Ok so my phone would die after around 5-6 hours of doing nothing, I found by going to device administrators and disabling "android device manager" and then going to settings > apps > all > Google play services. You are now able to force stop the app. After doing this I have now have no battery drain and this don't seem to cause any other issues
Sent from my C6603 using Tapatalk
Sent from my C6603 using Tapatalk