Described as "the ultimate travel and work companion" and less than 500 grams (1.06 pounds) in weight, the EXCITRUS PD100W power bank has a 20,800 mAh Li-ion battery inside and the ability to charge up to four devices simultaneously (via wireless charging, two USB-C ports, and one USB-A). The price tag reads just US$99.
https://www.notebookcheck.net/EXCITRUS-launches-the-MagSafe-compatible-PD100W-power-bank.598440.0.html