Working voltage 1.8V-4.5V, suitable for ternary lithium, lithium iron phosphate, lithium titanate.Working principle, the capacitor fit transfers the charge porter, and the balance board is connected to the battery to start the balance work. It adopts the brand new ultra-low internal resistance MOS, 2OZ copper thickness PCB, and the balance current is 0-5.5A. The more balanced the battery, the smaller the current. With manual sleep switch, the working current of sleep power-off mode is less than 0.1mA, and the balance voltage accuracy is within 5mv The quiescent current is about 12 mA. It is recommended that the battery capacity should be 60-300AH.With under-voltage sleep protection, the voltage will automatically stop entering the sleep state when the voltage is lower than 3.0V, and the standby power consumption is less than 0.1 mA.color:As shownMaterial:PCBsize:46 x 16mmPackage Contents:1 x Balance board1 x ShellOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.