Lollipop is supposed to come with options to adjust battery use that are accessed through Settings>Battery.
Please see: How to set up battery saver mode on Android 5.0 Lollipop | Greenbot
This functionality is missing in the latest S5 Lollipop update. It is possible to go to Settings>Battery, but the menu to adjust battery use on that screen is missing.
I was previously using the Qualcomm Batteryguru app, which worked great in the prior version, but is not designed for this version.
Is this a bug that will be fixed?