These MN21 / A23 batteries manufactured by Duracell are small cylindrical 12v cells. Not to be confused with the very similar in size 1.5v N type battery. An MN21 battery is commonly used in Bluetooth headsets, keyless vehicle entry systems, automatic gates and various other electronic key fob radio devices.

Is also known as: A23, K23A, LRV08, 8LR23, ANSI -1181A

Made by a renowned quality manufacture, Duracell
Excellent long life which easily out performs the cheaper brands.

• Type: Alkaline.
• Voltage: 12v
• Length: 28.9 mm.
• Diameter: 10.3 mm.
• Packaged: 2 Cells