Electric Bicycle Battery CPM526-00 Rated capacity: 10Ah Voltage: 38.4V Battery Dimension:T*W*L=120*95*280mm(With Aluminium Case) Cell Dimension:T*W*L=8*78*230mm(Single cell ) Electric Bicycle Battery CPM527-00 Rated Cpacity:10Ah Volatge:51.2V Battery Dimension:T*W*L=152*95*280MM(Withi Aluminium Case) We are good at that field,and most of that batteries are for export,ther are: Excellent safety performance Lightweight High capability Low internal resistance Excellent discharge performance Every one battery including Aperfect LiFePO4 battery with BMS,Charger.