10" screen kit- battery

Hi!

I can see the 10" screen is powered by USB. I would absolutely love to find a compatible battery but I am useless at electronics. My previous projects have either been on a mobile phone or on a PC which is plugged in.

The following battery provides 5v and 2.1a (5000ma) and the screen needs a “good quality 5v 1a supply”. So… all good right?

It would be great to know, if possible, a rough estimate of how long the battery would last (if indeed it is compatible) and if anyone has done anything similar.

My last big project ran on a mobile phone, which was so easy - battery + screen + speakers all connected. So this is a step up.

Thanks.

It would be this screen by the way: