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
The Power Queen 12V 100Ah Self-Heating is the better 12V lithium battery overall, rated 4.0 to 3.6. The Power Queen 12V 100Ah Group 31 costs $19 less ($265.99 vs $284.99).
Power Queen 12V 100Ah Group 31
#9 in 100 Ah classFull review
A budget Group 31 replacement for lead-acid in boats and RVs that stay above freezing.
Amazon $265.99$265.99
Prices 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.
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 100 Ah class 12V lithium battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | Power Queen 12V 100Ah Self-Heating | Power Queen 12V 100Ah Group 31 |
|---|---|---|
| Overall rating | 4.0/5 | 3.6/5 |
| Value 35% | 80 $0.22 per rated Wh | 82 $0.21 per rated Wh |
| Tested capacity 15% | 100 105% of rated capacity measured (1 test) | 50 not yet independently tested (neutral score used) |
| Output 15% | 50 100 A continuous (about 1,280 W at 12.8 V) | 50 100 A continuous (about 1,280 W at 12.8 V) |
| Warranty 15% | 50 5-year warranty | 50 5-year warranty |
| Cycle life 10% | 50 cycle life not published (neutral score used) | 50 4,000 cycles at 100% depth, maker rating |
| Cold weather 10% | 100 self-heating, so it charges below freezing | 50 low-temperature charging protection not stated (neutral score used) |
Independent capacity tests
Power Queen 12V 100Ah Self-Heating
| Tested by | Measured | Energy | Of rated | Discharge | Conditions |
|---|---|---|---|---|---|
| techtest.org | 105.5 Ah | 1,368 Wh | 105% | 5 A | Self-heating version, EU unit (329 x 172 x 214 mm, 10.7 kg), discharged with an electronic load. Same test measured 105.23 Ah / 1351 Wh at 10 A and 105.57 Ah / 1321 Wh at 20 A. |
Power Queen 12V 100Ah Group 31
No independent test published yet.
Specifications
| Power Queen 12V 100Ah Self-Heating | Power Queen 12V 100Ah Group 31 | |
|---|---|---|
| Capacity | ||
| Rated capacity | 100 Ah (1,280 Wh) | 100 Ah (1,280 Wh) |
| Tested capacity | 105% of rated | - |
| Nominal voltage | 12.8 V | 12.8 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | - | 4,000 at 100% depth |
| Price per Wh | $0.22 | $0.21 |
| BMS | ||
| Continuous discharge | 100 A | 100 A |
| Low-temperature charging | Self-heating | - |
| Series / parallel | - | up to 4 in series, 4 in parallel |
| Build | ||
| Case size | Group 31 | Group 31 |
| Dimensions | 12.99 x 6.77 x 8.5 in | 13 x 6.77 x 8.43 in |
| Weight | 23.3 lb | 24.2 lb |
| Water resistance | - | IP65 |
| Warranty | 5 years | 5 years |