Features APPLICABLE BATTERY: Working voltage from 2.7V‑4.2V, battery active equalizer is suitable for NCM ternary polymer lithium battery(Li ion), lithium iron phosphate battery, not for lithium titanate battery(LTO) WORKING PRINCIPLE: The flying capacitor transmits the charge transmitter, the balancer board is connected to the battery to start the balancing work, and the original ultra low internal resistance MOS, 2oz copper thickness PCB is used HIGH BALANCING ACCURACY: The balance current is 0‑5.5A, the more balanced the battery current is, the smaller the current is, reserved for the wiring position of the sleep switch, the working current of the sleep power off mode is less than 0.1mA, and th TECHNICAL PARAMETERS: The quiescent current is about 9mA, and the battery capacity is recommended to be used between 30‑200AH per balancer, the large capacity battery can connect multiple equalizers in parallel PROTECTION FUNCTION: Lithium battery active equalizer come with under voltage sleep protection, only the B1 battery voltage is detected. When the B1 voltage less than 2.7V, the equalizer will automatically stop and enter the sleep state, and the standby Specification: Item Type: Battery Active Equalizer Working Voltage: DC2.7-4.2V Battery Type: NCM ternary polymer lithium battery(Li ion) or lithium iron phosphate battery Package List:1 x Battery Active Equalizer1 x Special Cable Note:1. Use according to the parameter voltage.2. Before connecting the balance wire to the balance board, be sure to check whether the connection of each part of the battery pack is correct, and insulate the bottom of the board and the battery string connection terminals. Otherwise will short circuit and burn board. Package List 1 x Battery Active Equalizer 1 x Special Cable