While i am seeing youtube video my phone was unexpected shutdown and again restarts until the samsung logo appears...and that process was continues until battery was drained. And i went samsung service center that guy told to me mother board was fail...
I am normal user i can get battery from morning 7:00 am ( i will charge upto 85% only) to evening 6:30 pm with 40 or 30% remaining. I feel good about my battery