What limits this battery is its rather than its 280 Ah: 140 A continuous and 200 A for 1,800 s. Behind a 48 V inverter that is at most 5,098 W of steady load before the 15 % margin is gone, because the inverter draws its power divided by 50.4 V and by an efficiency we cap at 85 %.
A 2000 W inverter pulls 46.7 A, so it needs 1 of these in parallel; one 14.34 kWh bank of them stores 11,469 Wh usable at 80 % depth of discharge.
On its own it holds a weekend van (400 Wh a day) load for 28.7 days and the year-round van profile (895 Wh) for 12.8 days, with no sun at all. Its 140 A charge limit also caps the solar side: one battery accepts about 8,060 W of panels behind an at 57.6 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 × | 140 A | 5,098 W | Victron Energy MultiPlus 48/3000/35 (2,400 W), Victron Energy MultiPlus-II 48/3000/35-32 230V (2,400 W) |
| 2 × | 280 A | 10,196 W | Victron Energy MultiPlus-II 48/8000/110-100 230V (6,400 W), Victron Energy MultiPlus 48/5000/70 (4,000 W) |
| 3 × | 420 A | 15,294 W | Victron Energy MultiPlus-II 48/10000/140-100 230V (8,000 W), Victron Energy MultiPlus-II 48/8000/110-100 230V (6,400 W) |
Datasheet
| Field | Value |
|---|---|
| Capacity | 280 Ah at 51.2 V |
| BMS continuous / peak | 140 A / 200 A, 1,800 s |
| Max charge | 140 A |
| Charge below | 0.0 °C, heated |
| Depth of discharge | 80 %, 8,000 cycles |
Source: manufacturer documentation
Similar batteries
- Battle Born Batteries BBGC3 270Ah 12V GC3 LiFePO4 270 Ah, BMS 300 A
- Battle Born Batteries BBGC3H 270Ah 12V GC3 LiFePO4 Heated 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
Where to buy
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- EG4 Electronics WallMount Indoor 280Ah Lithium Battery (WM-48-280-IN)
- Battle Born Batteries BBGC3 270Ah 12V GC3 LiFePO4
- Battle Born Batteries BBGC3H 270Ah 12V GC3 LiFePO4 Heated
No direct manufacturer program is joined yet (§13.3); prices marked with an image and a dollar figure are a specific listing checked via the Amazon Creators API, the rest are plain searches.
How this page was computed
Inverter DC draw = watts ÷ (50.4 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.