Epoch 36V 50Ah Heated
#4 in 36VFull review
A premium 36V 50Ah for anglers who run high-thrust motors hard and fish in cold weather. Budget buyers get the same capacity for much less elsewhere.
Epoch $749$749
The Epoch 36V 50Ah Heated rates 3.5 among 36V 24V or 36V lithium batterys; the Battle Born 24V 50Ah Heated rates 2.8 among 24V ones. The Epoch 36V 50Ah Heated costs $250 less ($749 vs $999).
Battle Born 24V 50Ah Heated
#25 in 24VFull review
For cold-climate RV and boat owners who want a heated battery with a long US-backed warranty. Cheaper heated options give more capacity for the money.
Battle Born $999$999
Prices were last checked November 2, 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 voltage classes (36V and 24V), and each is scored against the reference points for its own class, so a rating says how well each does among its own voltage peers. How we rank explains each factor.
| Factor weight | Epoch 36V 50Ah Heated | Battle Born 24V 50Ah Heated |
|---|---|---|
| Overall rating | 3.5/5 | 2.8/5 |
| Value 35% | 27 $0.39 per rated Wh | 0 $0.78 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Output 15% | 75 100 A continuous (about 3,840 W at 38.4 V) | 17 50 A continuous (about 1,280 W at 25.6 V) |
| Warranty 15% | 100 11-year warranty | 100 10-year warranty |
| Cycle life 10% | 50 4,000 cycles, maker rating | 33 3,000 cycles, maker rating |
| Cold weather 10% | 100 self-heating, so it charges below freezing | 100 self-heating, so it charges below freezing |
Specifications
| Epoch 36V 50Ah Heated | Battle Born 24V 50Ah Heated | |
|---|---|---|
| Capacity | ||
| Rated capacity | 50 Ah (1,920 Wh) | 50 Ah (1,280 Wh) |
| Nominal voltage | 38.4 V | 25.6 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 4,000 | 3,000 |
| Price per Wh | $0.39 | $0.78 |
| BMS | ||
| Continuous discharge | 100 A | 50 A |
| Peak discharge | 130 A | 100 A |
| Max charge current | 50 A | 25 A |
| Low-temperature charging | Self-heating | Self-heating |
| Bluetooth monitoring | Yes | - |
| Series / parallel | up to 1 in series, 4 in parallel | up to 2 in series |
| Build | ||
| Case size | Group 31 | Group 27 / Group 31 |
| Dimensions | 13 x 6.8 x 9.44 in | 12.76 x 6.86 x 8.95 in |
| Weight | 35 lb | 31 lb |
| Terminals | M8 female | 0.25 in brass flag terminals |
| Water resistance | IP65 | - |
| Warranty | 11 years | 10 years |
| Released | - | 2026-06 |