Smart BMS 3S 4S 200A~100A LiFePO4 Battery PCB with Balace & Optional Uart BT RS485 for Freeshipping - Jiabaida BMS
Daly Smart 4s 12V 150A LiFePO4 BMS Battery Management System for LiFePO4 Battery Pack with Waterproof Bluetooth Fun Uart Can RS485 Communication - China BMS, Smart BMS | Made-in-China.com