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.

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quantummagic 4 days ago | parent | next [-]

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.

	▲	thih9 4 days ago \| parent [-]
		> I don't think a comparison to shampoo is fair either I’m not sure what you mean; when I Ctrl+F “shampoo”, this is the only hit I see.

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majorchord 4 days ago | parent | prev [-]

There are non-rechargeable power banks too though.