Excessive System Battery Drain?

[PretoEvo]

I purchased my S7 last week based in part on the reviews about strong battery life. So I have been surprised, a week later, to see 8% battery drain in just over 2 hours with almost no use. See screenshot attached.

Is this normal? Is there something I can do to reduce the drain? Active screen is already off.

 

[Sim Sim Salabim]

I would not call that excessive, not even close.
But you could try turning off BT, and turning on power saving mode.

 

[Sim Sim Salabim]

Also, the S7E is the one with the amazing battery life. The S7 is pretty good but not nearly as good.