Vatrer 12V 300Ah Self-Heating
#2 in LargeFull review
For RV and cabin owners who boondock in freezing weather and want one 300Ah battery that can charge safely in the cold.
Amazon $599.99$599.99
3.9/5
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.
- 280 Ah (3,584 Wh)Capacity
- 200 AContinuous output
- Self-heatingCold charging
- YesBluetooth
- 7 yearsWarranty
- $0.28Price / Wh
Check price at Amazon$999
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Charges in sub-freezing weather: a built-in heater warms the cells first
- Lid comes off so the BMS and cells can be replaced instead of scrapping the battery
- 7-year warranty, longer than most budget brands
- Metal case with Bluetooth monitoring
Cons
- At 73 lb it is a two-person lift
- Costs far more per watt-hour than plastic-cased 280Ah to 320Ah rivals
- No water resistance rating, so keep it out of bilges and open decks
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | SK12V280H |
|---|---|
| Capacity | |
| Rated capacity | 280 Ah (3,584 Wh) |
| Nominal voltage | 12.8 V |
| Chemistry | LiFePO4 |
| Rated cycle life | 8,000 |
| Price per Wh | $0.28 |
| BMS | |
| Continuous discharge | 200 A |
| Peak discharge | 250 A for 7.5 s |
| Max charge current | 120 A |
| Low-temperature charging | Self-heating |
| Bluetooth monitoring | Yes |
| Series / parallel | up to 4 in series |
| Build | |
| Dimensions | 13.07 x 9.52 x 9.84 in |
| Weight | 73 lb |
| Terminals | M8 |
| Warranty | 7 years |
| Released | 2024-02 |
Alternatives in this size
Epoch 12V 300Ah Essential
#3 in LargeFull review
For RVs and boats that want a large, heated, Bluetooth-monitored bank in one Group 31 case. It suits cold-weather users who would otherwise wire up three 100Ah batteries.
Epoch $1,249$1,249
Power Queen 12V 320Ah Mini
#4 in LargeFull review
For RV owners who want a full 4 kWh bank in a tight compartment and camp mostly above freezing.
Amazon $655.49$655.49
Compare
Compare the SOK 12V 280Ah Heated with any other 12V lithium battery →
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