Turn off bluetooth
Much like leaving your wi-fi on, keeping Bluetooth on when you’re not using it will deplete your battery faster than normal. You can also switch Bluetooth off in the command center by tapping the button with the Bluetooth symbol. Even if you have a Bluetooth device connected to your iPhone, it’s a good idea to disconnect and power off your Bluetooth device if you need to stretch your battery life until the next recharge.
Turn off cellular data
Another simple way to extend your iPhone battery life is to turn off cellular data. This won’t interrupt your ability to text or call your contacts, but it will prevent you from browsing the web, using data, or sending and receiving picture text messages. However, if you need your battery life more than you need to text multimedia or use the Internet, this is an effective option to extend your battery life. To turn off cellular data, navigate to Settings>Cellular and hit the button that says “Cellular Data”.
Additionally, an easy way to extend your iPhone battery life without interrupting your communications is to “kill” your apps. Whenever you open an app, your iPhone leaves it running in the background so the app starts faster should you want to switch back to it. While convenient, this feature is misunderstood by many iPhone users, so they don’t know they need to properly exit apps when they’re finished using them. To see all the apps currently open on your phone, hit the menu button twice in a row. You can scroll through the open apps by swiping left and right, then exit an app by putting your finger on the window you want to close and swiping up.
Turn on airplane mode
Similarly, turning airplane mode on will drastically extend your battery life. Unfortunately, this will interrupt your ability to communicate with your contacts. With airplane mode on, your phone will not transmit any signals, which means you won’t be able to make or accept incoming calls, send or receive texts, or use the Internet. For this reason, turning on airplane mode to extend your battery life is best used only in emergencies.
Stop fetching data
Finally, another easy way to extend your iPhone battery life is to stop your phone from fetching data. This happens on apps that automatically download new information. Fetching data is most common on email, but can also be turned on for other services, like Calendar and iCloud. Instead of letting your phone constantly update your messages, photos, dates and reminders, just check your apps manually for new messages or content. Navigate to Settings>Mail, Contacts, Calendars>Fetch New Data and switch off data fetching and push data to extend your battery life.