I've been kicking around the idea of doing some battery
life testing for awhile now, since I can never seem to
find the information I REALLY want.

What I'd like to do is set up a test rig which allows me
to constant-current load a battery at, say, 100 uA,
1 mA, 10 mA, 100 mA, and just maybe, 1 A, and then
log the voltage on the battery for later analysis.

In the end, I'd like to have a moderate sample size (say,
four to eight cells of AAA through D cell, of each of the
top few manufacturers, plus the same quantity of 9V
batteries, at each discharge rate).  Lots of batteries,
of course, but I really would like to have some hard
data that I could use to give good estimates of runtime
for batteries.

Making the test rig, etc, is easy enough, but I'd like
to then make this info available online, but I don't know
if that'd open me up to legal action on the part of a
battery manufacturer who's displeased with my
findings.  Or, if anyone knows of a site with hard data
(NOT nebulous graphs made under poorly defined
circumstances, which is what I always seem to find),
I'm all ears!

Mike H.

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