> Now then, I take the unit apart, ready to install my single new
> Everyready 357 battery, and I discover that there are two
> batteries inside, and neither are the 357 variety. Instead, I
> find slightly different batteries marked A-76. As you can see
> from their spec's, they have a different chemistry and a different
> mah rating (Silver oxide vs. Manganese Dioxide and 175mah
> vs. 150mah).
Steve, I'm not sure I understand your concern. The 357 would seem to be a
superior battery, a perfect replacement, and it's even cheaper ! It's the
exact same size, has better discharge characteristics, and as an added
bonus, lasts longer (mah is a measure of the battery's life under load).
The only place the A-76 would be better is an application with high
intermittent current draw ... but I can't think of any reason your caliper
would do that.
Odds are, Fowler changed the battery specification after your caliper was
made, and forgot about it.
Randall
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