Today I tried to charge one battery and my controller , I did that a lot of times in the past. I am using the DJI charger. The charger charged fully the battery but the remote control does not charge, it doesn't have any lights turn on or any indications that is connected to the charger. I am using the side micro usb port. When I turn the power plug I hear a "whining " sound. I don't know why all of a sudden this happened? The controller turns on fine with remaining battery 60%. But it will not charge for some reason. Any suggestions?