What Makes the 12V-48V LiFePO4 Battery with Bluetooth BMS Ideal for Solar and RV Use? LiFePO4 batteries with built-in Bluetooth BMS offer high energy density, long cycle life (3,000–5,000 cycles), and tax exemptions in many… What Makes the 12V-48V LiFePO4 Battery with Bluetooth BMS Ideal for Solar and RV Use?