After the release of each new major version of iOS, there are users dissatisfied with the battery life, which of course is no longer as good as in the previous version. From the very beginning, you have to take into account the fact that you use the terminal more than usual and it is normal for the battery to drain faster, but of course there are some tricks that can help you improve autonomy. Considering that all smartphones have the same problem and the manufacturers are in no hurry to solve it, unfortunately you can't do anything but play with the software and functions.
Restore
I always recommend to anyone not to use backups in the case of a restore, because backups import not only important information but also problems. In the case of switching from iOS 6 to iOS 7 a backup imports into a new operating system settings from an old one and this always generates problems. In the case of autonomy, we can talk about services that work pointlessly, about who knows what bug that runs a constant service, or who knows what other problems, so performing a restore with set as new is always a good way to get rid of problems.
Disable 3G/4G/WiFi/Bluetooth/GPS
All the services listed by me above make our smartphones better, more powerful, but if you keep them active when you don't use them, you use up the energy of your terminal pointlessly. When you are connected to a WiFi network for a long period of time, it is recommended to disable 3G/4G data connections because they consume energy unnecessarily, not being used for traffic. In the same way, you can close the Bluetooth/GPS connections when you are not using these services, keeping them active having exactly the same impact as I mentioned before.
Screen brightness decrease
If you do not use the iDevice outside, then there is a small chance that you need the brightness set to the maximum and either choose to reduce it to a low value, or use the system that automatically sets the brightness. Any of these two functions will improve battery autonomy, the screen being the main energy consumer of any mobile terminal, the brightness set by users practically defining the energy consumption, because depending on it the screen draws the current it needs to function.
Reduce Motion – deactivation of parallax and the movement effect of the icons
Apple has implemented a great set of effects in iOS 7, but as great as they are, they consume so much energy and deactivating them will have a serious impact not only on the autonomy, but also on the performance of the iDevices. Navigating to Settings>General>Accessibility>Reduce Motion and by activating this option, you will eliminate the parallax effect implemented by Apple, but also the one that gives the sensation of movement for icons and their wallpapers, the option being natively activated for all users.
Avoiding dynamic wallpapers
Present in iOS 7 there are also a series of dynamic wallpapers that enhance the effects I talked about previously. Apple implemented them with the idea of giving us the best possible user experience, but unfortunately they consume resources and autonomy, and if you really need both, it would be advisable to use only static wallpapers.
Disabling Background App Refresh and Automatic Downloads
Background App Refresh and Automatic Downloads are two services that allow the background update of the information inside the applications installed in our iDevices and the automatic installation of applications if the same thing was done on a PC or another iDevice/automatic installation of updates available in App Store. Both services constantly monitor Apple's servers to know if they need to do any operation in our terminals, and this consumes a lot of energy, so it's better to avoid using them if you want improved autonomy.
Deactivating Frequent Locations and unnecessary GPS services
Frequent Locations is a service that helps US drivers to get to their destination faster, with iOS monitoring the places they've driven through, as well as traffic information, guiding them to their destination as quickly as possible. In Romania, the service only monitors the locations through which we travel, so it is not really that useful and consumes resources. Deactivating it is recommended along with deactivating information about WiFi, Traffic, Time Zone, iAds, Diagnostics and usage, possibly Popular Near Me, the only 2 really useful services being those for searching network cells and calibrating the compass.
By following these steps, you should significantly improve your battery autonomy, but only depending on the changes made.
