I have a friend who, like me, has a 21st Century 1/8 Stuart M5 tank. He told me after setting up for the winter in the garage, the tank will run for about 30 sec and then lurch forward a couple of times and then quit to run no more until he gives it a rest of 3mo min or more. He has replaced the battery but to me it seems he has a problem with something in the drive board electronics that is over heating. Any one have any similar problems or suggestions on how to rectify the problem?

Appreciatively,
Falke