My battery is dying extremely quick

[AC Question]

I just got my Samsung Galaxy s6 a week ago and it's absolutely beautiful! I used to have an iPhone 4 an I wanted to die and my new phone is extremely fast. There is only one problem the battery life dies like crazy! It only lasts 3 hours and if I'm using apps only 2 hours and I keep my phone on power saving! I looked at the battery on settings and it says a crazy amount like 10 hours! I looked at tips and they don't help either like turning off Bluetooth mobile data and GPS but nothing works. Also I got my phone on ebay but it stated it was braND new in the box and it was and I found no other problems then this so I don't think they sold it for this reason. Any ideas would help thanks!

 

[Golfdriver97]

These are 2 of the 3 screenshots the others are talking about. It helps as they show the drain and what might be causing it, like wake locks, and cell quality.