Sent from my C6903 using xda premium
I have been using Qualcomm Snapdragon BatteryGuru since I last flashed 290. It's a bit vague about what it does (other than give you charge reminders and control some background data for some apps), but I can easily stretch a charge into 2d if I want to. Obviously, heavy use still tops out around 18h, but it does seem to make some improvements. Wish I knew more about what it was doing, though.