Originally Posted by
Racerz27
What I didn't try, and I wish I would have. I didn't think of it at the time. Since I have 2 batteries. As soon as the issue started, I should swapped in the other pack quickly and went back on the track. That way I would know for sure if it's a battery issue. If it would go another 5 min or so until it starts acting up it's obviously the battery voltage. If it continued to shut down then it is most likely a heat issue somewhere. Most likely inside the ESC. Probably once it gets warm maybe there's a poor solder spot on the circuit board or something. Ill try this as well on Wednesday when I'm back at the track.
This still sounds like the ESC going into thermal shut down. It takes a while to get hot then once it hits the limit it shuts down, cools off and comes back on. However when it comes back on it is still hot internally and likely goes into thermal mode much quicker than original. Is your fan coming on when you turn on the ESC? I had mine plugged in wrong at first and it was not coming on. While it did not cause the issue you are having I still think that is it.