I like many others have terrible battery performance with my Note 3 N9005. Mine began 2 months after purchase, no root etc. Tried everything and sometimes it would be fine, other times drain like hell. Now I am rooted using chainfire, I run clockwork mod, use nova launcher etc. My wifi never sleeps, so I have to turn it off manually and for the most part since rooting last month, installing greenify etc, I can get nearly 3 days sometimes out of a battery, which includes streaming spotify, browsing etc (I don't play games on my phone). Still my wifi never sleeps. But every so often lately the major battery drain has begun again. Last night I went to sleep on about half and woke up nearly dead. I am attaching a copy of Better Battery stats in the hope someone can explain what the cause is. I also noticed the cpu running at 300hz for most of the time.