My Buds+ won't charge wirelessly. The indicator lights up on the charger and Buds+, but the battery percentage doesn't go up or drops even. I tried charging the Buds+ with Powershare and charging my phone on the wireless pad and they both work fine. I talked to support and they told me to try another outlet and it started charging, but the battery percentage would stay the same after a while. What could be the problem?