If you're trying to test/refurb a lot of batteries, there is a lot to be said for picking up one of the old VST external chargers.

If nothing else, on really dead batteries, it makes it a lot easier to "dunk" them (i.e., charge until red light, remove, reinsert). Also, no possibility that the real issue is a bad power manager (I had that in my old Wallstreet).

John

P.S. If anybody is looking for a Wallstreet charger, PM me. I got rid of the computer but kept the charger (but no batteries).