Battery backup is not good after the CM12 update on Micromax Yureka After updating to Lollipop CM12, my Yu Yureka is not giving not even 7 hours backup in balance mode. On KitKat CM11, it was giving 1.5 days backup in balance mode.

Is there a way to increase the battery life?
If you are rooted, there are many apps and tools available to help you see which apps are killing your battery.

I have found Wakelock Detector to be very useful.