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

Using power plans ............................................................................................................. 57
Viewing the current power plan ......................................................................... 57
Selecting a different power plan ........................................................................ 58
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 ............................................................................. 65
Resolving a low battery level when external power is available ....... 65
Resolving a low battery level when a charged battery is
available ........................................................................................... 65
Resolving a low battery level when no power source is
available ........................................................................................... 65
Resolving a low battery level when the computer cannot exit
Hibernation ....................................................................................... 65
Calibrating a battery ........................................................................................................... 65
Step 1: Fully charge the battery ........................................................................ 65
Step 2: Disable Hibernation and Sleep ............................................................. 66
Step 3: Discharge the battery ............................................................................ 66
Step 4: Fully recharge the battery ..................................................................... 67
Step 5: Reenable Hibernation and Sleep .......................................................... 67
Conserving battery power .................................................................................................. 67
Storing a battery ................................................................................................................ 67
Disposing of a used battery ............................................................................................... 68
Replacing the battery ......................................................................................................... 68
Testing an AC adapter ....................................................................................................................... 68
Shutting down the computer ............................................................................................................... 68
6 Drives ............................................................................................................................................................. 70
Identifying installed drives .................................................................................................................. 70
Handling drives ................................................................................................................................... 70
Improving hard drive performance ..................................................................................................... 71
Using Disk Defragmenter ................................................................................................... 71
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