Yesterday I have to went out for a function and the phone was having a charge of about 70%.
Used it for clicking some pics and other stuff after which battery level slides to 46% which is obvious .
Applied maximum power saving mode in a wake to save battery for maximum time . Since I was in party I have to disable and enable to many times and everytime the phone heats up and it took around 3 minutes for enabling and disabling but for my surprise battery was draining at much faster rate than it does in normal mode .
Last tym I send samsung update with the logs and every detail withing 15 minutes of problem but the guys didn't found anything in logs .