Sony VAIO VAIO PCG505F User Manual page 81

You can obtain detailed information about the batteries.
Double-click the battery icon on the toolbar to display the
BatteryScope window.
The screen appears displaying the Battery tab, which contains
information such as the estimated time-to-empty and the charging
time.
You can customize the BatteryScope toolbar to suit your portable
computing needs, including modifications to the alarm settings. Refer to
the BatteryScope Help for more information.
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