2013 overnight dead batt
2013 has warranty charge the battery and take it to the dealer. Trade it in while your there.
Charge the battery and see if it does it again. If it does, charge it and disconnect it to see if the battery self discharges. Here's a link to a draw test: How To Perform a Parasitic Draw Test - EricTheCarGuy http://www.youtube.com/watch?v=KF1gijj03_0
did draw test all fuses and relays good and alt /radio good
You have a warranty for a reason. Take it to the dealer.
Looking for a Used Avenger in your area?
CarGurus has 4,543 nationwide Avenger listings starting at $2,199.
Search Dodge Avenger Questions
Dodge Avenger Experts