My 1st flight in forever

[sinkingfeeling]

3. I can find no restriction if on domestic flightif in carry-on.

Power banks are not allowed in checked luggage / cargo luggage. You can bring power banks up to 27,000 mAh on most passenger aircraft. Larger power banks may be allowed on some airlines in some parts of the world.Aug 23, 2023

https://www.ixigo.com/is-it-allowed-to-carry-power-banks-in-flights-story-1180225#:~:text=Power%20banks%20with%20a%20capacity%20of%20more%20than%20160Wh,prohibited%20by%20various%20airlines%20internationally.&text=For%20example%2C%20flyers%20often%20wonder,be%20carried%20in%20cabin%20luggage.

The problems arise on international flights.