Thanks guys. No problems with the battery's. Run duel brand new batteries (duel motors)that are premium brand. Last time it was a case of the communetator gumming up, thus giving a poor contact for the brushes. We cleaned it all up and it was like new again, but after 6 months the same problem has risen its head. Just dont know how to stop this from happening. I have contacted stress free and they advised me that the motor has had its day and to wack a new motor on at a cost of around $800 plus freight. Im not sold, I think a motor should out last the life of a set of brushes.