Citing safety concerns, Southwest Airlines will no longer allow passengers to charge devices with a power bank stowed inside a carry-on bag—going further than current FAA guidance.

The airline says passengers may have already seen notifications about the industry-leading rule when using the airline’s app.

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.

The carrier will require passengers to keep lithium batteries visible while in use in order to allow flight crews to respond more quickly in case one catches fire.

Southwest Airlines mandates visible portable chargers during flights to enhance safety, addressing risks of thermal runaway in lithium-ion batteries.

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,

Southwest Airlines announced it will require all portable device chargers to be kept in plain sight during all flights while they’re in use. The new policy comes after a number of lithium-ion batteries fires on flights worldwide in recent years.