Hello. I have a Nokia Lumia 830 and a DT-601 charging plate. When i charge the phone through the USB port, the battery drains by 0,3% per hour in idle. When i charge it through the pad, battery drains by over 1% per hour. I thought there was a process that remained open after the charging, so i restarted it , but to no avail, the battery keeps draining very fast. I repeated the process several times and the result is the same, with wireless charging the battery drains much faster. Does anyone know what the problem might be?