Looking for some help. Just got my Mavic 2 Pro with Smart controller in the mail, Smart Controller has been charging with charging cable and wall box that came with it since around 3pm, and is only at 12%. When I realized it was taking an exceptionally long time to charge, I switched out the cable and box to one I know works well with other devices, and it is still at 12%. The controller charge lights has one light blinking, and the controller keeps making a chime noise. Any suggestions.