{"title":"$500 Off - Code SAVE500 (orders $8,000+)","description":"\u003cp\u003eEvery product on this page qualifies for \u003cstrong\u003e$500 off\u003c\/strong\u003e with code \u003cstrong\u003eSAVE500\u003c\/strong\u003e on orders of $8,000 or more. Enter the code at checkout. One code per order - codes can't be combined. Free shipping to the lower 48 states.\u003c\/p\u003e","products":[{"product_id":"sungold-power-off-grid-10000w-solar-kit-48vdc-120v-240v-power-output-lifepo4-20-48kwh-lithium-battery-12-x-450-watts-solar-panels-sgr-10k2m","title":"Sungold Power Off‑Grid 10,000W Solar Kit 48VDC 120V\/240V Output | LiFePO4 20.48 kWh Battery \u0026 12×450W Panels (SGR‑10K2M)","description":"\u003cdiv class=\"esk-pd esk-pd-a esk-sgr10k2m-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEco Solar Kits · Sungold Power · SGR-10K2M\u003c\/p\u003e\n\u003ch2\u003eSungold Power Off‑Grid 10,000W Solar Kit 48VDC 120V\/240V Output | LiFePO4 20.48 kWh Battery \u0026amp; 12×450W Panels (SGR‑10K2M)\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA complete off-grid solar system — two paralleled 5,000W WiFi-enabled inverters, 20.48kWh of LiFePO₄ battery storage, and twelve 450W monocrystalline panels.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\n    \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\n    \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\n    \u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\n    \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\n  \u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,000W\u003c\/span\u003e\u003cspan class=\"label\"\u003eInverter Output (×2)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e20.48kWh\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\"\u003e12×450W\u003c\/span\u003e\u003cspan class=\"label\"\u003eSolar Panels\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e120V\/240V\u003c\/span\u003e\u003cspan class=\"label\"\u003eSplit-Phase Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ OVERVIEW ============ --\u003e\n\u003csection class=\"esk-overview\"\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eIntroducing the SGR-10K2M Off-Grid Solar Kit – an exceptional package designed to power your home sustainably. This comprehensive kit includes 12 top-of-the-line 450W solar panels, 4 high-capacity 5.12KWH server rack batteries, and 2 robust 5000W solar inverters (120V\/240V), along with essential cables and brackets.\u003c\/p\u003e\n\u003cp\u003eWith this kit, you can liberate yourself from reliance on the grid, harnessing ample energy from renewable sources. The 10KW system, equipped with a versatile 120V\/240V split inverter, offers remarkable power to run essential appliances and devices such as air conditioners, well pumps, refrigerators, TVs, workshops, and offices – all without the need for grid connectivity.\u003c\/p\u003e\n\u003cp\u003eMoreover, this system is primed for expansion. You can seamlessly integrate up to 6 identical inverters in single-phase (120VAC), split-phase (240VAC), or three-phase (208V) configurations, allowing for scalable power solutions tailored to your needs. Additionally, you have the flexibility to augment your setup with more batteries and solar panels as per your requirements.\u003c\/p\u003e\n\u003cp\u003eEmbrace the freedom of off-grid living and embark on an adventure powered by solar energy with the SGR-10K2M Off-Grid Solar Kit!\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ WHAT'S INCLUDED ============ --\u003e\n\u003csection class=\"esk-included\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/01_746e1dfa-4b06-4a22-8dfd-691787f62853.webp?v=1786885050\" alt=\"Sungold Power SGR-10K2M — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWhat is Included with the SGR-10K2M Solar Kit!\u003c\/h2\u003e\n\u003cul class=\"esk-included-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 X 5000 Watt 48V DC 120V\/240V Output with Wifi Model\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e12 X 450 Watt Monocrystalline Solar Panels\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e4 X 100AH 51.2V Lifepo4 Battery\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 Sets X 50 Feet, Solar Extension Cables-Inverter PV input\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e12 X Sets of Mounting Z-Brackets\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 X 200A DC Breaker\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 X 25A PV Breaker\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003ch2\u003eTechnical Highlights\u003c\/h2\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"currentColor\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003e10,000W, 20,000VA Peak\u003c\/h3\u003e\n\u003cp\u003eTwo 5,000W inverters paralleled, with double the combined power available briefly for motor starts and other high-draw moments.\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\"\u003e\u003cpath d=\"M4 7h13M13 3l4 4-4 4M20 17H7M11 21l-4-4 4-4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003eSplit-Phase 120V\/240V\u003c\/h3\u003e\n\u003cp\u003eRuns standard household circuits and larger 240V appliances from the same system.\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\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"4.2\"\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\u003ch3\u003eBuilt-In MPPT (Each Unit)\u003c\/h3\u003e\n\u003cp\u003eEach inverter has built-in MPPT solar charging, supporting up to 5,000W of solar input per unit at 99.9% tracking efficiency.\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\"\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\u003ch3\u003eExpandable to 6 Units\u003c\/h3\u003e\n\u003cp\u003eParallel up to 6 identical inverters in single-phase, split-phase, or three-phase configurations.\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\"\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\u003ch3\u003eBuilt-In WiFi Model\u003c\/h3\u003e\n\u003cp\u003eCheck system status and performance remotely via the mobile app, no extra hardware needed.\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\"\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\u003ch3\u003eCE \/ UL1741 Certified\u003c\/h3\u003e\n\u003cp\u003eMeets recognized international and North American safety standards for solar inverter equipment.\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\"\u003e\u003cpath d=\"M13 2 3 14h6l-1 8L18 10h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003eIP68 Waterproof Panels\u003c\/h3\u003e\n\u003cp\u003eJunction box rated for full submersion protection, backed by a 25-year linear product warranty.\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\"\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\u003ch3\u003e20.79% Panel Efficiency\u003c\/h3\u003e\n\u003cp\u003e182mm Grade-A monocrystalline cells for a higher conversion rate per panel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-rays\" style=\"background: var(--paper-2);\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\n    \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\n    \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\n    \u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\n    \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\n  \u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch2\u003eFull Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eSPH504880A Inverter\/Charger (×2, Paralleled)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eOutput (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated output power\u003c\/td\u003e\n\u003ctd\u003e5,000 W (5,000 VA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak power\u003c\/td\u003e\n\u003ctd\u003e10,000 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated output voltage\u003c\/td\u003e\n\u003ctd\u003e120 Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC-mode efficiency\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInverting-mode efficiency\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;90%\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; Charging (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated battery voltage\u003c\/td\u003e\n\u003ctd\u003e48 Vdc (44V minimum start)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. AC charging current\u003c\/td\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. solar charging current\u003c\/td\u003e\n\u003ctd\u003e0–80 A (settable)\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\u003ePV Input (Built-In MPPT, Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. PV output power\u003c\/td\u003e\n\u003ctd\u003e5,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. open circuit voltage\u003c\/td\u003e\n\u003ctd\u003e500 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT voltage range\u003c\/td\u003e\n\u003ctd\u003e120–450 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT tracking efficiency\u003c\/td\u003e\n\u003ctd\u003e99.9%\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; Environmental (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e25.6 lbs (11.6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e16.8 × 12.7 × 5.0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temp\u003c\/td\u003e\n\u003ctd\u003e-15°C to 55°C (5°F to 131°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e≤60 dB\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\u003eCertification \u0026amp; Communication\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety\u003c\/td\u003e\n\u003ctd\u003eCE (IEC62109-1), ETL (UL1741 \/ CSA C22.2 No.107.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eUSB \/ RS485 (WiFi\/GPRS) \/ Dry contact\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\"\u003e\u003ca href=\"\/products\/sungold-power-5120wh-48v-100ah-server-rack-lifepo4-battery-sg48100p\"\u003eSG48100P LiFePO₄ Battery (×4)\u003c\/a\u003e\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\u003eRated capacity\u003c\/td\u003e\n\u003ctd\u003e100 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated energy per unit\u003c\/td\u003e\n\u003ctd\u003e5.12 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombined (4 units)\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\u003eCharge \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard current\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. continuous current\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e≥7,000 @ 80% DOD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign life\u003c\/td\u003e\n\u003ctd\u003e15 years\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; Certification\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (each)\u003c\/td\u003e\n\u003ctd\u003e~95 lbs (43 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e16.5 × 22.8 × 5.