For information, I bought the Anker Nano Power Bank 5 000 (22.5W, Built-In USB-C Connector). Not 30 W or slim as I was aiming for, but with this one I don’t need to think about a cable. Only weights 100 g, half of the weight of my slim 30w 10k power bank.
Quickest 5k Ive personally seen is the Anker Hybrid at 20W
For information, I bought the Anker Nano Power Bank 5 000 (22.5W, Built-In USB-C Connector). Not 30 W or slim as I was aiming for, but with this one I don’t need to think about a cable. Only weights 100 g, half of the weight of my slim 30w 10k power bank.