Ok, it's been at least two weeks since I've had a mechanical problem (probably 'cause I've been away from the bike for two weeks) so here's my issue of the day. I think my battery has leaked while I was away. Some acid has leaked onto the bike frame and I found a very small pool of fluid under the battery itself. The bike is running fine and it doesn't appear to be leaking any more. What is likely to have 'caused the leak and do i need to replace the battery?