Use the original charger and battery to maintain optimal battery performance over the life of your device. Note: The device takes approximately two hours to charge through a power outlet. A full charge provides ~12 hrs hours of talk time, or ~300 hour of standby time.
Insert the microUSB end of the microUSB cable into the microUSB port at the base 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.
When the battery is charging, the Charging icon will display in the Notification bar.
When charging is complete, the Fully charged icon will display.
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 your charging your battery, from a computer download the user manual from www.att.com/devicehowto. Note: For information about extending your battery performance, see the 'Battery life' tutorial.