Brand: MXJOSize: 18650Chemistry: IMRNominal Capacity: 3500mAhNominal Voltage: 3.7VDischarge: 10A Max Continuous, Rated 20A Max Pulse by MXJOPositive: FlatProtected: NO, UNPROTECTEDRechargeable: YesDimensions: 18.30mm x 65.36mmWeight: 47.1g