12V 300Ah LiFePO4 314Ah Bluetooth Lithium Battery BMS 200A For RVs Marine Boot

WattCycle 12V 314Ah LiFePO4 Battery with Bluetooth. This three-tier design makes it one of the safest 12V 300Ah deep cycle battery options on the market. For those running three 12V 100Ah batteries in parallel, you’d typically combine to 300 Ah.

eBay