5A Active Equalizer Balancer Board for 3S-4S 12V LiFePO4 Li-ion Battery LFP Lipo Lithium Compatible, Energy Transfer Capacitor, Whole Group Balance Module PCB, With Case, No Battery

Kind Reminder: Before connecting the balance cable to the balance board, be sure to check whether the connections of each section of the battery pack are correct, and properly insulate the bottom of the board and the battery string connection terminals. Otherwise, it will short-circuit and burn the board.
Working Voltage: 2.7V - 4.2V per cell, suitable for NCM Ternary polymer lithium battery (Li-ion) and lithium iron phosphate battery (LiFePO4). It can Not fit LTO battery. If it is used for 3S, the last line B4+ is empty.
(Note: The default protective case is a kit, not assembled; the transparent acrylic case has a yellow protective film that can be peeled off. )
Working Principle: Flying capacitor transfer charge transporter. The balancer board is connected to the battery to start the balance work, using the original brand new ultra-low internal resistance MOS, 2OZ copper thickness PCB, balance current 0- 5.5A; the more balanced the battery, the smaller the current. Reserved for the dormant switch wiring position (RUN); the dormant power-off mode working current is less than 0.1 mA, and the balance voltage accuracy is within 5mv! With under-voltage sleep protection, only detecting the battery voltage of B1 (NCM/LFP), the equalizer will automatically stop and enter the sleep state when the B1 voltage is lower than 2.7V, and the standby power consumption is less than 0.1 mA.
RUN Pad: you can add a switch to control the balancer. Default short connect, let balancer working. If disconnected, it will not work.
Start balanced voltage: 2.835V. The quiescent current is about 12mA, and the battery capacity is recommended to be used between 30-300AH! One yellow
LED indicator: It will always be on during normal operation, but it will not turn on when in sleep state (balanced end) or there is a problem. Equipped with VH 3.96 terminal by default, comes with 1.31 ft 18awg wire