HP SM 1800, XL180, XL192 Maintenance and Service Guide ch5battery&power

Please check out our eBay auctions for more great deals on Factory Service Manuals:

Presario 1800 Series

Models: XL180, XL181, XL182, XL183, XL185,

and XL190, XL191, XL192

Battery and Power Management

This chapter describes power management and proper battery operating practices for Presario 1800XL Series Notebooks. These practices include conservation of AC power and extending the operating life of the battery. The following sections also outline proper methods to start and shut down the Notebook in various situations.

Power Modes

Presario 1800XL Series Notebooks have three levels of low power: Hibernation, Standby, and Off.

Hibernation

Hibernation helps conserve battery life and protect data. The Notebook automatically enters Hibernation mode when the battery has little power left or when the Notebook (operating on battery power) is in Standby mode for more than one hour. As the Notebook enters Hibernation, it automatically stores the contents of its memory to the hard drive before shutdown. When the Notebook wakes from Hibernation, it returns to its former state.

Note: When the Notebook enters or wakes from Hibernation mode, a Progress window is displayed.

To activate Hibernation mode, press the Power button once.

To resume from Hibernation mode, press the Power button once.

Standby

Standby is a low-power mode, also referred to as Sleep mode. The Notebook maintains system information and open files while in Standby mode. Selecting Standby mode instead of turning off the Notebook when finished has two advantages: 1. It allows the Notebook to wake up faster than turning it off; 2. It saves more power than the Active-On mode.

CAUTION: Unsaved information is lost if the Notebook is turned off prior to system wake-up, or if a power loss occurs while using the AC adapter.

To activate Standby/Sleep mode, press Fn+F4 or click Start, select the Shut Down option, and then Standby.

To resume from Standby/Sleep mode, press any key.

RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE

1800 S

ERIES

ATTERY AND POWER MANAGEMENT

Presario 1800 Series

Models: XL180, XL181, XL182, XL183, XL185,

and XL190, XL191, XL192

Full Off

Off mode consumes no power. However, the battery charges while the Notebook is in Off mode if the battery is installed and the Notebook remains plugged into external AC power.

Note: Unsaved information is lost if the Notebook is shutdown without saving the data.

To activate Off mode, click the Start button on the Windows taskbar, click Shut Down, and then select shutdown from the options.

To resume from Off mode, press the Power button once.

WARNING: The Notebook must be shutdown (Off mode) when installing or replacing components. Follow the instructions for putting the Notebook into Off

mode, unplug it from the outlet, and remove the battery pack (see Removing the

Battery later in this guide) before servicing any parts.

Summary of Power Modes

The following table outlines entering and exiting the various power modes and the external indicators for each mode.

Standby Mode Hibernation Mode Off Mode

Automatic Activation

Manual Activation

Resume/Exit Press any key. Press Power

Indicators Power light flashes and

*The Notebook will not automatically enter Standby or Hibernation mode if using AC power. **Important: The Manual Shutdown procedure is not recommended unless the Standard

Shutdown is unsuccessful.

15 minutes if using battery power* (preset default)

Press Fn+F4 key combination or click Start on the Windows taskbar, and then Standby.

Moon on status display.

Shut Down

é icon appears

When battery is low or after 1 hour of Standby*.

Press Power ª button once.

ª button

once.

Power light is off, screen is blank, and Power appear on status display.

ª icon does not

Standard Shutdown: click Start on the Windows taskbar, click

Shut Down Shut down

Manual Shutdown**: Press and hold down the Power 4 seconds.