iMore

Since updating to iOS 9.2, my battery has been all over the place. It dies at 4%, & when I plug it in to come back on its at 10%. Just now I unplugged it, it was at 19% then dropped to 14% in matter of secs. I tried the whole calibration thing, but I can't get it to 1%. Any other suggestions on what else I should do ? It also gets really hot at times.