Ron Hardin wrote:
MAHA C401FS does AAA and AA individually in any combination up to 4.
Accupower Accumanager 20 does AAA to D's individually up to 4, plus up to two 9v.

The old CCrane QuickCharger does up to 4 AAA to D's, but in parallel, so a dirty
contact will leave you with an uncharged battery since you can't monitor them.
This charger has a meter, though, and is handy to have. Also it will sometimes
start to charge a battery others will reject as defective, that can then be
charged on the others.

I bought the Ray-o-vac PS4 after seeing people in the GPS newsgroup rave
about it. Charges one to four AA/AAA batteries (or one 9V) in one hour,
separately (i.e. not in parallel); one failing battery drops out with a
flashing light while the others continue to charge. I'm really happy
with it.

--
"The truth, which is what elections are all about, is that the tax burden of
the middle class has gone up while the tax burden of the middle class has
gone down." -- John Kerry, August 26, 2004