Two more airlines have joined a list of carriers banning the use of one popular item that many travellers swear by while aboard a flight.

Both Vietnam Airlines and Vietjet Air have taken the step to bar passengers from using power banks to charge their devices in the cabin. This follows similar moves by several other airlines this year, many of whom operate flights in and out of Manchester Airport .

The bans stem from increasing concerns over the safety of lithium batteries onboard. Just last week, the US Federal Aviation Authority (FAA) issued an updated warning following 50 incidents involving power banks onboard.

They stated: "Lithium batteries stored in passenger overhead bins and or in carry-on baggage may be obscured, difficult to access, or not readily monitored by passengers

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