1. Operating voltage: 2.0 V 4.5 V 2. This module compensates for the adjacent voltage difference. When the voltage difference between adjacent batteries exceeds 0.1V, the internal chip triggers the balancing function until the difference is within 0.03V, then stops. During charging and discharging, any adjacent voltage difference is corrected to an value, reducing battery maintenance costs. 3. This board operates on the principle of adjacent compensation and cannot be used as a maintenance tool. It must be connected to the battery alongside a lithium battery protection board. The voltage difference generated during charging and discharging activates the balancing board to achieve energy transfer and balance. 4. Inductive energy transfer balancing board with a current of 1.2A for battery voltage balancing. It significantly equalizes battery voltage and enhances the overall efficiency of the battery pack!