I believe Its something on googles end, because its all across the internet (and different parts of these forums).
My nexus 5 hasn't been affected, but my nexus 7s battery was decimated by it. I actually have some really interesting screenshots I can post tonight.
For over 24 hours my tablet slept and only lost 1-2%. Then the Google services bug hit and it took over 70% of my battery in the next 24-36 hours.