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LR41 vs SR41
LR41 and SR41 are interchangeable. They differ in voltage (1.5 V vs 1.55 V), chemistry (alkaline button cell vs silver oxide button cell). The SR41 holds about 1.3× the energy of the LR41 (45 mAh vs 35 mAh).
| LR41 | SR41 | |
|---|---|---|
| Type | alkaline button cell | silver oxide button cell |
| Voltage | 1.5 V | 1.55 V |
| Size | 7.9 mm × 3.6 mm | 7.9 mm × 3.6 mm |
| Typical capacity | ≈ 35 mAh | ≈ 45 mAh |
| Rechargeable | no | no |
| Other codes | AG3, 192, 392, 384 | 392, 384, AG3, LR41 |
Can I use SR41 instead of LR41?
Yes. Same size; silver oxide lasts longer (an upgrade).
Can I use LR41 instead of SR41?
Yes. Same size; alkaline is cheaper but fades sooner.
Where each one is used
LR41: digital thermometers; laser pointers; small toys and lights.
SR41: digital thermometers; watches; laser pointers and small lights.