For off-grid and RV systems that need the most storage per inch. It holds 4 kWh in a compact case with Bluetooth monitoring.
Amazon $829.99The LiTime 12V 320Ah Mini Bluetooth is the better 12V lithium battery overall, rated 3.6 to 3.5. The LiTime 12V 320Ah Mini Bluetooth leads on value and output. The SOK 12V 206Ah Heated wins on cold weather and warranty. The SOK 12V 206Ah Heated costs $80.99 less ($749 vs $829.99).
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 $749Prices were last checked October 22, 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 LiTime 12V 320Ah Mini Bluetooth for value ($0.20 per rated Wh vs $0.28 per rated Wh) and output (200 A continuous (about 2,560 W at 12.8 V) vs 150 A continuous (about 1,920 W at 12.8 V)).
- Choose the SOK 12V 206Ah Heated for cold weather (self-heating, so it charges below freezing vs stops charging below freezing (no heater)) and warranty (7-year warranty vs 5-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 | LiTime 12V 320Ah Mini Bluetooth | SOK 12V 206Ah Heated |
|---|---|---|
| Overall rating | 3.6/5 | 3.5/5 |
| Value 35% | 78 $0.20 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% | 50 5-year warranty | 75 7-year warranty |
| Cycle life 10% | 50 4,000 cycles at 100% depth, maker rating | 33 3,000 cycles, maker rating |
| Cold weather 10% | 60 stops charging below freezing (no heater) | 100 self-heating, so it charges below freezing |
Specifications
| LiTime 12V 320Ah Mini Bluetooth | SOK 12V 206Ah Heated | |
|---|---|---|
| Capacity | ||
| Rated capacity | 320 Ah (4,096 Wh) | 206 Ah (2,636.8 Wh) |
| Nominal voltage | 12.8 V | 12.8 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 4,000 at 100% depth | 3,000 |
| Price per Wh | $0.20 | $0.28 |
| BMS | ||
| Continuous discharge | 200 A | 150 A |
| Peak discharge | - | 170 A for 4 s |
| Max charge current | - | 70 A |
| Low-temperature charging | Charge cutoff only | Self-heating |
| Bluetooth monitoring | Yes | Yes |
| Series / parallel | up to 4 in series, 4 in parallel | up to 4 in series, 10 in parallel |
| Build | ||
| Dimensions | 14.49 x 7.44 x 10.63 in | 11.9 x 7.9 x 11.1 in |
| Weight | 57.2 lb | 50 lb |
| Terminals | - | M8 |
| Water resistance | IP65 | IP50 |
| Warranty | 5 years | 7 years |
