Here are screenshots from my three Samsung Galaxy devices:
Samsung Galaxy S3 (left) and Samsung Galaxy S4 (right; click images for larger variants)
Samsung Galaxy Note 10.1 2014 (click image to enlarge)
It seems, that in each case Google Play Services ("Usługi Google") are mostly responsible for fast battery drain. 2014 lasts only a day now (compared to 3+ days of previous version of 10.1). S4 lasts less than 24 hours, S3 toughly reaches 24 hours.
What is the cause of so fast battery drain?