Settings
Battery
Check the remaining battery power and time to use the device. For devices with low battery levels, conserve battery power by activating power saving features.
On the Settings screen, tap Device maintenance →Battery.
•The usage time left shows the time remaining before the battery power runs out. Usage time left may vary depending on your device settings and operating conditions.
•You cannot receive notifications from apps that use power saving mode.
Managing the battery
You can save battery power by preventing specified apps that are running in the background from using battery power.
Also, tap 
→Advanced settings, and then tap the Put unused apps to sleep switch to activate it when apps are not being used.
You can set the device to charge the battery more quickly. Tap 
→Advanced settings and tap the Fast cable charging switch to activate it.
Storage
Check the status of the used and available memory.
On the Settings screen, tap Device maintenance →Storage.
The actual available capacity of the internal memory is less than the specified capacity because the operating system and default apps occupy part of the memory. The available capacity may change when you update the device.
Managing the memory
To delete residual files, such as cache, tap CLEAN NOW. To delete files or uninstall apps that you do not use any more, select a category under User data. Then, tick items to select and tap DELETE or UNINSTALL.
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