fast charge your anker powercore essential 20000

Hi, I’ve a anker powercore essential 20000 and I’ve got a fast charge plug from another device, will my anker powercore essential 20000 itself take a fast charge or not? Not talking about phone or other device charging only the anker powercore essential 20000.
If so what is the max V or max W it can take safely?

Thanks

Three links below. How to use the community, then example of using it, then a probable answer found.

http://community.anker.com/search?context=topic&context_id=89881&q=Essential%2020000%20order%3Alatest&skip_context=true

What’s the output of the other charger?