Use the original charger to maintain optimal battery performance over the life of your device.
Insert the Power cable into the DC port of the device.
Insert the opposite end into the adapter.
Plug the adapter into a wall outlet. Note: When unplugged from an outlet, the device may be turned on and, is able to project for 2.5 hours but the brightness setting can not go above medium. Mobile hotspot (no projector) may be used for up to 10 hours when unplugged.
When the Battery is charging, the Charging icon will display in the Notification bar.
When the Battery is fully charged, the Fully charged icon will display in the Notification bar.
To learn more about your charging your battery download the user manual from www.att.com/devicehowto.