For those that claimed disconnecting battery and not loosing anything - certainly, you guys are the lucky one with the magic Corvette from GM! Probably you also have one of those freak built engine that has more power than the rest of us mortals.
I am one of the unlucky few that suffer loosing window indexing and current time set with my radio - every time - no matter how fast I made the disconnect/reconnect - I get it - my car never came with one of those invisible permanent battery connection.
So, in panic, I did these in hope of making up by not having one of those invisible connection:-
So full of these unsubstantiated wild claims on the Forum.
Another good laught for the day!!!