What limits this battery is its rather than its 270 Ah: 300 A continuous and 500 A for 30 s. Behind a 12 V inverter that is at most 2,731 W of steady load before the 15 % margin is gone, because the inverter draws its power divided by 12.6 V and by an efficiency we cap at 85 %.
A 2000 W inverter pulls 186.7 A, so it needs 1 of these in parallel; one 3.46 kWh bank of them stores 3,456 Wh usable at 100 % depth of discharge.
On its own it holds a weekend van (400 Wh a day) load for 8.6 days and the year-round van profile (895 Wh) for 3.9 days, with no sun at all. Its 135 A charge limit also caps the solar side: one battery accepts about 1,940 W of panels behind an at 14.4 V charging voltage, so a bigger array needs a second battery or a controller set to limit current. It has a built-in heater, so the lithium-freeze check passes where a plain LiFePO4 battery fails.
Largest inverter it carries
| Batteries in parallel | BMS continuous | Max inverter | Inverters in the catalog that fit |
|---|---|---|---|
| 1 × | 300 A | 2,731 W | BougeRV 2000W 12V Pure Sine Wave Inverter with Bluetooth (2,000 W), HQST 2000W 12V Pure Sine Wave Inverter (HI1220PG2-BR-G1-US) (2,000 W) |
| 2 × | 600 A | 5,462 W | AIMS Power PWRINV5K24012W (5,000 W), Victron Energy MultiPlus-II 12/5000/220-50 230V (4,000 W) |
| 3 × | 900 A | 8,193 W | AIMS Power PWRINV5K24012W (5,000 W), Victron Energy MultiPlus-II 12/5000/220-50 230V (4,000 W) |
Datasheet
| Field | Value |
|---|---|
| Capacity | 270 Ah at 12.8 V |
| BMS continuous / peak | 300 A / 500 A, 30 s |
| Max charge | 135 A |
| Charge below | −3.9 °C, heated |
| Depth of discharge | 100 %, 3,000 cycles |
Source: manufacturer documentation
Similar batteries
- Battle Born Batteries BBGC3 270Ah 12V GC3 LiFePO4 270 Ah, BMS 300 A
- BigBattery ETHOS 48V 10.24kWh (K0949, 2 modules + control box) 200 Ah, BMS 200 A
- BigBattery ETHOS 48V 15.36kWh (K0950, 3 modules + control box) 300 Ah, BMS 250 A
- EG4 Electronics WallMount Indoor 280Ah Lithium Battery (WM-48-280-IN) 280 Ah, BMS 140 A
Where to buy
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- Battle Born Batteries BBGC3H 270Ah 12V GC3 LiFePO4 Heated
- Battle Born Batteries BBGC3 270Ah 12V GC3 LiFePO4
- BigBattery ETHOS 48V 10.24kWh (K0949, 2 modules + control box)
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How this page was computed
Inverter DC draw = watts ÷ (12.6 V under load × 0.85). A pairing passes when that draw stays at or below 85 % of the combined BMS continuous rating and the surge draw stays under the BMS peak.
- Manufacturer documentation verified 2026-09-15
The formulas are the same open engine the checker runs; the methodology page lists every constant.
These results are for reference. Wiring must be installed by a qualified electrician. Mobile installations follow ABYC E-11; stationary ones NEC 690/706.