LiTime 12V 50Ah
#3 in SmallFull review
For kayak trolling motors, fish finders and small solar kits where weight matters more than runtime.
Amazon $188.99$188.99
The LiTime 12V 50Ah is the better 12V lithium battery overall, rated 3.4 to 2.7. The LiTime 12V 50Ah leads on value and output. The Bioenno Power 12V 20Ah BLF-1220A wins on warranty. The LiTime 12V 50Ah costs $4 less ($188.99 vs $192.99).
Bioenno Power 12V 20Ah BLF-1220A
#5 in SmallFull review
For ham radio operators and field electronics users who want a light pack with Powerpole connectors and a long warranty, used in dry conditions.
Bioenno Power $192.99$192.99
Prices were last checked October 31, 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 LiTime 12V 50Ah for value ($0.30 per rated Wh vs $0.80 per rated Wh) and output (50 A continuous (about 640 W at 12.8 V) vs 30 A continuous (about 380 W at 12.8 V)).
- Choose the Bioenno Power 12V 20Ah BLF-1220A for warranty (20-year warranty vs 5-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every small 12V lithium battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | LiTime 12V 50Ah | Bioenno Power 12V 20Ah BLF-1220A |
|---|---|---|
| Overall rating | 3.4/5 | 2.7/5 |
| Value 35% | 83 $0.30 per rated Wh | 23 $0.80 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Output 15% | 38 50 A continuous (about 640 W at 12.8 V) | 12 30 A continuous (about 380 W at 12.8 V) |
| Warranty 15% | 50 5-year warranty | 100 20-year warranty |
| Cycle life 10% | 50 4,000 cycles at 100% depth, maker rating | 17 2,000 cycles, maker rating |
| Cold weather 10% | 0 no low-temperature charge protection | 0 no low-temperature charge protection |
Specifications
| LiTime 12V 50Ah | Bioenno Power 12V 20Ah BLF-1220A | |
|---|---|---|
| Capacity | ||
| Rated capacity | 50 Ah (640 Wh) | 20 Ah (240 Wh) |
| Nominal voltage | 12.8 V | 12 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 4,000 at 100% depth | 2,000 |
| Price per Wh | $0.30 | $0.80 |
| BMS | ||
| Continuous discharge | 50 A | 30 A |
| Peak discharge | - | 40 A for 3 s |
| Low-temperature charging | None | None |
| Bluetooth monitoring | - | No |
| Build | ||
| Dimensions | 6.54 x 7.68 x 6.77 in | 6.5 x 4.31 x 3.3 in |
| Weight | 11.6 lb | 5.4 lb |
| Terminals | M8 bolt | Anderson Powerpole PP45 and DC barrel plug |
| Water resistance | IP65 | - |
| Warranty | 5 years | 20 years |
| Released | 2022-10 | 2013-03 |