When I bough the 2005 F650 CS two weeks ago a new battery was installed. Stayed on charger 24 hours before riding. Green Light! Rode it to work. Key turned off, Kill switch and lights were off. Started to go to lunch and battery dead. Nice guy jumped the battery with cables and it started and I drove home. Left it on the charger, it started the next day, and when I cut my baby off and left her for a couple of hours the battery is dead again. What is wrong? What do I do?