Open Question: Why can't inexpensive AG3 batteries be used in seldom used hearing aids instead of much more...?2 October 2010, 6:37 pm
...expensive A312 battery?
Most people only use their hearing aids only part of the time.
They don't need expensive zinc air batteries which continuously deplete their usefulness after being uncovered whether the hearing aid is on or off.
The specs for SIZE of AG3 and A312 batteries is the same.
All batteries vary within a range of volts they produce in the exact same model.
The A312 produces 1.4 volts, more or less, for about 160 mAh whether the hearing aid is on or off. Few hearing aid users get a very large percentage of use out of this 160 hours.
It would be great for most hearing aid users if they could use cheaper AG3 batteries which puts out 1.55 volts, more or less and quickly declines in volts and the nominal mAh is only 43 hours.
I know AG3 batteries are readily available for less than 10 cents a piece even in small quantities.Source: Yahoo! Answers: Search forhttp://GlobalHearingServices.com