Originally Posted by adb7
I'm still running JB MK2, BTU region firmware with root and the battery life is horrible, worse than MJ7.
That's why I stayed with MJ7. That being said I also had to add some stuff into Wakelock Terminator for Google Play Services - at some point during this year that one become a large battery drain (if you have any network connection open).
N9005 Universal Root De La Vega / Mobile Odin Pro, Knox 0x0, MJ7