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 3.5. The SOK 12V 280Ah Heated leads on output. The SOK 12V 206Ah Heated costs $250 less ($749 vs $999).
SOK 12V 206Ah Heated
#10 in LargeFull review
For RV and van owners who camp in freezing weather and want one large, serviceable battery with a long warranty. The heater lets it charge below freezing without damage.
Amazon $749$749
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 output (200 A continuous (about 2,560 W at 12.8 V) vs 150 A continuous (about 1,920 W at 12.8 V)).
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 | SOK 12V 206Ah Heated |
|---|---|---|
| Overall rating | 3.9/5 | 3.5/5 |
| Value 35% | 63 $0.28 per rated Wh | 62 $0.28 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) | 25 150 A continuous (about 1,920 W at 12.8 V) |
| Warranty 15% | 75 7-year warranty | 75 7-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 | SOK 12V 206Ah Heated | |
|---|---|---|
| Capacity | ||
| Rated capacity | 280 Ah (3,584 Wh) | 206 Ah (2,636.8 Wh) |
| Nominal voltage | 12.8 V | 12.8 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 8,000 | 3,000 |
| Price per Wh | $0.28 | $0.28 |
| BMS | ||
| Continuous discharge | 200 A | 150 A |
| Peak discharge | 250 A for 7.5 s | 170 A for 4 s |
| Max charge current | 120 A | 70 A |
| Low-temperature charging | Self-heating | Self-heating |
| Bluetooth monitoring | Yes | Yes |
| Series / parallel | up to 4 in series | up to 4 in series, 10 in parallel |
| Build | ||
| Dimensions | 13.07 x 9.52 x 9.84 in | 11.9 x 7.9 x 11.1 in |
| Weight | 73 lb | 50 lb |
| Terminals | M8 | M8 |
| Water resistance | - | IP50 |
| Warranty | 7 years | 7 years |
| Released | 2024-02 | 2026-03 |