Been using hearing aids for several weeks that run on size 312 zinc-air
button batteries. They last about a week then go dead along a very sharp
discharge curve.

I measured some used ones in a battery tester and their voltage has
returned to normal- around 1.45v. Not sure how long they'd last if tried
them back in the hearing aids- or it's a good idea to put them in there.

--
There are two theories to arguing with a woman. Neither works.

On 3/14/2020 11:59 AM, Wade Garrett wrote:
Been using hearing aids for several weeks that run on size 312 zinc-air
button batteries. They last about a week then go dead along a very sharp
discharge curve.

I measured some used ones in a battery tester and their voltage has
returned to normal- around 1.45v. Not sure how long they'd last if tried
them back in the hearing aids- or it's a good idea to put them in there.

I think it's highly unlikely they'll have any significant load capacity
but can't see what harm it could do to try.

Saw interesting whitepaper
https://www.audiologyonline.com/articles/battery-consumption-in-wireless-hearing-11899

--

In alt.home.repair, on Sat, 14 Mar 2020 12:59:34 -0400, Wade Garrett
wrote:

Been using hearing aids for several weeks that run on size 312 zinc-air
button batteries. They last about a week then go dead along a very sharp
discharge curve.

I measured some used ones in a battery tester and their voltage has
returned to normal- around 1.45v. Not sure how long they'd last if tried
them back in the hearing aids- or it's a good idea to put them in there.

I might have been reading about hearing aids two or three days ago -- I
do read about them at times, but maybe it was something else this time
-- and one of the things it said was to not rely on battery testers.

But I doubt they will last more than a little bit Cars start pretty
reliably these days, but when they didn't, if you ran down the battery
trying to start it, you could wait a few minutes, 10 minutes, and there
would be enough juice in it to try once or twice more. The chemical
reaction had time to catch up and provide more ions. But those extra
tries were a small percentage of what a good, fully charged battery had
in it.

OTOH what have you go to lose? I'm sure they're not going to catch on
fire or drip or anything like that.

On Sat, 14 Mar 2020 12:59:34 -0400, Wade Garrett
wrote:

Been using hearing aids for several weeks that run on size 312 zinc-air
button batteries. They last about a week then go dead along a very sharp
discharge curve.

I measured some used ones in a battery tester and their voltage has
returned to normal- around 1.45v. Not sure how long they'd last if tried
them back in the hearing aids- or it's a good idea to put them in there.
I've tried. Some lasted 5 or 6 hours. A few lasted all day. Some
were dead in less than an hour

After serious thinking Clare Snyder wrote :
On Sat, 14 Mar 2020 12:59:34 -0400, Wade Garrett
wrote:

Been using hearing aids for several weeks that run on size 312 zinc-air
button batteries. They last about a week then go dead along a very sharp
discharge curve.

I measured some used ones in a battery tester and their voltage has
returned to normal- around 1.45v. Not sure how long they'd last if tried
them back in the hearing aids- or it's a good idea to put them in there.
I've tried. Some lasted 5 or 6 hours. A few lasted all day. Some
were dead in less than an hour

Not in hearing aids, but I have recharged button batteries by holding
them on top of a flashlight battery completing the circuit with my
finger. Like you say though, it is a hit or miss kind of thing.

On Sat, 14 Mar 2020 12:59:34 -0400, Wade Garrett
wrote:

Been using hearing aids for several weeks that run on size 312 zinc-air
button batteries. They last about a week then go dead along a very sharp
discharge curve.

When I used those, I would remove them from the hearing aid at night
and place them, vent hole down, on a smooth surface. They lasted much
longer.

-dan z-



--
Protect your civil rights!
Let the politicians know how you feel.
Join or donate to the NRA today!
http://membership.nrahq.org/default....ignid=XR014887

Gun control is like trying to reduce drunk driving by making it tougher for sober people to own cars.

On 3/15/20 9:18 AM, slate_leeper wrote:
On Sat, 14 Mar 2020 12:59:34 -0400, Wade Garrett
wrote:

Been using hearing aids for several weeks that run on size 312 zinc-air
button batteries. They last about a week then go dead along a very sharp
discharge curve.

When I used those, I would remove them from the hearing aid at night
and place them, vent hole down, on a smooth surface. They lasted much
longer.

-dan z-

Hmmmm, definitely worth a try!

--
When I had minimum wage jobs, my goal was to better myself€” not to
better the minimum wage.
- @patsajak

On 3/15/20 12:13 AM, Clare Snyder wrote:
On Sat, 14 Mar 2020 12:59:34 -0400, Wade Garrett
wrote:

Been using hearing aids for several weeks that run on size 312 zinc-air
button batteries. They last about a week then go dead along a very sharp
discharge curve.

I measured some used ones in a battery tester and their voltage has
returned to normal- around 1.45v. Not sure how long they'd last if tried
them back in the hearing aids- or it's a good idea to put them in there.

I've tried. Some lasted 5 or 6 hours. A few lasted all day. Some
were dead in less than an hour

Yeah, probably not worth the fuss...plus having them go dead on you soon
right in the middle of something would be a PITA!

--
When I had minimum wage jobs, my goal was to better myself€” not to
better the minimum wage.
- @patsajak

On 3/14/2020 11:59 AM, Wade Garrett wrote:
Been using hearing aids for several weeks that run on size 312 zinc-air
button batteries. They last about a week then go dead along a very sharp
discharge curve.

I measured some used ones in a battery tester and their voltage has
returned to normal- around 1.45v. Not sure how long they'd last if tried
them back in the hearing aids- or it's a good idea to put them in there.


Same size I use for my hearing aids.. never had them rejuvenate, though.

--
Maggie