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP20 (battery box)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eUL1973\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; Scaling\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging temp\u003c\/td\u003e\n\u003ctd\u003e32–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarging temp\u003c\/td\u003e\n\u003ctd\u003e-4–140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e63 batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRS232 \/ RS485 \/ CAN\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\"\u003e\u003ca href=\"\/products\/sungold-power-450w-monocrystalline-perc-solar-panels-kit\"\u003eSG-450WM Monocrystalline Panel (×12)\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eElectrical\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. power\u003c\/td\u003e\n\u003ctd\u003e450 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax-power voltage\u003c\/td\u003e\n\u003ctd\u003e34.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax-power current\u003c\/td\u003e\n\u003ctd\u003e13.16 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpen-circuit voltage\u003c\/td\u003e\n\u003ctd\u003e41.72 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule efficiency\u003c\/td\u003e\n\u003ctd\u003e20.79%\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\u003eBuild \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell type\u003c\/td\u003e\n\u003ctd\u003eMono 182×91mm (120 cells)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (each)\u003c\/td\u003e\n\u003ctd\u003e54.0 lbs (24.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e75.16 × 44.65 × 1.38 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJunction box\u003c\/td\u003e\n\u003ctd\u003eIP68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25yr linear product + 10yr workmanship\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!-- ============ WHAT IT CAN POWER ============ --\u003e\n\u003csection class=\"esk-power\"\u003e\n\u003ch2\u003eWhat It Can Power\u003c\/h2\u003e\n\u003cp style=\"max-width: 62ch; font-size: 14.5px; color: var(--muted) !important; margin-bottom: 18px !important;\"\u003eThis 10KW system offers remarkable power to run essential appliances and devices — all without the need for grid connectivity, per the manufacturer's own description.\u003c\/p\u003e\n\u003cdiv class=\"esk-power-grid\"\u003e\n\u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eAir Conditioner\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eWell Pump\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eRefrigerator\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eTV\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eWorkshop \/ Office\u003c\/span\u003e\n\u003c\/div\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\/SGR-10K2M-A_06.webp?v=1786885068\" alt=\"Sungold Power SGR-10K2M solar kit — product photo\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAdditional Documentation\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0323\/4090\/2025\/files\/SPH504880A-Manual_sungoldpower.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 5000 Watt Pure Sine Wave Inverter \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0323\/4090\/2025\/files\/219551-48100P.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 LifePo4 5.12KWH Lithium Battery \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/182Mono450W-SG-450WM-20231129.pdf?v=1701692818\" 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 450 Watts Solar Panels \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy are there two inverters instead of one?\u003c\/summary\u003e\n\u003cp\u003eTwo 5,000W SPH504880A inverters are paralleled to reach the system's combined 10,000W rating. Up to 6 identical units can be paralleled in single-phase, split-phase, or three-phase configurations.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this inverter have built-in solar charge controllers?\u003c\/summary\u003e\n\u003cp\u003eYes — each SPH504880A has built-in MPPT solar charging, supporting up to 5,000W of solar input per unit at 99.9% tracking efficiency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the actual usable battery capacity?\u003c\/summary\u003e\n\u003cp\u003e20.48kWh combined from four 5.12kWh batteries, each rated for at least 7,000 cycles to 80% depth of discharge.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I add more solar panels later?\u003c\/summary\u003e\n\u003cp\u003eYes — you have the flexibility to augment your setup with more batteries and solar panels as per your requirements, per the manufacturer's own product description.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install this?\u003c\/summary\u003e\n\u003cp\u003eGiven the scale of this system — two paralleled 5,000W inverters and a 20.48kWh battery bank — installation should be handled by a qualified, licensed electrician familiar with your local code.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp\u003eSolar panels backed by a \u003cstrong\u003e25-year linear product warranty\u003c\/strong\u003e plus a 10-year workmanship warranty.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Sungold Power","offers":[{"title":"Default Title","offer_id":40627201572919,"sku":"SGR-10K2M","price":9330.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/SGR-10K2M_8e39b01e-1b83-4904-80ff-01c786b29b2b.webp?v=1786885081"},{"product_id":"sungold-power-18000w-off-grid-solar-kit-48vdc-120v-240v-lifepo4-30-72kwh-battery-20x415w-solar-panels-sgr-18k20e","title":"Sungold Power 18,000W Off‑Grid Solar Kit 48VDC 120V\/240V LiFePO₄ 30.72 kWh Battery \u0026 20×415W Solar Panels SGR‑18K20E","description":"\u003cdiv class=\"esk-pd esk-pd-a esk-sgr18k20e-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEco Solar Kits · Sungold Power · SGR-18K20E\u003c\/p\u003e\n\u003ch2\u003eSungold Power 18,000W Off‑Grid Solar Kit 48VDC 120V\/240V LiFePO₄ 30.72 kWh Battery \u0026amp; 20×415W Solar Panels SGR‑18K20E\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA complete off-grid solar system — 18,000W split-phase inverter, 30.72kWh of LiFePO₄ battery storage, and twenty 415W monocrystalline panels — sized for a large home or light commercial use.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\n    \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\n    \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\n    \u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\n    \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\n  \u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e18,000W\u003c\/span\u003e\u003cspan class=\"label\"\u003eInverter 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=\"label\"\u003eBattery Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e20×415W\u003c\/span\u003e\u003cspan class=\"label\"\u003eSolar Panels\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e120V\/240V\u003c\/span\u003e\u003cspan class=\"label\"\u003eSplit-Phase Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ OVERVIEW ============ --\u003e\n\u003csection class=\"esk-overview\"\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eIntroducing our comprehensive off-grid solar kit, your ultimate solution for powering your home, cabin, or commercial solar system completely off-grid. This kit includes everything you need, featuring 20 high-performance 415W solar panels, a sizable 20.48kWh battery, an impressive 18,000W solar inverter, and two sets of solar cables and brackets.\u003c\/p\u003e\n\u003cp\u003eWith an estimated daily output of around 30kWh based on 4 hours of sunlight, this kit offers reliable energy production for your off-grid lifestyle. Boasting an 18kW split-phase (120\/240V) output, it delivers abundant power to operate a wide range of appliances and devices, from air conditioners and well pumps to lights, refrigerators, TVs, workshops, offices, and even light commercial and industrial applications.\u003c\/p\u003e\n\u003cp\u003eFurthermore, this kit provides exceptional value for its features and is easily expandable, allowing you to seamlessly integrate additional batteries and solar panels in the future as your energy needs grow. Experience affordability, reliability, and scalability with our complete off-grid solar kit.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ WHAT'S INCLUDED ============ --\u003e\n\u003csection class=\"esk-included\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/18K20E-A_01_b30dda46-4b25-4246-bbca-1fca821acf24.webp?v=1786643337\" alt=\"A modern house at sunset features 20 solar panels on the roof, with text overlay highlighting the Sungold Power 18,000W Off‑Grid Solar Kit. This comprehensive kit includes an advanced inverter, a high-capacity 48VDC LiFePO₄ 30.72 kWh battery system shown conveniently next to the garage, charge controllers, and twenty 415W solar panels—ideal for homeowners seeking a reliable off-grid power solution with Sungold Power’s cutting-edge lithium technology.\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWhat is Included with the SGR-18K20E Solar Kit\u003c\/h2\u003e\n\u003cul class=\"esk-included-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e1 X 18000 Watt 48V DC 120V\/240V AC Output\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e20 X 415 Watt Monocrystalline Solar Panels\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 X 100A Mppt Solar Charge Controller\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e6 X 100AH 51.2V Lifepo4 Battery\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e1 X Enclosed Battery Cabinet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 Sets X 50 Feet, Solar Extension Cables-Inverter PV input\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 Sets Cable Between Battery and MPPT Controller\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e20 Sets of Mounting Z-Brackets\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e1 X 400A DC Breaker\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 X 50A PV Breaker\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003ch2\u003eTechnical Highlights\u003c\/h2\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"currentColor\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003e18,000W, 54,000W Surge\u003c\/h3\u003e\n\u003cp\u003eRated continuous output with a 20-second surge rating triple the continuous power for motor starts and other high-draw moments.\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\"\u003e\u003cpath d=\"M4 7h13M13 3l4 4-4 4M20 17H7M11 21l-4-4 4-4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003eSplit-Phase 120V\/240V\u003c\/h3\u003e\n\u003cp\u003eRuns standard household circuits and larger 240V appliances from the same system.