The Xperia 5 II has stopped by the FCC, confirming that it will come bundled with an 18 W fast charger. The September 17-bound flagship will also have a 4,000 mAh battery, a 120 Hz display and Qualcomm's Snapdragon 865 SoC.
https://www.notebookcheck.net/Sony-Xperia-5-II-hits-the-FCC-with-an-18-W-fast-charger-for-its-4-000-mAh-battery.492521.0.html