Customizing power plans .................................................................................. 65
Setting password protection on wakeup ............................................................................ 65
Using external AC power .................................................................................................................... 66
Connecting the AC adapter ............................................................................................... 67
Testing an AC adapter ....................................................................................................... 67
Using battery power ........................................................................................................................... 68
Finding battery information in Help and Support ............................................................... 68
Using Battery Check .......................................................................................................... 68
Displaying the remaining battery charge ........................................................................... 69
Inserting or removing the battery ....................................................................................... 69
Charging a battery ............................................................................................................. 70
Maximizing battery discharge time .................................................................................... 71
Managing low battery levels .............................................................................................. 71
Identifying low battery levels ............................................................................. 71
Resolving a low battery level ............................................................................. 71
Resolving a low battery level when external power is available ....... 71
Resolving a low battery level when a charged battery is
available ........................................................................................... 71
Resolving a low battery level when no power source is
available ........................................................................................... 72
Resolving a low battery level when the computer cannot exit
Hibernation ....................................................................................... 72
Calibrating a battery ........................................................................................................... 73
Step 1: Fully charge the battery ........................................................................ 73
Step 2: Disable Hibernation and Sleep ............................................................. 73
Step 3: Discharge the battery ............................................................................ 74
Step 4: Fully recharge the battery ..................................................................... 74
Step 5: Reenable Hibernation and Sleep .......................................................... 75
Conserving battery power .................................................................................................. 76
Storing a battery ................................................................................................................ 76
Disposing of a used battery ............................................................................................... 76
Shutting down the computer ............................................................................................................... 77
9 Security
Protecting the computer ..................................................................................................................... 78
Using passwords ................................................................................................................................ 79
Setting passwords in Windows .......................................................................................... 79
Setting passwords in Setup Utility ..................................................................................... 80
Administrator password ..................................................................................... 80
Managing an administrator password ............................................... 80
Entering an administrator password ................................................. 81
Power-on password .......................................................................................... 81
Managing a power-on password ...................................................... 81
Entering a power-on password ......................................................... 81
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