HP Power Management manual Discharging the battery

Step 2: Discharging the battery

Before you begin a full discharge, disable hibernation.

To disable hibernation:

1.Select Start > Control Panel > Performance and Maintenance > Power Options > Hibernate tab.

2.Clear the Enable hibernation check box.

3.Click Apply.

The computer must remain on while the battery is being discharged. The battery can discharge whether or not you are using the computer but will discharge faster while the computer is in use.

●If you plan to leave the computer unattended during the discharge, save your information before beginning the discharge procedure.

●If you use the computer occasionally during the discharge procedure and have set energy-saving timeouts, expect the following performance from the system during the discharge process:

◦The monitor will not turn off automatically.

◦Hard drive speed will not decrease automatically when the computer is idle.

◦System-initiated hibernation will not occur.

To fully discharge a battery:

1.Right-click the Power Meter icon in the notification area, at the far right of the taskbar, and then click Adjust Power Properties.

– or –

Select Start > Control Panel > Performance and Maintenance > Power Options.

2.Record the 4 settings listed in the Running on batteries and Plugged in columns so that you can reset them after the calibration.

3.Set the 4 options to Never.

4.Click OK.

5.Unplug the computer from its external power source, but do not turn off the computer.

6.Run the computer on battery power until the battery is fully discharged. The battery light begins to blink in an amber color when the battery has discharged to a low-battery condition. When the battery is fully discharged, the battery light turns off and the computer shuts down.

24 Chapter 7 Batteries