Feature 1.100% brand new and high quality 2.Suitable for battery voltage Balance Instructions: 1. When the equalization light is on, the equalization work is turned on, 2. The equalization light is off, the equalization circuit is in sleep state, 3. The equalization light flashes, indicating that the string is dropped, or the circuit is faulty. Equilibrium principle: This module is the adjacent voltage difference equalization, the adjacent battery voltage difference reaches more than 0.1V, the chip will trigger the equalization work, until the adjacent battery voltage difference is less than 0.03V and stop working, there is adjacent voltage difference when charging and discharging on the battery pack Triggering the equalization work, the battery pack voltage error will also be pulled back to an ideal value, reducing battery maintenance costs. technical parameter: The working voltage is 2.0V-4.5V, the ternary iron lithium battery is common, and the LTO lithium titanate battery is not suitable. Balance current: The adjacent voltage difference is more than 0.1V (the current is about 0.5-0.7A); The adjacent voltage difference is more than 0.2V (the maximum equilibrium current is 1.2A); The smaller the voltage difference, the smaller the equalizing current. Technical Parameters Working voltage 2.2V-4.5V, Li-ion Lipo Lifepo4 LTO Lithium battery universal Working principle, the inductor converts the transfer charge carrier. When the battery error voltage is above 0.1V, the balance work is started until the error is stopped at 30mv. The built-in improved ultra-low internal resistance MOS, the balance current is 0-1.2A, and the battery voltage difference is smaller. The smaller the current, the static power consumption does not exceed 20uA! With balance instructions! Balanced voltage accuracy within 30mv! Wiring line length 40cm pure copper 22awg terminal wire! High-precision energy transfer balance, exclusive balanced IC! 4S version can use for 1S ~4S 1.materialPC+Metal 2.colorAs the pictures shown 3.sizeas the picture shows Package include:1pc Note: Please allow minor error due to manual measurement. The colors may be a little difference for the different monitor display.