Bringing this thread back from the dead to report my issues:
Symptoms: the last 5 days I have noticed between 4 and 5pm (for some reason, always around the same time) that my phone is getting quite warm. Looking at battery stats shows a continually higher use by google play services. Leaving the device without intervention will lead to a massively quickly draining battery and eventual shutoff at low battery and extremely high temperature.
Screenshots:
(one thing to note in this screenshot is that if I hadn't intervened, google play services would likely be 70-80% usage by the time the phone ran out of battery and shut off.)
Does anyone have any idea what I should do about this? It's making my phone unreliable. I can't get through a whole day, and I need to. (and I used to be able to no problem.)
Whoa... That's some pretty excessive use by Google Play Services! Strange that it keeps happening at the same time of day as well.
Sounds like your having a "Sync" or "Location service issue and it's causing Play Services to constantly run, keep the phone awake and kill the battery.
Just some suggestions...
Have you tried just rebooting the device or rebooting to recovery and wiping "Dalvik cache and Cache"?
Have you tried going into "Settings/Apps/All" and scroll down to and click on Google Play Services and then clear the "Data/Cache" for it and see of that helps?
You might even want to clear the "Data/Cache" for any and all of the apps used by Google Play Services - Google Search, Google Now, Google Maps, etc)
For a temporary test... You can try going in to "Settings/Location" and turning "Location" Off.
Also select "Location Mode" and try a different location mode. If your using "High Accuracy" try switching to "Battery Saving or Device only" modes and test those out.
Also test and try turning off "Google Location Reporting" "Settings/Location select Google Location Reporting and turn it off.
Possibly even try booting into "Safe Mode" and see if that helps.
I'm pretty positive that it's related to either Location services, Google Now or with some syncing issue.
I'd try the above and/or keep poking around in these areas for the problem.
There's also an app - Disable Service, you can use the app and then go in to Google Play Services and disable everything in there that deals with location.