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| SR41 | Size 312 | |
|---|---|---|
| Size | About as wide as a pea | About as wide as a pea Same |
| Thickness | As thick as 5 credit cards stacked | As thick as 5 credit cards stacked Same |
| Power | 1.55 volts | 1.45 volts |
| Kind | Watch battery | Hearing aid battery |
Lasts longer: Size 312 (about 300% longer)
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No. They’re the same size, but hearing aid batteries breathe air through tiny holes to work. Don’t mix them with ordinary button batteries.
No. They’re the same size, but hearing aid batteries breathe air through tiny holes to work. Don’t mix them with ordinary button batteries.
Size 312 (about 300% longer).
| SR41 | Size 312 | |
|---|---|---|
| Diameter | 7.9 mm | 7.9 mm |
| Height | 3.6 mm | 3.6 mm |
| Nominal voltage | 1.55V | 1.45V |
| Typical capacity | 45 mAh | 180 mAh |
| Chemistry | Silver oxide | Zinc-air |
| Shelf life | 5 yrs | 3 yrs |
| Operating temp | -10 to 60 °C | 0 to 50 °C |