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 rates 3.7 among 100 ah class 12V lithium batterys; the Expion360 12V 80Ah Group 24 rates 3.7 among small ones. The Renogy Core Mini 12V 100Ah DuoHeat costs $146.01 less ($352.99 vs $499).

For boaters and overlanders who value a long US warranty and a sealed, bolt-down case over capacity per dollar.
Amazon $687.65 Expion360 $499Prices 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.
Scores side by side
These two sit in different size classes (100 ah class and small), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Renogy Core Mini 12V 100Ah DuoHeat | Expion360 12V 80Ah Group 24 |
|---|---|---|
| Overall rating | 3.7/5 | 3.7/5 |
| Value 35% | 71 $0.28 per rated Wh | 61 $0.48 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) | 50 60 A continuous (about 770 W at 12.8 V) |
| Warranty 15% | 50 5-year warranty | 100 12-year warranty |
| Cycle life 10% | 67 5,000 cycles at 80% depth, maker rating | 50 4,000 cycles at 100% depth, maker rating |
| Cold weather 10% | 100 self-heating, so it charges below freezing | 60 stops charging below freezing (no heater) |
Specifications
| Renogy Core Mini 12V 100Ah DuoHeat | Expion360 12V 80Ah Group 24 | |
|---|---|---|
| Capacity | ||
| Rated capacity | 100 Ah (1,280 Wh) | 80 Ah (1,036 Wh) |
| Nominal voltage | 12.8 V | 12.8 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 5,000 at 80% depth | 4,000 at 100% depth |
| Price per Wh | $0.28 | $0.48 |
| BMS | ||
| Continuous discharge | 100 A | 60 A |
| Peak discharge | 300 A for 10 s | 100 A for 1 s |
| Max charge current | 100 A | 40 A |
| Low-temperature charging | Self-heating | Charge cutoff only |
| Bluetooth monitoring | No | No |
| 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 | 10.24 x 6.81 x 8.59 in |
| Weight | 21.4 lb | 24 lb |
| Terminals | M8 x 1.25 | M8 x 1.25 brass |
| Water resistance | IP65 | IP66 |
| Warranty | 5 years | 12 years |
| Released | 2025-07 | 2023-03 |