Use the original charger and battery to maintain optimal battery performance over the life of your device. Note: This device supports wireless charging. Wireless chargers sold separately.
Insert the microUSB end of the microUSB cable into the microUSB port at the base of the device.
Plug the Charger into a wall outlet. If necessary, connect the USB cable to the charger.
Alternatively, you can insert the USB end of the cable into a computer to charge. Note:Your device charges quicker using a power outlet than when connected to a laptop or other power source.
When the phone is charging, the Charging icon will be displayed in the Notification bar. Note: The device displays the estimated remaining time to charge after being plugged in, along with the battery edge indicator showing the current battery percentage. Using the provided charger, it will take approximately 80 minutes to charge the device from 0-50% and 190 minutes from 0-100%.
When the phone is fully charged, the Fully charged icon will be displayed in the Notification bar.
 This phone’s maximum talk time is 22.5 hours, standby time is up to 17 days on LTE, up to 17.6 days on 3G, up to 16.6 days on 2G.
To learn more about charging your battery, swipe to the bottom of the screen, then tap User manual. To download the user manual from a computer, go to att.com/devicehowto. Select your device, then scroll to the bottom and selectUser manual. Note: For information about extending your battery performance, search tutorials for 'Battery life.' Note:For information about extending your battery performance, see the ‘Battery life’ tutorial.