Working voltage: 2.7V-5V Suitable for ternary lithium, lithium iron phosphate. Working principle, the capacitor fit fers 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 stop automatically when the voltage is lower than 3.0V, and the standby power consumption is less than 0.1mA. Voltage Display 8S The accuracy of a single string is 0.001V, and the total voltage is 0.01V Colour:Black Material:ABS Package Contents: 1 * 8s Active balancer Only the above package content, other products are not included. Note: Light reflection 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.