BLUETTI B4810 · 51.2V 100Ah LiFePO₄ Battery
5,120Wh at 48V — The Foundation for Serious Power Systems
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.
Where B4810 Fits in the Lineup
Sold alongside two siblings on the same platform — same core technology, different capacity and voltage.
51.2V, 100Ah
B4810 (This Battery)
48V RV main power systems, boats, off-grid cabins, and home backup — the largest of the three.
12.8V, 100Ah
B1210
Trolling motors, small RV fridges, lighting, and camping power — the smaller, more affordable entry point.
12.8V, 314Ah
B1232
Medium to large RVs, 12V marine setups, solar storage, and agricultural equipment.
What Makes the B4810 Different
5,120Wh at 48V
A single battery delivers around 5kW of continuous power — enough for heavier loads like air conditioning.
CAN Integration With RV5
The BMS reports available energy, current, and limits directly to an RV5 Power Hub, which adjusts charge/discharge strategy accordingly.
Self-Heating in Cold Weather
Warms itself before charging when temperatures drop, and discharges over an even wider temperature range.
6,000 Cycles to 70%
Rated for long-term daily use, not just occasional backup duty.
Bluetooth App Monitoring
Check voltage, state of charge, and temperature without accessing the battery directly.
IP65 Rated
Sealed against dust and water for demanding installation environments.
Up to 24 in Parallel
Scale to a theoretical 122.88kWh (24 units) for custom energy setups beyond a single battery.
5-Year Warranty
Confirmed specifically for this model, covering defects in materials and workmanship.
Built for 48V Systems That Need to Do More
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.
Full Specifications
B4810 LiFePO₄ Battery
Capacity
| Rated voltage | 51.2 V |
| Rated capacity | 100 Ah |
| Total energy | 5,120 Wh |
| Cycle life | 6,000 to 70% capacity |
Charge & Discharge
| Recommended charge current | 50 A |
| Max charge current | 100 A |
| Max discharge current | 100 A |
Temperature
| Operating (charge / discharge) | -4–131°F |
| Storage (≤1 month) | -4–104°F |
| Storage (≤6 months) | -4–77°F |
| Cell protection (charging) | 142°F |
| Cell protection (discharging) | 142°F |
Physical & Environmental
| Weight | 101.4 lbs |
| Dimensions (L×W×H) | 23.94 × 14.96 × 5.71 in |
| Protection rating | IP65 |
| Operating humidity | 95% max |
Connectivity & Scaling
| App connectivity | Bluetooth |
| System integration | CAN data (RV5-compatible) |
| Max parallel/series | 24 units |
| Max expansion | 122.88kWh (51.2V, 2,400Ah) |
Warranty
| Manufacturer’s warranty | 5 years |
Common Questions
What is the B4810 designed for?
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.
How does it work with the RV5 Power Hub?
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.
How many batteries can I connect together?
Up to 24 units in parallel and series, for a theoretical maximum of 122.88kWh (51.2V, 2,400Ah).
Does it work in cold weather?
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.
How is this different from the B1210 and B1232?
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.
What’s the warranty?
5 years, confirmed specifically for this model, covering defects in materials and workmanship.
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