Something wrong or missing? Tell us
| Size 312 | A312 | |
|---|---|---|
| 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 | 1.45 volts | 1.45 volts Same |
| Kind | Hearing aid battery | Hearing aid battery |
Lasts longer: Same
As an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.
Buttons open amazon.com 🇺🇸, picked from your country.
Yes. Size 312 and A312 are two names for the exact same battery. Use either one.
Yes. Size 312 and A312 are two names for the exact same battery. Use either one.
They last about the same.
| Size 312 | A312 | |
|---|---|---|
| Diameter | 7.9 mm | 7.9 mm |
| Height | 3.6 mm | 3.6 mm |
| Nominal voltage | 1.45V | 1.45V |
| Typical capacity | 180 mAh | 180 mAh |
| Chemistry | Zinc-air | Zinc-air |
| Shelf life | 3 yrs | 3 yrs |
| Operating temp | 0 to 50 °C | 0 to 50 °C |