Description
This is a 10 pack of 12V A23 alkaline batteries priced at $18.99 - the small cylindrical cell used in car alarm remotes, garage door openers, wireless doorbells, door sensors and laser pointers. If you have been searching under a different code, it is also sold as 23A, MN21, LRV08, V23GA and a dozen other names listed below.
The naming is the actual problem with this battery. Manufacturers each gave it their own code, so the same cell appears on shelves under fifteen different labels and people order the wrong thing or conclude their remote takes something exotic. It does not - it takes this.
Specifications
| Voltage |
12V |
| Chemistry |
Alkaline |
| Quantity |
10 batteries |
| Also sold as |
A23, 23A, LRV08, L1028, RVO8, MS21, MN21, E23A, K23A, V23GA, GP23A, 8LR932, 8LR23, VR22, 8F10R, EL12 |
| Typical uses |
Car alarm remotes, garage remotes, burglar alarms, wireless doorbells, door sensors, laser pointers |
What's in the Box
| 12V A23 alkaline batteries |
10 |
| Remote or device |
Not included |
Why Buy Ten Rather Than One
-
They are always needed at the worst time - a dead garage remote at 7am is not a shopping trip
-
Multiple devices use them - most households have three or four without realising
-
Far cheaper per cell - a single A23 at a service station costs a large fraction of this whole pack
-
Long shelf life - alkaline cells store for years, so spares do not go to waste
-
One code covers many names - whatever your manual calls it, this is almost certainly the cell
What Else Is an A23 Called?
A23, 23A, LRV08, L1028, RVO8, MS21, MN21, E23A, K23A, V23GA, GP23A, 8LR932, 8LR23, VR22, 8F10R and EL12 are all the same battery. The number 8LR932 is the closest thing to a formal designation and tells you what it actually is: eight small LR932 alkaline cells stacked inside one casing, which is how a battery this size manages 12 volts. If your device manual names any code on that list, this is the correct cell.
Why Do Car Remotes Use a 12V Battery?
Because a radio transmitter needs voltage to reach any distance, and a keyfob has no room for a stack of AAs. Packing eight tiny cells into one small casing gives 12V from something the size of half a AAA. The trade-off is capacity - an A23 holds very little energy compared to a normal battery, which is why it suits a device that transmits for a fraction of a second and then sleeps, and would be useless in anything that draws current continuously.
How Long Does an A23 Last in a Remote?
Typically one to two years in a car or garage remote used a few times a day. It fails gradually rather than suddenly: the range drops first, so you find yourself standing closer to the door before it responds. That shortening range is the signal to replace it, not a fault in the receiver. In a device left transmitting or with a stuck button, it will flatten in days.
Buyers are replacing car alarm and garage remote batteries, restocking wireless doorbells and alarm sensors, and keeping spares for laser pointers and keyfobs.
See Tech & Mobile Accessories, Automotive, or Essentials.
Frequently Asked Questions
How many batteries do I get?
Ten.
Is this the same as a 23A?
Yes. A23 and 23A are the same battery.
Will it fit my garage remote?
If the manual or the old cell names any code in the list above, yes.
Are they rechargeable?
No, these are alkaline. Do not attempt to recharge them.
What voltage are they?
12V.
How should I dispose of them?
Through a battery recycling point, not household waste.
How long do they keep in storage?
Alkaline cells store for years. Keep them cool, dry and in the packaging.
Fast Australian Shipping
Dispatched from Australia to Sydney, Melbourne, Brisbane, Perth, Adelaide, Hobart, Canberra and Darwin, with regional and remote addresses handled through the standard Australia Post network.
Screen colours vary between devices. WARNING: keep batteries away from children - swallowing a battery can cause serious internal injury. Do not disassemble, short circuit, recharge or dispose of in fire. Recycle at an approved collection point.
