Well they are getting just a tad bit warm but not so much as like when I charge the NiCD's. The car is definately running better with those than the NiMH's so my next purchase will be a new charger. I still have the heat problem with the NiCD's but the car runs better and longer with, of all things, the stinking radio shack batt! BTW thanks for the link to the charger Duster! It will be at least the weekend befor eI can purchase anything but I'll post when I do the tests.