1. Active Balance Lithium Battery Energy Transfer Board Active Equalizer for Lithium Battery Efficiency Energy Transfer Balance. 2. Working Principle: Capacitive matching transfers charge carriers; the equalizer board connects to the battery to initiate balancing. Features a brand MOS with ultralow internal resistance, 2OZ copperthick PCB, balancing current 05.5A (the more batteries, the smaller the balancing current). Reserved wiring position for a standby switch; standby operating current is less than 0.1mA, and balancing voltage accuracy is within 5mV! 3. Capacitive Energy Transfer Balancing Board (precision 5mV, fullgroup balancing, nonadjacent balancing). 4. Operating Voltage: 1.8V–4.5V, suitable for ternary lithium, lithium iron phosphate, and lithium titanate. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin