LOL @ this chart and your S6
Comparing percentage of charge would be valid if each phone had the same size battery.
My Droid Turbo has a ridiculous 3900mAh battery which is
50% bigger than the S6.
I forgot to charge my phone last night. Still had over 50% when I got up.
Well smarty pants, I close all my apps every day and can do the same thing. So...