Representative ImageA laptop fire aboard an American Airlines flight has put a familiar cabin safety problem back under scrutiny: the growing volume of lithium-ion batteries travelling at 35,000 feet. American Airlines Flight 2398, travelling from Atlanta to Dallas-Fort Worth on 21 August, landed safely after a passenger’s laptop caught fire in the cabin. CBS News reported that emergency crews met the aircraft at Dallas-Fort Worth International Airport. One passenger was treated and released at the scene.
For airlines, the significance goes beyond one malfunctioning computer. Laptops are now standard equipment for business travellers, while phones, tablets, wireless headphones and power banks have multiplied the number of lithium-ion batteries carried on almost every commercial flight. The risk from any individual device remains small. The exposure is growing.
A familiar device, a difficult fire
The laptop itself is not the central concern, the lithium-ion battery inside it is. Lithium-ion technology transformed portable electronics because it can hold substantial energy in a compact, lightweight battery. When damaged or defective, however, a battery can enter thermal runaway — a rapid, self-sustaining rise in temperature capable of producing smoke, intense heat and fire.
The US Federal Aviation Administration identifies damage, overheating, improper packing and manufacturing defects among the potential causes of battery failure. That has made lithium batteries a persistent aviation safety issue rather than an isolated hazard. The scale of their use explains much of the concern. International Air Transport Association passenger research found that 83% of travellers carry a mobile phone, 60% travel with a laptop and 44% carry a power bank. A business traveller can easily board with four or five lithium-powered devices before chargers and spare batteries are counted.
Incidents are attracting closer scrutiny
Battery-related events have been appearing with enough frequency to keep regulators and airlines on alert. Reuters reported in September 2025 that the FAA had issued a safety alert to airlines after recording 50 incidents involving lithium batteries that produced smoke, fire or extreme heat during the year up to that point. The regulator called for stronger passenger communication and reinforced attention to crew procedures and training.
The FAA cautions that its incident database covers events reported to or known by the agency rather than every battery occurrence worldwide. Even so, the direction of travel is clear. Aviation has spent years adapting its dangerous-goods rules to a cabin environment increasingly filled with rechargeable batteries.
The American Airlines episode is striking precisely because the device was unremarkable. It was not specialist equipment or unusual cargo. It was a laptop — the same item opened on tray tables across the global airline network every day.
Why airlines want laptops within reach
The obvious question is whether laptops would be safer in checked baggage, but generally its not the case. A battery overheating beside a passenger can be spotted quickly. Smoke, excessive heat, swelling or an unusual smell can alert passengers and cabin crew before the situation develops further. Deep inside a suitcase in an aircraft hold, detection and intervention become more complicated.
That is why the FAA advises passengers to carry portable electronic devices containing lithium batteries in hand baggage where possible. If a laptop or similar device is checked, it must be completely switched off and protected against accidental activation and damage. Spare lithium batteries and power banks face tighter rules: they are prohibited from checked baggage and must travel in the cabin.
This distinction matters for airlines and travel management companies because passengers frequently treat laptops, power banks and spare batteries as one category. Aviation regulations do not. The cabin also gives trained crew access to the device. If a laptop begins overheating, passengers should alert cabin crew immediately rather than attempt to handle an emerging battery fire themselves.
Most laptops remain well within the rules
The recent incident does not suggest that airlines are preparing to remove laptops from cabins. Nor does the available evidence support treating an undamaged laptop as inherently unsafe. Battery capacity is closely regulated. Under FAA guidance, rechargeable lithium-ion batteries of up to 100 watt-hours are generally permitted on passenger aircraft. Batteries between 101 Wh and 160 Wh require airline approval, while larger batteries are generally prohibited on passenger aircraft.
Most mainstream consumer and business laptops sit within the permitted range. Condition is another matter. A laptop with a swollen battery, damaged casing or persistent overheating should not simply be regarded as an ageing piece of office equipment. The FAA says damaged, defective or recalled lithium batteries that could produce dangerous heat must not be carried aboard unless they have been removed or otherwise made safe.
For corporate travel programmes, that creates an overlooked duty of care issue. Companies routinely set rules covering traveller security, data protection and approved booking channels; far fewer give employees practical guidance on the condition of the electronic equipment they take aboard.
Airlines face a problem of scale
Lithium battery safety is also becoming harder to manage through traditional passenger notices alone. Travellers once boarded with a phone and perhaps a laptop. Many now carry several rechargeable devices, including power banks whose capacity and condition may be difficult to establish at a glance. Airlines must communicate increasingly detailed restrictions to passengers who may encounter different policies across carriers and jurisdictions.
For travel managers and TMCs, battery rules are therefore moving closer to mainstream pre-trip compliance. Employees need to know where spare batteries can be packed, when airline approval is required and why damaged equipment should not travel. The commercial impact is less visible than a cancellation or an aircraft grounding, but an onboard battery event can lead to diversions, emergency responses, passenger injuries and operational disruption. Even a contained incident can take an aircraft and crew out of schedule.
Laptops are not about to disappear from aircraft. For business aviation in particular, that would be unrealistic. The more pressing question is how airlines manage a cabin carrying an ever-growing concentration of rechargeable energy. Better crew training, clearer passenger rules and closer attention to damaged batteries are likely to remain the industry’s first line of defence. The laptop may be routine. The battery inside it cannot be treated quite so casually!
