“Like a lot of people, my iPhone 6 was fine until Dec 2016 when I updated my iOS. I began getting the 30% battery shut down. Then in Jan 2017 after updating my iOS again, it began draining fast. Whereas I normally would have about 85% after getting home from work, now I'm below 50% by lunchtime. How can I fix iPhone 6 battery drops quickly after update?”
- Apple Community
Since iPhone was released, the battery life has always been a popular issue. Since Apple continuously published iOS 10, iOS 10.1, iOS 10.2 and iOS 10.3, many iPhone users have already updated their device to the latest version. However, some people have complained that iPhone 6 battery drain fast after iOS 10.1/10.2/10.3/11 update. The reason for this issue can be hidden location services, external environment and system issues. This article will show you the most effective ways to fix battery draining problems on iPhone 6 quickly.
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Go to Settings->Battery to check if there are too many apps working at the same time, end some of the applications to stop iPhone 6 battery drain and hot issue.
Go to Settings > Battery > Turn on Low Power Mode
If you don't want app refresh automatically, you can turn off this feature by navigating to Settings > General > Background App Refresh, tap on the icon to turn it off.
When your mail is set to push, it will constantly send you notices and will make iPhone battery drain fast. When iPhone 6 battery percentage drops suddenly, you can go to Settings > Mail > Accounts > Fetch New Data and turn it off for your accounts.
Enable Airplane Mode will be a good way to save battery usage when you're not using it.
This will be the last option to fix bad battery life on iPhone 6. Remember to back up your device before restoring as it will erase all the data.
How to fix battery drain on iPhone 6 in iOS 10/11 no longer be a problem for you after going through the easy methods above, if you have the same questions on iPhone X/8（Plus）/7/6/6s/5, iPad or iPod, the fixes are similar.