Adjusting webcam properties .............................................................................................

37

6 Power management

 

Setting power devices ........................................................................................................................

39

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

39

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

39

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

40

Conserving power ..............................................................................................................

40

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

40

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

41

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

41

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

41

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

41

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

42

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

42

Connecting AC power ........................................................................................................

43

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

44

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

44

Identifying batteries ............................................................................................................

44

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

45

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

45

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

45

Removing or inserting the primary battery .........................................................................

45

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

46

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

47

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

47

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

47

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

49

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

49

Resolving a low battery level when a charged battery is

 

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

49

Resolving a low battery level when no power source is

 

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

49

Resolving a low battery level when the computer cannot exit

 

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

49

Using the accessory battery (select models only) .............................................................

49

Identifying the accessory battery components ..................................................

50

Inserting or removing an accessory battery ......................................................

50

Battery charging and discharging sequence .....................................................

52

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

52

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

53

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

53

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

53

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

53

vii