How to save your iPhone's battery under iOS 7

Some iOS 7 features - e.g. automatic app updates - turn out to be power guzzlers. Read tips on how to conserve the iPhone battery here.

Data transfer, WiFi, hotspot and Bluetooth: Deactivate battery eaters

First start the "Settings" app. Then go through the instructions below step by step. Which function you switch on or off is up to you.

WLAN: On the way it is recommended to switch off the WLAN. This saves electricity and also protects your privacy.
Bluetooth: Turn off Bluetooth on the go if you only need it for your speakers at home, for example.
Mobile network: Probably one of the biggest power guzzlers: mobile data. You can deactivate this under the menu item "Mobile network" - either generally or individually for each app.
Personal HotSpot: If you don't have to provide an internet connection to your neighbor or laptop, you can always leave this function deactivated.

First go to the "General" submenu. Under "Background update" you can deactivate all apps that do not have to stay current in the background. Also worth considering: the "Automatic lock" function. If you often leave your iPhone unattended, this option is not only recommended to save electricity. This also increases security if you have set a PIN.
Back on the start page of the settings you will find the item "Backgrounds & Brightness" below. Activate the "Auto brightness" function there. Thanks to the front camera, the iPhone automatically recognizes how bright it is in a room. This option reduces the brightness in dark rooms, for example. As a result, the display does not always run at peak performance - this also protects the battery.
In the "Privacy" submenu of the settings, you should switch off all location services that are not required. This not only saves electricity, but also avoids the mostly unnecessary data collection.
Finally, you should definitely have a look at "iTunes & App Store". Here you should leave the "Use mobile data" function switched off. Otherwise, app updates are downloaded via the mobile network, among other things.
You can also find additional energy-saving tips for iOS 7 in this tip.

A little tip on the side: If you want to charge your iPhone as quickly as possible, it is advisable to do this in flight mode.