The lowest-cost way into lithium for a 24V trolling motor on a small boat. Buyers who want an app should spend a little more on a Bluetooth 50Ah.
Amazon $252.99The Timeusb 24V 50Ah is the better 24V or 36V lithium battery overall, rated 3.4 to 3.3. The Timeusb 24V 50Ah leads on value. The Timeusb 24V 50Ah costs $47 less ($252.99 vs $299.99).
A low-cost pick for kayak and small-boat 24V trolling motors. It trades a little headroom for the lowest price in its size.
Amazon $299.99Prices 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 Timeusb 24V 50Ah for value ($0.20 per rated Wh vs $0.23 per rated Wh).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 24V 24V or 36V lithium battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | Timeusb 24V 50Ah | Redodo 24V 50Ah Bluetooth |
|---|---|---|
| Overall rating | 3.4/5 | 3.3/5 |
| Value 35% | 76 $0.20 per rated Wh | 66 $0.23 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Output 15% | 17 50 A continuous (about 1,280 W at 25.6 V) | 17 50 A continuous (about 1,280 W at 25.6 V) |
| Warranty 15% | 50 5-year warranty | 50 warranty not published (neutral score used) |
| Cycle life 10% | 50 4,000 cycles, maker rating | 50 4,000 cycles at 100% depth, maker rating |
| Cold weather 10% | 60 stops charging below freezing (no heater) | 60 stops charging below freezing (no heater) |
Specifications
| Timeusb 24V 50Ah | Redodo 24V 50Ah Bluetooth | |
|---|---|---|
| Capacity | ||
| Rated capacity | 50 Ah (1,280 Wh) | 50 Ah (1,280 Wh) |
| Nominal voltage | 25.6 V | 25.6 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 4,000 | 4,000 at 100% depth |
| Price per Wh | $0.20 | $0.23 |
| BMS | ||
| Continuous discharge | 50 A | 50 A |
| Peak discharge | 250 A | - |
| Low-temperature charging | Charge cutoff only | Charge cutoff only |
| Bluetooth monitoring | - | Yes |
| Series / parallel | up to 2 in series, 4 in parallel | up to 2 in series, 4 in parallel |
| Build | ||
| Case size | Group 24 | Group 24 |
| Dimensions | 10.24 x 6.61 x 8.27 in | 10.24 x 6.61 x 8.27 in |
| Weight | 21.2 lb | 21.1 lb |
| Water resistance | IP65 | IP65 |
| Warranty | 5 years | - |
| Released | 2024-10 | 2024-11 |
