I went out today to start up the Challenger, hasn't been driven in about a month or so, and the battery was dead, and i mean dead! Door locks wouldn't work, window seal release didn't work so i couldn't shut the door all the way, no lights, no nothing!!! So i hooked the battery charger up to the remote posts in the engine bay, and every thing came back on immediatly, but it wouldn't roll the motor over even on start mode. I'm just leaving the charger on it now to build up a charge, but i can't figure out why the battery would go dead in the first place. I can't see anything i left on after it's last ride, lights were all off, doors were fully closed and locked, i just don't know! Anybody else have this problem? Any ideas? I'm gonna call the dealership some time next week and talk to them, could it be a bad battery?