SOK 12V 280Ah Heated
#1 in LargeFull review
For full-time RV and van owners in cold climates who want a serviceable, heated battery with a long warranty and will pay extra for it.
Amazon $999$999
The SOK 12V 280Ah Heated is the better 12V lithium battery overall, rated 3.9 to 3.3. The SOK 12V 280Ah Heated leads on value. The Battle Born 270Ah GC3 Heated wins on output and warranty. The SOK 12V 280Ah Heated costs $1,600 less ($999 vs $2,599).
Battle Born 270Ah GC3 Heated
#13 in LargeFull review
For large RV and marine banks that want one heated 270Ah battery from a US maker and can handle the weight and cost.
Inverters R Us $2,599$2,599
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the SOK 12V 280Ah Heated for value ($0.28 per rated Wh vs $0.75 per rated Wh).
- Choose the Battle Born 270Ah GC3 Heated for output (300 A continuous (about 3,840 W at 12.8 V) vs 200 A continuous (about 2,560 W at 12.8 V)) and warranty (10-year warranty vs 7-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every large 12V lithium battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | SOK 12V 280Ah Heated | Battle Born 270Ah GC3 Heated |
|---|---|---|
| Overall rating | 3.9/5 | 3.3/5 |
| Value 35% | 63 $0.28 per rated Wh | 0 $0.75 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Output 15% | 50 200 A continuous (about 2,560 W at 12.8 V) | 100 300 A continuous (about 3,840 W at 12.8 V) |
| Warranty 15% | 75 7-year warranty | 100 10-year warranty |
| Cycle life 10% | 100 8,000 cycles, maker rating | 33 3,000 cycles, maker rating |
| Cold weather 10% | 100 self-heating, so it charges below freezing | 100 self-heating, so it charges below freezing |
Specifications
| SOK 12V 280Ah Heated | Battle Born 270Ah GC3 Heated | |
|---|---|---|
| Capacity | ||
| Rated capacity | 280 Ah (3,584 Wh) | 270 Ah (3,456 Wh) |
| Nominal voltage | 12.8 V | 12.8 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 8,000 | 3,000 |
| Price per Wh | $0.28 | $0.75 |
| BMS | ||
| Continuous discharge | 200 A | 300 A |
| Peak discharge | 250 A for 7.5 s | - |
| Max charge current | 120 A | - |
| Low-temperature charging | Self-heating | Self-heating |
| Bluetooth monitoring | Yes | - |
| Series / parallel | up to 4 in series | - |
| Build | ||
| Dimensions | 13.07 x 9.52 x 9.84 in | 22.83 x 7.09 x 13.15 in |
| Weight | 73 lb | 80.8 lb |
| Terminals | M8 | 0.25 in brass blades |
| Warranty | 7 years | 10 years |
| Released | 2024-02 | 2021-03 |