Interesting......... I know a few things changed in 18, with UConnect, and some updates to the PCM (hence why tuning isn't working just yet).
what changed in uconnect from the 17s? I know mine looks different than the 16s. I know the actual screen is different than the 16s.
Sorry to hear this. I faced issues with my 2017 scat and it stressed me out as well. Its sounding like some electrical/charging issue rather than Uconnect software to me but I don't know. My BCM and a few other modules failed resulting in whacky behavior. Once they replaced those, its working like a champ. Insist on the Uconnect SW update and Radio firmware update. Make sure you check the versions yourself to confirm they do it. Definitely purchase a jump start pack enough for that V8 too. Reach out to @dodgecares they do respond. Quietpeen helped me with this part. Good luck with this.
glad they put a new battery in, at least you will know its not that if it goes dead again. I hope you have no issues anymore but keep yourself ready "in case"