Mophie has launched new Powerstation PD and Powerstation PD XL battery packs that will fast charge both supported iPhone and Android smartphones. Compared with the standard 5W charger that Apple ships with its iPhones, the Mophie Powerstation battery packs will charge an iPhone 2.5 times faster.
https://www.notebookcheck.net/Mophie-launches-new-18W-Powerstation-PD-series-for-iPhone-and-Android.391576.0.html