Hello,
To correctly identify the problem I recommend you to use “GSam Battery Monitor”.
Then under “App Usage” you can directly access the Android App Info settings and kill (“force stop” and “turn off”) the apps/services that are over using your battery.
In my case was “Google+” and “Samsung Link” (I never used any of those and were safe to disable).
Links:
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm&hl=es
Regards,
AC.