Help Note 5 battery drain?

[Marley245]

I got a new note 5 the other day and noticed a huge battery drain. Exanged it for a new one yesterday and still notice a big drain. Ive done all the tips ive found online and still nothing. Any help?

 

[AZgl1500]

it is going to take a couple of days for things to settle down, don't get too cranked up over this just yet.

I noticed when Lollipop and Marshmallow installed, that battery life was shorter on the 1st day especially.
there is a lot of work going on in the background, and that is going to show up in the System OS

Power the phone off/on a couple of times each day for a couple of days.
Also, clear the cache partition at least once.