To Charge The Second Battery Pack; To Remove The Second Battery Pack - Sony PCG-F640 VAIO User Guide (primary manual) User Manual

VAIO Notebook 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 27 for more information.
Charging the second battery
To determine the amount of time the battery lasts, see "Displaying Battery
Information" in the online manual "Customizing Your VAIO® Notebook" .

To remove the second battery pack

If you attach two battery packs, you can remove either of them without shutting
down the computer. When removing one battery pack, make sure that the other
battery pack's indicator light is on. If the indicator light of the battery pack you
are removing is on, right-click the battery icon on the task tray and click the
"Switch discharge battery" option.
54
Battery pack (supplied)
Battery indicators
Second battery pack
(optional)