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LR41 battery equivalent and size
LR41: 1.5 V alkaline button cell, 7.9 mm × 3.6 mm, about 35 mAh (53 mWh). Same battery: AG3, 192. Also fits: SR41.
1.5 Vvoltage
7.9 mmdiameter, 0.311 in
3.6 mmthick, 0.142 in
≈ 35 mAhcapacity
LR41: what to know
- AG3, 192 and L736 are the same cell; it is the standard battery in stick-style digital fever thermometers.
- The silver oxide 392 / 384 (SR41) is the same size and lasts longer.
LR41 equivalents
AG3192
- 392: silver
- 384: silver
Can I use another battery instead of an LR41?
| Battery | Size | Volts | Works? | Why |
|---|---|---|---|---|
| SR41 | 7.9 mm × 3.6 mm | 1.55 V | Yes | Same size; silver oxide lasts longer (an upgrade). |
| LR726 | 7.9 mm × 2.6 mm | 1.5 V | Short-term | 1 mm thinner: may sit loose; fine short-term. |
| SR726SW | 7.9 mm × 2.6 mm | 1.55 V | Short-term | 1 mm thinner: may sit loose; fine short-term. |
| SR731SW | 7.9 mm × 3.1 mm | 1.55 V | Short-term | 0.5 mm thinner: may sit loose; fine short-term. |
| Size 312 | 7.9 mm × 3.6 mm | 1.45 V | No | Zinc-air cells need air holes; not for sealed devices. |
What uses an LR41 battery?
- Digital thermometers
- Laser pointers
- Small toys and lights
Guides: digital thermometer
Silver oxide version: SR41, about 45 mAh vs 35 mAh, steadier voltage: better for watches, calipers and thermometers.