This is an active BMS, it supports 7S-24S Li-ion and 8S-24S LiFePo4 12S-24S Lto. 1 JK smart bms (Built-in Bluetooth). 1 RS485 adapter(optional). 1 RS485 to USB cable (optional). JK Smart BMS 4S-8S 12V-24V 100A Li-ion LiFePo4 BMS w/1A Active Balance BT/RS485.
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