First of all, how long have you been using Android 4.4? This version has huge battery improvements over any previous version. It's possible that no tweaking is necessary. Secondly, do you regularly disable gps and disable/enable Wi-Fi? The rule is that Wi-Fi saves battery during non-trivial data transfers (because 3g/4g hog power), but will cost battery if you leave it on all the time (because Location Services will likely be polling b frequently). How about turning Bluetooth on only when needed?
Lastly, have you determined which apps are battery hogs and uninstalled or greenified them?
How about putting screen brightness just a little bit lower than you might like? And closing background apps if you aren't gonna use them soon? (By sweeping them out of the multitasking screen.)
These tweaks will yield much more battery improvements than scheduler changes.
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