Features: 1) 23A battery, button cell, alkaline cell, alkaline button cell, cylindrical battery, alkaline battery, alarm alkaline battery, alarm battery, LR23A2) Brand: MITSUBISHI 3) Nominal Voltage: 12V 4) Average Weight: 7.35g 5) Nominal Capacity: 54mAh 6) Test Condition: continuously discharge at 20±2℃ under 20KΩ discharge load to 7.2V end-point voltage 7) Diameter: 10mm 8) Height: 28.3mm 9) Shelf Life: 2 Years10) Battery Applicable Products: Doorbell, Alarms, Car security alarms, etc.