Thread: What battery chemistry did Polaroid use 20 years ago in itsPolarpulse batteries?
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Jeff Liebermann Jeff Liebermann is offline
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Default What battery chemistry did Polaroid use 20 years ago in its Polarpulse batteries?
On Thu, 11 Jun 2015 20:31:53 -0700 (PDT), "
wrote:

I have four 20 year old "POLAROID POLARPULSE" batteries that still read 5.86V when I measure them. They are about 2" x 3" mounted on a heavyweight piece of paper that is 3" x 4". They have been kept at room temperature all the 20 years. It is amazing that after 20 years there is any charge left. I am wondering what chemistry Polaroid used in these batteries?

What number battery? P80, P100, P300, etc??
Size wise, I would guess(tm) a P100.

Possibly Zinc-Chloride.
http://users.rcn.com/fcohen/P100.htm
http://users.rcn.com/fcohen/Polaroid.htm
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