Technical ParametersWorking voltage 2.2V-4.5V, Li-ion Lipo Lifepo4 LTO Lithium battery universalWorking 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 ~4Smain color: blackMaterial: PC+MetalPackage Contents:2 x Active Balancer2 x CableOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.