For me it started right before the latest update, my battery drained somewhat faster than normal but not that much that i thought that there were would be something wrong.
The latest update is seriously draining my battery, if i am just browsing, i see a percentage go every 5 minutes.
I do not have a lot of apps, i installed LED manager because i never get the warning LES without that app. Yesterday i deleted almost all my apps, except whatsapp, the drain continues.
Could it be that i have too much video's and pictures on my phone, because the (slower) drain started when i made a 3gb video.
Hope someone can help me, my phone is one year old and without use it even drains a lot.