Thank you for sharing your experience. I'm waiting on the RAVPower 30W PD (the smaller version of your 60W), so I'll be able to report on that in a couple weeks.

As for wall power, I'm using their micro 20 watt, and it's working great for me: https://www.amazon.com/dp/B073XGDZ4S/

Note that I'm not recording, just using the hdmi out in 4k60p.