My slash did the same thing with my brushless and dx3.0, I solved the problem by puting a capasitor( i think is what its called) made by spectrum,its because your voltage will drop and shut the truck off for 5-10 sec., this thing keeps a charge in it so it will not do that anymore, i think it was like $6.00, so its worth a shot, it cured my problem, good luck
Thanks for the info, I will try it out and see if it helps.