iPhone 6s here, when I installed 9.3 my battery life was terrible, the worst it's ever been. After installing 9.3.1 my battery life has gotten better, but still not as good as 9.2.1
With 9.2.1 I could go a day and a half between charges, with 9.3.1 I have to charge every night, 9.3 I had to charge mid day.
I always update through iTunes, never had any battery issues before, using a TSMC chip if that matters.
With 9.2.1 I could go a day and a half between charges, with 9.3.1 I have to charge every night, 9.3 I had to charge mid day.
I always update through iTunes, never had any battery issues before, using a TSMC chip if that matters.