh-x12-Batteries-KIT0967-V2.webp?v=1789928005"},{"product_id":"bigbattery-ethos-48v-92-16kwh-battery-3x-eg4-18kpv-36kw-hybrid-inverter-ess-k0968","title":"BigBattery ETHOS 48V 92.16kWh LiFePO4 Battery + 3 x EG4 18kPV Hybrid Inverter ESS | 36kW Output, 54kW PV | UL9540 Whole-Home Backup | K0968","description":"\u003cdiv class=\"esk-jk-pd\"\u003e\n\u003cdiv class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEnergy Storage System · 36kW · 92.16kWh · 54kW PV\u003c\/p\u003e\n\u003ch2\u003e92.16kWh of Stackable LiFePO4 Storage with 36kW of Hybrid Inverter Power\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA UL 9540 certified whole-home energy storage system: 18 stackable ETHOS 48V LiFePO4 modules (92.16kWh, 6 modules + 6 modules + 6 modules) matched with 3 EG4 18kPV hybrid inverters for 36kW of continuous three-phase 120\/208V capable output and up to 54kW of solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\u003cpath d=\"M0,11 L30,4 M40,11 L65,2 M75,11 L95,5 M110,11 L125,3 M140,11 L160,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003cpath d=\"M700,11 L670,4 M660,11 L635,2 M625,11 L605,5 M590,11 L575,3 M560,11 L540,6\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\"\u003e\u003c\/path\u003e\u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\u003cpath d=\"M300,11 L180,11 M420,11 L520,11\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" fill=\"none\" opacity=\"0.55\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e36kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eContinuous AC Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e92.16kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eLiFePO4 Storage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e54kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax Solar Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12 Years\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-kit-K0968.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS + EG4 18kPV energy storage system kit K0968 - 18 battery modules and 3 inverter(s)\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-overview\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eOverview\u003c\/span\u003e\u003ch2\u003eK0968 Overview\u003c\/h2\u003e\n\u003cp\u003eThe K0968 configuration of the BigBattery ETHOS + EG4 18kPV ESS combines 18 ETHOS 5.12kWh battery modules with 3 EG4 18kPV hybrid inverters. ETHOS modules stack on a rack base with a control box on top - no wall mounting, no rack cabinet - so 92.16kWh of storage installs in a footprint of 26.5 x 6.7 inches per stack. Every stack is IP65 \/ NEMA 4X rated and the batteries are UL1973, UL9540A and UN38.3 certified; together with the 18kPV the system is UL 9540 listed, which is what most utilities and inspectors now require for permitted home storage.\u003c\/p\u003e\n\u003cp\u003eEach EG4 18kPV supplies 12,000W of continuous 120\/240V split-phase power (15,500W surge with PV), accepts 18kW of solar on three MPPTs, and passes through 200A of grid power. It works on-grid with export or zero-export, off-grid, or as backup, and talks to the ETHOS control box in closed loop so charging current, state of charge and protection are coordinated automatically. With 3 inverters in parallel the system delivers 36kW continuous and up to 54kW of PV input and can be configured for 120\/208V three-phase output.\u003c\/p\u003e\n\u003cp\u003e92.16kWh is roughly 4.2 days of typical household consumption (22kWh\/day) without sun, and the ETHOS platform scales past 80kWh by adding modules to each control box (up to 16 per box). BigBattery ships from Texas with a 12-year battery warranty, a 10-year inverter warranty and lifetime US-based technical support. Solar panels and racking are not included - pair the system with any 100-600Vdc PV array up to 54kW.\u003c\/p\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/collections\/bigbattery-kits\" title=\"BigBattery Kits\"\u003eBigBattery backup systems\u003c\/a\u003e, \u003ca href=\"\/collections\/bigbattery-batteries\" title=\"BigBattery Batteries\"\u003eBigBattery lithium batteries\u003c\/a\u003e and \u003ca href=\"\/collections\/eg4-inverters\" title=\"EG4 Inverters\"\u003eEG4 inverters\u003c\/a\u003e.\u003c\/p\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-kit.webp?v=1789927251\u0026amp;width=1400\" alt=\"BigBattery ETHOS 48V 5.12kWh battery module - what is in the box\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-features alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFeatures\u003c\/span\u003e\u003ch2\u003eK0968 Key Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feat-grid\"\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e01\u003c\/span\u003e\u003ch3\u003eUL 9540 certified ESS\u003c\/h3\u003e\n\u003cp\u003eETHOS battery and EG4 18kPV are certified together as a complete energy storage system, with UL9540A fire-safety testing, UL1973 and UN38.3 on the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e02\u003c\/span\u003e\u003ch3\u003e92.16kWh stackable LiFePO4\u003c\/h3\u003e\n\u003cp\u003e18 modules of 5.12kWh \/ 100Ah each, 6,000+ cycles, 16S cells and a smart BMS in every module; expand to 80+ kWh by adding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e03\u003c\/span\u003e\u003ch3\u003e36kW hybrid power, 54kW solar\u003c\/h3\u003e\n\u003cp\u003eEG4 18kPV: 12kW per unit, three MPPTs, 100-600Vdc input, 200A pass-through, generator input, RSD support and Wi-Fi monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e04\u003c\/span\u003e\u003ch3\u003eClosed-loop communication\u003c\/h3\u003e\n\u003cp\u003eCANBus link between control box and inverter for coordinated charging, accurate state of charge and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e05\u003c\/span\u003e\u003ch3\u003eIP65 \/ NEMA 4X\u003c\/h3\u003e\n\u003cp\u003eBattery stacks and inverter are weather rated for garages, covered patios and utility areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-feat\"\u003e\n\u003cspan