The UK Civil Aviation Authority (UK CAA) has identified power banks and vapes as the primary safety and fire risks on commercial aircraft [1].

This shift in risk profile underscores a growing danger in aviation safety, as the proliferation of portable electronics increases the likelihood of uncontrollable fires in aircraft cabins and cargo holds.

Lithium-ion batteries, which power most modern portable chargers and electronic cigarettes, can ignite if damaged or malfunctioning. The UK CAA said that the number of these devices found in hold bags has nearly doubled over the past year [1]. This increase in checked luggage creates a critical hazard because fires in the aircraft hold are more difficult for crews to detect and extinguish than those in the cabin.

Global data suggests the scale of the problem is vast. More than 100 million wrongly packed batteries have put flights at risk [4]. The high volume of these devices means that even a small percentage of failure can lead to frequent emergency situations.

"Pack right for a safe flight," the UK Civil Aviation Authority said [2].

Industry experts have noted that the trend is accelerating. Barry Collins said that portable charger incidents on planes are becoming increasingly common [3]. The risk is compounded by passenger unfamiliarity with battery safety regulations, leading many to place high-capacity power banks in checked bags rather than carrying them into the cabin where they can be monitored.

Authorities continue to urge passengers to keep all lithium-ion batteries in their carry-on luggage to prevent catastrophic fires in the cargo hold. The UK CAA said that following packing guidelines is the most effective way to mitigate the risk of thermal runaway events during flight.

“Power banks and vapes are now the biggest fire/safety risk on aircraft”

The transition of lithium-ion batteries from niche electronics to ubiquitous travel essentials has outpaced passenger education. As the volume of these devices grows—evidenced by the near-doubling of batteries in hold bags—aviation authorities must move beyond simple warnings toward more stringent enforcement or redesigned battery standards to prevent mid-air emergencies.