Amazon.com: DALY Smart BMS Li-ion 21S 72V 100A PCB Battery Management System with UART Communication CAN 485 Bluetooth Battery Monitoring Module and Cooling Fan for 18650 Battery Pack : Automotive
20S 21S 22S 23S 24S 25S 26S 27S 28S 29S 30S Lithium Battery smart BMS with current of 40A to 100A constant for electric vehicle Battery Pack Bluetooth PCB board – LLT
20S 72V 100A Discharge BMS | Minimotors Spare Parts - Minimotors USA