1.5 V alkaline button
LR41 / 192 battery equivalent
BuyLR41Alkaline · 1.5 V · 7.9 × 3.6 mm
Safe swap, same cell: 192
Can I use one of these instead?
- SR41SWFits, read noteSame size, different chemistry
- SR41WFits, read noteSame size, different chemistry
- 312Do not swapSame size, zinc-air
- SR731SWDo not swapDifferent thickness
- SR726SWDo not swapDifferent thickness
- SR726WDo not swapDifferent thickness
- SR721SWDo not swapDifferent thickness
- SR721WDo not swapDifferent thickness
Also printed as: 192
1.5 V · 7.9 × 3.6 mm · Alkaline manganese button
LR41 is a listed designation for this alkaline manganese button cell, 1.5 V, 7.9 × 3.6 mm. Figures below are copied from the datasheets and charts linked at the bottom.
| Chemistry | Alkaline manganese button |
|---|---|
| Nominal voltage | 1.5 V |
| Diameter × height | 7.9 × 3.6 mm Energizer 192 drawing prints 7.90 / 7.55 mm and 3.60 / 3.30 mm. |
| Designation on the datasheet | IEC-LR41 |
| Weight | Energizer 0.5 grams (0.02 ounces) |
Can I substitute it?
Silver-oxide cells in this 7.9 × 3.6 mm outline are 384 (low drain) and 392 (high drain). LR41 is alkaline. Same caution as LR44 versus 357.
Size check at real size
Lay the old cell on the outline. This shows the top outline (diameter) and the side outline (height) at 1:1 once the screen is calibrated.
LR41 outline, 7.9 × 3.6 mm. Not a photograph, drawn from the figures above.
Calibrate this screen
Screens scale pages differently, so true size is only true after calibration. Hold a bank card or ID card (85.60 mm wide, ISO/IEC 7810 ID-1) against the bar and slide until the bar is exactly as wide as the card.
Saved in this browser only.
All cells on one true-size sheet
When printing, set scale to 100% or Actual size, not Fit to page.
Capacity
| Source | mAh | Test as printed |
|---|---|---|
| Energizer | 45 | 45 mAh (to 0.9 volts) |
Devices named on the Energizer guide
Watches, medical devices, laser pointers. See watches, medical devices, flashlights and lasers.
Same outline
- SR41SW Silver oxide, low drain (Renata scope chart) · 1.55 V · 7.9 × 3.6 mm
- SR41W Silver oxide, high drain (Renata scope chart) · 1.55 V · 7.9 × 3.6 mm
- 312 Zinc-air hearing-aid cell · 1.45 V (1.4 V on the other cited source) · 7.9 × 3.6 mm
Alkaline manganese button cells
An LR button is zinc/manganese dioxide with an alkaline electrolyte, nominal 1.5 V. Energizer's miniature alkaline handbook puts the open-circuit voltage near 1.6 V and then shows a sloping discharge, and it says the cathode swells as the cell empties. The handbook's own rule for using it in place of silver oxide is narrow: only where the device manufacturer recommends the substitution.
LR44 is the code Energizer sells as A76, designation ANSI/NEDA 1166A, IEC-LR44. The current A76 datasheet rates 150 mAh to 0.9 V on 6.8 kΩ at 21°C. Renata's scope chart, July 2016, rates LR44 at 110 mAh and states the outline as 11.6 × 5.4 mm. Same code, two tests, two numbers. The Energizer A76 product page lists AG13 among the labels that A76 replaces, which is why a search for AG13 lands here. It also lists 357, SR44 and SG13. Those last three are silver-oxide designations for the same outline. Energizer is telling you the A76 will fit and run the device. The handbook is telling you it will not hold voltage the way 357 does. Both documents are Energizer's. Fit is not the same claim as service life.
LR41, LR43 and LR54 are the smaller alkaline outlines, Energizer numbers 192, 186 and 189. AG12 and AG10 show up on Energizer's cross-reference on the same lines as those alkaline cells and as the silver-oxide cells of the same diameter and height. An AG10 search is answered with the alkaline LR54 facts, and the silver-oxide neighbours are linked beside it, not folded into it.
Sources
Last verified 2026-10-29.
- Energizer 192 product datasheet (192.pdf) Energizer, checked 2026-10-29
- Energizer alkaline miniature manganese dioxide handbook Energizer, checked 2026-10-29
- Energizer battery cross reference guide Energizer, checked 2026-10-29