Battery, 9V, Everyday, Capacity - Batteries 650 mAh, Standard Battery Series Fusion, Battery Chemistry Alkaline, Voltage - Batteries 9V DC, Standard Battery Pack Size 2, Max. Operating Temp. 130 Degrees F, Min. Operating Temp. -20 Degrees F, Shelf Life 5 yr, Standards ANSI 1604A, IEC-6LR61, Height 4.5 in, Overall Height 4.5 in, Width 3.8 in, Package Quantity 2