Google Services battery drain on Galaxy devices
For the drain caused by google play services, install the Xposed framework and the module Wakelock Terminator. The free version lets you block 1 app, and that's all you need. Open up Wakelock Terminator, choose to block Google Play services, and filter it with the following: NlpCollectorWakeLock NlpWakeLock CheckinService NetworkLocationLocator. Of course, your device must be rooted. If it isnt, try disabling location access when you're not using it