JBD Smart BMS 8S-20S 40A 50A 60A LiFePo4 Li-ion Battery with Balance Bluetooth #. JBD 7S-20S 40A 50A 60A 80A Li-ion Lifepo4 Battery Smart BMS Build-in BT w/ UART. 4S 12V/8S 24V/16S 48V 100A-250A LiFePo4 Protector Smart BMS Balance Bluetooth US.
eBay