Expion360 12V 80Ah Group 24
#1 in SmallFull review
For boaters and overlanders who value a long US warranty and a sealed, bolt-down case over capacity per dollar.
Amazon $687.65 Expion360 $499$499
The Expion360 12V 80Ah Group 24 is the better 12V lithium battery overall, rated 3.7 to 3.5. The Expion360 12V 80Ah Group 24 leads on value. The Dakota Lithium 12V 54Ah costs $100 less ($399 vs $499).
Dakota Lithium 12V 54Ah
#2 in SmallFull review
For kayak anglers, ice fishing and small portable setups that need a light battery with a long warranty.
TackleDirect $399 BatteryMart $410$399
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 Expion360 12V 80Ah Group 24 for value ($0.48 per rated Wh vs $0.58 per rated Wh).
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 | Expion360 12V 80Ah Group 24 | Dakota Lithium 12V 54Ah |
|---|---|---|
| Overall rating | 3.7/5 | 3.5/5 |
| Value 35% | 61 $0.48 per rated Wh | 50 $0.58 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) | 50 60 A continuous (about 770 W at 12.8 V) |
| Warranty 15% | 100 12-year warranty | 100 11-year warranty |
| Cycle life 10% | 50 4,000 cycles at 100% depth, maker rating | 33 3,000 cycles, maker rating |
| Cold weather 10% | 60 stops charging below freezing (no heater) | 50 low-temperature charging protection not stated (neutral score used) |
Specifications
| Expion360 12V 80Ah Group 24 | Dakota Lithium 12V 54Ah | |
|---|---|---|
| Capacity | ||
| Rated capacity | 80 Ah (1,036 Wh) | 54 Ah (691 Wh) |
| Nominal voltage | 12.8 V | 12.8 V |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycle life | 4,000 at 100% depth | 3,000 |
| Price per Wh | $0.48 | $0.58 |
| BMS | ||
| Continuous discharge | 60 A | 60 A |
| Peak discharge | 100 A for 1 s | 100 A for 10 s |
| Max charge current | 40 A | 27 A |
| Low-temperature charging | Charge cutoff only | - |
| Bluetooth monitoring | No | - |
| Series / parallel | up to 4 in series, 4 in parallel | up to 4 in series |
| Build | ||
| Case size | Group 24 | Group U1 |
| Dimensions | 10.24 x 6.81 x 8.59 in | 7.75 x 5.3 x 7.5 in |
| Weight | 24 lb | 14.3 lb |
| Terminals | M8 x 1.25 brass | M6 |
| Water resistance | IP66 | - |
| Warranty | 12 years | 11 years |
| Released | 2023-03 | 2019-07 |