HP Pavilion dv7-4200 Notebook PC User Guide - Windows 7 - Page 58
Conserving battery power, System and Security
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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. 4. Recharge the battery. To recharge the battery: a. Connect the computer to external power until the battery is fully recharged. The computer can be used while the battery is recharging, but the battery charges faster if the computer is off. b. If the computer is off, turn it on when the battery is fully charged. 5. Re-enable Hibernation and Sleep. To re-enable Hibernation and Sleep: CAUTION: Failure to re-enable Hibernation after calibration might result in a full battery discharge and information loss if the computer reaches a critical battery level. 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. Re-enter the settings that you recorded for the items in the On battery column. d. Click Change advanced power settings. e. Click the plus sign next to Sleep, and then click the plus sign next to Hibernate after. f. Re-enter the setting that you recorded for On battery. g. Click OK. h. Click Save changes. Conserving battery power To conserve battery power: ● Select Windows Control Panel > System and Security > Power Options > Power Saver power plan. ● Shut down wireless and local area network (LAN) connections and exit modem applications when you are not using them. 48 Chapter 5 Power management