Quick search number: PX3CKM. Warranty: 3 YEARS. Function battery performs: Camera, Power battery for cameras. Chemistry of battery: Lithium ion, Newer type of rechargeable, giving best performance for a rechargeable. Voltage: 3.7 V. Capacity: 720 m. Ah. Weight: 18 g. Dimensions: 40 mm. x 36 mm. x 6 mm.