2S 3S 4S 3.2V 3.7V 1.3A Active Equalizer 18650 BMS Protection Board Li-ion Lifepo4 Lithium Battery Transfer Balance with

Description 2 3 4 strings 1 3A lithium battery active balance board with working indicator light Scope of application ternary lithium battery iron lithium battery all universalProduct size 22 16 4mm 2 strings 22 30 5 4mm 3 strings 22 45 4mm 4 strings Product weight 1 8g 2S 3 4g 3S 5 1g 4S Operating voltage range 3 0V 4 5VBalanced start condition the voltage difference between two adjacent batteries is greater than 0 1VBalance current 1 3A balance current is related to voltage difference the smaller the voltage difference the smaller the balance current Indicator light description The indicator light is on to indicate that the corresponding two batteries are being balanced The indicator light is off it means that the equalization has been completed or the pressure difference has not reached the starting conditions The flashing indicator light indicates that the equalization has failed to start see Note 3 Note 1 Start wiring from 0V in order 0V is the total negative pole of the battery pack Do not connect the wrong wire it will burn the chip Note 2 Use copper wire above 0 5 square millimeter 18AWG for connection the thicker the cable the better and the shorter the better Note 3 The flashing indicator light indicates that the equalization has failed to start please check whether the connecting wire is well welded If the wire welding is correct and the indicator light still flashes it means that the internal resistance of the battery is