12S 36V 100A LiFePO4 Battery Smart BMS Protection Board Bluetooth 485 CAN+NTC. US 8S 24V 100A-250A LiFePo4 Battery Smart BMS Protection Board BMS Balancer w/BT. 12V 24V 36V 48V 30A-250A LiFePO4 Smart (Fan) BMS w/ Balance + Bluetooth Module.