I somehow managed to leave my ignition on overnight on my 08 450 and obviously when i came to the bike the next moring it was as flat as a pancake! I wasnt able to bump start it so i had to jump start it with the car to get it going. I had to use the kick start all day as there wasnt enough power to use the electric start, and even the ignition light was very dim. The problem is i did around 50 miles of road use to charge it up but ive gone to it today and theres still not enough power to use the electric start. Do these batteries charge with use or will i have to take it off and use a proper battery charger? Will i have done any lasting damage to the battery, or even worse to the bike itself by leaving the ignition on all night and jump starting it? Cheers.