brushless problems

14 cells and bec. when i hit full throttle it would have been no more then 4 seconds just enough to notice a serg only did this twice i know you dont take it to full throttle any longer then a couple of seconds . i would not even think i toke it to 4 seconds but that is what i guessed the longest i would of done it .i only feathered throttle. but i understand what you are saying . iwould not do this to my real car .