Bioenno Power 12V 20Ah BLF-1220A vs Dakota Lithium 12V 54Ah

Last updated: October 31, 2026

The Dakota Lithium 12V 54Ah is the better 12V lithium battery overall, rated 3.5 to 2.7. The Dakota Lithium 12V 54Ah leads on value and output. The Bioenno Power 12V 20Ah BLF-1220A costs $206.01 less ($192.99 vs $399).

Bioenno Power 12V 20Ah BLF-1220A vs Dakota Lithium 12V 54Ah

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?

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 weightDakota Lithium 12V 54AhBioenno Power 12V 20Ah BLF-1220A
Overall rating3.5/52.7/5
Value 35%50 $0.58 per rated Wh23 $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%50 60 A continuous (about 770 W at 12.8 V)12 30 A continuous (about 380 W at 12.8 V)
Warranty 15%100 11-year warranty100 20-year warranty
Cycle life 10%33 3,000 cycles, maker rating17 2,000 cycles, maker rating
Cold weather 10%50 low-temperature charging protection not stated (neutral score used)0 no low-temperature charge protection

Specifications

Dakota Lithium 12V 54AhBioenno Power 12V 20Ah BLF-1220A
Capacity
Rated capacity54 Ah (691 Wh)20 Ah (240 Wh)
Nominal voltage12.8 V12 V
ChemistryLiFePO4LiFePO4
Rated cycle life3,0002,000
Price per Wh$0.58$0.80
BMS
Continuous discharge60 A30 A
Peak discharge100 A for 10 s40 A for 3 s
Max charge current27 A-
Low-temperature charging-None
Bluetooth monitoring-No
Series / parallelup to 4 in series-
Build
Case sizeGroup U1-
Dimensions7.75 x 5.3 x 7.5 in6.5 x 4.31 x 3.3 in
Weight14.3 lb5.4 lb
TerminalsM6Anderson Powerpole PP45 and DC barrel plug
Warranty11 years20 years
Released2019-072013-03

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