I have the Duratrax IntelliPeak Twin-Pulse charger (
link). It can do 3.5A charges or 1A charges for receiver batteries. I didn't know the 1A charge was for 8.4v transmitter packs. My friend told me to try charging my 6 cell stick batteries at 1A since it heats the batteries up less and will make them last longer. It took about 5-6 hours but it peaked my discharged 6 cell 3000mAh NiMH packs.
Did I damage my batteries by running them on the 1A 8.4v charge, or is the charger smart enough to only charge them to 7.4v? I didn't know any better and blindly followed his advice, and now I am afraid I messed up all my stick packs.