Specialty · 12 V
23Aequivalents
The 23A is also sold as A23, MN21, V23GA, 8LR932 and LRV08. They are the same cell under different brand and standard names, so any of them fits.
Same battery, other names
- A23
- MN21
- V23GA
- 8LR932
- LRV08
Size and specs
- Voltage
- 12 V
- Size
- 10.3 × 28.5 mm
- Chemistry
- Alkaline: eight tiny button cells stacked in one tube.
- Capacity
- about 40 to 55 mAh
- Type
- Specialty
What uses a 23A
Typical devices and how long a fresh set usually lasts. Yours may differ.
| Device | Takes | Lasts |
|---|---|---|
| Wireless doorbell | 1 × 23A | about 2 years |
23A vs 27A and AAA
Batteries people mix up with the 23A. Close, but not the same.
| Battery | Size, voltage | Difference |
|---|---|---|
| 23A | 10.3 × 28.5 mm12 V | This page. |
| 27A | 8 × 28.2 mm12 V | Also 12 V, but thinner (8 mm). It will rattle in a 23A holder. |
| AAA | 10.5 × 44.5 mm1.5 V | Similar look, but 1.5 V and longer. |
Good to know
- A23 is the common name, MN21 is Duracell's, V23GA is Varta's and 8LR932 is the IEC name.
- Looks like a short AAA, but it's 12 V. Never put one in an AAA device.
- Used in wireless doorbells, garage remotes and car alarm fobs.
Questions
What is the equivalent of a 23A battery?
The 23A is also sold as A23, MN21, V23GA, 8LR932 and LRV08. They are the same cell under different brand and standard names, so any of them fits.
What size is a 23A battery?
10.3 × 28.5 mm, 12 V. Alkaline: eight tiny button cells stacked in one tube.
What uses a 23A battery?
Common devices include wireless doorbell.
Battery Inventory for iPhone and iPad
Never look up the 23A again.
Battery Inventory remembers which battery every device in your home takes, reminds you when one is due, and counts the spares in your drawer, so you buy the right cell before the old one dies. The finder in the app knows every code on this page. Search any of them, or point the camera at a coin cell to read it.
- Battery change reminders, free
- Monthly smoke and CO alarm test reminders
- A spares drawer and shopping list
- Cordless tool packs and chargers too
No account needed. Smoke and CO alarm features are reminders only: the app can't see or test your alarms.
