Excuse me for my total lack of knowledge on the subject, but I just got a Traxxas Rustler for Christmas with an EX Peak Plus charger. I'm trying to discharge my batteries, and the manual suggests discharging them to about .9 volts per cell, which works out to 6.3 volts overall. I set my charger to discharge, NiMH at .1 amps, and it goes at it for a couple of hours, then beeps. When I check the battery by putting it in my car, it still has quite a lot of charge left, so much so that I can hook it back up and run another discharge cycle without the charger protesting. It does the same thing when I try to cycle the battery as well.
I'm assuming that either my charger is faulty, or I have a complete misunderstanding of what the process of "discharging" is.