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 is the better 24V or 36V lithium battery overall, rated 3.5 to 3.4. The Epoch 36V 50Ah Heated leads on output, warranty and cold weather. The Power Queen 36V 50Ah Bluetooth wins on value. The Power Queen 36V 50Ah Bluetooth costs $319.01 less ($429.99 vs $749).
Power Queen 36V 50Ah Bluetooth
#7 in 36VFull review
A solid 36V trolling motor battery for boats with a Group 31 tray and a mid-size 36V motor. It is priced close to the LiTime and Redodo equivalents.
Amazon $429.99$429.99
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.
Which should you buy?
- Choose the Epoch 36V 50Ah Heated for output (100 A continuous (about 3,840 W at 38.4 V) vs 50 A continuous (about 1,920 W at 38.4 V)), warranty (11-year warranty vs 5-year warranty) and cold weather (self-heating, so it charges below freezing vs stops charging below freezing (no heater)).
- Choose the Power Queen 36V 50Ah Bluetooth for value ($0.22 per rated Wh vs $0.39 per rated Wh).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 36V 24V or 36V lithium battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | Epoch 36V 50Ah Heated | Power Queen 36V 50Ah Bluetooth |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Value 35% | 27 $0.39 per rated Wh | 69 $0.22 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) | 25 50 A continuous (about 1,920 W at 38.4 V) |
| Warranty 15% | 100 11-year warranty | 50 5-year warranty |
| Cycle life 10% | 50 4,000 cycles, 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
| Epoch 36V 50Ah Heated | Power Queen 36V 50Ah Bluetooth | |
|---|---|---|
| Capacity | ||
| Rated capacity | 50 Ah (1,920 Wh) | 50 Ah (1,920 Wh) |
| Nominal voltage | 38.4 V | 38.4 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 4,000 | 4,000 at 100% depth |
| Price per Wh | $0.39 | $0.22 |
| BMS | ||
| Continuous discharge | 100 A | 50 A |
| Peak discharge | 130 A | 250 A |
| Max charge current | 50 A | - |
| Low-temperature charging | Self-heating | Charge cutoff only |
| Bluetooth monitoring | Yes | Yes |
| Series / parallel | up to 1 in series, 4 in parallel | up to 1 in series, 4 in parallel |
| Build | ||
| Case size | Group 31 | Group 31 |
| Dimensions | 13 x 6.8 x 9.44 in | 13 x 6.77 x 8.43 in |
| Weight | 35 lb | 33.1 lb |
| Terminals | M8 female | - |
| Water resistance | IP65 | IP65 |
| Warranty | 11 years | 5 years |
| Released | - | 2024-09 |