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Chapter 2: Basic Checkout
The Backup Battery
16 WORKABOUT PRO Hand-Held Computer With Windows Mobile 5.0 User Manual
2.1.2 The Backup Battery
To preserve data stored in your WORKABOUT PRO while you swap the main
battery, the unit is equipped with an internal backup battery
–a standard Lithium
Alloy Manganese Dioxide coin battery
–a Maxell ML2032. The backup battery will
supply 5 minutes of continuous power while you install a charged, main battery.
The backup battery is trickle charged from the main battery. Provided that the main
battery contains power, the backup battery will maintain a charge whether the
WORKABOUT PRO is switched on or off, in a docking station or a cradle. Even
when the main battery reaches its Suspend Threshold (refer to “Suspend Threshold”
on page 137) and the hand-held shuts down, the backup battery will continue to
draw a trickle charge from the main battery to protect the data stored in the unit until
a charged main battery is installed.
Note: The backup battery takes approximately 100 hrs to fully charge from a
fully discharged (flat) state. While you can continue to use the WORK-
ABOUT PRO, replacing the main battery while the backup battery is not
fully charged is not recommended because you risk losing the data stored
on the unit.
2.1.2.1 Backup Battery Gas Gauge
To safely replace the main battery and preserve the data stored in the
WORKABOUT PRO, the backup battery should contain a minimum of 80% of its
charge capacity. The Battery tab in the Power applet displays a gas gauge to indicate
the charge remaining in the backup battery from 0 to 100%. To check the backup
battery capacity, tap on the Settings menu and then tap on Power applet followed by
System>Battery.
For more details about replacing batteries, refer to “Removing And Installing The
Battery Pack” on page 34 and “Safely Swapping The Main Battery” on page 35.
2.2 Turning The WORKABOUT PRO On and Off
2.2.1 Installing The Battery And Switching The Unit On
• Turn the fasteners at the base of the battery cover counter-clockwise to
unlock the cover and remove it. The top of the stylus is slot-shaped to help
you loosen the fasteners.
• Slide the charged battery into the unit. Replace the battery cover, and turn the
fasteners at the base of the battery cover clockwise to lock the battery in place.