The combination of multiple equalizer boards supports cascading into a battery pack equalizer board with a higher number of strings. Balance method: Patented balanced architecture Flying super capacitor method, combined with point-to-point energy transfer algorithm for high-efficiency balance.Balance current: APP-custom setting: 1-4A, due to the use of constant current and constant voltage technology, the balance current has nothing to do with the battery voltage difference; Voltage balance accuracy: ±1mv (voltage measurement accuracy), ±1mv (voltage equalization accuracy), this product is calibrated by Keithley DMM7510. Under voltage protection sleep voltage: Under-voltage sleep voltage can be customized by APP: 1.5-4.2V; Drop detection: Support; Static working current: Balance off 10mA, balance on 25mA; Board Size: 5.51x5.0x0.87inch; Balance wire length: 15.7inch;? 3-LED indicator: Blue is the BT status indicator: always on, the link is successful, Flashing, link down; Red is the fault status indicator: always on, internal fault, Flashing, battery test failed; Green is the working status indicator: always on, the balance is completed Flashing, balanced work. He time required for equalization mainly depends on the battery capacity. It is normal for the capacitor to heat up during energy conversion.