I have to get a new battery for SWMBO's Clio. After spending an hour trying to "Slide the plastic cover in the direction of the arrows" I resorted to tinternet, where a nice chap with a video said Arnold Swarzenegger couldn't slide the bleedin thing. Insert a small screwdriver into the open section (the bit for a keyring) and give it a sharp pull upwards so that you farce the sliding bit downwards.
OK enough blether. The battery is a Panasonic CR1220 3v, readily available and cheap. (£1).
What would be nice to know is, is the C5 key fob battery for my car anything similar? I don't need one, but if they are the same, then I could get a multi-pack.

( Yeah I know, I'm a bloody miser)

Rick.
2013 Citroen DS 5 D/Sport
2007 Renault Clio Campus sport. 1.2l
Sometimes the change doesn't work.