American Airlines has announced new restrictions on portable chargers and power banks that passengers can bring on flights, citing fire safety concerns related to lithium-ion batteries.

The airline's updated policies come as aviation safety officials have increasingly focused on the fire risks posed by portable electronic devices containing lithium-ion batteries. These batteries can overheat, catch fire, or even explode under certain conditions, posing potential hazards in the confined space of an aircraft cabin.

The new rules specify limitations on the types, sizes, and quantities of portable charging devices passengers may carry in both carry-on and checked luggage. Airlines and aviation regulators have been working to balance passenger convenience with safety requirements as portable electronic devices have become ubiquitous among travelers.

American Airlines joins other major carriers that have implemented similar restrictions on lithium-ion battery devices in recent years. The Federal Aviation Administration has previously issued guidance to airlines regarding the transport of devices containing these batteries, following several incidents involving battery fires on aircraft.