Thanks for the replies, sorted the 2nd problem, it was down to a faulty connection on the negative terminal, changed the terminal clamp & ok now. Clamping the battery in place still not fixed but now know why, the old battery had a square lip at bottom but the new battery (and all batteries I've looked at) have a angled lip at bottom, my battery clamp is designed for the old one! http://i18.photobucket.com/albums/b112/arnie70/untitled.jpg Have jammed a bit of wood under clamp to hold it in place for time being. Will I be able to get a different clamp?