I'm watching a video at the moment where the guy disconnects the battery maintenance module from the battery. I'm about to run outside to see if it works. Turning off that damn stop start becomes part of the start up procedure.
That was covered in another post on this site. Sure, it'll work. But you shouldn't be disconnecting that cable from the battery as it messes with the battery management system. I newer cars the battery is monitored depending on the age/state of the battery and you'll be messing that all up
Just use a Carista/OBD11 device to disable it (I've done this and it worked perfectly!). Or just buy one of those start/stop memory adapters that was posted in the other thread. All 3 of those options are dirt cheap and much better than disconnecting the cable which does other things too