Hi All, Had my Virago for a weekm today the battery was dead so I bemp started it and went to the shops started it and it was fine. When I got back there was a horrid smell in the garage, took the battery out and it was hot and was empty! I topped up the battery with D/I water and I'm now slow charging it. What happened, did the battery boil dry, is that what the smell could have been? What would cause this ?