Hi, I'm one of the users who has been suffering horrendous battery life since moving to iOS8. I've tried everything that has been mentioned but as yet, not fix. I have found an odd issue though that might be related. If I for force quit all apps and then hard reboot phone, the apps that I previously force quit are all still there in the multitasking menu. I tried the same steps on an old iPhone 4S on iOS7 and upon rebooting the phone, the multitasking menu is empty of apps. I'm wondering if iOS8 is not pausing/killing apps correctly and thus, destroying my battery life. Can anyone else confirm this behaviour who is having battery issues? ---------- To confirm, iPhone 5S updated to 8.0.2 and the problem persists.