A:AnswerI've been using a Samsung Qi charger for a couple of years now - first with my Galaxy S7 Edge and now with my new Note 8. I've had Mophie's on both phones and use the Qi charger all the time. No issues at all. The charger will juice up the phone and the Mophie at the same time. It's an amazing combo and it's the reason I stuck with Samsung actually.
A:AnswerYes with it on, can charge qi wireless pad. And yes it can charge thru usb c thru same phone connector of note8 then thru the mophie connector at the same time.