We can come to know the battery charge condition by checking the status of "Charging LED".
If the "Charging LED is solid green, then it indicates that the battery is under charging.
If the "Charging LED is OFF (without any indication), then it indicates that the battery is fully charged.
If the "Charging LED is solid green, then it indicates that the battery is under charging.
If the "Charging LED is OFF (without any indication), then it indicates that the battery is fully charged.