Lithium-ion batteries, commonly found in devices like laptops, phones, and tablets, are increasingly causing fires on airplanes. The FAA reports a 388% increase in such incidents on US flights since 2015, now averaging nearly two fires per week. These fires can be dangerous at high altitudes, potentially threatening the safety of flights. A survey by UL found that 87% of flight attendants are concerned about these batteries, and over a third believe airlines should enhance safety measures. While some airlines provide guidance on handling devices, they often lack detailed information on the risks and responses to battery fires. Passengers are advised not to pack lithium batteries in checked luggage and to monitor their devices for signs of overheating during flights. Immediate notification of flight crew in case of overheating can prevent dangerous situations. Despite the risks, many passengers remain unaware of the severity, with one in four admitting to packing batteries in checked luggage.