JIKONG Smart BMS JK-BD4A8S4P 4S-8S 40A Li-ion LiFePo4 LTO w/0.4A Active Balance

JK BMS, they are smart therefore with bluetooth and are equipped with a built-in active balancer, this will allow you to always have balanced cells and battery with full capacity. 1 JK smart bms (Built-in Bluetooth).

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