Power
Hardware and Software Guide 3–21
If you use the notebook occasionally during the discharge process 
described below and have set energy-saving timeouts, expect the 
following performance from your system during the discharge:
■ Any unsaved work from your current session will be lost 
when the battery pack is fully discharged and the notebook is 
shut down.
■ The system will not turn off a connected optional monitor.
■ The system will not decrease hard drive speed while the 
notebook is idle.
■ System-initiated standby will not occur.
To fully discharge the battery pack:
1. Disable hibernation. To disable hibernation:
Select Start > Control Panel > Performance and 
Maintenance
 > Power Options > Hibernate tab. Then clear 
the Enable hibernation check box
.
2. Display the settings on the Power Schemes tab. To access 
the
 Power Schemes tab:
Select Start > Control Panel > Performance and 
Maintenance > Power Options > Power Schemes tab.
3. Record all settings in the Plugged in column and all settings 
in the Running on batteries column, so you can reset them 
after calibration.
4. Use the drop-down lists to set each item in both columns 
to
 Never.
5. Select OK.
6. Disconnect the notebook from the external power source, 
but
 do not turn off the notebook.
7. Run the notebook on battery power until the battery pack is 
fully discharged. When the battery pack is fully discharged, 
the notebook is shut down.