"The power bank is classified as a kind of dangerous goods. The battery is made of lithium-ion battery. If it is overheated, the probability of chemical reaction in the internal battery will cause a fire. If the power bank is under the plane and in the storage room, it is difficult to put out the fire in time, and I don't know when it will happen.<br><br>It caused great damage, so for safety reasons, the International Air Transport Association decided to introduce it.<br>Spare batteries or power sources can be boarded, but they are not allowed to be loaded inside the aircraft.
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