To Remove The Second Battery Pack - Sony VAIO PCG-FX310 User Manual

3 When the battery is 85 percent full, the battery indicator turns off.
To charge the battery completely, continue charging for an additional hour. See
"Displaying Battery Information" for more information.
Charging the second battery
To determine the amount of time the battery lasts, see "Displaying Battery
Information" for more information.

To remove the second battery pack

If you attach two battery packs, you can remove either of them without shutting
down the notebook.
1 When removing one battery pack, verify that the other battery pack's
indicator is on.
2 If the indicator 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.
3 Locate the release lever on the bottom of the weight saver.
Using a Second Battery Pack
Battery indicators
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