A27 Energizer Battery

The A27 Energizer battery is a small cylindrical 12-volt alkaline battery often used in devices like:

• Car key fobs

• Garage door openers

• Remote controls

• Wireless doorbells

• Bluetooth trackers

Key Specifications:

• Type: Alkaline

• Voltage: 12V

• Size: 8 mm (diameter) × 28.2 mm (length)

• Other names: A27, MN27, 27A, GP27A, L828, V27A

• Shelf life: Typically up to 3–5 years