with the mondeo you have to reset the total closure stuff by resetting the window one touch open/close stuff, but other than that and the clock and trip computer stuff there's not a lot else but with modern cars, you might even find the car won't like the freshly charged battery as it's opperating at a different voltage to previously
remember that thread about the bmw that needed the new battery coded to the car? shit like that puts me off buying a new car as it's getting just way too complicated