Use the original Charger and Battery to maintain optimal battery performance over the life of your device.
To charge the battery the fastest, plug the Charging cable that came with the phone into the port at the bottom of the device.
Insert the USB end of the microUSB cable into the Power adapter.
Plug the Power adapter into a power source to begin charging.
Alternatively, the device can be charged with a laptop or desktop computer using USB. Insert the USB end of the microUSB cable into an available USB port on the computer. Note: Your device charges quicker using a power outlet then when connected to a laptop or other power source.
When the device is charging, the Charging icon will display in the notification bar.
If the device will not turn on the battery may be completely drained. Charge the battery before attempting to power on again.
To learn more about charging your battery, from a computer, download the user manual at www.att.com/devicehowto.