Second, it seems as though the battery in my phone is acting up, just like my Droid 4 did. I'll charge it fully, the battery will drain over the course of the day, and then it will continue to live on critical (!) battery life for the next 5 hours until I go to bed and plug it in.
Why does it do this? Why does my phone apparently not understand the battery capacity? If my phone is getting down to the point where it says critical, with the red exclamation point in the battery icon, why does it continue to operate for 5 hours? How do I fix this?