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The Battery Bottleneck: Southwest’s New Power Limit Signals a Growing Aviation Security Risk
Fast Company April 8, 2026
Starting April 20, Southwest Airlines will restrict passengers to a single portable charger, a move driven by a 42% surge in lithium battery fires. For the frequent-flying executive, this highlights a critical infrastructure gap: our personal hardware is outpacing airline safety capabilities, making in-seat power the next essential 'office' amenity.
Key Intelligence
- •Southwest is breaking from international recommendations by capping passengers at just one portable charger starting April 20.
- •The airline now forbids storing chargers in overhead bins or checked luggage; they must stay in the cabin for immediate fire-crew access.
- •Lithium battery incidents are on a sharp incline, with 97 FAA-reported cases in 2025 alone as travelers carry more high-capacity devices.
- •Safety experts warn that battery fires can turn catastrophic in seconds, citing a 2025 incident where a fire burned through a plane's roof before takeoff.
- •While the policy won't involve aggressive bag searches, it relies on passenger education to mitigate what is essentially a thermal runaway problem.
- •Southwest is racing to install in-seat power across its entire fleet by mid-2026 to reduce passenger reliance on volatile external banks.