Several leaks have painted the OnePlus 8T as a flat-screen refresh of the existing 8 flagship series. Now, it has released a new preview post to its community website revealing that it will get the next generation of this OEM's in-house Warp Charge USB type C charging standard. This system will use dual cells to allow the battery in question to attain full capacity in an estimated 39 minutes.
https://www.notebookcheck.net/OnePlus-confirms-an-upgrade-to-65W-Warp-Charging-in-the-upcoming-8T.495323.0.html