\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\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"4.2\"\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\u003ch3\u003eDual 100A MPPT Controllers\u003c\/h3\u003e\n\u003cp\u003eTwo external solar charge controllers included, giving room to expand well beyond the 8,300W (20×415W) of panels included here.\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\"\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\u003ch3\u003eBluetooth-Enabled Controllers\u003c\/h3\u003e\n\u003cp\u003eMonitor charge controller status and performance via Bluetooth, without needing to be on-site.\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\"\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\u003ch3\u003eEasily Expandable\u003c\/h3\u003e\n\u003cp\u003eAdd more batteries and solar panels in the future as your energy needs grow.\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\"\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\u003ch3\u003e\u0026gt;95% Line-Mode Efficiency\u003c\/h3\u003e\n\u003cp\u003eMinimal energy loss whether running on battery, solar, or passthrough grid 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\"\u003e\u003cpath d=\"M13 2 3 14h6l-1 8L18 10h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003eIP68 Waterproof Panels\u003c\/h3\u003e\n\u003cp\u003eJunction box rated for full submersion protection, backed by a 25-year linear product warranty.\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\"\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\u003ch3\u003e21.25% Panel Efficiency\u003c\/h3\u003e\n\u003cp\u003e182mm Grade-A monocrystalline cells for a higher conversion rate per panel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-rays\" style=\"background: var(--paper-2);\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\n    \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\n    \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\n    \u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\n    \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\n  \u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch2\u003eFull Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003e\u003ca href=\"\/products\/sungold-power-18000w-48v-split-phase-pure-sine-wave-inverter-charger\"\u003eLF-PV 18KW Off-Grid Inverter\/Charger (×1)\u003c\/a\u003e\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 power\u003c\/td\u003e\n\u003ctd\u003e18,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge rating (20 sec)\u003c\/td\u003e\n\u003ctd\u003e54,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated output voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaveform\u003c\/td\u003e\n\u003ctd\u003ePure sine wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput frequency\u003c\/td\u003e\n\u003ctd\u003e50Hz ± 0.3Hz \/ 60Hz ± 0.3Hz\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\u003eEfficiency\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal (peak) efficiency\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;88%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine-mode efficiency\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;95%\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\u003e\u003ca href=\"\/products\/sungold-power-5120wh-48v-100ah-server-rack-lifepo4-battery-sg48100p\"\u003eBattery \u0026amp; Charging\u003c\/a\u003e\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal DC input voltage\u003c\/td\u003e\n\u003ctd\u003e48 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharger breaker rating\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. charge power rate\u003c\/td\u003e\n\u003ctd\u003e1\/3 rated power\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\u003eMounting \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eWall mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard warranty\u003c\/td\u003e\n\u003ctd\u003e1 year\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\"\u003e100A MPPT Solar Charge Controller (×2)\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eInput \u0026amp; Output\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated charge current\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. PV input voltage\u003c\/td\u003e\n\u003ctd\u003e250 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e12V–48V, auto-detect\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; Connectivity\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e12.5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMonitoring\u003c\/td\u003e\n\u003ctd\u003eBluetooth\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\"\u003eCoreX 5 Pro Battery Pack (×6, In Enclosed Cabinet)\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\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003e1P16S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated capacity\u003c\/td\u003e\n\u003ctd\u003e100 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated voltage\u003c\/td\u003e\n\u003ctd\u003e51.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated energy per unit\u003c\/td\u003e\n\u003ctd\u003e5.12 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombined (6 units)\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\u003eCharge \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage range\u003c\/td\u003e\n\u003ctd\u003e43.2–56.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard charge\/discharge current\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. charge current\u003c\/td\u003e\n\u003ctd\u003e95 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. discharge 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\u003ePhysical\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (each)\u003c\/td\u003e\n\u003ctd\u003e94.8 lbs (43 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e20.08 × 17.4 × 5.14 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP20\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; Scaling\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging temp\u003c\/td\u003e\n\u003ctd\u003e39.2–131°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarging temp\u003c\/td\u003e\n\u003ctd\u003e-4–131°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e15 battery packs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CAN \/ RS232 \/ Bluetooth \/ WiFi\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\"\u003e\u003ca href=\"\/products\/sungold-power-415w-48v-mono-black-perc-solar-panels-kit\"\u003eSG-415WM Monocrystalline Panel (×20)\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eElectrical\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. power\u003c\/td\u003e\n\u003ctd\u003e415 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax-power voltage\u003c\/td\u003e\n\u003ctd\u003e31.61 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax-power current\u003c\/td\u003e\n\u003ctd\u003e13.13 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpen-circuit voltage\u003c\/td\u003e\n\u003ctd\u003e38.82 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule efficiency\u003c\/td\u003e\n\u003ctd\u003e21.25%\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\u003eBuild \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell type\u003c\/td\u003e\n\u003ctd\u003eMono 182×91mm (108 cells)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (each)\u003c\/td\u003e\n\u003ctd\u003e45.1 lbs (20.45 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e67.9 × 44.7 × 1.4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJunction box\u003c\/td\u003e\n\u003ctd\u003eIP68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25yr linear product + 10yr workmanship\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!-- ============ WHAT IT CAN POWER ============ --\u003e\n\u003csection class=\"esk-power\"\u003e\n\u003ch2\u003eWhat It Can Power\u003c\/h2\u003e\n\u003cp style=\"max-width: 62ch; font-size: 14.5px; color: var(--muted) !important; margin-bottom: 18px !important;\"\u003eWith about 4 hours of direct sunlight, the panel array produces roughly \u003cstrong style=\"color: var(--ink) !important;\"\u003e30kWh per day\u003c\/strong\u003e — enough for air conditioners, well pumps, lights, refrigerators, TVs, workshops, offices, and light commercial or industrial applications, per the manufacturer's own description.\u003c\/p\u003e\n\u003cdiv class=\"esk-power-grid\"\u003e\n\u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eAir Conditioner\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eWell Pump\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eLights\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eRefrigerator\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eTV\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eWorkshop \/ Office\u003c\/span\u003e\n\u003c\/div\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\/SGR-18K20E_A_07_6f8c46a1-a600-4836-972a-e96f569329b5.webp?v=1786643360\" alt=\"Diagram illustrating a house powered by the Sungold Power 18,000W Off‑Grid Solar Kit (Model: SGR‑18K20E), featuring key components such as 20×415W solar panels installed on the roof, an inverter, LiFePO₄ batteries with a total capacity of 30.72 kWh, charge controller, and essential household appliances including a refrigerator, laptop, lighting fixtures, fan, and washing machine. The layout is accompanied by clear CSS code and styling details for enhanced visual clarity—please note this is a schematic diagram for reference only and not an actual product description. Brand: Sungold Power.\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAdditional Documentation\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/LF-PV_Manual_2022.pdf?v=1648807280\" 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 18000W Solar Inverter \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/CoreX_5_Pro_User_Manual.pdf?v=1785379662\" 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 CoreX 5 Pro 5.12KWH Lithium Battery \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/182Mono415W-SG-415WM-20231129.pdf?v=1701692796\" 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 415 Watts Solar Panels \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0323\/4090\/2025\/files\/User_Manual_MPPT_SGC4825100A-20231016.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 100A MPPT Solar Controller \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0323\/4090\/2025\/files\/wiring_diagram_SGR-18K20E_20241024.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 Wiring Diagram: SGR-18K20E \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this inverter have built-in solar charge controllers?