LR44 vs SR44 — What Is the Difference?
| LR44 | SR44 | |
|---|---|---|
| Voltage | 1.5V | 1.55V |
| Diameter | 11.6mm | 11.6mm |
| Thickness | 5.4mm | 5.4mm |
| Capacity | ~150mAh | ~190mAh |
| Chemistry | Alkaline | Silver Oxide |
| Common uses | calculators, thermometers, toys, general electronics | watches, cameras, medical instruments |
Are they interchangeable?
Yes — interchangeableYes, physically. Same size, same shape, they fit the same devices. SR44 is silver oxide with a more stable voltage and longer life. LR44 is alkaline and cheaper. For watches, SR44 is preferred because the steady voltage keeps the timekeeping accurate. For toys and general electronics, LR44 is perfectly adequate.
The verdict
SR44 lasts longer and performs better in precision devices. LR44 is cheaper and works fine in everyday electronics. Both fit the same compartments.
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