Good battery life!
I have the xt925 no maxx and the first day I was scared about how fast the juice was going! but I did some things and now Im pretty happy with it!
First I turned off the 4G, I use movil data just to text with two programs so I almost dont need 4G speed
brightness set to auto
freeze or delete bloatware, here in Mexico Telcel adds a lot of **** to the phones!
I use trebuchet launcher so no circle widget, no widgets in fact, fc with every widget but u can use holo launcher hd it work well and can use widgets (no circle widget)
Wi fi on, now there are wifi almost everywere so I let it on (use any program to predict default passwords)
And believe me! the batt last enought!! I use the screen indoors mainly but alot of messaging and web browsing, some gamming and trying apps and Im in second day (suspended 6 hrs when I slept) and there are a lot of juice, meaby I finish the second day lets see.
Hope it helps you guys.