5Start
Battery life
Your phone processes tons of information and apps at 4G 
LTE speed. Depending on what you use, that can take a lot of 
power.
When your phone is stationary, not charging, or not in use for 
a period of time, unnecessary background processes are 
shut down to optimize battery life.
To see what’s using up battery power, tap Apps   
>  
Settings
 > 
Battery
.
To help improve battery life, tap Apps   >   
Settings
 
> 
Battery
 > Menu   > 
Battery saver
.
Tip: To quickly open 
Settings
, swipe the status bar or lock 
screen down with two fingers and tap  .
Tips & tricks
To save even more battery life between charges, you could 
reduce:
• Wi-Fi and Bluetooth® use: Tap Apps   >   
Settings
 
> 
Wi-Fi
 or 
Bluetooth
 and tap the switch at the top to turn 
them off when you don’t need them.
• GPS use: Tap Apps   >   
Settings
 > 
Location
 > 
Mode
 
> 
Battery saving
 to turn off GPS tracking.
• Display brightness: Tap Apps   >   
Settings
 > 
Display
 
> 
Brightness level
 and drag the brightness slider left. Make 
sure 
Adaptive brightness
 is also turned on.
• Display timeout delay: Tap Apps   >   
Settings
 
> 
Display
 > 
Sleep
 > (shorter setting).
• Activity of seldom used apps: Tap Apps   >   
Settings
 
> 
Battery
, then tap Menu   > 
Battery optimization
 > 
All 
apps
. Tap the app you want to adjust, then tap 
Optimize
.
• Widgets that stream information to your home screen, like 
news or weather.
• Unused online accounts that you registered: Tap Apps   
>  
Settings
 > 
Accounts
. Tap the account you want to 
remove. Tap it again, then tap Menu   > 
Remove account
.
• Recording or watching videos, listening to music, or taking 
pictures.
Warning: Don't try to remove or replace the battery 
yourself—doing so may damage the battery and could cause 
burning and injury. If your phone becomes unresponsive, try 
a reboot—press and hold the Power button until the screen 
goes dark, and your phone restarts.