User's Manual

6 Power management
Setting power devices ........................................................................................................................ 49
Using power-saving states ................................................................................................. 49
Initiating and exiting Sleep ................................................................................ 49
Initiating and exiting Hibernation ....................................................................... 49
Conserving power .............................................................................................................. 50
Using the battery meter ..................................................................................................... 50
Using power plans ............................................................................................................. 51
Viewing the current power plan ......................................................................... 51
Selecting a different power plan ........................................................................ 51
Customizing power plans .................................................................................. 51
Setting password protection on wakeup ............................................................................ 51
Using external AC power .................................................................................................................... 52
Connecting AC power ........................................................................................................ 52
Testing an AC adapter ....................................................................................................... 53
Using battery power ........................................................................................................................... 54
Identifying batteries ............................................................................................................ 54
Finding battery information in Help and Support ............................................................... 54
Using Battery Check .......................................................................................................... 54
Displaying the remaining battery charge ........................................................................... 55
Removing or inserting the primary 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
Using the accessory battery (select models only) ............................................................. 58
Identifying the accessory battery components .................................................. 59
Inserting or removing an accessory battery ...................................................... 59
Battery charging and discharging sequence .................................................... 61
Calibrating a battery ........................................................................................................... 61
Storing a battery ................................................................................................................ 62
Disposing of a used battery ............................................................................................... 62
Replacing the battery ......................................................................................................... 62
Shutting down the computer ............................................................................................................... 63
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