Ahh I went though this like 2-3 months ago.. Its really depends on you what kind of gadgets you want to charge..

For example I had a good one which can charge my phone almost 2 times

Working with the blockstream Jade

But the coldcard MK consumes too little power and after 20 second the power bank automatically turn off..

After that I tried an other one

Same story with my phone

Coldcard Mk fine

Then somehow my Jade is bot charging with that.. so it’s a bloody hell topic..

for my experience only can give you these information also looking forward for some good one 😅😅

This UPS picks up the load for my wifi, modem, router, PC, Start9 server/BTC node, game console, monitors and device chargers in less than a cycle in the event of a power outage and lets me prioritize what to leave on, continue charging, or shut down over the course of an hour. It’ll run my wifi, node and satellite internet alone for hours. It gives me lots of time to switch to a fully charged laptop for basic online operations.

Check this out on @Newegg:CyberPower CP1500PFCLCD PFC Sinewave UPS Systems - 1500VA/1000W, 120 VAC, NEMA 5-15P, Mini-Tower, Sine Wave, 12 Outlets, LCD, PowerPanel https://www.newegg.ca/cyberpower-cp1500pfclcd-nema-5-15r/p/N82E16842102134?

If it's for air travel keep in mind FAA regulations on battery sizes. 🤙