Product Details 

• 100% Brand new!
• 12V 27A Alkaline battery.
• High energy density, long life power source.
• Advanced engineering manufacturing, and consistently reliable performance.
• Multiple applications, widely used in remotes for garage door openers, wireless doorbells, ceiling fans, home security alarms, window security sensor, LED flashlight, toys, clocks, razors and so on.

Specification

• Model: A27 27A
• Chemistry: Alkaline
• Nominal Voltage: 12V
• Shelf Life: 5 Years
• Rechargeable: No(single use)
• Diameter: 8mm/0.19''
• Height: 28mm/0.06''