\u003c\/summary\u003e\n\u003cp\u003eNo — this kit pairs the inverter with two separate 100A MPPT solar charge controllers, rather than a controller built into the inverter itself.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the actual usable battery capacity?\u003c\/summary\u003e\n\u003cp\u003e30.72kWh combined from six 5.12kWh CoreX 5 Pro battery packs in the included enclosed cabinet, each with real-time SOC\/SOH monitoring via Bluetooth or WiFi.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre the batteries stored in a rack or individually?\u003c\/summary\u003e\n\u003cp\u003eThis kit includes an enclosed battery cabinet sized for all six 100AH batteries, rather than mounting them individually.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I add more solar panels later?\u003c\/summary\u003e\n\u003cp\u003eYes — this system is easily expandable, letting you add more batteries and solar panels as your energy needs grow, per the manufacturer's own product description.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install this?\u003c\/summary\u003e\n\u003cp\u003eGiven the scale of this system — an 18,000W inverter, dual charge controllers, and a 30.72kWh battery bank — installation should be handled by a qualified, licensed electrician familiar with your local code.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp\u003eSolar panels backed by a \u003cstrong\u003e25-year linear product warranty\u003c\/strong\u003e plus a 10-year workmanship warranty. Inverter is covered by a 1-year warranty.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Sungold Power","offers":[{"title":"Default Title","offer_id":40633554993207,"sku":"SGR-18K20E","price":16930.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/SGR-18K20E_e5ad0a18-9315-4f87-84ba-d02ef8e1d35b.webp?v=1786643187"},{"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\"\u003e\u003ca href=\"\/products\/eg4-12kw-18kpv-hybrid-inverter\"\u003eEG4 18kPV Inverter (Each Unit)\u003c\/a\u003e\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":"nova-10-000w-hybrid-inverter-solar-kit-with-61-44kwh-server-lithium-battery-storage","title":"NOVA 10,000W Hybrid Inverter Kit with 61.44kWH Server Lithium Battery Storage","description":"\u003cdiv class=\"esk-pd esk-pd-a rs-srx12-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V Hybrid Inverter + Battery Kit · 1× Inverter \/ 12× Battery · No Panel\u003c\/p\u003e\n\u003ch2\u003e12,000W of Hybrid Power With 61.44kWh of Battery Storage\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis inverter-and-battery kit pairs a 12,000W NOVA 12K hybrid inverter with twelve ALPHA 5 PRO server rack batteries — 61.44kWh of storage on a 48V system — sold without solar panels for pairing with panels you already own or plan to add separately.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e61.44kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Bank\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eMax PV Input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e10,000W\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\"\u003e7,000+\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eBattery Cycle Life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 960 22\" preserveaspectratio=\"none\"\u003e\n    \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\n    \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\n  \u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ WHAT'S INCLUDED ============ --\u003e\n\u003csection class=\"esk-included\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eKit Contents\u003c\/span\u003e\n\u003ch2\u003eWhat's In This Kit\u003c\/h2\u003e\n\u003cdiv class=\"esk-included-cards\"\u003e\n\u003cdiv class=\"esk-inc-card\"\u003e\n\u003cspan class=\"qty\"\u003eQty 1\u003c\/span\u003e\n\u003ch4\u003eNOVA 12K PV Hybrid Inverter\u003c\/h4\u003e\n\u003cp\u003e12,000W PV input, 10,000W continuous AC output, 120\/240V split-phase, dual MPPT. \u003cspan class=\"sku\"\u003eRS-H12K\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-inc-card\"\u003e\n\u003cspan class=\"qty\"\u003eQty 12\u003c\/span\u003e\n\u003ch4\u003eALPHA 5 PRO Server Rack Battery\u003c\/h4\u003e\n\u003cp\u003e51.2V 100Ah (5,120Wh) each — 61.44kWh combined, rated for 7,000+ cycles. \u003cspan class=\"sku\"\u003eRS-B5121P\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul class=\"esk-accessory-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eFree Battery Racks\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- ============ NO PANEL NOTE ============ --\u003e\n\u003cdiv class=\"esk-panel-note\"\u003e\n\u003cp\u003eThis kit does not include solar panels. It's built for pairing with an existing array or panels purchased separately — the NOVA 12K accepts up to 12,000W of PV input across its dual MPPT trackers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eHighlights\u003c\/span\u003e\n\u003ch2\u003eWhat Makes This Kit Work\u003c\/h2\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\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003e12kW split-phase hybrid inverter\u003c\/h3\u003e\n\u003cp\u003e10,000W continuous output at 120\/240V, with dual MPPT trackers and support for solar, battery, utility, and generator input.\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\"\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\u003ch3\u003e61.44kWh of rack-mounted storage\u003c\/h3\u003e\n\u003cp\u003eTwelve ALPHA 5 PRO batteries provide high-capacity energy storage and extended backup power on a 48V system.\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\"\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\u003ch3\u003eWiFi and app monitoring throughout\u003c\/h3\u003e\n\u003cp\u003eBuilt-in WiFi on the inverter and Bluetooth\/WiFi app monitoring on each battery keep the whole system visible from a phone.\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\"\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\u003ch3\u003eProfessionally matched components\u003c\/h3\u003e\n\u003cp\u003eInverter and battery counts are pre-matched, with two battery racks included to simplify installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ HEATING THRESHOLDS ============ --\u003e\n\u003csection class=\"esk-heat-strip\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eCold-Weather Protection\u003c\/span\u003e\n\u003ch2\u003eIntegrated 150W Subzero Heater (Per Battery)\u003c\/h2\u003e\n\u003cdiv class=\"esk-heat-grid\"\u003e\n\u003cdiv class=\"esk-heat-item\"\u003e\n\u003cspan class=\"temp\"\u003e\u0026lt; 32°F \/ 0°C\u003c\/span\u003e \u003cspan class=\"desc\"\u003eCharging locked out\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-heat-item\"\u003e\n\u003cspan class=\"temp\"\u003e\u0026lt; 41°F \/ 5°C\u003c\/span\u003e \u003cspan class=\"desc\"\u003eInternal heating starts\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-heat-item\"\u003e\n\u003cspan class=\"temp\"\u003e\u0026gt; 50°F \/ 10°C\u003c\/span\u003e \u003cspan class=\"desc\"\u003eInternal heating stops\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\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\u003ch2\u003eFull Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003e\u003ca href=\"\/products\/rich-solar-nova-12k-split-phase-12-000-watt-48v-hybrid-inverter\"\u003eNOVA 12K Hybrid Inverter\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"esk-specs-block-sub\"\u003eRS-H12K · ×1 included\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003ePV Input\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum PV input power\u003c\/td\u003e\n\u003ctd\u003e12,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum DC voltage\u003c\/td\u003e\n\u003ctd\u003e600 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e125 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT voltage range\u003c\/td\u003e\n\u003ctd\u003e120–550 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT trackers \/ max. current\u003c\/td\u003e\n\u003ctd\u003e2 \/ 18 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 Output\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated output power\u003c\/td\u003e\n\u003ctd\u003e10,000 VA \/ 10,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal output voltage\u003c\/td\u003e\n\u003ctd\u003e120V (P-N) \/ 208V \/ 240V (P-P)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage range\u003c\/td\u003e\n\u003ctd\u003e105.5–132 Vac per phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal output current\u003c\/td\u003e\n\u003ctd\u003e41.5 A per phase\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; Charging\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery DC voltage range\u003c\/td\u003e\n\u003ctd\u003e40–62 Vdc (48V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. solar charging current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. AC charging current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. charging 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\u003ePhysical \u0026amp; Certification\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temp\u003c\/td\u003e\n\u003ctd\u003e-13°F to 140°F (\u0026gt;113°F derated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRS232 \/ RS485 \/ WiFi \/ USB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e8.5 × 20.3 × 28.1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e99.2 lbs (45 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eUL1741SA\/SB, CSA 22.2.107.1, CEC\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\"\u003e\u003ca href=\"\/products\/alpha-5-pro-5-12kwh-48v-51-2v-100ah-lifepo4-server-rack-lithium-battery-ul1973-ul9540a-10-year-warranty\"\u003eALPHA 5 PRO Server Rack Battery\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"esk-specs-block-sub\"\u003eRS-B5121P · ×12 included\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\u003eNominal capacity\u003c\/td\u003e\n\u003ctd\u003e100 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal energy\u003c\/td\u003e\n\u003ctd\u003e5,120 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombined (12 units)\u003c\/td\u003e\n\u003ctd\u003e61,440 Wh (61.44 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\u003eCharging \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage\u003c\/td\u003e\n\u003ctd\u003e56 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarging cutoff voltage\u003c\/td\u003e\n\u003ctd\u003e44.