Dear Faiphone team, I would be interested in a new cover that includes two things, a QI loading receiver and a additional battery. It should be possible to integrate that in a new cover. Of course this would be a little thicker but I am sure that I am not the only one who would like to have longer runtime and wireless charging.
Some Fairphoners reported decreased battery time with Android 6.0.1 Marshmallow. I am sure Fairphone are working on this issue already. Probably one of the next updates will sort it out…
Requests to the Fairphone Team have to be directed to them via one of the official channels (for example https://fairphone.com/asksupport ).
As to QI wireless charging: Here are some more topics about this.