Griffin powerduo set which includes the powerjolt car charger. Great if you have an ipad and are missing the original charger. Been using my iphone one but it charges at 1amp instead of 2.1. Bought one of these after seeing a few favourable reviews and it's much faster, works great with my 4s too. Havent gotten round to using the powerjolt car charger yet but that charges at 2.1a aswell. 30 quid from the Apple store store.apple.com/uk/…amp and direct from Griffin store.griffintechnology.co.uk/ipo…pod so it seems like a bargain. Ps get it delivered to your local store for free instead of paying £3 delivery. Not sure if they're available instore as well.