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. charging current\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. discharge 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\u003eMonitoring \u0026amp; Physical (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWireless monitoring\u003c\/td\u003e\n\u003ctd\u003eWiFi + Bluetooth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e17.7 × 17.8 × 5.2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~100 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection class\u003c\/td\u003e\n\u003ctd\u003eIP21\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\u003eCertification \u0026amp; Scaling\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e7,000+ deep cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eUL1973, UL9540A, FCC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. expansion\u003c\/td\u003e\n\u003ctd\u003e30 units in parallel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ RS232 \/ CAN\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\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003eCharging Current by Temperature (Per Battery)\u003c\/p\u003e\n\u003ctable class=\"esk-derate-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Temperature\u003c\/th\u003e\n\u003cth\u003eCharge Rate\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e32°F–50°F\u003c\/td\u003e\n\u003ctd\u003e0.1C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50°F–68°F\u003c\/td\u003e\n\u003ctd\u003e0.2C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e68°F–77°F\u003c\/td\u003e\n\u003ctd\u003e0.5C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e77°F–113°F\u003c\/td\u003e\n\u003ctd\u003e1C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e113°F–131°F\u003c\/td\u003e\n\u003ctd\u003e0.3C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e131°F–140°F\u003c\/td\u003e\n\u003ctd\u003e0.2C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ USE CASES ============ --\u003e\n\u003csection class=\"esk-usecases\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eUse Cases\u003c\/span\u003e\n\u003ch2\u003eWhere It Fits\u003c\/h2\u003e\n\u003cdiv class=\"esk-usecase-grid\"\u003e\n\u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eHomes\u003c\/span\u003e \u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eCabins\u003c\/span\u003e \u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eFarms\u003c\/span\u003e \u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eCommercial Buildings\u003c\/span\u003e \u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eWhole-Home Backup\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy doesn't this kit include solar panels?\u003c\/summary\u003e\n\u003cp\u003eIt's designed for customers who already have panels or want to select them separately. The NOVA 12K supports up to 12,000W of PV input across two MPPT trackers, so panels can be added to match your site.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much usable battery capacity does this kit have?\u003c\/summary\u003e\n\u003cp\u003e61.44kWh combined from twelve 5,120Wh ALPHA 5 PRO batteries, each rated for 7,000+ deep cycles and expandable up to 30 units in parallel.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan the batteries charge in freezing temperatures?\u003c\/summary\u003e\n\u003cp\u003eEach ALPHA 5 PRO has an integrated 150W heater that activates automatically below 41°F and shuts off once the battery warms past 50°F; charging locks out entirely below 32°F.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the inverter support generator or grid input?\u003c\/summary\u003e\n\u003cp\u003eYes — the NOVA 12K accepts solar, battery, utility, and generator input, with a second input power source supported for generator compatibility.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install this?\u003c\/summary\u003e\n\u003cp\u003eGiven the scale of this system — a 12,000W hybrid inverter and a 61.44kWh battery bank — installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eDownloads\u003c\/span\u003e\n\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-group\"\u003e\n\u003cp class=\"esk-download-group-title\"\u003eFull Specification\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0058\/2769\/0553\/files\/NOVA_12K-Specification-Premium-250521_d8a9603a-fa3f-451e-80cc-2122f6745b88.pdf?v=1749721234\" 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 NOVA 12K Inverter \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0058\/2769\/0553\/files\/Alpha_5_PRO-Specification-250122.pdf?v=1737524831\" 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 ALPHA 5 PRO Battery \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-download-group\"\u003e\n\u003cp class=\"esk-download-group-title\"\u003eUser Manual\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0058\/2769\/0553\/files\/NOVA_12K-Manual-20250507.pdf?v=1749721234\" 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 NOVA 12K Inverter \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0058\/2769\/0553\/files\/ALPHA_5_PRO_MANUAL_241128_compressed.pdf?v=1732780394\" 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 ALPHA 5 PRO Battery \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\u003eBatteries backed by a \u003cstrong\u003e10-year warranty\u003c\/strong\u003e. See Rich Solar's full warranty page for inverter and battery coverage terms.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Rich Solar","offers":[{"title":"Default Title","offer_id":41243932262455,"sku":"SRx12-H12Kx1-NO","price":23999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/NOVA_12K_PV_Hybrid_Inverter_Solar_Kit_61.44kWH_Server_Lithium_Battery_KIT-SR0002.webp?v=1746931912"},{"product_id":"complete-off-grid-solar-kit-with-13-000w-120-240v-power-output-and-20-48kwh-48vdc-battery-storage","title":"Complete Off-Grid Solar Kit with 13,000W 120\/240V Power Output and 20.48kWh 48VDC Battery Storage","description":"\u003cdiv class=\"esk-pd esk-pd-d rs-cbk1301a-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003e48V Complete Off-Grid System · 30× Panel \/ 4× Battery \/ 2× Inverter\u003c\/p\u003e\n\u003ch2\u003e13,000W of Whole-Property Power With 20.48kWh of Battery Storage\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eThis complete off-grid system pairs a 12.3kW array of thirty MEGA 410 panels with a 20.48kWh ALPHA 5 PRO battery bank and two paralleled 6,500W hybrid inverters — producing roughly 44.3kWh per day, built for homes, cabins, farms, and commercial buildings that need to run fully off the grid.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e12.3kW\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eSolar Array\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\"\u003eBattery Bank\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e13,000W\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eInverter Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e~44.3kWh\u003c\/span\u003e\u003cspan class=\"lbl\"\u003eDaily Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 960 22\" preserveaspectratio=\"none\"\u003e\n    \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\n    \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\n  \u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ WHAT'S INCLUDED ============ --\u003e\n\u003csection class=\"esk-included\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eKit Contents\u003c\/span\u003e\n\u003ch2\u003eWhat's In This Kit\u003c\/h2\u003e\n\u003cdiv class=\"esk-included-cards\"\u003e\n\u003cdiv class=\"esk-inc-card\"\u003e\n\u003cspan class=\"qty\"\u003eQty 30\u003c\/span\u003e\n\u003ch4\u003eMEGA 410 Solar Panel\u003c\/h4\u003e\n\u003cp\u003e410W each, 24V, 10-busbar Mono PERC cells — 12.3kW combined array. \u003cspan class=\"sku\"\u003eRS-M410\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-inc-card\"\u003e\n\u003cspan class=\"qty\"\u003eQty 4\u003c\/span\u003e\n\u003ch4\u003eALPHA 5 PRO Server Rack Battery\u003c\/h4\u003e\n\u003cp\u003e51.2V 100Ah (5,120Wh) each — 20.48kWh combined, rated for 7,000 cycles. \u003cspan class=\"sku\"\u003eRS-B5121P\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-inc-card\"\u003e\n\u003cspan class=\"qty\"\u003eQty 2\u003c\/span\u003e\n\u003ch4\u003eNOVA 6548 Hybrid Inverter\u003c\/h4\u003e\n\u003cp\u003e6,500W each, paralleled for 13,000W continuous \/ 26,000W surge output. \u003cspan class=\"sku\"\u003eRS-H6548\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul class=\"esk-accessory-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003eSolar PV DC Quick Disconnect Switches\u003cspan class=\"sku\"\u003eRS-i4\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e2×\u003c\/span\u003e\u003cspan\u003e600 AMP Busbars\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e4×\u003c\/span\u003e\u003cspan\u003e4ft 2\/0 Gauge AWG Wire Sets, 3\/8\"\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e8×\u003c\/span\u003e\u003cspan\u003e10AWG 50ft Solar Extension Cables\u003cspan class=\"sku\"\u003eRS-50102\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e4×\u003c\/span\u003e\u003cspan\u003e10AWG 30ft Solar Extension Cables\u003cspan class=\"sku\"\u003eRS-30102-T2\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"qty\"\u003e1×\u003c\/span\u003e\u003cspan\u003eFree Battery Rack\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eHighlights\u003c\/span\u003e\n\u003ch2\u003eWhat Makes This System Work\u003c\/h2\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\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003e~44.3kWh of solar per day\u003c\/h3\u003e\n\u003cp\u003eThe 12.3kW array produces roughly 44.3kWh daily under 4 peak sun hours, sized for real whole-property daily loads.\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\"\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\u003ch3\u003e20.48kWh of storage\u003c\/h3\u003e\n\u003cp\u003eFour rack-mounted ALPHA 5 PRO batteries provide dependable overnight power and backup during outages.\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\"\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\u003ch3\u003e13,000W hybrid inverter system\u003c\/h3\u003e\n\u003cp\u003eTwo paralleled hybrid inverters with dual 120A MPPT charge controllers each, supporting solar, battery, utility, and generator input.