I know I'm bringing back a very old thread, but I wanted to thank everyone for the posts about the replacement procedure. I completed the project the old-fashioned way (no tender, no memory saver) on my 2013 ATS4 Premium 3.6L yesterday. I did the replacement because I started to get weird popup notifications after a start sometimes (last one said that 2 keys were taught or something)... and the battery charge voltage was often high in the morning (up to 15V) according to my radar detector (and the car, too).
The video links above at carcarekiosk were very good, except they skipped a relatively important step - that weird plastic thing over the positive terminal. It seems to be a fuse box and a terminal bar for the front-mounted jumper cable points, but the video doesn't tell you how to remove it What's more, the idiotic design puts the positive terminal right near the bracket, making it rather risky to remove the bracket without first disconnecting the negative cable (and maybe even afterwards). Again, I agree with others that this was as stupid design, overall.
In any case, because of that, I felt uncomfortable with leaving power on the battery (I was using a second battery connected to the front jumper points). Maybe using a tender would make more sense, but even that's still going to lead to sparks, etc. (It's funny how the videos show using a battery tender on a non-ATS setup... because it's difficult to do that on the ATS.
Anyway, I disconnected the battery without backup of any kind, and connected the new one. It took me a while to do this, due to the cover (which came off with a screwdriver in the slot near the "front" of the battery (where the covers can be opened))... so it was disconnected for longer than I would have preferred. Even then, after completing the install the car came up without any issues. Radio didn't lose presents or bluetooth pairings, windows work. Car didn't start the first time I pressed, but it did start the second time without too much drama. Drove the car without any issues either. Charge voltage was around 14.8V at first, but has dropped to about 14.6V after a short drive.
There's no reason the battery had to be covered this much without an access panel. And there's no reason the fusebox had to be mounted ONTO the battery, and still have exposed positive terminals right near the bracket like it does. I think they just didn't put much thought into the matter. That being said, it's not a terribly difficult task either, overall.
Lastly, just to get a dig on those "POS" Dodge pictures... sure the battery is easy, but the battery would probably outlast the rest of the car anyway, haha! JK of course! Though, granted, I've had my share of Dodges, and they were terrible to me... so I'm speaking from some experience.