American Airlines and Delta Air Lines now prohibit recharging portable power banks during flights, joining Southwest Airlines in restricting carry-on device policies. Lithium-ion battery packs, once allowed in cabin luggage, face stricter rules as cabin fires linked to power banks surge. Southwest’s new limit of one charger per passenger aims to curb risks, while American Airlines banned in-flight outlet use for these devices.

The move reflects growing safety concerns, with power banks now the top cause of cabin fires among electronics. Critics argue policies may inconvenience travelers reliant on backup power for medical devices or long trips. Airlines cite Federal Aviation Administration guidelines urging stricter battery handling, though enforcement varies.

The restrictions highlight tensions between passenger convenience and mitigating fire hazards in confined cabin spaces.