Features 1、Battery Balancer: Using the internal energy transfer of the battery to transfer and balance the entire battery pack, no external power supply is required. 2、Sleep Protection: With sleep protection. When the voltage is lower than 3V, it will automatically stop and enter the sleep state to reduce the damage to the battery. With a protective case, which can better protecting 3S 4S 5A active equalizer and extend the service life. 3、Reliable in Work: Designed to have ultra low internal resistance MOS, 2OZ copper thickness PCB, equalizing current 0-5.5A, The more balanced the battery, the lower the current. 4、Wide Application: Allows for wide application on various power tools, scooters, wheelchairs, bikes and so on, very practical. 5、Easy to Install: Compact in size and light in weight as well, the convenient installation can be quickly completed within minutes. Specification Item Type: Battery Active Equalizer Material: PCB Recommended Application: For power tools, scooters, wheelchairs, bikes, etc. Package List 1 x Module 2 x Acrylic Board 1 x Terminal Wire 4 x Short Screw 4 x Long Screw 4 x Stud 5 x Washer