https://www.androidcentral.com/phone...d-battery-life
"Battery life is good but
some bugs caused it to be artificially worse for us."
"During the review period, I ran into
a few strange bugs with the front-facing camera that caused a lot of power drain. I've reported the bug to Google but, until then, using Face Unlock or Face Detect for Auto-Rotate features causes an inordinate power drain.
Based on our lab tests and experience after disabling these features, though, the battery should be enough to get most people through more than a full day."