My wife and I have a 2011 Dodge Avenger Mainstreet with about 90k miles. About 6 weeks ago, the battery went dead. Purchased a new battery and about a month later it went dead again. Now the battery dies with in a week of charging. I have tested the alternator and it was fine but I still replaced it, cleaned the battery terminals, checked the fuses. Still happens. I can see a draw when I test the battery but it comes and goes. Any ideas on what else I can test or do?