It is not a battery issue, its phantom drainage, so you will have to restore your phone as a new device and tweak some settings around. Also fully discharge the phone numerous times to see it the phantom drainage stops. Doing one or more of the things I mentioned may stop this phantom drainage.
RE:
I have found a solution that worked for me, after numerous tries following other solutions that only sloved my problem partially.
Step one: Reset all settings, when prompted after the reboot, choose set up as new iPhone
Step two (old news): Follow what most people have said, turn off diagnotic reports/ all system services except "cell network search" On the same screen, make sure status bar icon is on so you can see if location services are being used. Turn off location services for things you don't need, the same for notifications. If you can avoid turning on notifications that show up on the lock screen for things that are unimportant. Also enable restrictions and turn off "ping", blue-tooth and for siri, turn off raise to speak, "that way the phone doesnt have to worry about sensing your phone when you put it against your ear. (INSTEAD, just hold the home button and when siri is on, then put it next to your ear to switch to headset mode. )
For email turn push off. When push is off, any email that has the fetch option on will only check for emails lets say every hour when you set fetch to 1 hr. Emails accounts that are unimportant set to mannual, that way it will only check when you use the mail app. Try to avoid having push set on.
Step three: Recalibrate your battery, drain it completely and let it charge fully to 100% overnight. Let it still charge for hours once it is at 100%.
Step four: restore your phone, and DO NOT restore from backup. You have to somewhat start over again. Make sure you have atleast your apps and music/videos/podcasts etc in your iTunes library.
step five: turn off automatic downloads for itunes, app store and iBooks when purchased on other devices. Somehow, after doing this my phantom drain stopped. Then when I checked these options the next day, they went back to on by "itself"
This solution doesnt work 100% the first time. I believe there is a bug in the settings that causes the phone to have some sort of phantom drainage. You just have to tweak your settings around. This is why for some people their battery problems were solved and for others, were not. It could be possible they thought doing the original solution guides people have set up indeed fixed your battery issues, when they could had actually fixed it themselves by playing around with the settings.
I tried for almost a couple of weeks doing the above steps, but last night i did step five and the phantom drainage stopped. I now have 1 day 12 hrs stand by and 8 hours of usage ( light web browsing, application downloads, some text, couple of calls, 2-3 hrs of music .)
And I also noticed that my usage is accurate now. Before my fix, i noticed the usage time went up to a number of hours I dont recall using. That was probably the phantom drain. I also noticed before that when i lightly used my phone(listening to music drained 2-3 per hour), it seemed to drain at the same rate as if it were on standby. (losing 2-3% an hour as well)
Tips:
Keep checking if your usage time is accurate, if its not, you still got a drainage problem. Also Standby time includes usage hours altogether. If you dont get a plug icon when your phone is fully charged and get a bolt icon instead, that is another bug. Restarting your phone and plugging it back in again may fix that. Or restorting your phone.
Avoid apps that have lots of ads, it may cause drainage issues, or make sure you dont use too much storage.
Scarface.
Level 1
(86 points)
Jason L
Community Specialists
