Left the key on like an idiot and killed the battery. Jumped it with a power box someone in the parking lot had. After the 20 min ride home I turned off the bike and it would not start again. Two days later I hooked the jumpers up to my wife's Chevy traverse with it turned off and got the bike to start. I then went on a 45 min ride in an attempt to charge the battery. Once I turned the bike off it wouldn't start again. Any ideas what it could be or what my first trouble shooting steps should be ? Battery is not even 2 months old.