HP Presario CQ42-100 - Notebook PC User Manual page 8

Using Battery Check .......................................................................................................... 65
Inserting or removing the battery ....................................................................................... 65
Charging a battery ............................................................................................................. 66
Maximizing battery discharge time .................................................................................... 67
Managing low battery levels .............................................................................................. 67
Calibrating a battery ........................................................................................................... 68
Conserving battery power .................................................................................................. 70
Storing a battery ................................................................................................................ 70
Disposing of a used battery ............................................................................................... 71
Replacing the battery ......................................................................................................... 71
Shutting down the computer ............................................................................................................... 71
6 Drives
Handling drives ................................................................................................................................... 73
Using external drives .......................................................................................................................... 74
Improving hard drive performance ..................................................................................................... 75
Using Disk Defragmenter ................................................................................................... 75
Using Disk Cleanup ........................................................................................................... 75
Replacing the hard drive .................................................................................................................... 76
7 External devices and external media cards
Using a USB device ........................................................................................................................... 80
Connecting a USB device .................................................................................................. 80
Removing a USB device .................................................................................................... 81
Using Digital Media Slot cards ........................................................................................................... 82
Inserting a digital card ........................................................................................................ 82
Removing a digital card ..................................................................................................... 83
8 Memory modules
viii
Identifying low battery levels ............................................................................. 67
Resolving a low battery level ............................................................................. 68
Resolving a low battery level when external power is available ....... 68
Resolving a low battery level when a charged battery is
available ........................................................................................... 68
Resolving a low battery level when no power source is
available ........................................................................................... 68
Resolving a low battery level when the computer cannot exit
Hibernation ....................................................................................... 68
Step 1: Fully charge the battery ........................................................................ 68
Step 2: Disable Hibernation and Sleep ............................................................. 69
Step 3: Discharge the battery ............................................................................ 69
Step 4: Fully recharge the battery ..................................................................... 70
Step 5: Reenable Hibernation and Sleep .......................................................... 70