If I offer advice, it'll be met with the same response erasat gets: "But I shouldn't have to tweak anything" and more nonsense like that. Here's a spoiler alert, though; none of us can fix this right now. We've identified what it is, what it's doing, and how it's affecting other devices that run Lollipop. Google needs to address it. Simple as that.
Yet those that are aware of this, that have battery drain issues, still come here to whine and cry as if something is going to change. You just bought the phone. You know others are not having the same issue and their battery life is a lot better. You know the issue is software related. You know certain workarounds because erasat has been nice enough to share them over and over again. All that considered, you still come here and cry over this and argue with people who don't have the same problem.
If you can't be patient with it or don't want to exchange it, return it. This isn't complicated. Every time you say the battery life on the S6 sucks, someone is going to correct you, because in reality, it doesn't.
Posted via Galaxy S6 edge