Working voltage: 2.7V-4.5V Working principle, the capacitor fit transfers the charge mover, the equalization board is connected to the battery, and the equalization is started. The ultra-low internal resistance MOS, 2OZ copper thickness PCB Equilibrium current 0-5.5A, the more balanced the battery, the smaller the current, with manual sleep switch, sleep current mode is less than 0.1mA, the balance voltage accuracy is within 5mv! The quiescent current is about 12 mA. It is recommended that the battery capacity is 60-300AH. With under-voltage sleep protection, the voltage will stop automatically when the voltage is lower than 3.0V, and the standby power consumption is less than 0.1mA. Suitable for ternary lithium, lithium iron phosphate, lithium titanate. The words on the product may vary due to different product batches, but it will not affect the use. Specifications:12-16S Color:As Shown Material:PC Package Contents: 1 * Lithium Battery Active balancer