Battery and power management
Your device has an embedded battery. You can keep track of your battery consumption and see which applications are using the most power. You can remove or restrict apps and activate a number of power saving modes to get more out of your battery. You can also view an estimate of how much battery time is left and adjust your battery settings to improve performance and make your battery last longer.
To manage your battery consumption
-
From your Home screen, tap
.
- Find and tap Settings > Power management > App power consumption. An overview appears showing applications that have high data traffic rates or that you have not used for a long time.
- Review the information, then act as required, for example, to uninstall an application or restrict its usage.
To view which applications use the most battery power
-
From your Home screen, tap .
- Find and tap Settings > Power management > Battery usage.
To view the estimated battery time
-
From your Home screen, tap .
- Find and tap Settings > Power management.
Power saving modes
There are several power saving modes available for you to use if you want to make your battery last longer:
| STAMINA mode |
Disable Wi-Fi® and mobile data when the
screen is turned off, and restrict hardware performance.  appears in the status bar when this mode takes effect. |
| Ultra STAMINA mode |
Limit your device’s functionality to core tasks such as making
phone calls and sending SMS messages.  appears in the status bar once this mode is activated. |
| Low-battery mode |
Modify your device’s behaviour, for example, to adjust screen
brightness and the screen timeout setting, when the battery level
drops below a certain percentage.  appears in the status bar when
this mode takes effect. |
| Location-based Wi-Fi |
| Set your device to only activate the Wi-Fi® function when it comes within range of a saved Wi-Fi® network. |
| Queue background data |
| Optimise outgoing traffic when the screen is off by sending data at pre-defined intervals. |
To activate a power saving mode
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From your Home screen, tap .
- Find and tap Settings > Power management .
- To activate your preferred mode, drag the relevant slider to the right or mark the relevant checkbox and then confirm, if necessary.
- If no slider or checkbox is available, tap the name of the mode that you want to activate, then confirm, if necessary.
STAMINA mode feature overview
STAMINA mode has several features that allow you to optimise your battery performance:
| Extended standby |
| Prevent applications from using data traffic by disabling Wi-Fi® and mobile data when the screen is off. You can exclude some applications and services from being paused when this feature is active. |
| STAMINA clock |
| Keep network connections paused in situations where you frequently press the power key to check the time. |
| Extended usage |
| Restrict hardware performance when you are using your device. |
To activate STAMINA mode features
-
From your Home screen, tap .
- Find and tap Settings > Power management , then tap STAMINA mode.
- Activate STAMINA mode if it is deactivated.
- Mark the checkboxes beside the features that you want to activate, then tap Activate, if prompted.
To select which applications to run in STAMINA mode
-
From your Home screen, tap .
- Find and tap Settings > Power management , then tap STAMINA mode.
- Activate STAMINA mode if it is deactivated.
- Make sure that the Extended standby checkbox is marked, then tap Apps active in standby > Add applications.
- Scroll left or right to view all applications and services, then mark the relevant checkboxes for the applications that you want to run.
- When you're finished, tap Done.
