iPad making charging noise when not plugged in
For the past couple weeks, my iPad Air 2 has been continuously making the charging beep noise every once in a while, except it does it when it isn't plugged in. It can be fully charged and it'll do it.
I just updated to the latest firmware hoping that'd solve it, but it hasn't, nor has restarting the device.
iPad Air 2 Wi-Fi, iOS 9.2