Battery Type:Li-ion Norminal capacity:20.8Ah Norminal voltage:22V Rated power:457.6Wh Standard charge:4.16A Fast charge:10.4A Standard discharge current:4.16A Max discharge current:10.4A Discharge cut-off voltage:16.8V Weight:2.5KG Dimension:All the technical specifications can be customized according to requirements. Fit for:Electric Bicycle,Folding Scooter Motor,Electric wheelchair and so on.