Different names, same alkaline size and voltage
Different names, same alkaline size and voltage
Usually interchangeable
LR44 vs AG13
LR44 vs AG13: Same Battery?
AG13 is the alkaline retail label for the same 11.6 × 5.4 mm, 1.5V cell as LR44 (also sold as A76 / 76A).
Last verified Aug 25, 2026
Are LR44 and AG13 interchangeable?
Fully interchangeable alkaline labels.
Shop by a fresh name-brand pack of the same outline. The retail prefix (DL, ECR, AG, A76) is usually a label, not a new size. Confirm voltage and chemistry before you treat any “almost the same” listing as a drop-in.
LR44 vs AG13 specs
They share 1.5 V and Alkaline and 11.6 mm diameter, which is why LR44 vs AG13 looks interchangeable on a store shelf. Highlighted rows, if any, are the shopping differences. Matching rows are why the two names get searched together.
Read physical fit before capacity. Extra milliamp-hours only help when the holder is built for that cell. A “better” spec in the wrong tray is a mechanical or voltage mismatch, not an upgrade.
Difference between LR44 and AG13 batteries
If you searched AG13 vs LR44, you are on the same comparison with the names reversed. The difference between LR44 and AG13 batteries is not the word “vs” — it is the specs that do not match after you ignore the similar photos.
LR44 is the IEC-style designation; AG13 is a common retail/AG code
LR44 is the IEC-style designation; AG13 is a common retail/AG code
Silver oxide upgrades (357/SR44) are optional, not required for label matching
Silver oxide upgrades (357/SR44) are optional, not required for label matching
How the size code works (LR44 vs AG13)
Coin and button codes are rulers, not brand slogans. The letters mark chemistry class. The digits encode size. LR44 measures 11.6 × 5.4 mm; AG13 measures 11.6 × 5.4 mm. Once you read the code that way, AG13 vs LR44 stops looking like a preference and starts looking like a fit check.
Can I use a LR44 instead of a AG13?
Usually yes. LR44 and AG13 belong in the same holder class when voltage, chemistry, and outline match. Use a fresh name-brand pack.
If the spent cell said AG13, LR44 is the correct replacement only when the spec table shows the same size and voltage. A similar prefix (LIR, ML, BR, 14500) is not this swap.
Can I use a AG13 instead of a LR44?
Usually yes — it is the same pair in the other order. AG13 vs LR44 does not change fit or voltage.
Buy the fresher authentic pack. Counterfeit retail wrappers are a bigger risk than the extra letter on the can.
Brand labels and aliases
Retail packs hide the IEC size behind house codes. LR44 also appears as AG13, A76, LR1154. AG13. Those prefixes do not change the outline unless the chemistry letters change (BR, LIR, ML, PR).
How to identify LR44 versus AG13
You do not need a full datasheet to settle LR44 vs AG13. You need the stamp, the tray, or a cheap pair of calipers. A store bin labeled only “button cell” or “3V lithium” will not do that work for you.
- Read the code on the old cell: LR44, AG13, and the brand prefixes that map to each one.
- If the print is worn off, check the tray, battery door, or user manual before buying.
- Measure diameter if the codes are gone: LR44 is 11.6 mm; AG13 is 11.6 mm.
- Measure thickness: LR44 is 5.4 mm; AG13 is 5.4 mm.
- Buy the matching code. Extra capacity or a thicker can only helps when the holder is built for that cell.
Choose LR44 when…
- Packaging or manual says LR44 / LR1154
Choose AG13 when…
- Shelf label says AG13 and you need the same alkaline cell
Compatibility and substitution
Do not confuse AG13 with AG3 (LR41) — the number after AG changes the diameter.
Do not stack cells, grind a can, or use foil as a permanent spacer to fake AG13 with LR44. Read the stamp, then the spec table. If the door will not close without force, you have the wrong height or diameter.
LR44 vs AG13 FAQ
Are LR44 and AG13 the same?
Yes, when both are alkaline 11.6 × 5.4 mm cells.
I searched AG13 vs LR44 — is this the right page?
Yes. LR44 vs AG13 and AG13 vs LR44 are the same pair. Fit, voltage, and chemistry do not change when you flip the order.
Should I always trust a cross-reference chart?
Use this guide as a starting point, then confirm voltage, chemistry, and physical size with your device manual or the marking on the old cell.
Review record and primary sources
Reviewed by PlainBattery Technical Review Desk on 2026-08-25. Checked: both model identities and dimensions, voltage and chemistry differences, physical fit, interchangeability conclusion and safety warnings.
- Energizer A76 / IEC LR44 Product Datasheet — Energizer Holdings, EBC-4407F. LR44/A76 dimensions, voltage, capacity test conditions and discharge curve.
- Silver Oxide (SR) and Alkaline Button (LR) Battery Specifications — Maxell. SR/LR model dimensions, voltage, nominal capacity and drain class.
Revision record: source citations and field-level review scope added September 11, 2026. See our sources and methodology and corrections policy.