Learn how to charge the battery.
About the battery
Your device has an internal, nonremovable, CTIA 1725-certified rechargeable battery. Use only Nokia approved chargers designated for this device. You can also use a compatible USB data cable to charge your device.
Do not attempt to remove the battery from the device. To replace the battery, take the device to your nearest authorised service facility.
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.
Only connect your device to products that have a USB-IF logo or have completed the USB-IF compliance program.
Authorised retail points may also offer a battery replacement service.
When your device is low on power, it goes into power save mode. To deactivate power save mode, press and hold the power key, and select Deactivate power saving. When power save mode is activated, you may not be able to modify the settings of certain applications.
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:
Connect the charger to a wall outlet.
Connect the charger to the phone.
When the phone indicates a full charge, disconnect the charger from the phone, 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.
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.
You can also use a compatible USB charger to charge your battery.
See About the 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 to a compatible device, such as a computer.
To avoid breaking the charger connector, be careful when connecting or disconnecting the charger cable.
If connected to a computer, you can synchronise your phone while charging.
Charging over USB can take longer to start, and may not work if you connect through a non-powered USB hub. Your phone charges more quickly when connected to a wall outlet.