On Mon, 7 Apr 2014, Home!Guy wrote:

I'm seeing more and more stores selling huge packages (24/32/48) packs
of AA and AAA batteries, and usually not a name brand like duracell or
energizer.

So it's a crap shoot knowing how many milli-amp hours of capacity these
batteries have.

I have a gut feeling that the amount of juice in these things is
proportional to weight.

Are there any studies or has anyone tried to correlate the weight (mass)
of a brand new AA or AAA battery with how many watt-hours can be had
from them?

Twice I bought noname AA cells in packs of forty at a decent price, and I
had no problems with them. I couldn't tell any shorter period of use than
others.

They literally were no name, that being the house brand for Loblaws here
in Canada.

I try to use nimhs for the heavy duty stuff, but there is still lots that
need batteries but actually suffer from rechargeables because those have a
lower voltage (and likely don't keep recovering voltage as time goes on).
Things like remotes and flashlights (which in reality means I'd like to
have them ready when needed, rather than have to search for
rechargeables or charge them up before using the flashlight). So
it was good to find a cheap source of AAs. Sadly, they dont' seem to
have that forty pack anymore. The brand name large packs are of course
more expensive.

Michael