Anelok: battery holder, quality issues

[Werner Almesberger]

I wrote:
> Interestingly, even with this amount of damage, the holder still
> holds a battery, but of course less firmly than if intact.

I made a little test: with a ~ 100 g weight suspended on a wire
across the battery close to the round side of the BLP2032SM, the
battery still stays in place:

http://downloads.qi-hardware.com/people/werner/anelok/tmp/blp2032sm-1N.jpg

When I doubled the weight, the battery popped out, though. 100 g
are about 1 N. With a battery weight of 3 grams, this would
correspond to an acceleration of well above 30 g.  So unless
you're in the habit of bumping into things or are John Stapp
[1], it would still hold the battery even without relying on
additional support from case or lid.

[1] http://en.wikipedia.org/wiki/John_Stapp

- Werner