Anyone who travels by plane these days knows that there are some pretty important rules when it comes to packing. But along with the usual rules around weapons, liquids and gels, portable power banks – and other electronic devices containing lithium-ion batteries – are facing increased scrutiny due to an increased risk of fire and burns from faulty batteries or misuse. The FAA reported 93 incidents in 2025, and 2026 is already seeing a peak, with 22 reported as of mid-April. In response, Southwest Airlines now requires passengers to keep portable chargers visible while in use, while Japan has completely banned power banks on flights.
So what’s the problem with devices containing lithium-ion batteries? Faulty lithium-ion batteries can overheat or short circuit, which can trigger a dangerous chain reaction called thermal runaway, a process in which increasing temperature inside the battery continually releases energy as it gets hotter and hotter. This increases the risk of fire, but the materials are also very reactive and flammable. Lithium fires are aggressive and self-sustaining. Efforts to put them out are likely to fail, and if successful, the fire may reignite. As reported by CBS News, an Alaskan Airlines flight had to land after an external battery on board caught fire. While not on board a plane, in another incident, a 75-year-old woman died from her injuries after a magazine exploded in her lap.
How can I avoid faulty lithium batteries?
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The simplest ways to limit your exposure to a lithium battery fire are to avoid cheap, poorly made devices and to follow the manufacturer’s recommendations when it comes to using the device correctly. Overheating and other complications can occur when batteries are overused, such as if too many devices are plugged in at the same time. Problems can also arise when lithium devices are improperly handled, damaged or stored incorrectly.
Always store batteries away from anything that is flammable or could potentially damage the device or battery. Store them at temperatures above 32 degrees Fahrenheit (0 degrees Celsius) and below 105 degrees Fahrenheit (40 degrees Celsius). Also try to avoid exposing them to extreme temperatures when traveling.
When boarding a plane, follow all safety instructions, which usually include information about devices containing lithium batteries — devices with these batteries should never be left in checked baggage. Following TSA carry-on battery restrictions is a great way to stay safe everywhere, not just at the airport or on a plane. Additionally, the best TSA-approved power banks on Amazon not only meet allowance requirements but are also generally well-received and considered safe by many users.
