Setting power devices ........................................................................................................................ 39
Using power-saving states ................................................................................................. 39
Initiating and exiting Sleep ................................................................................ 39
Initiating and exiting Hibernation ....................................................................... 40
Using the battery meter ..................................................................................................... 40
Using power plans ............................................................................................................. 40
Viewing the current power plan ......................................................................... 40
Selecting a different power plan ........................................................................ 41
Customizing power plans .................................................................................. 41
Setting password protection on wakeup ............................................................................ 41
Using external AC power .................................................................................................................... 41
Connecting AC power ........................................................................................................ 42
Testing an AC adapter ....................................................................................................... 42
Using battery power ........................................................................................................................... 43
Finding battery information in Help and Support ............................................................... 43
Using Battery Check .......................................................................................................... 43
Displaying the remaining battery charge ........................................................................... 44
Inserting or removing the battery ....................................................................................... 44
Charging a battery ............................................................................................................. 45
Maximizing battery discharge time .................................................................................... 46
Managing low battery levels .............................................................................................. 46
Identifying low battery levels ............................................................................. 46
Resolving a low battery level ............................................................................. 47
Resolving a low battery level when external power is available ....... 47
Resolving a low battery level when a charged battery is
available ........................................................................................... 47
Resolving a low battery level when no power source is
available ........................................................................................... 47
Resolving a low battery level when the computer cannot exit
Hibernation ....................................................................................... 47
Calibrating a battery ........................................................................................................... 47
Step 1: Fully charge the battery ........................................................................ 47
Step 2: Disable Hibernation and Sleep ............................................................. 48
Step 3: Discharge the battery ............................................................................ 48
Step 4: Fully recharge the battery ..................................................................... 49
Step 5: Reenable Hibernation and Sleep .......................................................... 49
Conserving battery power .................................................................................................. 49
Storing a battery ................................................................................................................ 49
Disposing of a used battery ............................................................................................... 50
Replacing the battery ......................................................................................................... 50
Shutting down the computer ............................................................................................................... 50
7 Memory modules
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