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2. When the battery is full, disconnect the charger from the phone, then from the wall outlet.

You don't need to charge the battery for a specific length of time, and you can use the phone while

it's charging.
When you start charging a completely empty battery, the start key flashes until the screen wakes

up and the charging progress is shown.
If the battery is completely discharged, it may take several minutes before the charging indicator is

displayed or before any calls can be made.

Tip: 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.
First connect the USB cable to the computer, then to your phone. When the battery is full, first

disconnect the USB cable from your phone, then from the computer.

The battery can be charged and discharged hundreds of times, but it will eventually wear out. When

the talk and standby times are noticeably shorter than normal, replace the battery.

Charge your phone wirelessly
No need for hassle with cables, just pop your device on a wireless charger, and it immediately starts

charging.
The charging areas on the phone and the charger need to touch, so make sure you align the phone

and charger properly. Not all phone models fit in all chargers.