The problem is that it keeps your device awake. This is why you see the awake time so high. In order for Google's apps (maps, +, now, hangouts) to functions as they would like, they need to have running services. Otherwise, they can still work but just not they way Google wants. This is why I don't use Google plus, now or hangouts. So in short, the wake lock tied to the app is keeping the device from sleep and waking it off often causing battery use. Since I don't use it, I'm not sure if there are settings you can use to turn it off. Can you install Greenify and hibernate it?
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