It has happened on my phone before (don't know what caused it) but it eventually fixed itself. Let me see if others can chime in on this and maybe give more insight.It just started today.
Have you tried restarting the device or clearing cache for Play services?
Sent from my Nexus 5 using AC Forums mobile app
Mine the same since kitkat update, gone from battery lasting two days, to three charges a day. Mine is a Sony xperia. I found on another forum to uninstall updates on google play. This worked, battery usage went back to normal, but then as i used various apps they wouldnt work properly.