Rover mods

I have come to the conclusion it not a good thing to Mod your rover yourself.My 1st rover died today.Plantraco sent me a gear set and I grinded them up in a few minutes of running them.So I thought it would be cool to make a lazer tag micro blimp.I took out the reciver board soldered some micro motors in place of the mabuchi 130 motors.I soldered one 3 volt battery in place and the reciver board started to smoke.It better to send the rover to plantraco with $35.00 and they will send you a new one.