Use the original charger to maintain optimal battery performance over the life of your device.
To charge via a power outlet, insert the microUSB end of the microUSB cable into the microUSB port on the device. Note: Your device charges quicker using a power outlet then when connected to a laptop or other power source.
Plug the opposite end of the microUSB cable into the charger adapter, then plug it into an available wall outlet.
To charge via a computer, insert the microUSB end of the microUSB cable into the microUSB port on the device.
Insert the USB end of the microUSB cable into an open port on the computer.
When the phone is charging, the Charging icon will appear in the notification bar.
When the device is fully charged, the Battery icon will display entirely green.