HP EliteBook 8740w Mobile Workstation - Manual (Page 8)

Using power plans ............................................................................................................. 57
Viewing the current power plan ......................................................................... 57
Selecting a different power plan ........................................................................ 57
Customizing power plans .................................................................................. 58
Setting password protection on wakeup ............................................................................ 58
Using Power Assistant (select models only) ...................................................................................... 58
Starting Power Assistant .................................................................................................... 58
Using external AC power .................................................................................................................... 59
Connecting the AC adapter ............................................................................................... 59
Using battery power ........................................................................................................................... 60
Finding battery information in Help and Support ............................................................... 60
Using Battery Check .......................................................................................................... 61
Displaying the remaining battery charge ........................................................................... 61
Inserting or removing the battery ....................................................................................... 61
Charging a battery ............................................................................................................. 62
Maximizing battery discharge time .................................................................................... 63
Managing low battery levels .............................................................................................. 63
Identifying low battery levels ............................................................................. 63
Resolving a low battery level ............................................................................. 64
Resolving a low battery level when external power is available ....... 64
Resolving a low battery level when a charged battery is
available ........................................................................................... 64
Resolving a low battery level when no power source is
available ........................................................................................... 64
Resolving a low battery level when the computer cannot exit
Hibernation ....................................................................................... 64
Calibrating a battery ........................................................................................................... 64
Step 1: Fully charge the battery ........................................................................ 64
Step 2: Disable Hibernation and Sleep ............................................................. 65
Step 3: Discharge the battery ............................................................................ 65
Step 4: Fully recharge the battery ..................................................................... 66
Step 5: Reenable Hibernation and Sleep .......................................................... 66
Conserving battery power .................................................................................................. 66
Storing a battery ................................................................................................................ 67
Disposing of a used battery ............................................................................................... 67
Replacing the battery ......................................................................................................... 67
Testing an AC adapter ....................................................................................................................... 67
Shutting down the computer ............................................................................................................... 68
6 Drives ............................................................................................................................................................. 69
Identifying installed drives .................................................................................................................. 69
Handling drives ................................................................................................................................... 69
Improving hard drive performance ..................................................................................................... 70
Using Disk Defragmenter ................................................................................................... 70
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