Alkaline Button Cells (1.5V) reference
L736
Battery equivalent chart, replacements, and specs
L736 aliases and equivalent names
Common search labels and closely related markings include LR736, SG3. Packaging conventions vary, so confirm the compatibility grade, voltage, chemistry, and dimensions shown below before replacing the battery.
Voltage
1.5 V
Chemistry
Alkaline
Capacity
25–35 mAh
Size
7.9×3.6 mm
L7367.9 × 3.6 mm
Exact equivalents
Exact- LR41 — IEC alkaline designation
- AG3 — Common alkaline retail label
Conditional alternatives
Conditional- SR41 — Silver oxide — preferred for watches
- 392 — Silver oxide US watch label
- 384 — Silver oxide low-drain label
- SR736SW — Silver oxide IEC-style watch label
Do not use
Not Compatible- LR44 — LR44/AG13 is 11.6 mm wide — will not fit L736/LR41 compartments
Technical data
Specifications
| Specification | Value |
|---|---|
| IEC / Common Code | L736 |
| Chemistry | Alkaline |
| Nominal Voltage | 1.5 V |
| Capacity | 25–35 mAh |
| Cutoff Voltage | ~0.9 V |
| Drain Class | low |
| Dimensions (D × H) | 7.9 × 3.6 mm |
Typical applications
- Thin watches
- Digital thermometers
- Mini toys
- Laser pointers
- Hearing-aid accessories
Applications
Replacement Compatibility
Side-by-side comparisons
Frequently Asked Questions
Is L736 the same as LR41?
Yes for practical shopping. L736, LR41, and AG3 refer to the same 7.9 × 3.6 mm alkaline size family.
L736 vs SR736SW — which should I use?
Same size. SR736SW/SR41/392 is silver oxide (1.55V) and is the better choice for quartz watches; L736/LR41 alkaline is fine for toys and intermittent gadgets.
Can I use L736 in place of LR44?
No. L736/LR41 is much smaller in diameter than LR44/AG13.
Should I always trust cross-reference charts?
Use this guide as a starting point, then confirm with your device manual. Chemistry and voltage must match for safe operation.
Related Batteries
Review record and primary sources
Reviewed by PlainBattery Technical Review Desk on 2026-08-25. Checked: model and alias mapping, nominal voltage and chemistry, physical dimensions, capacity range and replacement warnings.
- 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.
Selection notes
If your old cell or manual says L736, buy LR41/AG3 alkaline for gadgets or SR41/392 for watches. Do not grab AG13 — that is the larger LR44 size.
Last verified Aug 25, 2026. Always confirm voltage, chemistry, and dimensions with the device manufacturer before replacing any battery.