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 $549
A budget Group 31 replacement for lead-acid in boats and RVs that stay above freezing.
- 100 Ah (1,280 Wh)Capacity
- 100 AContinuous output
- 5 yearsWarranty
- $0.21Price / Wh
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
- Among the cheapest 100Ah Group 31 batteries from an established brand
- Standard Group 31 footprint fits common marine and RV boxes
- Pairs up to four in series or parallel
- No low-temperature protection or Bluetooth mentioned
- No independent test found for this standard version
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 | EF-114A14N-0D |
|---|---|
| Capacity | |
| Rated capacity | 100 Ah (1,280 Wh) |
| Nominal voltage | 12.8 V |
| Chemistry | LiFePO4 |
| Rated cycle life | 4,000 at 100% depth |
| Price per Wh | $0.21 |
| BMS | |
| Continuous discharge | 100 A |
| Series / parallel | up to 4 in series, 4 in parallel |
| Build | |
| Case size | Group 31 |
| Dimensions | 13 x 6.77 x 8.43 in |
| Weight | 24.2 lb |
| Water resistance | IP65 |
| Warranty | 5 years |
Alternatives in this size
A strong pick for compact 100Ah builds in vans and small boats. It matches the LiTime Xtra-Mini’s size and features for less money.
Amazon $279.99A low-cost Group 24 lithium battery with a phone app for boats, RVs and small solar setups. Buyers who need 36V or 48V banks, or cold-weather charging, should look elsewhere.
Amazon $209.99Compare
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