Best for boats that need 36V 100Ah in a shorter footprint with better waterproofing. Owners with room for a long case can save a little with the outboard model.
Amazon $929.99
The budget pick for 36V trolling motors in a Group 31 tray. Skipping Bluetooth saves money over the Power Queen and LiTime versions.
- 50 Ah (1,920 Wh)Capacity
- 50 AContinuous output
- Charge cutoff onlyCold charging
- 5 yearsWarranty
- $0.19Price / Wh
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- One of the cheapest 36V batteries here, so the lithium upgrade for a 36V trolling motor costs less
- Group 31 case replaces three 12V batteries
- Cold-weather charge cutoff protects the cells
- No Bluetooth app is listed, so checking charge needs a monitor
- 50 A limit is tight for 112 lb thrust motors at full speed
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its voltage. How we rank explains each one.
Specifications
| Model number | R36V50-50-TM-12-A100 |
|---|---|
| Capacity | |
| Rated capacity | 50 Ah (1,920 Wh) |
| Nominal voltage | 38.4 V |
| Chemistry | LiFePO4 |
| Rated cycle life | 4,000 at 100% depth |
| Price per Wh | $0.19 |
| BMS | |
| Continuous discharge | 50 A |
| Peak discharge | 250 A |
| Low-temperature charging | Charge cutoff only |
| Series / parallel | up to 1 in series, 4 in parallel |
| Build | |
| Case size | Group 31 |
| Dimensions | 13 x 6.77 x 8.5 in |
| Weight | 33.1 lb |
| Water resistance | IP65 |
| Warranty | 5 years |
| Released | 2024-11 |
Alternatives in this voltage
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 $749A 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 $429.99Compare
Compare the Redodo 36V 50Ah with any other 24V or 36V lithium battery →
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