Android phones, apps and tablets

Started to see a significant drop in battery life after the 4.3 update. Some digging around revealed location services were going bananas which explains why it lost 50% on standby in 24 hours. Hangouts doesn't seem to be under the Google sync list in settings and I don't want to remove it just yet - it doesn't seem to be drawing enough power to account for what I've experienced so I'll let it slide. Anyone else noticed a battery hit?

Disabled Google Now?