I found an old email from Bob Shell regarding Zinc-Air and Wein cells (of
which he is the co-inventor), which may be of interest. The relevant
extract:
"The Weincell is a compromise. It works just like mercury cells, but has a
much shorter life. We modified the electrolyte to match the discharge curve
of mercury cells and made the air holes smaller to lengthen life, so they do
work better than generic zinc air cells. They last much longer in humid
climates. What kills them is evaporation of water from the gel electrolyte
inside, so keeping them moderately humid is essential for long life. "
Piers
-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
Of Tom Scales
Sent: 26 May 2004 12:50
To: olympus@xxxxxxxxxx
Subject: [OM] Re: source for PX625 mercury batteries?
If they have a tab, they are likely NOT mercury cells. They are likely air
cells, which will work, but die very fast.
Tom
----- Original Message -----
From: "John Wheeler" <wheelej@xxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Wednesday, May 26, 2004 5:11 AM
Subject: [OM] Re: source for PX625 mercury batteries?
>
> Dan,
>
> Whiltons Camera Service
> 251 Elizabeth St
> Sydney, Oz
> Ph 02 9267 8429
> Fx 02 9267 8562
>
> They have stocks of PX625 batteries at about $AUD7 each. I've bought from
> them for OM-1 and 35-RC Olys. A great little firm for repairs.
Commercially,
> bloody hopeless. (If you'd like me to buy for you and post, email me off
> list).
>
> The batts are 'Max Battery' Model MX625, individually packed in a plastic
> shell with a tab which has to be removed to activate the cell and they
have
> a spacer to allow their smaller diameter to fit centrally into our OM-1's
> battery ports etc.
>
> Hope this helps.
>
> John,
> Sydney, Oz.
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