Re: Meanwhile what's happening with the UK's ban ?
Hmm,, that was effective wasn't it... We were flying back from Dalaman (Turkey) just after the ban of electronics thicker than 15mm was introduced. I didn't fancy putting my powerbank into the bin - so put it into the pocket of a jacket, folded the jacket over and put it in my cabin bag. Of course, they didn't find a deliberately hidden item at the second security check at the gate.
I was far more concerned about battery / battery packs placed in checked baggage which may malfunction during the flight - unseen, wrapped in flammable clothes, subject to abnormal temperatures and shock.... Lithium batteries, other than those in the Samsung Galaxy S7, fail in flight. Iirc a Bluetooth headset and laptop battery have failed in flight this year - only detected because they were being worn / in a cabin bag.