I just read the snapdragon battery guru information and it seems to be a very good app for those who don't wish to "get into" how to make their phone work.
For extending battery life, I have taken a different approach that meets my needs extremely well.
I use MacroDroid to turn off the WiFi and Data (the internet) when my phone's screen is locked.
When I unlock the phone, MacroDroid automatically senses that and turns both WiFi and Data back on.
MacroDroid is extremely versatile and just might be something to help you out.
* MacroDroid - Device Automation - Android Apps on Google Play
* MacroDroid, setting it up
Using my approach can result in less than 10% battery loss per 24 hr day IF the phone is not used during that time.
If the phone is idle, I personally have no use for the internet. Everything will sync up with 2 to 4 seconds after the screen is unlocked and I find no detriment to my method.
However, if you are a socially integrated person and need to be notified that the neighbor's cat got out of the house, this will not work for you.... Me? I have no use at all for chat mode, social networks, etc...
YMMV