Comment by nharada
4 hours ago
> The devices are either dangerous, or they're not
That's not actually how it works though, it's all a risk and percentages. Nobody says "driving is either safe or it's not" or "delivering a baby is either safe or it's not"
That's not actually how it works though. There's a reason we restrict people to zero bombs allowed on board.
Only because bombs don’t charge as well. Aerosol cans and flammable liquids (e.g. alcohol) are allowed; in small quantities - just like power banks.
This is the first decent answer, which I appreciate. And while my comparison to a bomb may have been over the top, I don't think a comparison to shampoo is fair either. And in any case, I'm not so sure whether the limit on toiletries is all that sensical either.
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There are non-rechargeable power banks too though.
Correct, but I agree with the parent that this is a dubious case to apply that reasoning.
To make it clearer, imagine another context: "It's dangerous for a passenger to have a gun on board. Therefore, we're strictly limiting passengers to only two guns."
Like, no. The relevant sad case is present with one gun just as with two.
Of course, what complicates it is that these power banks present a small but relevant risk of burning and killing everyone on board. So yeah, you might be below the risk threshold if everyone brought two, but not three. So it's not inherently a stupid idea, but requires a really precise risk calculation to justify that figure.