Alinan 6pcs 3S 21V 4.2V Li-ion Balancer Board 18650 Li-ion Balncing Full Charge Battery Balance Function Protection Board

★Balance Voltage for each single cell: 4.2V; Balance current for each single cell: 66mA.
★Balancer is just a Auxiliary function, the balancing means when the battery charging, each series battery need with the same voltage. when ONE cell voltage get 4.2V, the other cells not, the first cell voltage will discharge to wait the other cells rising to the same level.
★The balance board is suitable for the li-ion battery pack BMS WHICH without balance function,so as to equalizing charge lithium battery charge function, make the battery pack each series charge at the same time.
【Mulitiple Protection】: Integrated output overvoltage protection, short circuit protection, overload protection; Integrated over-charge and over-discharge protection.
【Application】: The protection board is suitable for electric car, electric power assistant car, skateboard car, inverter, etc.