I have phone to hotspot with but it is not near as good as WiFi .( I want a power station to play with, just want help picking out right size)@Markcl using your cellphone as your iPad wifi connection may be the way. Then have sources to charge both. I have a combo battery jumper/charging backup In 2 of my vehicles. Each will charge phone about 4 times.
https://www.costco.com/type-s-8000m...tarter-with-lcd-screen.product.100813421.html.
edited for the actual product.