Southwest Airlines has announced a new policy limiting passengers to a single lithium portable charger per flight. This measure aligns with recent international regulations aimed at strengthening operational safety in response to the increase in incidents related to lithium batteries.
New Cabin Safety Regulations
Starting April 20, Southwest Airlines passengers must comply with new technical provisions regarding the transport of external battery packs (power banks). Key changes include:
- Unit Limit: Only one portable charger will be permitted per passenger.
- Restricted Storage: Devices may not be stored in overhead bins.
- Mandatory Location: Units must remain with the passenger or be stowed in carry-on baggage placed under the seat.
- Charging Prohibition: Recharging portable chargers using in-seat power during the flight will not be permitted.
According to the airline, this decision seeks to “strengthen the capacity to contain and mitigate lithium battery incidents, reducing the risk of fires.”
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Alignment with Global Standards and ICAO
Southwest’s update comes shortly after the International Civil Aviation Organization (ICAO) established new global standards. The body ruled that the use of rechargeable battery packs will be limited to two per passenger and prohibited their recharging during flight—specifications that take effect immediately.
Other carriers, such as those within the Lufthansa Group, and nations like South Korea, had already implemented similar restrictions following serious incidents, including a fire on an Air Busan aircraft in 2025.
Lithium Battery Challenge in Figures
The U.S. Federal Aviation Administration (FAA) issued a safety alert in September due to the risks these batteries pose in passenger compartments. The data reflects a concerning trend:
- Incidents in 2025: 97 incidents involving smoke, fire, or extreme heat were recorded.
- Year-over-Year Increase: This figure surpasses the 89 incidents reported during 2024.
As a long-term strategy to reduce passenger reliance on external chargers, Southwest Airlines confirmed that its entire fleet will feature integrated in-seat power systems by mid-2027. While this transition is completed, the airline is prioritizing preventive safety by following FAA and ICAO guidelines to manage in-flight thermal risks.
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