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BLUETTI B4810 · 51.2V 100Ah LiFePO₄ Battery
The B4810 is a 51.2V, 100Ah LiFePO₄ battery module built for 48V systems that need to power more than basic 12V lighting and a fridge — think air conditioning, RV main power, off-grid cabins, and home backup. It's rated for 6,000 cycles to 70% capacity, with self-heating for cold-weather charging and a CAN data connection that lets it coordinate directly with BLUETTI's RV5 Power Hub. Track voltage, state of charge, and temperature from the BLUETTI app over Bluetooth.
Sold alongside two siblings on the same platform — same core technology, different capacity and voltage.
51.2V, 100Ah
48V RV main power systems, boats, off-grid cabins, and home backup — the largest of the three.
12.8V, 100Ah
Trolling motors, small RV fridges, lighting, and camping power — the smaller, more affordable entry point.
12.8V, 314Ah
Medium to large RVs, 12V marine setups, solar storage, and agricultural equipment.
A single battery delivers around 5kW of continuous power — enough for heavier loads like air conditioning.
The BMS reports available energy, current, and limits directly to an RV5 Power Hub, which adjusts charge/discharge strategy accordingly.
Warms itself before charging when temperatures drop, and discharges over an even wider temperature range.
Rated for long-term daily use, not just occasional backup duty.
Check voltage, state of charge, and temperature without accessing the battery directly.
Sealed against dust and water for demanding installation environments.
Scale to a theoretical 122.88kWh (24 units) for custom energy setups beyond a single battery.
Confirmed specifically for this model, covering defects in materials and workmanship.
The B4810 is positioned differently from its two 12.8V siblings — it's the foundation for "serious" 48V systems, as BLUETTI puts it, meant for setups that need to power more than basic 12V lighting and a fridge. A single battery delivers 5,120Wh and around 5kW of continuous power, enough headroom for heavier loads like air conditioning that a 12V system would struggle with. It shows its full potential paired with a power hub like BLUETTI's RV5: the B4810 stores energy as 48V DC, and a CAN data connection lets its BMS report available energy, current, and limits directly to the RV5, which adjusts its charge and discharge strategy in response — coordination that a simple wired connection wouldn't offer on its own.
Self-heating technology means it can warm itself before charging begins when temperatures drop, and it discharges over a wider range than it charges, keeping it usable through spring and autumn or in colder climates. Multiple independent sources agree closely on its physical specs — 101.4 lbs, a 23.94 × 14.96 × 5.71 in profile — and its charge/discharge limits: 50A recommended charge current (100A max), 100A max discharge. Up to 24 units connect in parallel and series for a theoretical 122.88kWh, for setups that need real scale.
B4810 LiFePO₄ Battery
| Rated voltage | 51.2 V |
| Rated capacity | 100 Ah |
| Total energy | 5,120 Wh |
| Cycle life | 6,000 to 70% capacity |
| Recommended charge current | 50 A |
| Max charge current | 100 A |
| Max discharge current | 100 A |
| Operating (charge / discharge) | -4–131°F |
| Storage (≤1 month) | -4–104°F |
| Storage (≤6 months) | -4–77°F |
| Cell protection (charging) | <30°F or >142°F |
| Cell protection (discharging) | <-5.8°F or >142°F |
| Weight | 101.4 lbs |
| Dimensions (L×W×H) | 23.94 × 14.96 × 5.71 in |
| Protection rating | IP65 |
| Operating humidity | 95% max |
| App connectivity | Bluetooth |
| System integration | CAN data (RV5-compatible) |
| Max parallel/series | 24 units |
| Max expansion | 122.88kWh (51.2V, 2,400Ah) |
| Manufacturer's warranty | 5 years |
BLUETTI positions it as the foundation for "serious" 48V systems — RV main power, boats, off-grid cabins, and home backup — for loads beyond basic 12V lighting and a fridge, like air conditioning.
The B4810 stores energy as 48V DC while the RV5 decides how it's used. A CAN data connection lets the B4810's BMS report available energy, current, and limits directly to the RV5, which adjusts its charge and discharge strategy in response.
Up to 24 units in parallel and series, for a theoretical maximum of 122.88kWh (51.2V, 2,400Ah).
Yes — built-in self-heating warms the battery before charging begins if temperatures are too low, and it discharges over an even wider temperature range than it charges.
Same core LiFePO₄ technology, but a different voltage platform — 51.2V rather than 12.8V — built for 48V systems that need more continuous power (around 5kW from a single battery) than a 12V setup can comfortably deliver.
5 years, confirmed specifically for this model, covering defects in materials and workmanship.
Free shipping on all orders within the mainland US (Hawaii, Alaska and overseas territories excluded - a freight forwarder is required). Orders are confirmed by email immediately; we verify stock with the supplier before your card is charged. In-stock items ship within five business days, with tracking emailed within 24 hours of shipment. Typical lead time from purchase to delivery is 5-10 business days; freight transit is usually 4-6 business days. Minimum order value is $69.
You have 30 days from the delivery date to initiate a return (35 days for orders placed Nov 25-30 and Dec 25-31). Items must be unused, in original packaging with tags attached, and returns require prior authorization from our team.
To start a return: +1 (307) 317-7213, hello@ecosolarkits.com, or live chat. Read the full return and refund policy
