Timeusb 24V 50Ah
#18 in 24VFull review
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 $252.99$252.99
The Timeusb 24V 50Ah rates 3.4 among 24V 24V or 36V lithium batterys; the Power Queen 36V 50Ah Bluetooth rates 3.4 among 36V ones. The Timeusb 24V 50Ah costs $177 less ($252.99 vs $429.99).
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.
Scores side by side
These two sit in different voltage classes (24V and 36V), 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 | Timeusb 24V 50Ah | Power Queen 36V 50Ah Bluetooth |
|---|---|---|
| Overall rating | 3.4/5 | 3.4/5 |
| Value 35% | 76 $0.20 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% | 17 50 A continuous (about 1,280 W at 25.6 V) | 25 50 A continuous (about 1,920 W at 38.4 V) |
| Warranty 15% | 50 5-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% | 60 stops charging below freezing (no heater) | 60 stops charging below freezing (no heater) |
Specifications
| Timeusb 24V 50Ah | Power Queen 36V 50Ah Bluetooth | |
|---|---|---|
| Capacity | ||
| Rated capacity | 50 Ah (1,280 Wh) | 50 Ah (1,920 Wh) |
| Nominal voltage | 25.6 V | 38.4 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 4,000 | 4,000 at 100% depth |
| Price per Wh | $0.20 | $0.22 |
| BMS | ||
| Continuous discharge | 50 A | 50 A |
| Peak discharge | 250 A | 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 1 in series, 4 in parallel |
| Build | ||
| Case size | Group 24 | Group 31 |
| Dimensions | 10.24 x 6.61 x 8.27 in | 13 x 6.77 x 8.43 in |
| Weight | 21.2 lb | 33.1 lb |
| Water resistance | IP65 | IP65 |
| Warranty | 5 years | 5 years |
| Released | 2024-10 | 2024-09 |