Thank you so much! You seems to still be the only easily found example of a battery like this. My struggle was with a used Fiat 500X 2016 my Mother recently bought. It had the exact same cover but oddly didn't have the small red peice you hav on the right witht the 2 screws. In fact for me I didn't need to loosed any nuts on my cover. I just needed to loosen the one directly on the positve terminal and it all came off in one large piece. However, thank you still for this video! It gave me a great start to figure this all out. Just wanted to add this to the discussion here in case it helped anyone else who also stumbles there way here.
I give her credit for doing the video. Having replaced our battery a couple of times now I know that loosening the two screws and removing the cables on the terminal are all you have to do. My first time I removed a number of nuts as she did but found that unnecessary.