Siemens 101U Series Battery

AA size Lithium Thionyl Chloride Cylindrical Cell, High energy, high reliability 3.6 volt power source., Excellent memory backup power source., Low self discharge rate gives this cell a 10 year shelf life., Stable voltage and broad temperature range (-60° to +85°C).,
• Voltage: 3.6 Volts
• Capacity: 2600mAh
• Chemistry: Lithium
• Dimensions: Diameter 0.56" x Height 1.97"
• Terminals: Button Top