HP G72-b50US Notebook PC - Manual (Page 7)

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
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