Zendure has put its latest product, the MIX GO, up for crowdfunding on Indiegogo. It is a 5000mAh power bank that can also plug into the wall to power devices compatible with 45 watt (W) charging. Not a brand new concept, admittedly, but this version is also equipped with state-of-the-art gallium nitride (GaN) technology.
https://www.notebookcheck.net/Zendure-launches-the-MIX-GO-a-hybrid-45W-wall-charger-power-bank-on-Indiegogo.449456.0.html