Zte N9517 User Manual page 123

 Battery: Check the battery use details of the app since last
full charge.
 Memory: Check how much memory has been used by the
app.
NOTE:
Not all options are available for the apps.
Storage
Tap the Home key >
memory information of the internal phone storage and the
microSDXC card.
Battery
Tap the Home key >
battery use details of the app since last full charge, or turn on or
off battery saver.
Memory
Tap the Home key >
average memory use and performance of your phone. You can
also check which apps use the most memory.
> Settings > Storage to view the
> Settings > Battery to check the
> Settings > Memory to monitor the
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