For winter campers and ice anglers who need a compact 100Ah battery that can charge below freezing.
Amazon $352.99The Renogy Core Mini 12V 100Ah DuoHeat and the Epoch 12V 105Ah Essential are evenly matched, rated 3.7 and 3.7. The Renogy Core Mini 12V 100Ah DuoHeat leads on value. The Epoch 12V 105Ah Essential wins on warranty. The Renogy Core Mini 12V 100Ah DuoHeat costs $196.01 less ($352.99 vs $549).
For boat and RV owners who charge below freezing and want a Group 24 battery with heating and Bluetooth built in. You pay a premium over budget brands for the heater, the app and the longer warranty.
Epoch $549Prices 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 Renogy Core Mini 12V 100Ah DuoHeat for value ($0.28 per rated Wh vs $0.41 per rated Wh).
- Choose the Epoch 12V 105Ah Essential for warranty (11-year warranty vs 5-year warranty).
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 | Renogy Core Mini 12V 100Ah DuoHeat | Epoch 12V 105Ah Essential |
|---|---|---|
| Overall rating | 3.7/5 | 3.7/5 |
| Value 35% | 71 $0.28 per rated Wh | 49 $0.41 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Output 15% | 50 100 A continuous (about 1,280 W at 12.8 V) | 55 105 A continuous (about 1,340 W at 12.8 V) |
| Warranty 15% | 50 5-year warranty | 100 11-year warranty |
| Cycle life 10% | 67 5,000 cycles at 80% depth, maker rating | 50 4,000 cycles, maker rating |
| Cold weather 10% | 100 self-heating, so it charges below freezing | 100 self-heating, so it charges below freezing |
Specifications
| Renogy Core Mini 12V 100Ah DuoHeat | Epoch 12V 105Ah Essential | |
|---|---|---|
| Capacity | ||
| Rated capacity | 100 Ah (1,280 Wh) | 105 Ah (1,344 Wh) |
| Nominal voltage | 12.8 V | 12.8 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 5,000 at 80% depth | 4,000 |
| Price per Wh | $0.28 | $0.41 |
| BMS | ||
| Continuous discharge | 100 A | 105 A |
| Peak discharge | 300 A for 10 s | 200 A for 10 s |
| Max charge current | 100 A | 100 A |
| Low-temperature charging | Self-heating | Self-heating |
| Bluetooth monitoring | No | Yes |
| Series / parallel | up to 4 in series, 4 in parallel | up to 4 in series, 4 in parallel |
| Build | ||
| Case size | Group 22NF | Group 24 |
| Dimensions | 9.02 x 5.43 x 8.39 in | 10.25 x 6.75 x 9.00 in |
| Weight | 21.4 lb | 22.1 lb |
| Terminals | M8 x 1.25 | M8 female |
| Water resistance | IP65 | IP54 |
| Warranty | 5 years | 11 years |
| Released | 2025-07 | 2026-07 |
