Features Precise energy, perfectly aligned to the different functions of video, photo, and electronic devices Last much longer than ordinary alkaline batteries Low self-discharge rate Wider temperature tolerance Specifications: CR 1620 BLI 1 VARTA Technical details: (Replacement battery, no original battery) System: Lithium-ion (Li-ion) Voltage: 3,7 Volt Capacity: 700mAh Energy: max. 2,59 Wh Dimension (LxWxH): 39,35x31,1x5,2mm Weight: 111 gram