| LR44 | LR54 (LR1130) |
|---|---|
| 11.6 mm × 5.4 mm | 11.6 mm × 3.0 mm |
| 1.5 V alkaline | 1.5 V alkaline |
| Also called A76 or AG13 | Also called LR1130 or AG10 |
| Higher capacity because it is thicker | Lower capacity and designed for slimmer compartments |
Can I replace LR54 with LR44? No. Although both button cells are 11.6 mm wide and supply 1.5 V, an LR44 is 5.4 mm thick while an LR54 is only 3.0 mm thick. The LR44 may stop the battery cover closing or damage the contacts. Use the size printed on the old battery or in the device manual.
LR44 vs LR54: key differences
LR44 and LR54 are alkaline button cells with the same diameter and nominal voltage, but their different thickness and capacity make them physically incompatible in most devices. LR44 is common in calculators, toys, laser pointers and kitchen scales. The slimmer LR54 is used in watches, compact lights and other low-profile electronics.
LR44, LR54, LR41 and LR43 equivalents
| Battery | Common equivalent names | Size |
|---|---|---|
| LR44 | A76, AG13 | 11.6 mm × 5.4 mm |
| LR54 | LR1130, AG10 | 11.6 mm × 3.0 mm |
| LR41 | AG3, 192, 392 | 7.9 mm × 3.6 mm |
| LR43 | AG12, 186, 386 | 11.6 mm × 4.2 mm |
Equivalent codes must match the same physical size and chemistry. A76 and AG13 identify the LR44 format; LR1130 and AG10 identify the LR54 format; AG3 identifies the LR41 format; AG12 identifies the LR43 format. Similar voltage alone does not make two button cells interchangeable.
LR41 and LR43: the smaller and mid-size cousins
LR41 is the smallest of the four, at 7.9 mm × 3.6 mm and 1.5 V. It is common in quartz watches, small thermometers, calculators, laser pointers and pen-style flashlights. Its most widely sold equivalent is AG3, also labelled 192 or 392, all the same physical size and chemistry.
LR43 sits between LR54 and LR44 in thickness, at 11.6 mm × 4.2 mm and 1.5 V. It appears in cameras, calculators and some watches that need slightly more capacity than an LR54 but do not have room for a full LR44. Its direct equivalent is AG12, also sold as 186 or 386.
None of LR41, LR43, LR44 or LR54 should be substituted for one another based on voltage alone; all four are 1.5 V, but four different thicknesses. Always match the code printed on the old cell, or the size specified in the device manual.
How to choose the correct button cell
- Read the code stamped on the old battery.
- Check the device manual or battery-compartment marking.
- Match both diameter and thickness—not voltage alone.
- Do not force a thicker cell into the compartment or stack thinner cells.
You can select the exact size from our Panasonic 1.5 V alkaline button-cell listing.
Frequently asked questions
Are LR44 and LR54 interchangeable?
No. They have the same diameter and nominal voltage, but LR44 is 2.4 mm thicker. Use the battery size specified by the device manufacturer.
Is LR1130 the same as LR54?
Yes. LR1130, LR54 and AG10 commonly refer to the same 11.6 mm × 3.0 mm alkaline button-cell size.
Is A76 the same as LR44?
Yes. A76 and AG13 are common names for the 11.6 mm × 5.4 mm LR44 alkaline button cell.
Do LR44 and LR54 have the same voltage?
Both are nominally 1.5 V alkaline cells, but their different thickness and capacity mean one should not replace the other.
Is AG3 the same as LR41?
Yes. AG3, 192 and 392 are common names for the 7.9 mm × 3.6 mm LR41 alkaline button cell.
Is AG12 the same as LR43?
Yes. AG12, 186 and 386 are common names for the 11.6 mm × 4.2 mm LR43 alkaline button cell.
Can I use LR41 or LR43 in place of LR44 or LR54?
No. All four are 1.5 V alkaline cells, but each has a different thickness: LR41 is 3.6 mm, LR54 is 3.0 mm, LR43 is 4.2 mm and LR44 is 5.4 mm. Swapping one for another can leave the battery loose, stop the compartment closing, or cause poor contact and reduced runtime. Match the exact code on the old cell or the size stated in the device manual.
What can I use as a substitute for LR54?
The direct substitute is the same 11.6 mm × 3.0 mm cell sold under the names LR1130 or AG10. Do not substitute an LR44, LR43 or LR41, since all three are thicker and will not fit or seat correctly.
What is a good replacement for LR44?
A76 and AG13 are the standard alkaline replacements, since they are the same 11.6 mm × 5.4 mm cell under different brand names. A silver oxide SR44 (357) is also the same physical size and can be used for a steadier voltage and longer runtime, at a higher price.
What is an alkaline button cell battery?
An alkaline button cell is a small, flat, round 1.5 V battery used in watches, calculators, toys and other low-drain electronics. LR44, LR54, LR41 and LR43 are all alkaline button cells that share the same voltage but differ in diameter or thickness.
