u/Old_Introduction3009

Does anyone know of any common issues that could be causing parasitic draw on the 2016 Jeep Grand Cherokee (3.6L 75th Yr Anniversary Model)? Both main and auxiliary battery brand new, but recently, it’s been dying overnight. I would jump it, and it works perfectly fine, shows good voltage but after a few days it would just die overnight. I’m convinced it’s suffering from some form of parasitic draw but just wanted to see if anyone knows of any known common issues I could maybe start with first? Any help would be appreciated!