The WEIZE 12V 100Ah Group 31 is a lithium iron phosphate deep-cycle battery with built-in Bluetooth monitoring and low-temperature charge protection. It fits Group 31 trays, so it drops into many RV, boat and off-grid setups that used a lead-acid battery of the same footprint. Bluetooth lets you watch state of charge and cell data from a phone instead of wiring a separate shunt monitor. Against lead-acid it is lighter and delivers far more usable capacity, and against budget LiFePO4 packs the Bluetooth and cold-charge cutoff are the features that set it apart.
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Owners rate it highly and most praise the Bluetooth monitoring and the cold-weather protection. Complaints are few and center on the app and on charging in freezing conditions.
The WEIZE 12V 100Ah Group 31 is a LiFePO4 (lithium iron phosphate) deep-cycle battery with 1280Wh of energy. It is maintenance-free and ultra-lightweight compared with traditional lead-acid batteries. It is designed to swap into marine and RV battery systems.
A 100A BMS protects the battery, and low-temperature protection includes a low-temp cut-off. The case has an IP65 waterproof rating. Bluetooth connectivity lets you monitor and manage the battery in real time.
It powers trolling motors, RV appliances, marine electronics, CPAP devices, mini fridges, LED lights and phone charging. You can recharge it with a LiFePO4 charger, a solar panel and controller, a generator, or an alternator with a DC-DC charger. Up to 16 batteries can be connected in a 4S4P setup for RV, off-grid and solar systems.
