I wonder where this comes from. On the Duracell web page, they state their
silver oxide button cells are "best suited for operation from -4°F to 130°F
(-20°C to 54°C)"
Now, a cell whose electrolyte is truly 'frozen' does not function, so if
they aren't frozen at -4 deg F I doubt they are frozen at the +20 deg F of
the typical home freezer.
Can the colder temperatures within the technology's normal operating range
cause some kind of electrolyte separation? I don't know - again I would like
to see an authoritative source.
> NO! *NEVER* store them in the freezer! Almost all batteries can
> withstand some temporary freezing, but storage in
> sub-zero-Celsius conditions for lengthy periods causes the
> various components of the electrolyte to separate out upon
> thawing, thus ruining the battery's ability to produce
> substantial amounts of current.
>
> Alternatively, physical expansion caused by freezing can cause
> the battery's seals to burst -- there goes your battery again.
On another note, it is interesting to see the differences between the
Duracell 357 and MS76 cells, either of which will work in our later OM
bodies:
The 357 has a total capacity of 165 mAh and peak current of 1.5 mA
The MS76 has a total capactiy of 180 mAh and peak current of 1.0 mA
Under heavy use, it looks like the 357 will probably keep delivering the
high current necessary to operate the shutter reliably for a longer period.
Chip Stratton
cstrat@xxxxxxxxx
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