Hi, I have a iPad2 from the US, which obviously came boxed with a US charging plug. The print on this plug says the output is 5.1v 2.1A I have an UK iPhone charger plug which says the output is 5v 1A. Q1. If I use my iPhone charger, will it take 2x the time to charge my iPad2? Alternatively, the US charger is a 2-piece charger, with removable pins (like this http://www.buyincoins.com/images/show/ipad2-usb-charger-us.jpg). My UK iPhone charger is also a 2-piece. Q2. Can I simply swap the pins over and expect to get 'normal' charging to the iPad? Thanks very much.