How to identify and react if something happens
The fact that a battery is swollen, too hot or producing smoke is a clear sign that something is wrong with it. If you notice anything different in your battery during the flight or in the airport, you should immediately contact a cabin crew member or a member of the airport’s staff. The temperatures that the battery may reach are quite high. Batteries are usually made of more than one cell. If one of the cells of the battery catches fire, it might spread to adjacent cells, provoking unexpected explosions and unforeseen flames. Do not try to put out the fire yourself, as you may worsen the situation or get hurt. Allow cabin crew to do their job. Should you lose your device or battery during the flight, immediately call a cabin crew member and do not operate your seat. Moving your seat can damage or crash the battery in the device and this can start a fire.