i'm having problems starting my challenger. I take a new battery, throw it in the car start it....it runs fine until i shut it off, then it refuses to start again, i just end up suckin the juice out of the battery!!! i changed the ground cable and the pos. cable to the starter, jumped the car and it started fine, then i turned it off for 10 minutes (after a good 20 minute warm up) and it wont start again.. i'm charging the battery as we speak, but i dont feel i am solving the problem...HELP!!!