A23 battery

A23 battery

An A23 battery (also known as 8LR23 or ANSI-1181A) is a dry cell-type battery mainly used in small electronic key fob devices, such as keyless vehicle entry systems, home security systems, and garage door openers.

The shape and aspect ratio of the A23 battery are similar to those of a common AA battery. However, an A23 battery is much smaller than even an AAA battery, measuring only 28.9 mm long and 10.3 mm in diameter, with a typical weight of 8 grams. Furthermore, an A23 battery is an 8-cell device with a nominal voltage of 12 V, while AA or AAA batteries are single-cell devices with a nominal voltage of 1.5 V. The higher voltage is necessary for the radio frequency-transmitting and receiving devices which A23 batteries often power.

Other references

* Duracell: MN21
* NEDA: 1811A
* IEC: 3LR50
* Panasonic: LR-V08
* MS21
* VR22
* EL12


* Diameter: 10.3mm
* Length: 28.9mm

ee also

* List of battery sizes
* Battery (electricity)
* Battery recycling
* Battery holder

External links

* [http://www.duracell.com/oem/Pdf/new/21_OS.pdf MN21 drawing from Duracell]
* [http://www.batteryprice.com/index.asp?PageAction=VIEWPROD&ProdID=267 Size A23 12v Battery] for sale: includes more information on A23 properties
* [http://www.instructables.com/id/12-Volt-Battery-Hack!-You_ll-be-Surprised.../ Photos of opening up this battery to show and use the 8 small cells]


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