Product Description Advantages Up to 6 A Continuous Balancing Fit for 50-1000AH Unlimited Cell Count LiFePO4-Li-Ion-Li-Polymer-Lithium Can balance during charging, discharging, and storage Keeps your Batteries Voltage difference Within 10mV Size 150 * 140 * 25 mm Function Balance for Li-ion Lithium,LiFePO4 battery pack Related Product There are other models for optional,such as 4S,5S,6S,7S,8S etc 8S Lithium Battery Balancer For 24V LiFePO4 Li-Polymer Li-ion LTO 18650 DIY