1 Disable Automatic Fetching of New Data
If you’ve added your email accounts to the Mail app, then chances are that you’ve set it to fetch new emails automatically. While this is useful, it increases the battery consumption of your iPhone as it has to constantly check for new emails.
To reduce the battery consumption, you should disable this feature or change the settings such that new data are fetched less frequently (e.g every half an hour).
- Go to Settings.
- Tap Accounts & Passwords.
- Tap Fetch New Data.
- Here you can lengthen the fetch frequency, or disable it completely by turning off the toggle next to Push.
These are some of the ways to improve the battery performance of your iPhone and iPad on iOS 11. Since iOS 11 is currently in beta at the time of writing, some of these tips could change by the time the final version is released.