\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\"\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\u003ch3\u003eProfessionally matched components\u003c\/h3\u003e\n\u003cp\u003ePanel, battery, and inverter counts are pre-matched to simplify system design, installation, and long-term operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\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\u003ch2\u003eFull Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003e\u003ca href=\"\/products\/rich-solar-mega-410-watt-monocrystalline-solar-panels-pallets-only\"\u003eMEGA 410 Solar Panel\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"esk-specs-block-sub\"\u003eRS-M410 · ×30 included\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eElectrical\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. power\u003c\/td\u003e\n\u003ctd\u003e410 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax-power voltage\u003c\/td\u003e\n\u003ctd\u003e31.3 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax-power current\u003c\/td\u003e\n\u003ctd\u003e13.1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpen-circuit voltage\u003c\/td\u003e\n\u003ctd\u003e37.5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort-circuit current\u003c\/td\u003e\n\u003ctd\u003e13.8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. system voltage\u003c\/td\u003e\n\u003ctd\u003e1500 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. series fuse rating\u003c\/td\u003e\n\u003ctd\u003e25 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\u003eBuild \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell configuration\u003c\/td\u003e\n\u003ctd\u003e10-busbar, Mono PERC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (each)\u003c\/td\u003e\n\u003ctd\u003e45.2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e67.8 × 44.7 × 1.2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temp\u003c\/td\u003e\n\u003ctd\u003e-40°F to 185°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput warranty\u003c\/td\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorkmanship warranty\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\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003e\u003ca href=\"\/products\/alpha-5-pro-5-12kwh-48v-51-2v-100ah-lifepo4-server-rack-lithium-battery-ul1973-ul9540a-10-year-warranty\"\u003eALPHA 5 PRO Server Rack Battery\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"esk-specs-block-sub\"\u003eRS-B5121P · ×4 included\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\u003eNominal capacity\u003c\/td\u003e\n\u003ctd\u003e100 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum capacity\u003c\/td\u003e\n\u003ctd\u003e99.5 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal energy\u003c\/td\u003e\n\u003ctd\u003e5,120 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombined (4 units)\u003c\/td\u003e\n\u003ctd\u003e20,480 Wh (20.48 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\u003eCharging \u0026amp; Discharge\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage\u003c\/td\u003e\n\u003ctd\u003e56 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarging cutoff voltage\u003c\/td\u003e\n\u003ctd\u003e44.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. charging current\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous charge current\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. discharge 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\u003ePhysical (Per Battery)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e17.7 × 17.8 × 5.2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e99.2 lbs\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\u003eServer Rack\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e27.5 × 27.5 × 44.1 in (excl. wheels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e196.2 lbs\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\u003eCertification \u0026amp; Scaling\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e7,000 deep cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eUL1973, UL9540A, FCC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. expansion\u003c\/td\u003e\n\u003ctd\u003e15 units in parallel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ RS232 \/ CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years (manufacturer defect)\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\u003eTemperature Performance\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge temperature\u003c\/td\u003e\n\u003ctd\u003e-4°F to 149°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temp (1 month)\u003c\/td\u003e\n\u003ctd\u003e-4°F to 113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temp (6 months)\u003c\/td\u003e\n\u003ctd\u003e32°F to 95°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\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003e\u003ca href=\"\/products\/alpha-5-pro-5-12kwh-48v-51-2v-100ah-lifepo4-server-rack-lithium-battery-ul1973-ul9540a-10-year-warranty\"\u003eCharging Current by Temperature (ALPHA 5 PRO)\u003c\/a\u003e\u003c\/p\u003e\n\u003ctable class=\"esk-derate-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Temperature\u003c\/th\u003e\n\u003cth\u003eCharge Rate\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e32°F–50°F\u003c\/td\u003e\n\u003ctd\u003e0.1C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50°F–68°F\u003c\/td\u003e\n\u003ctd\u003e0.2C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e68°F–77°F\u003c\/td\u003e\n\u003ctd\u003e0.5C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e77°F–113°F\u003c\/td\u003e\n\u003ctd\u003e1C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e113°F–131°F\u003c\/td\u003e\n\u003ctd\u003e0.3C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e131°F–140°F\u003c\/td\u003e\n\u003ctd\u003e0.2C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003e\u003ca href=\"\/products\/rich-solar-6500-watt-48-volt-off-grid-hybrid-solar-inverter\"\u003eNOVA 6548 Hybrid Inverter\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"esk-specs-block-sub\"\u003eRS-H6548 · ×2 included, paralleled\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eOutput (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated power\u003c\/td\u003e\n\u003ctd\u003e6,500 VA \/ 6,500 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge power\u003c\/td\u003e\n\u003ctd\u003e2× rated (5 sec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC voltage regulation\u003c\/td\u003e\n\u003ctd\u003e120 Vac ± 5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak efficiency\u003c\/td\u003e\n\u003ctd\u003e91%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaveform\u003c\/td\u003e\n\u003ctd\u003ePure sine wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e6 units\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 (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage\u003c\/td\u003e\n\u003ctd\u003e48 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloat charging voltage\u003c\/td\u003e\n\u003ctd\u003e54 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvercharge protection\u003c\/td\u003e\n\u003ctd\u003e66 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\u003eSolar \u0026amp; AC Charging (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar charger type\u003c\/td\u003e\n\u003ctd\u003eDual MPPT\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 × 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT voltage range\u003c\/td\u003e\n\u003ctd\u003e90–450 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. open circuit voltage\u003c\/td\u003e\n\u003ctd\u003e550 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. solar\/AC\/combined charge\u003c\/td\u003e\n\u003ctd\u003e120 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; Environmental (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e5.8 × 17.0 × 21.8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e40.6 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temp\u003c\/td\u003e\n\u003ctd\u003e-14°F to 104°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eUSB \/ RS232 \/ RS485 \/ WiFi \/ Dry-contact\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\u003eCertification \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety\u003c\/td\u003e\n\u003ctd\u003eUL 1741 by TUV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3 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\u003c!-- ============ OTHER CONFIGURATIONS ============ --\u003e\n\u003csection class=\"esk-other-configs\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eCompare\u003c\/span\u003e\n\u003ch2\u003eOther Panel Configurations Available\u003c\/h2\u003e\n\u003cp\u003eThis same 13,000W battery-and-inverter platform is sold with a choice of panel arrays. The row highlighted below is the configuration this page describes.\u003c\/p\u003e\n\u003ctable class=\"esk-config-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePanel Option\u003c\/th\u003e\n\u003cth\u003ePanel Count\u003c\/th\u003e\n\u003cth\u003eArray Total\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMEGA 335\u003c\/td\u003e\n\u003ctd\u003e38× 335W\u003c\/td\u003e\n\u003ctd\u003e12.7 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMEGA 400\u003c\/td\u003e\n\u003ctd\u003e32× 400W\u003c\/td\u003e\n\u003ctd\u003e12.8 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"esk-current\"\u003e\n\u003ctd\u003eMEGA 410\u003c\/td\u003e\n\u003ctd\u003e30× 410W\u003c\/td\u003e\n\u003ctd\u003e12.3 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo Panel\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c!-- ============ USE CASES ============ --\u003e\n\u003csection class=\"esk-usecases\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eUse Cases\u003c\/span\u003e\n\u003ch2\u003eWhere It Fits\u003c\/h2\u003e\n\u003cdiv class=\"esk-usecase-grid\"\u003e\n\u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eHomes\u003c\/span\u003e \u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eCabins\u003c\/span\u003e \u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eFarms\u003c\/span\u003e \u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eWorkshops\u003c\/span\u003e \u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eCommercial Buildings\u003c\/span\u003e \u003cspan class=\"esk-usecase-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eLarge Off-Grid Backup\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eFAQ\u003c\/span\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy are there two inverters instead of one?\u003c\/summary\u003e\n\u003cp\u003eTwo 6,500W NOVA 6548 inverters are paralleled to reach the system's combined 13,000W rating. Up to 6 identical units can be paralleled for even larger installations.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I choose a different panel array size?\u003c\/summary\u003e\n\u003cp\u003eYes — this same battery-and-inverter platform is also available with 38× 335W panels (12.7kW), 32× 400W panels (12.8kW), or with no panels included at all.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much usable battery capacity does this system have?\u003c\/summary\u003e\n\u003cp\u003e20.48kWh combined from four 5,120Wh ALPHA 5 PRO batteries, each rated for 7,000 deep cycles and expandable up to 15 units in parallel.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the inverter support solar, grid, and generator input?