Southwest Airlines has announced that from April 20, passengers will be limited to carrying one portable charger on flights, according to a new policy reported by the Associated Press. The restriction also prohibits storing chargers in overhead bins and recharging them using the aircraft's power outlets.
The policy builds on existing rules requiring chargers to be kept visible so flight attendants can quickly respond if a device overheats. Portable chargers typically use lithium batteries, which can emit toxic fumes and reignite after being extinguished if they catch fire, according to the US Fire Administration.
In March, the International Civil Aviation Organization recommended limiting passengers to two portable chargers, but Southwest has gone further. Dave Hunt, the airline’s Vice President of Safety and Security, said the company will not search bags but will emphasise the dangers to customers during booking and at the airport.
Lithium battery incidents are a growing concern for airlines. The Federal Aviation Administration reported 97 such incidents in 2025, while UL Standards & Engagement noted a 42% increase in incidents compared to the previous year. Notable incidents include an Air Busan plane evacuation in January after a power bank fire, and an Alaska Airlines flight diverted in February due to an overheating power bank.
To reduce reliance on portable chargers, Southwest announced that its entire fleet will feature in-seat power outlets by mid-2027, providing a more consistent and convenient inflight experience.
