Hey all, every time I ride home to Horsham from Melbourne (4 hours) the battery is dead the next day. And not just flat. I charge the battery and it wont hold the charge at all.. It's happened 3 times now and I'm sick of buying new batteries. I took it to Geoff Taylor Motorcycles in Dandenong where I get it serviced and they tested it and said it is charging fine. But now its happened again i'm a bit angry. What could the problem be??