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Re: [OM] 357 batteries (was Olympus Power Bounce Grip 2)

Subject: Re: [OM] 357 batteries (was Olympus Power Bounce Grip 2)
From: Joel Wilcox <jfwilcox@xxxxxxxxx>
Date: Mon, 24 Aug 2009 08:31:57 -0500
On Mon, Aug 24, 2009 at 2:11 AM, Tim Hughes<timhughes@xxxxxxxx> wrote:
>
> http://www.maine.gov/dep/rwm/publications/legislativereports/pdf/buttonbatteriesreportjan09.pdf
>
> This article has general information about totally Mercury free button cells. 
> They say longevity is unknown at present, as well as incidence rates of 
> leakage etc.  Seems like capacity and other characteristics may be lower too.
>
> After 2011 these may be the only types of cells available in many places.
>
> Interestingly NL is suing some other Chinese manufacturers for infringing 
> their Hg free patents.
>
> Tim Hughes

Thanks for the link, which has a lot of good information about the
battery situation.  I hadn't realized that there was still as much as
2% mercury in some battery formulations.  It looks like the 357 form
factor is safe at least.  Interesting that Olympus was cited as a user
of the Hg-formulated SO batts via its "endo" products.

There seem to be a couple Sony formulations?  I wonder if the problem
some people have had with one of the online battery sellers which
offers them is that they are apparently pretty hard to come by.

I too have a small stash of the old 357s and I'm pretty careful to
remove them from my OM-2S and OM-4 when I'm not using them for a
period of time.

Joel W.
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