2015 Tesla Model S 12 Volt Battery Replacement

How to source and remove/replace the 12 Volt Battery in older Model S Tesla. The battery is hard to get to and has terminals opposite of most replacements out there. Tesla battery costs almost twice as much plus labor but is probably still worth it to pay Tesla mobile service to do it but if you are crazy, in a hurry, or desperate here's one way to get it done in a pinch.

[@NickSartorMD]

Had Comments turned Off. They are back on. Please add any advice if you know how to do this in an easier fashion.