...put a meter on the battery with car running to ensure Alt. is putting out 13.5+ Volts...mine puts out 14.1+ volts or have any of the auto parts stores check it for you for Free......another thing you might want to check is your "Head Light Motors", sometimes they will continuously try to seat..watch the "turn knob" to see if its nudging back and forth while the head lights are down....in the mean time you can buy a battery cut off switch for 4or5 bucks easily installed in minutes until you find the cause of your problem..