he is running a stock xl-5 stampede. The batteries we very hot. Not to hot to hold but still very hot. They are 2400mah but only taking 1700mah in charge but still its something, and I or his parents have little money to get anything new. I already bought the pede, gave him a propeak charger and the 3 2400's. For batteries I just have one SPC so I have nothing extra to let him use.