I’ve been requested a few times to try my OTG 4 x USB 2.0 charging hub on my Teclast X80h, I can report that it works just fine as per the below video. The best way to make sure it charges correctly is to connect it up before powering on the system in the switch position #2 This position allows for both USB hub functions and charging at the same time. Position number 1 on the switch is just USB and allows you to use a keyboard and mouse for say, entering the bios.
If your interested in this hub, you can get one here.
