Varta CR 1/2 AA 3V Lithium Battery Varta CR 1/2 AA Battery, half the size of a standard AA battery and double the voltage (3 volt). The Varta CR1/2AA, or CR14250 uses Lithium Manganese Dioxide chemistry for a high energy density and a wide operating temperature range of -40°C to + 85°C. Self discharge is low at less than 0.5% per annum at 20°C, giving an effective shelf life of 10 years. Suitable for CMOS replacements, diving computers and many other electronic devices. Maximum discharge current of 10mA; designed for low drain applications. Please note that these primary cells are NOT rechargable. Under no circumstances should they be placed in a charger. When fully discharged, please dispose of according to your local regulations. Dimensions: Height: 25mm Diameter: 14.5mm Weight: 11.5g Cell Size: ANSI: 1/2AA, 1/2R6, 1/2UM3 IEC: 1/2ER6 Replaces:SANYO: CR14250, CR12450 SE, CR14250SE, VARTA: 6127, CR1/2AA, CR 1/2 AA, CR 1/2AA, CR1/2 AA, CR-1/2-AAPLEASE NOTE: Reversed polarity with positive and negative terminals reversed from usual placement.