With travel documents becoming increasingly digitised, knowing your phone has the charge to carry you from check-in through to customs is key for travellers.Although portable chargers may be vital to ensure a smooth journey, lithium-ion batteries commonly found inside power banks pose a fire risk to aircraft and confined cabin spaces if damaged.On 19 May, an easyJet flight from Hurghada in Egypt to Luton diverted to Rome when a passenger revealed they had a power bank in their baggage in the hold – and that it was charging a mobile phone. “The captain then took the decision to divert as…