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VAIO® Notebook Computer User Guide

To charge the second battery pack

Keep the battery pack in the computer while it is connected to AC power. The battery indicator flashes while the battery is charging. See also “To charge the battery pack” on page 11 for more information.

Battery indicators

Second battery pack (not supplied)

Battery pack (supplied)

To determine the amount of time the battery lasts, see “Displaying Battery Information” in the online document Customizing Your VAIO® Notebook Computer.

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Sony PCG-F430, PCG-F450 manual