Item Type: Battery Active Balancer Board_x000D_ Product Material: Plastic_x000D_ Model: None_x000D_ Indicator Light: With Working Indicator_x000D_ Scope of Application: Ternary Lithium Battery, General Lithium Iron Battery_x000D_ Product Size: Approx._x000D_ 22 x 16 x 4mm / 0.9 x 0.6 x 0.16in (2 Strings)_x000D_ 22 x 30.5 x 4mm / 0.9 x 1.2 x 0.16in (3 Strings)_x000D_ 22 x 45 x 4mm / 0.9 x 1.8 x 0.16in (4 Strings)_x000D_ Operating Voltage Range: 3.0V-4.5V_x000D_ Balance Start Condition: the Voltage Difference Between Two Adjacent Batteries is Greater Than 0.1V_x000D_ Balance Current: 1.3A (Balance Current is Related to Voltage Difference, the Smaller the Voltage Difference, the Smaller the Balance Current) 1Active Inductance Equalization: It will start when the voltage difference exceeds 0.1V, and the equalization accuracy of 50mV is not as high as that of capacitor equalization. 2Simple and Easy to Use: The accuracy is not as good as the balance board of the capacitor type, but it is low in price and high in cost performance among similar products. 3Applicability: Suitable for ternary lithium batteries and iron lithium batteries. 4Balance Current: 1.3A (balance current is related to voltage difference, the smaller the voltage difference, the smaller the balance current). 5Balance Function: The battery protection module has a balance function to maintain the balance of each battery and extend the life of the battery.1: Start wiring from 0V in order. 0V is the total negative pole of the battery pack. Don't connect the wrong wire, otherwise the chip will be burnt out._x000D_ 2: Use copper wire of 0.5 mm2 (18AWG) or more for connection. The thicker the cable, the better, and the shorter the better._x000D_ 3: The flashing indicator light indicates that the equalization start failed. Please check whether the connection wire is welded well. If the welding wire is welded correctly and the indicator light is still flashing, it means that the internal resistance of the battery is too large._x000D_ Start failure, please reduce the equalization current to use (remove all R1 resistors and R2 resistors on the circuit board and interchange, the equalization current is reduced to 0.5A).1 x Inductance Active Balance Board