Left to right: AA, AAA, AAAA, N and A23 batteries An open A23 battery showing the LR932 cells with an intact battery The A23 battery (also referred to as 23AE, GP23A, V23GA, LRV08, 8LR932, 8LR23, MN21, L1028 or ANSI-1181A) is a dry battery consisting of eight LR932 cells, with a nominal voltage of 12 V. It is mainly used in small

electronic Electronic may refer to: *Electronics, the science of how to control electric energy in semiconductor * ''Electronics'' (magazine), a defunct American trade journal *Electronic storage, the storage of data using an electronic device *Electronic co ...

keychain A keychain (also key fob or keyring) is a small ring or chain of metal to which several keys can be attached. The length of a keychain allows an item to be used more easily than if connected directly to a keyring. Some keychains allow one or b ...

radio devices, such as keyless vehicle entry systems, home

security system A security alarm is a system designed to detect intrusion, such as unauthorized entry, into a building or other areas such as a home or school. Security alarms used in residential, commercial, industrial, and military properties protect against ...

s, garage door openers, and Bluetooth headsets.

Design

An A23 battery is cylindrical and approximately two-thirds the length of an

AAA battery The AAA battery (or triple-A battery) is a standard size of dry cell battery. One or more AAA batteries are commonly used in low-drain portable electronic devices. A zinc–carbon battery in this size is designated by IEC as R03, by ANSI C18.1 ...

, measuring 28.2 mm long and 10.0 mm in

diameter In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid fo ...

, with a typical weight of 8

gram The gram (originally gramme; SI unit symbol g) is a unit of mass in the International System of Units (SI) equal to one one thousandth of a kilogram. Originally defined as of 1795 as "the absolute weight of a volume of pure water equal to ...

s. An A23 battery is an 8- cell device with a nominal voltage of 12 V. The higher voltage is necessary for the

radio frequency Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around . This is roughly between the uppe ...

transmitting In electronics and telecommunications, a radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna. The transmitter itself generates a radio frequency alternating current, which is applied to th ...

and receiving devices which A23 batteries often power. It has a capacity of around 55 mAh. A23 batteries are constructed of eight individual LR932 alkaline

button cell A button cell, watch battery, or coin battery is a small single-cell battery shaped as a squat cylinder typically in diameter and high — resembling a button. Stainless steel usually forms the bottom body and positive terminal of the cell; i ...

s enclosed in a wrapper. The A23 battery is close in size to the N battery, which has a voltage of 1.25 V to 1.5 V. It is also similar to the

A27 battery The A27 battery (also known as GP27A, MN27, L828, 27A, V27A, A27BP, G27A) is a dry cell-type battery used in some small remote controls and some cigarette lighters. An A27 battery is cylindrical, 27.8 mm long and 7.7 mm in diameter, wi ...

, which has the same 12 V nominal voltage and almost the same length but is smaller in diameter by about 20% .

References

External links

Energizer A23 datasheet

MN21 datasheet from Duracell

Brand neutral drawing of A23 battery
{{Battery sizes Battery shapes

Design

See also

References

External links