A low-cost Group 24 lithium battery with a phone app for boats, RVs and small solar setups. Buyers who need 36V or 48V banks, or cold-weather charging, should look elsewhere.
Amazon $209.99
A well-documented Group 24 battery with an IP65 clear case, Bluetooth and 4-in-series support, for boats and trolling motors. It costs more than budget brands, but SOK publishes a full spec sheet.
- 100 Ah (1,280 Wh)Capacity
- 100 AContinuous output
- Charge cutoff onlyCold charging
- YesBluetooth
- 5 yearsWarranty
- $0.23Price / Wh
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
- Clear case lets you see the cells, BMS and connections without opening it
- IP65 sealed case suits boats and open trailers
- Up to 4 in series for 24V, 36V or 48V trolling motors and inverters
- Accepts up to 70 A charging, so a large charger or alternator setup refills it in under 2 hours
- Phone app shows charge level and cell data
- Costs more per watt-hour than most budget 100Ah batteries
- No self-heating: charging stops in freezing weather until the battery warms
- Store page and Amazon listing disagree on cycle life and expansion limits
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | SK12V100PC |
|---|---|
| Capacity | |
| Rated capacity | 100 Ah (1,280 Wh) |
| Nominal voltage | 12.8 V |
| Chemistry | LiFePO4 |
| Rated cycle life | 3,000 |
| Price per Wh | $0.23 |
| BMS | |
| Continuous discharge | 100 A |
| Peak discharge | 170 A for 4 s |
| Max charge current | 70 A |
| Low-temperature charging | Charge cutoff only |
| Bluetooth monitoring | Yes |
| Series / parallel | up to 4 in series, 10 in parallel |
| Build | |
| Case size | Group 24 |
| Dimensions | 10.24 x 6.69 x 8.27 in |
| Weight | 24.7 lb |
| Terminals | M8 |
| Water resistance | IP65 |
| Warranty | 5 years |
Alternatives in this size
For RVers and boaters who charge in sub-freezing weather. The built-in heater and Bluetooth monitoring justify the premium over the standard model.
Amazon $409.99For 12 V RV, van and boat owners who charge in cold weather and want heating and Bluetooth in one sealed battery. Skip it if you need a 24 V or 48 V series bank.
Amazon $559.99Compare
Compare the SOK 12V 100Ah Clear Case with any other 12V lithium battery →
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