Sony Xperia SM13 User Manual page 36

• Use a Wi-Fi network instead of roaming when abroad. Roaming is scanning for
your home network and puts additional demands on your battery as your device
must transmit with a higher output power, see
• Change the synchronization settings for your email, calendar and contacts.
• Check the applications that have a high battery consumption and consider the
battery saving tips provided on your device for these applications.
• Change the notification level for an application, see
• Turn off the location-sharing permission for an application, see
settings on page 56.
• Uninstall applications that you are not using, see
• Use a Sony original handsfree device to listen to music. Handsfree devices
consume less battery than your device's loudspeakers.
• Restart your device every now and then.
To make specific applications exempt from optimization
You can make applications exempt from being optimized.
1 Find and tap Settings > Battery.
2 Tap (Menu icon) and select Power-saving exceptions. You will see a list of
applications that are not optimized.
3 To add or remove applications from this exemption list, tap APPS and select or de-
select an application from the list to edit its exception settings.
4 The list of applications that are exempt will get updated according to your settings.
Hint
You can also configure Power-saving exceptions from Settings > Apps & notifications >
Advanced > Special app access > Power-saving feature.
STAMINA mode
Depending on the STAMINA level, different features will be restricted or disabled in
order to reduce battery consumption. These include rendering performance,
animation and screen brightness, image enhancement, background app data
syncing, vibration except for incoming calls, streaming and GPS while the screen is
off. (STAMINA mode icon) appears in the status bar.
Hint
The device will suggest that you activate STAMINA mode if the battery is likely to run out
before the next expected charging session. Tap Settings > Battery > STAMINA mode > Smart
STAMINA notification, and then tap the switch to enable or disable this function.
To activate or deactivate STAMINA mode
1 Find and tap Settings > Battery.
2 Tap STAMINA mode and tap the switch to activate or deactivate the function.
When STAMINA mode is activated you can select additional options, for example
you can adjust the Auto-start percentage according to your preferences.
Hint
You can exempt applications from being optimized by STAMINA mode in the Power-saving
feature menu.
Ultra STAMINA mode
Your battery time is extensively prolonged, but available apps are limited and
mobile data and Wi-Fi are disabled. Calling and SMS are still available. Your Home
screen is changed and
To activate Ultra STAMINA mode
1 Find and tap Settings > Battery.
Wi-Fi on page 46.
(Ultra STAMINA mode icon) appears in the status bar.
36
Internet version. For personal use only.
Notifications on page 29.
Application
Application screen on page 23.