Charged to 100% yesterday and unplugged it around 2pm. Used it a bit and then had my white-noise (tmsoft) running all night. I have been playing music on it most of the day and had gps going for about a half hour. As of 9:52pm, I am at 18%. (wifi, mobile-data, and gps on the entire time.)
Yes, I put it in my phone when I got it and charged it for several hours (probably more than it needed) with the phone off and then booted straight into recovery to reset battery stats.
I suggest letting it drain completely until it powers off, charging it to full while off, and then resetting stats.
Phone: ED03 stock (tw launcher as well), rooted and marginally debloated... Still odexed and everything.