In my galaxy s7 edge after nougat update it's battery life become very poor....before nougat update I have got 6 hours of screen on time but after nougat update I am getting 4 hours of screen on time....I think Samsung should take necessary steps to solve this problem.
Do a data backup then factory reset, which you should do after every major update. System needs reset to stop apps from running in back ground and affecting battery performance.
