So yesterday I spent a couple hours taking some photographs and came home to do some design work and I left the 1020 charged in. Yet as the day went on, the phone never charged, it continued to go down, even plugged in. I tried plugging in the camera extension but even with that it eventually discharged to 4% then stuck there, plugged in. When I'd unplug, I would get the critical battery warning. I tried rebooting twice, and finally on the 2nd reboot, the battery level went to 100%. Anyone else notice behaviour like this?