Southwest Airlines is implementing a new safety policy, effective May 28, requiring passengers to keep portable phone chargers and power banks visible during flights when you're charging a device. The airline will prohibit the use of these devices while they're stored in carry-on bags or overhead bins,

Portable chargers and power banks might be useful additions to your carry-on luggage, but they’re also a potential fire risk. Now Southwest Airlines is tightening rules around their use on board aircraft.

Passengers on Southwest Airlines flights will soon be required to keep their portable chargers in plain sight while using them due to concerns about the growing number of lithium-ion battery fires in a new policy that other airlines may adopt.