My battery observation is that the bottom 50% of this phone lasts as long (if not longer) than the top 50%. That has not been my experience with my Gnex and Dinc. Both of them would burn 10-15% quickly, the next 40% is where I would get the most use and longevity out of. Once it hit 35% it drained VERY quickly.
I"m not sure if it's battery stretch or what, but it does very well throughout the charge.