Apple Music drains battery after cancelling subscription
My iPhone 6 battery life has dropped dramatically since I cancelled my free 3-month Apple Music subscription. Not only is the total charge lasting far less than it did in the past, but at certain times of the day the battery life will drop from 90 to 70, 50 to 1, etc. Yesterday as soon as I opened Apple Music Radio, it dropped from 50 to 1. I've taken the iPhone to the Apple Store and they've confirmed that the actual battery is fine, but they saw that there were these dramatic drops throughout the day. They reset the entire device, and I reinstalled everything and it still does it. Then I did a complete erase and reinstalled my software treating it as a new phone; same problem keeps happening. What can I do?
Thanks.