Power Queen 12V 100Ah Self-Heating
#2 in 100 Ah classFull review
The cheapest way to get self-heating in a Group 31 battery, for cold-weather RV and marine use. Independent testing confirms its rated capacity.
Amazon $284.99$284.99
4.1/5
A tested, self-heating 100Ah battery with app monitoring, for RVs and solar setups that see winter charging. Priced well below most heated batteries.
- 100 Ah (1,280 Wh)Capacity
- 100 AContinuous output
- Self-heatingCold charging
- YesBluetooth
- $0.22Price / Wh
Check price at Amazon$279.98
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Charges in freezing weather: it heats itself from the charger first
- Delivered 104 Ah in an independent test, a little over its rating
- Phone app shows charge level, current and cell temperature
- Up to 4 in series for 24V, 36V or 48V systems
Cons
- Group 31 size is longer than a Group 24 tray
- Heater only runs when the charger supplies more than 10 A, so a small solar trickle won’t warm it
- Can’t be mixed in a bank with Vatrer’s non-heated batteries
- Warranty term isn’t stated in the listing
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.
Independent capacity tests
Capacity measured by independent reviewers, discharging from full to the BMS cutoff. Discharge current and temperature differ between tests, so compare figures within one source.
| Tested by | Measured | Energy | Of rated | Discharge | Conditions |
|---|---|---|---|---|---|
| Techtest | 104.2 Ah | 1,350 Wh | 104% | 20 A | Mean of 4 discharges to 10.8 V on a DLB-600W electronic load (1 at 10 A, 3 at 20 A); range 103.64-105.19 Ah. EU-market unit, same 329 x 172 x 214 mm case. |
Specifications
| Model number | LM12100 (Group 31, self-heating, app) |
|---|---|
| Capacity | |
| Rated capacity | 100 Ah (1,280 Wh) |
| Tested capacity | 104% of rated |
| Nominal voltage | 12.8 V |
| Chemistry | LiFePO4 |
| Rated cycle life | 5,000 at 80% depth |
| Price per Wh | $0.22 |
| BMS | |
| Continuous discharge | 100 A |
| Max charge current | 100 A |
| Low-temperature charging | Self-heating |
| Bluetooth monitoring | Yes |
| Series / parallel | up to 4 in series, 4 in parallel |
| Build | |
| Case size | Group 31 |
| Dimensions | 13.07 x 6.89 x 8.62 in |
| Weight | 24 lb |
| Terminals | M8 |
| Water resistance | IP65 |
Alternatives in this size
LiTime 12V 100Ah Group 31
#3 in 100 Ah classFull review
A good-value Group 31 drop-in for boats and RVs used in mild climates. Independent testing shows it delivers more than its rated 100Ah.
Amazon $335.99$335.99
Dyness 12V 100Ah Bluetooth
#4 in 100 Ah classFull review
A cheap, IP65 Bluetooth 100Ah battery for RV, solar and marine use, from one of the larger storage-battery makers. Cold-climate users need a heated model instead.
Amazon $179.98$179.98
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