I have a 99 dodge durango and the battery keeps going dead the alt tested good and there is no codes. I looked at night and there is no lights on in or out of the vehicle. I'm wondering if you know if there is any common electrical drains on this vehicle. and does the security system have anything to do with this problem.. it runs fine when you put a fully charged battery in it then in a couple of days you drive it and then the battery is dead when you go to start it again.