I carry this one with on the road, use it to charge my 2020 iPad Pro.

https://smile.amazon.com/gp/product/B07KMRCM6Y/ref=ppx\_yo\_dt\_b\_search\_asin\_title?ie=UTF8&psc=1

I can usually get 1 full charge for the Pro (from about 20%) and a full charge for my phone.

I've had it for about 3 years now and it still holds a good charge.