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

46

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

47

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

47

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

48

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

49

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

49

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

49

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

49

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

50

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

50

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

51

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

52

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

52

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

52

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

53

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

53

Resolving a low battery level when a charged battery is

 

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

53

Resolving a low battery level when no power source is

 

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

53

Resolving a low battery level when the computer cannot exit

 

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

53

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

53

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

54

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

54

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

56

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

56

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

57

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

57

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

57

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

58

7 Drives and external devices

 

Drives .................................................................................................................................................

59

Identifying installed drives ..................................................................................................

59

Handling drives ..................................................................................................................

59

Improving hard drive performance .....................................................................................

60

Using Disk Defragmenter ..................................................................................

60

Using Disk Cleanup ...........................................................................................

60

Using HP ProtectSmart Hard Drive Protection (select models only) .................................

61

Identifying HP ProtectSmart Hard Drive Protection status ................................

61

Managing power with a parked hard drive ........................................................

61

Using HP ProtectSmart Hard Drive Protection software ...................................

62

Using external drives .........................................................................................................

62

Connecting optional external drives ..................................................................

62

Using the external optical drive (select models only) .........................................................

63

Removing an optical disc when the disc tray will not open ...............................

63

Sharing optical drives ........................................................................................................

64

External devices .................................................................................................................................

66

Using a USB device ...........................................................................................................

66

vii