User's Manual

Managing Power 3-5
Backup Battery
Your Tablet PC comes with a backup battery to support hot swapping of the
main battery pack. The backup battery can sustain power for up to 3
minutes, which should be long enough for you to replace the battery pack.
Whenever you remove the main battery pack, the system instantly switches
to the backup battery. During this period, the system operation is not
interrupted but the brightness level will be fixed at a low level and cannot
be adjusted.
If you turn off the power before removing the main battery pack, the power
remains off (not responding to the press of power button) during the
replacement.
The backup battery will be charged when AC power is connected. Charging
starts when the backup battery capacity is below 85%. If needed, you can
also allow the main battery pack to charge the backup battery. (For setup
information, see “Advanced Menu” in Chapter 5 and the Charging Backup
Battery item.)
NOTE: The backup battery is not user-replaceable. It never functions as the
power source as long as the main battery pack is installed.
Replacing the Battery Pack
CAUTION:
z There is danger of explosion if the battery is incorrectly replaced.
Replace the battery only with the Tablet PC manufacturer’s battery
packs. Discard used batteries according to the dealer’s instructions.
z Do not attempt to disassemble the battery pack.
If you often rely on battery power for a long period of time while traveling,
you may consider the purchase of an additional battery pack from your
dealer and keep it with you in a fully charged state as a backup.
To replace the battery pack, follow these steps:
1. Lift the latch handle of the battery cover and turn it counterclockwise to
the unlock position. Then, detach the cover from the Tablet PC.