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OCIO/ ITS Infrastructure Deployment Branch HP/Compaq TC4400 Tablet PC User Guide
To charge the battery:
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).
Battery and Power Management
• 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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