What limits this battery is its rather than its 300 Ah: 250 A continuous and 300 A for 5 s. Behind a 48 V inverter that is at most 9,104 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 15.36 kWh bank of them stores 12,288 Wh usable at 80 % depth of discharge.
On its own it holds a weekend van (400 Wh a day) load for 30.7 days and the year-round van profile (895 Wh) for 13.7 days, with no sun at all. Its 200 A charge limit also caps the solar side: one battery accepts about 11,520 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. Without a heater it stops accepting charge below 0.0 °C, which the checker flags for any location whose design low is colder.
Largest inverter it carries
| Batteries in parallel | BMS continuous | Max inverter | Inverters in the catalog that fit |
|---|---|---|---|
| 1 × | 250 A | 9,104 W | Victron Energy MultiPlus 48/5000/70 (4,000 W), Victron Energy MultiPlus-II 48/5000/70-50 230V (4,000 W) |
| 2 × | 500 A | 18,207 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) |
| 3 × | 750 A | 27,311 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 | 300 Ah at 51.2 V |
| BMS continuous / peak | 250 A / 300 A, 5 s |
| Max charge | 200 A |
| Charge below | 0.0 °C |
| Depth of discharge | 80 %, 3,500 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
- EG4 Electronics WallMount Indoor 280Ah Lithium Battery (WM-48-280-IN) 280 Ah, BMS 140 A
Where to buy
As an Amazon Associate and through direct retailer programs, this site earns from qualifying purchases — see how.
- BigBattery ETHOS 48V 15.36kWh (K0950, 3 modules + control box)
- 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.