5 Power management

 

Setting power options .........................................................................................................................

47

Using power-saving states .................................................................................................

47

Initiating and exiting Sleep ................................................................................

48

Initiating and exiting Hibernation .......................................................................

48

Using the battery meter .....................................................................................................

49

Using power plans .............................................................................................................

49

Viewing the current power plan .........................................................................

49

Selecting a different power plan ........................................................................

49

Customizing power plans ..................................................................................

49

Setting password protection on wakeup ............................................................................

50

Using external AC power ....................................................................................................................

51

Connecting the AC adapter ...............................................................................................

52

Testing an AC adapter .......................................................................................................

53

Using battery power ...........................................................................................................................

54

Finding battery information in Help and Support ...............................................................

54

Using Battery Check ..........................................................................................................

54

Displaying the remaining battery charge ...........................................................................

55

Inserting or removing the battery .......................................................................................

55

Charging a battery .............................................................................................................

56

Maximizing battery discharge time ....................................................................................

57

Managing low battery levels ..............................................................................................

57

Identifying low battery levels .............................................................................

57

Resolving a low battery level .............................................................................

58

Resolving a low battery level when external power is available .......

58

Resolving a low battery level when a charged battery is

 

available ...........................................................................................

58

Resolving a low battery level when no power source is

 

available ...........................................................................................

58

Resolving a low battery level when the computer cannot exit

 

Hibernation .......................................................................................

58

Calibrating a battery ...........................................................................................................

58

Step 1: Fully charge the battery ........................................................................

58

Step 2: Disable Hibernation and Sleep .............................................................

59

Step 3: Discharge the battery ............................................................................

60

Step 4: Fully recharge the battery .....................................................................

60

Step 5: Reenable Hibernation and Sleep ..........................................................

61

Conserving battery power ..................................................................................................

61

Storing a battery ................................................................................................................

61

Disposing of a used battery ...............................................................................................

62

Replacing the battery .........................................................................................................

62

Switching between graphics modes (select models only) ..................................................................

63

Shutting down the computer ...............................................................................................................

64

vii