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To fully charge the battery:
a. Insert the battery into the computer.
b. Connect the computer to an AC adapter, optional power adapter, optional expansion product,
or optional docking device, and then connect the adapter or device to an external power
source.
c. Leave the computer connected to external power until the battery is fully charged.
2. Disable Hibernation and Sleep. To disable Hibernation and Sleep:
a. Click the Battery Meter icon in the notification area, and then click More power options.
– or –
Select Start > Control Panel > System and Security > Power Options.
b. Under the current power plan, click Change plan settings.
c. Record the Turn off the display settings listed in the On battery column so they can be reset
after the calibration.
d. Change the Turn off the display settings to Never.
e. Click Change advanced power settings.
f. Click the plus sign next to Sleep, and then click the plus sign next to Hibernate after.
g. Record the On battery setting under Hibernate so it can be reset after the calibration.
h. Change the On battery setting to Never.
i. Click OK.
j. Click Save changes.
3. Discharge the battery. To discharge the battery:
a. Disconnect the computer from the external power source, but do not shut down the computer.
b. Run the computer on battery power until the battery is discharged.
The computer must remain on while the battery is being discharged. The battery discharges
whether or not you are using the computer, but the battery discharges faster while you are using
it.
●
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 does not shut down automatically.
◦
The hard drive speed does not decrease automatically when the computer is idle.
◦
System-initiated Hibernation does not occur.
44 Chapter 5 Power management