Zte Z837VL User Manual page 143

location and select Phone or SD card to store items in the
phone storage or the installed microSDHC card.
In the Portable storage section, you can manage the installed
microSDHC card. For more information about using the card,
see Using the microSDHC Card as Portable
Battery
Check how much power remains for the battery and what has
been using the battery. You can touch an app to adjust its
settings in order to save battery life.
Touch > Battery saver to turn on or off the battery saver
feature, which reduces your phone's performance and limits
vibration, location services and most background data to
improve battery life.
Touch > Battery optimization. Battery optimization helps
prolong battery standby time when you're not using the phone.
If there are apps that you don't want battery optimization
enabled, you can turn the feature off in those apps. Just touch
Not optimised > All apps, touch the app name and then touch
Don't optimize > DONE.
Apps
The Apps settings menu allows you to see apps installed on
your phone and manage them.
Touch an app to see its information. The following options may
be available:

FORCE STOP: Stop the app.
143
Storage.