I am experiencing the same problem with battery drain right after installing the 152 update. The battery drain was not present in the previous updates after wiping dalvik. Were you able to find a solution to it?

I did that a couple of times but still the same.

I uninstalled facebook, messenger and youtube and installed previous versions of them. The battery drain slowed down. Give it a try.

Guys, I uninstalled and then reinstalled previous version, not uninstalling for good.

Just wanna update.

After updating to version 152, my phone battery drained very fast and scrolling was weird. I tried many things including clear dalvik cache and recalibrate the battery but no luck. Problem still persisted. Then I backed up and factory reset. Now the phone's battery drain is same or better than before update and scrolling is very smooth.