Ryanair, Easyjet, TUI, Jet2 passengers with phones on low charge could be turned away

UK airline passengers with their phones low on charge could be denied boarding. Ryanair, Jet2, TUI, British Airways and Easyjet passengers have been warned over a strict and little-known mobile phone rule which they could fall foul of.

A key rule that affects mobile phones, tablets and laptops is in place for holidaymakers catching a flight from the UK this year. Passengers may be asked to demonstrate that their device can be powered on when boarding.

The UK Foreign Office warns: "Make sure your electronic devices are charged before you travel. If your device does not switch on when requested, you will not be allowed to take it onto the aircraft." On its websiter, airline Easyjet carries a warning.

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It says: "You also need to make sure that your device stays charged if it runs out of battery and you can't turn it on to scan your boarding pass as required, easyJet cannot accept responsibility if you are as a result not able to fly."

A travel expert warned: "If you cannot turn on your devices when requested by security personnel, they can take it from you, placing your holiday snaps in jeopardy." The main items banned from hand luggage include acid, billiard, snooker or pool cues and also builder's tools.

Other items banned include catapults and sling-shots, darts, explosives, gas cartridges, or gas cartridge re-fills, hammers, nails or screw-drivers, hypodermic syringes (unless supported by medical evidence) and also knives with blades more than 6cm.

Other items banned are lighter fuel, lighter top-up fuel (passengers are allowed to carry one disposable lighter in a clear re-sealable plastic bag), mercury, paint, razor blades, scissors - specifically, blades measuring greater than 6cm in length and sporting bats.

And toy or replica guns (plastic or metal) and umbrellas - unless foldable - are also banned.