https://www.newegg.com/p/3C6-06GK-026B0?Item=9SIC56GKU89195
JKBMS Smart BMS 4S-8S 200A 2A Active Balance Built-in Bluetooth with RS485 PCB Battery Protection...
Buy JKBMS Smart BMS 4S-8S 200A 2A Active Balance Built-in Bluetooth with RS485 PCB Battery Protection Board for LiFePO4 Li-ion LTO Battery PackJK-B2A8S20P with...