I have had my Raider for about 7 months. I have used It about 20 times. Had loads of fun. But then it would run a short distance and stop. I recharged it and It did the same thing. It didn't seem like a mechanical problem so replaced the 2000 mah battery with a 3000. And it ran faster and longer. Whoopee! But after 3 or 4 runs it did the same thing. Does this problem sound familiar to anyone?