> of course the overhead bin restriction would have been difficult to police and enforce.

In China (Mainland of course), they will toss your powerbank at security if it isn't approved, and the approval they are using is rather recent and Chinese specific, thankfully most recent powerbanks made in China have the approval. They are very efficient in snuffing out powerbanks also, their thoroughness would definitely make our TSA blush.

> But the onboard outlets were good enough for anything I needed to do during the 15+ hour flight.

Only if those plugs are actually working....sigh.