Battery, Battery Size N, Battery Chemistry Alkaline, Voltage - Batteries 1.5V DC, Standard Battery Pack Size 2, Capacity - Batteries 400 mAh, Battery Cross-Reference 4001, 810-2, E90, LR1, Application Camera, Car Alarm, Terminal Type - Batteries Button, Diameter 0.45 in, Height 1.15 in, Max. Operating Temp. 130 Degrees F, Min. Operating Temp. 0 Degrees F, Standards ANSI, Package Quantity 2