4S 4.2v li-ion balancer board
The balance board is suitable for the li-ion battery pack BMS without balance function,so as to equalizing charge lithium battery charge function, make the battery pack each series charge at the same time.
Note:The balancing board must need BMS to use together,and the BMS is without balancing function
Parameter:
Balance Voltage for each single cell: 4.2V
Balance current for each single cell :66mA
size: 2.6cm * 2.05cm
Note:the balancer starts balancing when the one cell get 4.2V, The Cut-off Voltage is according to the BMS setting,but the bms cut-off voltage needs more than 4.25V which is much better.
4S balance board connect instruction:
4S balance board demo use. balance board should use together with other PCM which no balance function.
(4S balance board) + (4S PCM without balance) = ( 4S PCM with balance )
4S balance board can use as 3S balance board.
4S balance board can use as 2S balance board.
2 PCS 4S balance board use as 7S balance board, wiring diagram