\u003c\/summary\u003e\n\u003cp\u003eYes — each NOVA 6548 inverter accepts solar, battery, utility mains, and generator power, with configurable charging priority via the LCD control panel.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a licensed electrician to install this?\u003c\/summary\u003e\n\u003cp\u003eGiven the scale of this system — two paralleled 6,500W inverters, a 20.48kWh battery bank, and a 12.3kW solar array — installation should be handled by a qualified, licensed electrician or solar installer familiar with your local code.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ DOWNLOADS ============ --\u003e\n\u003csection class=\"esk-downloads\"\u003e\u003cspan class=\"esk-eyebrow-sm\"\u003eDownloads\u003c\/span\u003e\n\u003ch2\u003eDocuments \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"esk-download-group\"\u003e\n\u003cp class=\"esk-download-group-title\"\u003eFull Specification\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0058\/2769\/0553\/files\/RS-M400_410_20260717.pdf?v=1784270402\" 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 MEGA 410 Solar Panel \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0058\/2769\/0553\/files\/Alpha_5_PRO-Specification-250122.pdf?v=1737524831\" 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 ALPHA 5 PRO Battery \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-download-group\"\u003e\n\u003cp class=\"esk-download-group-title\"\u003eUser Manual\u003c\/p\u003e\n\u003cdiv class=\"esk-download-list\"\u003e\n\u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0058\/2769\/0553\/files\/RS-H6548_Manual_8befb997-a343-44ab-89e8-5cc2dd27b83f.pdf?v=1713305051\" 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 NOVA 6548 Inverter \u003c\/a\u003e \u003ca class=\"esk-download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0058\/2769\/0553\/files\/ALPHA_5_PRO_MANUAL_241128_compressed.pdf?v=1732780394\" 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 ALPHA 5 PRO Battery \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\u003ePanels backed by a \u003cstrong\u003e25-year output warranty\u003c\/strong\u003e, batteries by a 10-year warranty, and inverters by a 3-year warranty. See Rich Solar's full warranty page for terms.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Rich Solar","offers":[{"title":"30 x 410 Watt - 12.3KW Total","offer_id":41244054618167,"sku":"RS-CBK1301A","price":19999.0,"currency_code":"USD","in_stock":true},{"title":"32 x 400 Watt - 12.8KW Total","offer_id":41658091405367,"sku":"RS-CBK1301B","price":20299.0,"currency_code":"USD","in_stock":true},{"title":"38 x 335 Watt - 12.7KW Total","offer_id":41658091438135,"sku":"RS-CBK1301C","price":20499.0,"currency_code":"USD","in_stock":true},{"title":"No Panel","offer_id":41658091470903,"sku":"RS-CBK1301D","price":10999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/Complete_Off-Grid_Solar_Kit_13_000W_120_240V_Output_48VDC_-_410W_x_30_1d3e6f22-9c5f-4863-bb1b-9d42575a8a4c.webp?v=1746989047"},{"product_id":"sungoldpower-11-4kw-hybrid-solar-system-48v-split-phase-51-2kwh-lithium-battery-36x450w-panels-sgh-11n5e","title":"SungoldPower 22.8kW Hybrid Solar System Kit 48V Split Phase 51.2kWh Lithium Battery 36 x 450 Watt Solar Panel SGH-11N5E","description":"\u003cdiv class=\"esk-pd esk-pd-a esk-sgh11n5e-pd\"\u003e\n\u003c!-- ============ HERO ============ --\u003e\n\u003csection class=\"esk-hero\"\u003e\n\u003cp class=\"esk-eyebrow\"\u003eEco Solar Kits · Sungold Power · SGH-11N5E\u003c\/p\u003e\n\u003ch2\u003eSungoldPower 51.2kWh Split Phase Hybrid Solar Kit 48V Lithium Battery 36 x 450 Watt Solar Panels SGH-11N5E\u003c\/h2\u003e\n\u003cp class=\"esk-lead\"\u003eA complete hybrid solar system — dual split-phase inverters (20kW continuous, 22.8kW peak combined) with grid-tie capability, 51.2kWh of LiFePO₄ battery storage, and thirty-six 450W monocrystalline panels.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-rays\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\n    \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\n    \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\n    \u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\n    \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\n  \u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ STATS ============ --\u003e\n\u003csection class=\"esk-stats\"\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e20kW\u003c\/span\u003e\u003cspan class=\"label\"\u003eCombined Continuous (22.8kW Peak)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e51.2kWh\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\"\u003e36×450W\u003c\/span\u003e\u003cspan class=\"label\"\u003eSolar Panels\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-stat\"\u003e\n\u003cspan class=\"num\"\u003e120V\/240V\u003c\/span\u003e\u003cspan class=\"label\"\u003eSplit-Phase Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ OVERVIEW (partially confirmed \u0026#8212; see comment above) ============ --\u003e\n\u003csection class=\"esk-overview\"\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis Hybrid Solar Kit comes complete with 16,200W of solar panels, 2 x 11.4kW hybrid inverters, and a massive 51.2kWh lithium battery bank.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ WHAT'S INCLUDED (cross-verified across multiple listings) ============ --\u003e\n\u003csection class=\"esk-included\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/SGH-11N2E-A_01_a3ed724f-7fd6-4bfc-ba2a-1c48a7154810.webp?v=1786518351\" alt=\"A modern white two-story house features sleek black solar panels on its roof. The text highlights the Sungold Power 22.8kW Hybrid Solar System Kit, which includes an 11.4kW inverter, a powerful 48V split-phase system, a 51.2kWh lithium battery bank, and thirty-six high-efficiency 440-watt solar panels. The home’s clean color palette blends seamlessly with the blue sky and lush trees in the background, showcasing contemporary design paired with advanced sustainable technology from Sungold Power.\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWhat's Included with the SGH-11N5E Solar Kit\u003c\/h2\u003e\n\u003cul class=\"esk-included-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 X 11.4KW 48V Split Phase Hybrid Solar Inverter\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e36 X 450W Watt Monocrystalline Solar Panels\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e10 X 100AH 51.2V Lifepo4 Battery\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 X Enclosed Battery Cabinet for 10X 100AH 51.2V Lifepo4 Batteries\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e4 Sets X 50 Feet, Solar Extension Cables-Inverter PV input\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"b\"\u003e•\u003c\/span\u003e\u003cspan\u003e2 X 2\/0 AWG Battery Cable\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FEATURES ============ --\u003e\n\u003csection class=\"esk-features\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"esk-feature-grid\"\u003e\n\u003cdiv class=\"esk-feature\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"currentColor\"\u003e\u003cpath d=\"M13 2 4 14h6l-1 8 9-12h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003e20kW Combined, 22.8kW Peak\u003c\/h3\u003e\n\u003cp\u003eTwo inverters paralleled, each rated 10kW continuous with an 11.4kW peak, for motor starts and other high-draw moments.\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\"\u003e\u003cpath d=\"M4 7h13M13 3l4 4-4 4M20 17H7M11 21l-4-4 4-4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003eOff-Grid, Hybrid, or Grid-Tied\u003c\/h3\u003e\n\u003cp\u003eRun appliances on solar, send excess to the grid, or store power for backup — one system, three modes.\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\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"4.2\"\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\u003ch3\u003e30kW Solar Input, 6 MPPTs\u003c\/h3\u003e\n\u003cp\u003eTwo inverters, three MPPT trackers each rated 15kW per unit, supporting up to 600V per tracker — well beyond the 16,200W of panels included here.\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\"\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\u003ch3\u003eWiFi Monitoring Included\u003c\/h3\u003e\n\u003cp\u003eTrack performance, battery status, and system behavior from your phone or browser.\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\"\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\u003ch3\u003eFurther Expandable to 9 Units\u003c\/h3\u003e\n\u003cp\u003eBeyond the 2 inverters included, parallel up to 9 total for a 102.6kW peak system as power needs grow.\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\"\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\u003ch3\u003eUL 1741 \/ CEC Listed, IP65\u003c\/h3\u003e\n\u003cp\u003eMeets utility-interconnection standards for grid-tie use, in a rated-for-outdoor enclosure.\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\"\u003e\u003cpath d=\"M13 2 3 14h6l-1 8L18 10h-6l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003e10-Year Inverter Warranty\u003c\/h3\u003e\n\u003cp\u003eConfirmed directly for this inverter model — notably longer than the off-grid SPH-series inverters.\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\"\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\u003ch3\u003e21.25% Panel Efficiency\u003c\/h3\u003e\n\u003cp\u003e182mm Grade-A monocrystalline cells backed by a 25-year linear product warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"esk-rays\" style=\"background: var(--paper-2);\"\u003e\u003csvg viewbox=\"0 0 700 22\" preserveaspectratio=\"none\"\u003e\n    \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\n    \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\n    \u003ccircle cx=\"350\" cy=\"11\" r=\"9\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/circle\u003e\n    \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\n  \u003c\/svg\u003e\u003c\/div\u003e\n\u003c!-- ============ SPECS ============ --\u003e\n\u003csection class=\"esk-specs\"\u003e\n\u003ch2\u003eFull Specifications\u003c\/h2\u003e\n\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003e\u003ca href=\"\/products\/sungold-power-11-4kw-48v-split-phase-hybrid-inverter-sgn-11k15pro\"\u003eSGN-11K15PRO Hybrid Inverter (×2, Paralleled)\u003c\/a\u003e\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; two units paralleled for 20kW combined continuous \/ 22.8kW combined peak.