Learn how to charge the battery.
Charge the battery
Your battery has been partially charged at the factory, but you may need to recharge it before you can switch on your phone for the first time.
If the phone indicates a low charge, do the following:
You do not need to charge the battery for a specific length of time, and you can use the phone while it is charging.
If the battery is completely discharged, it may take several minutes before the charging indicator is displayed or before any calls can be made.
You can also use a compatible USB charger to charge your battery.
Charge the battery over USB
Battery low, but you don't have a charger with you? You can use a compatible USB cable to connect your phone to a compatible device, such as a computer.
You can use USB charging when a wall outlet is not available. Data can be transferred while charging the device. The efficiency of USB charging power varies significantly, and it may take a long time for charging to start and the device to start functioning.
You can use your phone while it's charging.
To avoid breaking the charger connector, be careful when connecting or disconnecting the charger cable.
See Prolong battery life .