HP Pavilion Dm4 1000 Entertainment Notebook Pc Series Manual

Initiating and exiting Hibernation
The system is set at the factory to initiate Hibernation after 1,080 minutes (18 hours) of inactivity
when running on either battery power or external power, or when the battery reaches a critical battery
level.
Power settings and timeouts can be changed using Power Options in Windows Control Panel.
To initiate Hibernation:
▲Click Start, click the arrow next to the Shut down button, and then click Hibernate.
To exit Hibernation:
▲Briefly press the power button.
The...

Selecting a different power plan
▲Click the battery meter icon in the notification area, and then select a power plan from the list.
– or –
Select Start > Control Panel > System and Security > Power Options, and then select a
power plan from the list.
Customizing power plans
1.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.
2.Select a power plan, and then click Change plan settings....

WARNING!Do not charge the computer battery while you are onboard aircraft.
●When you are charging or calibrating a battery
●When you are installing or modifying system software
●When you are writing information to a CD, DVD, or BD
When you connect the computer to external AC power, the following events occur:
●The battery begins to charge.
●If the computer is turned on, the battery meter icon in the notification area changes appearance.
When you disconnect external AC power, the following events occur:...

Testing an AC adapter
Test the AC adapter if the computer exhibits any of the following symptoms when it is connected to
AC power:
●The computer will not turn on.
●The display does not turn on.
●The power lights are off.
To test the AC adapter:
1.Remove the battery from the computer.
2.Connect the AC adapter to the computer, and then plug it into an AC outlet.
3.Turn on the computer.
If the power lights turn on, the AC adapter is working properly.
Contact technical support for information on obtaining a...

Finding battery information in Help and Support
Help and Support provides the following tools and information about the battery:
●Battery Check tool to test battery performance
●Information on calibration, power management, and proper care and storage to maximize battery
life
●Information on battery types, specifications, life cycles, and capacity
To access battery information:
▲Select Start > Help and Support > Learn > Power Plans: Frequently Asked Questions.
Using Battery Check
Help and Support...

3.Rotate the battery into the battery bay until it is seated (2). The battery release latch
automatically locks the battery into place (3).
To remove the battery:
1.Turn the computer upside down on a flat surface.
2.Slide the battery release latch (1) to release the battery.
NOTE:The battery release latch automatically returns to its original position.
3.Pivot the battery (2) upward and remove it from the computer (3).
56 Chapter 5   Power management 

Charging a battery
WARNING!Do not charge the computer battery while you are onboard aircraft.
The battery charges whenever the computer is plugged into external power through an AC adapter,
an optional power adapter, an optional expansion product, or an optional docking device.
The battery charges whether the computer is off or in use, but it charges faster when the computer is
off.
Charging may take longer if a battery is new, has been unused for 2 weeks or more, or is much
warmer or cooler than room...

Identifying low battery levels
When a battery that is the sole power source for the computer reaches a low battery level, the battery
light blinks.
If a low battery level is not resolved, the computer enters a critical battery level, and the battery light
continues to blink.
The computer takes the following actions for a critical battery level:
●If Hibernation is enabled and the computer is on or in the Sleep state, the computer initiates
Hibernation.
●If Hibernation is disabled and the computer is on or...

Even if a battery is heavily used, it should not need to be calibrated more than once a month. It is also
not necessary to calibrate a new battery.
Step 1: Fully charge the battery
WARNING!Do not charge the computer battery while you are onboard aircraft.
NOTE:The battery charges whether the computer is off or in use, but it charges faster when the
computer is off.
To fully charge the battery:
1.Insert the battery into the computer.
2.Connect the computer to an AC adapter, optional power adapter,...

Step 3: Discharge the battery
The computer must remain on while the battery is being discharged. The battery can discharge
whether or not you are using the computer, but the battery will discharge 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...