[dingaling]

I see the point you're trying to make; the authorities apparently accept a risk in terms of expensive equipment produced by corporations with strong lobbying funds, but decline that risk in terms of bottled liquids.

One fact that is overlooked is that there is actually a limit on the lithium-equivalent permitted per passenger just like there is a liquid-volume limit.

Last time I checked, the total maximum carry-on lithium-equivalent was 25 grammes which was about four smartphone batteries or two-dozen AA cells. Now as to whether that's an acceptable risk is for someone else more knowlegeable to evaluate.