Your phone is like a small computer, giving you tons of information and apps. Depending on what you use, that can take a lot of power. Plan on charging the phone each night so it's ready for the next day.
The initial setup of your phone involves transferring lots of data, which may drain the battery faster than usual. After initial setup and a few charging cycles, the battery will reach optimum performance.
Using the charger that came with the phone, insert the USB end into the phone.
Weaker chargers take longer to charge the phone, and if you use the phone while charging, may not charge it at all.
Insert the plug into an electrical outlet.
When the phone is off and charging, you’ll see the outline of a battery and a percentage. If the battery is completely discharged, this will not appear until the phone has received the minimum voltage required to boot.
When the phone is on and charging, you’ll see
in the status bar.
If you’re having problems, try these troubleshooting steps.