Im having the same problem!!! Every thing all new radio, recover, tekin rx8, tekin pro 4, servox servo. All in a new Losi ten scte. My MT-4 is saying low voltage on the car and its st 8.2 volatile at battery and speed controler. And I eaven checked voltage at the base of the pins on the rx8 thinking may be I had a bad solder connection. I just don't know what else I can do???