The battery pack can be charged even while you are using your VAIO computer when the computer is connected to a power source. The charging time may vary depending on operating conditions.
The charging time varies depending on ambient temperature.
Note that at a low ambient temperature, it takes longer time to charge the battery pack.
Open the desktop and select the battery icon, such as (on battery) or (plugged in), in the desktop notification area to check the battery status of your VAIO computer. To open the desktop, see Opening the Desktop.