Finally I have a tc3 intellispeed 12t esc trinity calibur motor 12t motor and I just have puchaced epic 3300 mah NMH batteries. I have been running the 1500 mah nicads. The car lasted a lot longer on this battery and I noticed that the motor had gotten warmer but not to hot to touch. Well I turned off the car and charged another battery. The next day I put the charged battery in and the motor was bound up and and smoked if I tryed to accelerate it. I removed the motor and loosen the motor by grabbing the pinion gear. It works ok now. Is this normal or is it that I have one of trinity cheapest motors. I live in the high desert so it is dry and no humidity. Can that effect it.