Your battery has been partially charged at the factory, but you may need to recharge it before you can switch on your device for the first time.
If the device indicates a low charge, do the following:
Connect the charger to a wall outlet.
Connect the charger to the device.
When the battery is fully charged, disconnect the charger from the device, then from the wall outlet.
You do not need to charge the battery for a specific length of time, and you can use the device while it is charging. During charging, the device may feel warm.
If the battery is completely discharged, it may take several minutes before the charging indicator is displayed or before any calls can be made.
If the battery has not been used for a long time, to begin charging, you may need to connect the charger, then disconnect and reconnect it.
Charging the device while listening to the radio may affect the quality of reception.