I had been having some difficulty charging with a wireless receiver that I have that has 3 coils and stands at about a 40 degree angle. It appears that the wireless charger center in the Droid Turbo 2 is slightly lower than many other phones. I simply added a small buildup to the bottom of the charger ( actually a small round tube from a large pen, held on with velcro) and now when I sit the phone on the charger, the internal recepter is higher and it charges properly.