I'd accidentally left my MAXX in my van for about 10 hours, on the car dock. I went out to my van at 2 AM, to get my phone and it had virtually no power. The temperature was about in the mid 40s (F) and my phone was very cold. After leaving it plugged into the wall charger while I slept, it worked fine. What has caused the loss of battery power? Was it because it was docked but not getting any power or does it have anything to do with the temperature?