Same with mine. My 12PM hit 86% on June 17. It's June 27...and it's STILL showing 86%
I was losing 1-2% in 6-7 days..now it almost seemed like it slowed down. Actually with this unacceptable 86% health, I WANT it to drop fast, getting to that 80% number asap. (Only way Apple can replace this free)
More aggravating is daily battery life has noticeably been affected. I wasnt out too long yesterday...very limited use of the phone in 70-90min. Came home with the phone batt. life down from 100% to 82% - Again, seeing nothing in the background/apps draining this more.