Hi everyone, I searched everywhere about this but without success. I have a Samsung S6 Edge plus phone and I installed the Android 6.0.1 (Marshmallow) stock firmware. It is great except the battery drain on the OS. Here are two pictures from the Smart Manager and the DU Battery Saver app. I can't even last a whole day when I could sometimes last 2 days with Lollipop. It's usually between 20% and 30%. I reinstalled the stock firmware, deleted the cache partition and made a full phone recovery. Nothing worked. Is there anything more I can do? btw: I have the Galaxy Tab S2 and the Android OS only takes 1% of the battery in Lolipop. Thank you!