class=\"idx\"\u003e06\u003c\/span\u003e\u003ch3\u003eFast, maintenance-free installation\u003c\/h3\u003e\n\u003cp\u003eStack, connect the included cables, and go - no routine servicing, 12-year battery and 10-year inverter warranties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-install.jpg?v=1789927251\u0026amp;width=1400\" alt=\"Customer installation - EG4 hybrid inverter with stacked BigBattery ETHOS modules in a utility room\" width=\"1400\" height=\"1867\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-box\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eIncluded\u003c\/span\u003e\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cul class=\"esk-box-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e18×\u003c\/span\u003e\u003cspan\u003eBigBattery ETHOS 48V 5.12kWh stackable LiFePO4 battery module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eETHOS control box\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eETHOS rack base\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e6×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack power cable pair (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eETHOS stack-to-stack comm cable (4.9 ft)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eEG4 18kPV all-in-one hybrid solar inverter (18kW PV \/ 12kW AC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eParallel busbar\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e3×\u003c\/span\u003e\u003cspan\u003eETHOS battery top plate cover\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cfigure class=\"esk-banner\" style=\"padding-top:32px\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ethos-bb-inv-open.webp?v=1789927250\u0026amp;width=1400\" alt=\"EG4 18kPV hybrid inverter with wiring compartment open\" width=\"1400\" height=\"876\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\u003csection class=\"esk-runtime alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eRuntime\u003c\/span\u003e\u003ch2\u003eWhat 92.16kWh of storage can run\u003c\/h2\u003e\n\u003cp class=\"esk-note\"\u003eEstimates assume 85% usable energy and typical load ratings; actual runtime depends on your appliances, weather and settings.\u003c\/p\u003e\n\u003cdiv class=\"esk-run-grid\"\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~4.2 days\u003c\/span\u003e\u003cspan class=\"dev\"\u003eTypical home (22kWh\/day), no sun\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~31 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eCentral AC 3-ton (3kW) continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e~92 hours\u003c\/span\u003e\u003cspan class=\"dev\"\u003eRefrigerator + freezer (1kW)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-run\"\u003e\n\u003cspan class=\"val\"\u003e36kW\u003c\/span\u003e\u003cspan class=\"dev\"\u003eContinuous output, whole-house loads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-faqs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\u003ch2\u003eK0968 Common Questions\u003c\/h2\u003e\n\u003cdiv class=\"esk-faq-grid\"\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ1\u003c\/span\u003e\u003ch3\u003eHow long will 92.16kWh power my home?\u003c\/h3\u003e\n\u003cp\u003eAbout 4.2 days for a typical 22kWh\/day home with no solar input; with solar panels connected to the 18kPV (up to 54kW) the batteries recharge daily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ2\u003c\/span\u003e\u003ch3\u003eDoes the kit include solar panels?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a battery + inverter ESS. Connect any PV array within the inverter limits (100-600Vdc, 18kW per inverter), or run it as grid-charged backup without solar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ3\u003c\/span\u003e\u003ch3\u003eIs it grid-tied or off-grid?\u003c\/h3\u003e\n\u003cp\u003eBoth. The EG4 18kPV is UL1741 certified for grid interaction (export or zero-export) and also runs fully off-grid; it has a generator input as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ4\u003c\/span\u003e\u003ch3\u003eCan I add more batteries later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each ETHOS control box supports up to 16 modules, and BigBattery sells single ETHOS modules, so the system can grow past 80kWh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-faq\"\u003e\n\u003cspan class=\"idx\"\u003eQ5\u003c\/span\u003e\u003ch3\u003eDoes it ship free?\u003c\/h3\u003e\n\u003cp\u003eYes - free freight shipping within the contiguous USA, $0 sales tax in most states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-specs alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eData\u003c\/span\u003e\u003ch2\u003eK0968 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eBigBattery ETHOS 48V 5.12kWh Stackable Battery Module (per module)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e48V (51.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per module\u003c\/td\u003e\n\u003ctd\u003e5.12kWh \/ 100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e16S per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage range\u003c\/td\u003e\n\u003ctd\u003e55.6-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge voltage\u003c\/td\u003e\n\u003ctd\u003e57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage range\u003c\/td\u003e\n\u003ctd\u003e48-57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuggested low-voltage cutoff\u003c\/td\u003e\n\u003ctd\u003e48-50.