This is the VARTA CR 1/2 AA S 3V 950mAh OEM Lithium Battery CNC Computer Batteries Features: Battery Size: 1/2 AA Battery Capacity: 950mAh Battery Chemistry: Lithium Battery Voltage: 3 Battery Terminal Type: Button Top Battery Shelf Life: 10 Years Brand: Varta 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 degrees C to + 85 degrees C. Self discharge is low at less than 0.5% per annum at 20 degrees 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.