Energizer A23 Battery

The Energizer A23 battery is a compact 12-volt alkaline battery, similar in size and application to the A27, but slightly shorter and thicker.

Key Specifications of the Energizer A23:

• Type: Alkaline

• Voltage: 12V

• Size: 10.3 mm (diameter) × 28.5 mm (length)

• Other names: A23, MN21, 23A, V23GA, LRV08, GP23A

• Typical Use Cases:

  • Wireless doorbells

  • Keyless entry systems

  • Home security devices

  • Garage door remotes

  • Some older wireless headsets or toys

• Shelf life: Around 3–5 years