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS cutoff range\u003c\/td\u003e\n\u003ctd\u003e42-47V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A per module (200A per control box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax discharge peak current\u003c\/td\u003e\n\u003ctd\u003e300A (max 5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge current\u003c\/td\u003e\n\u003ctd\u003e200A per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge temperature\u003c\/td\u003e\n\u003ctd\u003e32-113°F (0-45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4-140°F (-20-60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal discharge temperature\u003c\/td\u003e\n\u003ctd\u003e59-95°F (15-35°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage (SoC \u0026gt;50%)\u003c\/td\u003e\n\u003ctd\u003e-4-113°F, max 6 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule footprint\u003c\/td\u003e\n\u003ctd\u003e26.5 in W x 6.7 in D (674 x 170 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 modules per control box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485 (closed-loop with EG4 18kPV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e12,000W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous output current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous line wattage\u003c\/td\u003e\n\u003ctd\u003e8,000W per 120V leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge with PV\u003c\/td\u003e\n\u003ctd\u003e14,700W (10 min) \/ 15,500W (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge without PV\u003c\/td\u003e\n\u003ctd\u003e13,500W (10 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003e0.99 (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5% (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer time\u003c\/td\u003e\n\u003ctd\u003e10-20ms (single) \/ 20ms (parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e10 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eAC Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid input\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac, 50\/60Hz, 180-270Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC input power\u003c\/td\u003e\n\u003ctd\u003e12,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC bypass\u003c\/td\u003e\n\u003ctd\u003e200A (grid) \/ 90A (generator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003ePV Input\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (2 inputs on MPPT 1, 1 each on MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax PV array power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax input current\u003c\/td\u003e\n\u003ctd\u003e25A (MPPT 1) \/ 15A (MPPT 2 and 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input voltage range\u003c\/td\u003e\n\u003ctd\u003e100-600Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e100Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT operating range\u003c\/td\u003e\n\u003ctd\u003e140-500Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e94-99.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"grp\"\u003e\u003ctd colspan=\"2\"\u003eBattery and General\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48Vdc nominal, 40-60Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax charge \/ discharge current\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle consumption\u003c\/td\u003e\n\u003ctd\u003e~70W normal \/ ~18W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-13 to 140°F (-25 to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;6,561 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e68dB at 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CANBus \/ Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.5 x 11.2 x 34.3 in (520 x 285 x 871 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e121 lb (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"esk-downloads alt\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eAdditional Documentation\u003c\/span\u003e\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-ETHOS-SpecSheet-1.4-BatteryCB.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS Battery Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-BB-x-EG4-08_11-ETHOS-ESS-USER-MANUAL.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS + EG4 ESS User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL9540A-Certificate-1.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL9540A Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-UL1973-ETHOS.pdf?v=1789927251\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UL1973 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-48V-ETHOS-DOC-UN38.3.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e ETHOS UN38.3 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-SDS_BigBattery_LFP-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e BigBattery LFP Safety Data Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Spec-Sheet.pdf?v=1789927253\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Spec Sheet (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Manual-1.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV User Manual (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-EG4-18KPV-12LV-Certification.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV UL1741 Certificate (PDF)\u003c\/a\u003e\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/bigbattery-RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1789927252\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M12 3v11\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"m8 10 4 4 4-4\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 17v3h14v-3\" stroke=\"currentColor\" stroke-width=\"2\" fill=\"none\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003c\/svg\u003e EG4 18kPV Rapid Shutdown Wiring Guide (PDF)\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"esk-footer\"\u003e\u003cp\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e within the contiguous USA · \u003cstrong\u003e$0 sales tax\u003c\/strong\u003e in most states · Questions? Call \u003ca href=\"tel:+13073177213\"\u003e+1 307 317 7213\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":50214628360247,"sku":"K0968","price":31999.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/92-kWh-x18-Batteries-KIT0968-V2.webp?v=1789928010"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/collections\/SGP6-RHINO214.jpg?v=1754668953","url":"https:\/\/ecosolarkits.com\/collections\/bigbattery-kits.oembed?page=2","provider":"Eco Solar Kits","version":"1.0","type":"link"}