Manage the brightness of your screen
A brightly lit screen drains the iPhone's battery more quickly than a dim one. Open the Control Center (swipe down from the top-right on iPhones with Face ID, or up from the bottom if your iPhone has a Home button) and drag the brightness slider to the bottom to reduce the brightness.
You can also save battery life by disabling auto-brightness. In any case, the feature will automatically boost your screen's brightness when necessary, such as when you're outside in bright light.
Toggle to dark mode
The battery life of phones with an OLED display can be extended by switching to Dark Mode. Here's a list of iPhone models that have this type of display at the time of writing (available on iOS 13 and higher):
- iPhone X
- iPhone XS/XS Max
- iPhone 11 Pro/Pro Max
- iPhone 12/12 Mini/12 Pro/12 Pro Max
Set the power-saving mode to low
The feature saves a lot of battery life, but there are tradeoffs to squeeze out more battery life. In Low Power Mode, some iPhone features are disabled, including automatic downloads, iCloud backups, email fetching, and "Hey Siri".
Your phone will ask whether you want to switch to this mode when the battery level drops down to 20 or 10 percent. But you can also turn it on manually. Simply go to Settings > Battery and toggle on Low Power Mode.
Disable Push and Fetch Emails Manually
If you receive a large number of emails daily, make sure you disable push syncing, which updates your device as new messages arrive. Alternatively, you can increase the fetch interval so it only checks for new emails on a set schedule. For a drastic change, you can fetch manually all the time so your phone doesn't sync mail until you However, this can be quite inconvenient.nient. Once you are able to charge your iPhone or don't care as much about the battery, you can change the settings back.