Hi. My neighbour has a flat battery and I have a charger - but I can't remove the battery. Her car is a 206, W-registration (here in the UK) which makes it about 1999/2000 I think. I know this sounds daft but I can't see how to undo (what I guess is) a quick release connector on the positive terminal. (The negative is no problem - nut/bolt on clamp.) I don't want to force it and risk damage. Can anyone advise? Thanks