Device charging advised for any UK flight

This new security advice doesn't just cover mobile phones, It includes portable music players, e-readers, laptops, anything that's electrical, or has a removable battery. The chances are you won't have your device checked, but the Government's advice is clear: wherever you're flying to, make sure it's charged, because anyone on any flight could now be asked to prove it turns on. But what happens if it won't? Passengers could charge it on the spot, or leave it at the airport, It could be posted to your home address, and some airlines say passengers could even re-book their flight.