re: Will airlines ban lithium batteries one day?

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If you don't want to believe me go ahead, they were doing it last october on the way back from zurich.

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It's not a belief thing, I know for a fact it isn't done all of the time. Maybe you looked sketchy and they didn't trust you. Not only has it never happened to me, but I've never seen anyone have to power on their laptop, notebook, or anything of the sort.

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NOTHING to do with lithium batteries right?

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if they believe your phone/tablet/computer is packed with explosives.

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Batteries can blow up or melt when internal electrical components short-circuit, when mechanical problems crop up after a fall or an accident, or when they are installed incorrectly, Shearing said. But at the heart, all of these failures occur because one portion of the battery gets too hot and can't cool down quickly enough, creating a chain reaction that generates more and more heat.

Even at high temperatures, not all of the batteries failed — some had internal safety features that prevented the dangerous reaction. Of those that did fail, the batteries with internal supports stayed intact until the internal temperature reached a scorching 1,830 F (1,000 C). At that point, the internal copper materials melted, leading to the runaway chain reaction.

But the batteries without these internal supports exploded, likely because their internal cores collapsed, which could have short-circuited the internal electrical components, the study showed.

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