HP EliteBook 8440P 5 Power management

5 Power management
Setting power options .........................................................................................................................	60
Using power-saving states .................................................................................................	60
Initiating and exiting Sleep ................................................................................	60
Initiating and exiting Hibernation .......................................................................	61
Using the battery meter .....................................................................................................	61
Using power plans .............................................................................................................	61
Viewing the current power plan .........................................................................	62
Selecting a different power plan ........................................................................	62
Customizing power plans ..................................................................................	62
Setting password protection on wakeup ............................................................................	62
Using Power Assistant (select models only) ......................................................................................	63
Starting Power Assistant ....................................................................................................	63
Using external AC power ....................................................................................................................	63
Connecting the AC adapter ...............................................................................................	64
Using battery power ...........................................................................................................................	64
Finding battery information in Help and Support ...............................................................	65
Using Battery Check ..........................................................................................................	65
Displaying the remaining battery charge ...........................................................................	65
Inserting or removing the battery .......................................................................................	65
Charging a battery .............................................................................................................	66
Maximizing battery discharge time ....................................................................................	67
Managing low battery levels ..............................................................................................	67
Identifying low battery levels .............................................................................	68
Resolving a low battery level .............................................................................	68
Resolving a low battery level when external power is available .......	68
Resolving a low battery level when a charged battery is
available ...........................................................................................	68
Resolving a low battery level when no power source is
available ...........................................................................................	68
Resolving a low battery level when the computer cannot exit
Hibernation .......................................................................................	68
Calibrating a battery ...........................................................................................................	69
Step 1: Fully charge the battery ........................................................................	69
Step 2: Disable Hibernation and Sleep .............................................................	69
Step 3: Discharge the battery ............................................................................	70
Step 4: Fully recharge the battery .....................................................................	70
Step 5: Reenable Hibernation and Sleep ..........................................................	70
Conserving battery power ..................................................................................................	71
Storing a battery ................................................................................................................	71
Disposing of a used battery ...............................................................................................	71
Replacing the battery .........................................................................................................	71
Testing an AC adapter .......................................................................................................................	73
Shutting down the computer ...............................................................................................................	73
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