So my car died again today. Drove to work, the window stopped rolling up half way. I turned the car off, turned the key to on and the window rolled up but slowly. After work, the car started but went into 'limp mode'. The car shut off a minute or two later. I jumped the car and it ran for another two minutes. I finally got the car home after an irritating adventure. Something is draining my battery while the car is off, or my alternator isnt charging the battery but its new. Ill check the alternator with a voltmeter tomorrow. I have a headlight wire that doesnt work but I drove with the lights off, could this drain my battery when off?