\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eOutput (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous output power\u003c\/td\u003e\n\u003ctd\u003e10 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak output power\u003c\/td\u003e\n\u003ctd\u003e11.4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated output voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240Vac split-phase\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eBattery Input (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage range\u003c\/td\u003e\n\u003ctd\u003e40–64 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. charge\/discharge current\u003c\/td\u003e\n\u003ctd\u003e210 A \/ 180 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\u003ePV Input (Per Unit)\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo. of MPPT trackers\u003c\/td\u003e\n\u003ctd\u003e3 (independent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. combined solar input\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. voltage per tracker\u003c\/td\u003e\n\u003ctd\u003e600 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePV voltage range\u003c\/td\u003e\n\u003ctd\u003e70–540 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\u003eModes \u0026amp; Grid Functions\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating modes\u003c\/td\u003e\n\u003ctd\u003eOff-grid \/ Hybrid \/ Grid-tied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC coupling\u003c\/td\u003e\n\u003ctd\u003eSupported (single-inverter systems only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMonitoring\u003c\/td\u003e\n\u003ctd\u003eWiFi + mobile app, LCD display\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; Scaling\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection rating\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eWall-mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel\u003c\/td\u003e\n\u003ctd\u003e9 units total, up to 102.6kW peak combined\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\u003eCertification \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety\u003c\/td\u003e\n\u003ctd\u003eUL 1741, UL 1699B, UL 1741SB, CSA C22.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid standards\u003c\/td\u003e\n\u003ctd\u003eIEEE 1547:2018, HECO SRD 2.0, CEC Listed\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\u003cdiv class=\"esk-specs-block\"\u003e\n\u003cp class=\"esk-specs-block-title\"\u003e\u003ca href=\"\/products\/sungold-power-5120wh-48v-100ah-server-rack-lifepo4-battery-sg48100p\"\u003eSG48100P LiFePO₄ Battery (×10, In 2 Enclosed Cabinets)\u003c\/a\u003e\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\u003eRated capacity\u003c\/td\u003e\n\u003ctd\u003e100 Ah\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\u003eEnergy per unit\u003c\/td\u003e\n\u003ctd\u003e5,120 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombined (10 units)\u003c\/td\u003e\n\u003ctd\u003e51,200 Wh (51.2 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\u003eDurability \u0026amp; Warranty\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003e≥7,000 to 80% capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign life\u003c\/td\u003e\n\u003ctd\u003e15 years\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\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eUL1973\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; Communication\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmart BMS\u003c\/td\u003e\n\u003ctd\u003eOvercharge, deep-discharge, overheat, short-circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eCAN \/ RS485 \/ RS232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInverter compatibility\u003c\/td\u003e\n\u003ctd\u003eGrowatt, Deye, Luxpower, Victron, and more\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\u003eScaling\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax parallel (battery spec)\u003c\/td\u003e\n\u003ctd\u003e32 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCabinet capacity (this kit)\u003c\/td\u003e\n\u003ctd\u003e5 per cabinet, 2 cabinets included\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\"\u003e\u003ca href=\"\/products\/sungold-power-450w-monocrystalline-perc-solar-panels-kit\"\u003eSG-450WM Monocrystalline Panel (×36)\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv class=\"esk-spec-groups\"\u003e\n\u003cdiv class=\"esk-spec-group\"\u003e\n\u003ch4\u003eElectrical\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. power\u003c\/td\u003e\n\u003ctd\u003e450 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax-power voltage\u003c\/td\u003e\n\u003ctd\u003e30.08 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax-power current\u003c\/td\u003e\n\u003ctd\u003e16.05 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpen-circuit voltage\u003c\/td\u003e\n\u003ctd\u003e35.03 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule efficiency\u003c\/td\u003e\n\u003ctd\u003e20.33%\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\u003eBuild \u0026amp; Warranty*\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell type\u003c\/td\u003e\n\u003ctd\u003eMono PERC, half-cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (each)\u003c\/td\u003e\n\u003ctd\u003e54.0 lbs (24.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e75.16 × 44.65 × 1.38 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJunction box\u003c\/td\u003e\n\u003ctd\u003eIP68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25yr linear product + 10yr workmanship\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: 8px !important;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 8px !important;\"\u003e \u003c\/p\u003e\n\u003cp style=\"font-size: 12.5px; color: var(--muted) !important; margin-top: 8px !important;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/SGH-7_c4f90f28-3f6f-4e67-ab3f-bbfae8541fac.webp?v=1786488534\" alt=\"Sungold Power SGH-11N5E solar kit — product photo\"\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- ============ THREE WAYS TO USE IT ============ --\u003e\n\u003csection class=\"esk-power\"\u003e\n\u003ch2\u003eThree Ways to Use It\u003c\/h2\u003e\n\u003cdiv class=\"esk-power-grid\"\u003e\n\u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eOff-Grid — Run entirely on solar and battery\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eHybrid — Combine solar, battery, and grid\u003c\/span\u003e \u003cspan class=\"esk-power-item\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eGrid-Tied — Send excess power back to the grid\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FAQ ============ --\u003e\n\u003csection class=\"esk-faq\"\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eCan this system send power back to the grid?\u003c\/summary\u003e\n\u003cp\u003eYes — in grid-tied mode, excess solar power can be sold back to the grid. The system also supports pure off-grid operation and a hybrid mode combining solar, battery, and grid.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eCan I connect even more inverters together?\u003c\/summary\u003e\n\u003cp\u003eYes — beyond the 2 inverters included, up to 9 identical SGN11.4KHB-48 inverters can run in parallel for a combined 102.6kW peak system as power needs grow further.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhat's the actual usable battery capacity?\u003c\/summary\u003e\n\u003cp\u003e51.2kWh combined from ten 5,120Wh LiFePO₄ batteries across 2 included enclosed cabinets, each rated for at least 7,000 cycles to 80% capacity and backed by a confirmed 10-year warranty.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eCan I add more solar panels later?\u003c\/summary\u003e\n\u003cp\u003eYes — the two inverters combined support up to 30kW of solar input, well above the 16,200W (36×450W) included in this kit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eIs there a version without solar panels?\u003c\/summary\u003e\n\u003cp\u003eYes — this product is also available without panels, for anyone sourcing their own or already owning compatible panels.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eDo I need a licensed electrician to install this?\u003c\/summary\u003e\n\u003cp\u003eGiven the grid-interconnection requirements plus the voltages, currents, and battery wiring involved, installation should be handled by a qualified, licensed electrician familiar with your local code and utility interconnection rules.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c!-- ============ FOOTER ============ --\u003e\n\u003csection class=\"esk-footer\"\u003e\n\u003cp\u003eInverter, battery, and solar panels are all backed by long-term coverage: \u003cstrong\u003e10 years\u003c\/strong\u003e on the inverter, \u003cstrong\u003e10 years\u003c\/strong\u003e on the battery, and \u003cstrong\u003e25 years\u003c\/strong\u003e linear performance plus 10-year workmanship on the panels.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Sungold Power","offers":[{"title":"36 x 450W Solar Panels","offer_id":41652260044855,"sku":"SGH-11N5E","price":25913.0,"currency_code":"USD","in_stock":true},{"title":"WITHOUT Solar Panels","offer_id":41652260077623,"sku":"SGH-11N5E-S","price":18878.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/2418\/5399\/files\/SGH-11N5E_ee7f2d9b-3354-46d4-a6ca-a7e98c472567.webp?v=1786518516"},{"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\"\u003e\u003ca href=\"\/products\/eg4-12kw-18kpv-hybrid-inverter\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/a\u003e\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\"\u003e\u003ca href=\"\/products\/eg4-12kw-18kpv-hybrid-inverter\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/a\u003e\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\"\u003e\u003ca href=\"\/products\/eg4-12kw-18kpv-hybrid-inverter\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/a\u003e\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\"\u003e\u003ca href=\"\/products\/eg4-12kw-18kpv-hybrid-inverter\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/a\u003e\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\"\u003e\u003ca href=\"\/products\/eg4-12kw-18kpv-hybrid-inverter\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/a\u003e\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\"\u003e\u003ca href=\"\/products\/eg4-12kw-18kpv-hybrid-inverter\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/a\u003e\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\"\u003e\u003ca href=\"\/products\/eg4-12kw-18kpv-hybrid-inverter\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/a\u003e\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\"\u003e\u003ca href=\"\/products\/eg4-12kw-18kpv-hybrid-inverter\"\u003eEG4 18kPV All-in-One Hybrid Inverter (per inverter)\u003c\/a\u003e\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"}],"url":"https:\/\/ecosolarkits.com\/collections\/promo-save500.oembed","provider":"Eco Solar Kits","version":"1.0","type":"link"}