mobile

I have switched my m8 from sense to GPE 5.0.1 and am loving it so far.
But I have one gripe: battery. Battery life has been absolutely terrible compared to sense. I also miss the "power saver" and "extreme power saver" modes. Is there anything I can do (kernels? apps? xposed mods, what are you using?)

- There is a "battery saver" mode in lollipop, but there seems to be no way to integrate it into the quick toggles as I have been used to doing for years (coming from samsung s2 -> s3 -> htc sense m8).
- Battery saver is very limited in customization: What if I want power saver but don't want to disable background data?
- Also, the "disable battery saver when plugged in" is bull****. It takes five actions to turn it on again each time I plug in the phone
- Is there any equivalent to the "Extreeme power saver" mode? It used to drain my battery next to 0% at night.
- I am using amplify to find and kill wakelocks and greenify.

Also, any alternatives to the battery stats monitor in lollipop? I'm starting to miss sense just for the reasons above.. otherwise GravityBox does everything I need :)