This is SF653465SH25 1300mAh 11.1V Li-polymer battery. Type: Lithium Polymer Nominal Capacity: 1300mAh Nominal Voltage: 11.1V Configuration: 3S1P Dimensions( T* W* L) : 22.0* 34.0* 71.5mm ( middle value) Weight: Approx.: 104 g Maximum Continuous Discharge: 25C Maximum Continuous Current: 32.5A Ideal for use in RC models, airplanes& helicopters, RC toys, ect.