Compaq TC4400 User Manual

OCIO/ ITS Infrastructure Deployment Branch 

                                                                  HP/Compaq TC4400 Tablet PC User Guide 

Plug the AC adapter into the Tablet PC, then into a wall outlet or power strip. (Completely 
recharging the battery may take up to two hours, although the battery reaches an 80% charge in 
much less time). 

•  Use AC power when available to lengthen the battery’s usable life. The battery will 

charge automatically as you run on AC power, so leave the battery in the Tablet PC while 
you are working. 

•  Use AC power when installing software or writing to a CD, and for optimal battery life, 

when using a CD or DVD player. 

•  When using battery power, if you leave the Tablet PC unattended, place the system in 

Stand By or Hibernate. 

•  Keep in mind that the display, processor, PC Cards, SD cards, wireless cards, and 

accessory drives all draw on the battery, so adjust properties and disable unused 
accessories and PC Cards when operating on battery power. 

•  When using battery power, adjust the power mode and display brightness to lower 

settings to prolong the battery life. 

•  Turn off all wireless devices through the QMenu when not being used. 

Final 

                                 ACD00.60000-00.F*0-ITS 

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