Features: brand new and high quality This module is adjacent differential pressure equalization. The adjacent battery voltage difference reaches 0.1V or more. The internal trigger equalization work is performed. Until the adjacent battery voltage difference stops within 0.03V. There is adjacent pressure difference when charging and discharging on the battery pack. Trigger equalization. The battery pack voltage error is also pulled back to the desired value. Reduce battery maintenance costs. High-precision energy transfer equalization. Exclusive equalization IC. High current 1.2A energy transfer battery voltage balancer. Significantly balance battery voltage. Improve overall battery pack efficiency. Specifications: Material:PCB Type:4S,8S Net Weight:17-35g Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Lithium Battery Active Equalizer