12V 100Ah LiFePO4 Group 24 with Low-Temp Protection
$275
Key Specs
| capacity | 100Ah |
| voltage | 12V |
| chemistry | LiFePO4 |
| weight | 25.0 lbs |
| dimensions | 10.24 x 6.61 x 8.94 in |
| bms | 100A with low-temp cutoff |
| low_temp_cutoff | 32°F (0°C) |
| warranty | 5 years |
Pros
- ✓ Low-temperature charge protection prevents cell damage below 32°F
- ✓ Group 24 size is a direct replacement for most marine and RV batteries
- ✓ Full 100Ah usable capacity with LiFePO4 depth-of-discharge advantage
- ✓ BMS handles overcharge, over-discharge, and short-circuit automatically
Cons
- ✗ Low-temp protection cuts off charging, not discharging — plan accordingly in winter
- ✗ No Bluetooth connectivity
Detailed Review
Overview
Lithium iron phosphate batteries have one significant vulnerability that AGM does not share: they must not be charged at temperatures below freezing. Charging a LiFePO4 cell below 0°C causes lithium plating on the anode, a form of irreversible damage that permanently reduces capacity and creates a safety risk. Most budget lithium batteries leave this protection to the installer. This battery addresses the problem at the BMS level, cutting off charge current automatically when the internal temperature drops below 32°F.
For RV owners who camp in fall and winter, boaters who keep their vessel in year-round cold-water environments, and solar storage installations in northern climates, this low-temperature charge protection is not a luxury feature — it’s a basic necessity that protects what is otherwise a significant investment.
Key Features
The BMS in this battery monitors internal cell temperature continuously and inhibits charging current when the pack temperature falls below the cutoff threshold. Discharging can continue below freezing (LiFePO4 discharges safely at low temperatures), so your loads remain active — only the charge circuit is interrupted until the battery warms. Once temperature rises above the cutoff threshold, charging resumes automatically.
The Group 24 form factor provides a direct swap for the majority of marine trolling motor batteries, RV house batteries, and solar storage units in this class. Standard terminal placement means no wiring changes in most installations. At 25 pounds, it’s approximately half the weight of an equivalent AGM.
Performance and Capacity
In temperate and warm climates, performance matches any quality LiFePO4: flat discharge curve, full depth-of-discharge capability, and 4,000+ cycles. The real value of the low-temperature feature emerges in mixed-season or cold-climate operation. Without it, a solar system charging a battery overnight in below-freezing temperatures could silently damage cells — with the built-in protection, the system simply waits for safe conditions.
Charge acceptance at up to 100A is consistent with fast recovery from solar or alternator charging, and the 5-year warranty provides solid coverage for the investment.
Who It’s For
This battery is the smart choice for anyone operating in environments where overnight temperatures regularly approach or drop below freezing. Cold-weather campers, winter liveaboards, and Northern-climate solar installations should prioritize low-temperature protection when selecting a LiFePO4 battery — and this Group 24 unit provides it cleanly in a familiar, drop-in form factor.
