Q: iPhone 6 battery suddenly draining fast

Have you tried to reboot the phone? Hold both the sleep/wake and home buttons until the phone turns off ignoring the slide to power off message. Then turn it back on.

Hi Dylan,

It would seem that the battery on your phone is draining way faster that it was. I would suggest that you might as well check the activities you have on the phone because there may be a lot of things that causes the battery to drain faster. You can check the usage on your battery on this article : About the battery usage on your iPhone, iPad, and iPod touch - Apple Support

If you checked and it seems that there are apps that gives you quite a problem then kindly reduce the usage and that will help the battery to last more longer.

Also you might as well check some settings that can drain the battery faster e.g. Background refresh app, Auto-rotate, Brightness etc.

It would seem that there is a problem on the software itself that needs to be reset.

A back up and restore can help you if there really is a problem on the software. If the the battery still drains faster then it is recommended that you go to the store and let them diagnose the phone itself.

Ok go to settings and battery and see what apps are using the most battery percentage. You may have to delete the app and reinstall them to fix the problem.

I'm sorry I don't have a solution to this, but I am having the same problem. Starting yesterday evening, my battery has been draining 1% every couple of minutes. I have rebooted several times and gone through location services and background apps to turn off everything but the most essential. There are no obvious culprits in the battery usage. It seems like there must be some rogue process that is sucking up battery, but I would think it should have been stopped when I rebooted.

This may help - essentially you sign out, reboot, and sign back in on all your accounts.

http://forums.macrumors.com/threads/ios-9-3-2-battery-vs-9-3-1-battery.1966379/p age-5#post-22806658

My fix was to log out of iCloud and log in with a newly created apple id.... Battery problem solved on my phone and my wife phone who were sharing same iCloud id