Falcon
®
4220 Quick Reference Guide
14
Falcon
®
4220 Windows
®
CE PDA
Figure 9. Quad-Slot Battery Charger
Backup Battery
The backup battery in the PDA is a 25mAh rechargeable backup bat-
tery that holds system data at least 2 hours without main battery.
The backup battery is charged off the battery pack, so it is important
to keep the battery pack with at least a minimal charge so the unit
can maintain date, time, data, and other settings.
Setting Up the PDA
This section covers the basic aspects of preparing the Falcon PDA for
use.
Starting the Device
Powering On:
Press the
Power/Backlight
key briefly to turn the
unit on. The
Backlight
comes on automatically. Press this key again
briefly to turn the unit off. To turn the
Backlight
off while the unit is on,
press and hold the key for at least a second. This key acts to toggle
the
Backlight
function off and on.
Status LEDs
High Capacity
Battery Pack
Standard Battery Pack
CAUTION
If you remove the battery or the battery completely discharges, there is a two (2) hour window in
which to insert a charged battery before the backup battery completely discharges and the con-
tents of the RAM memory are lost. It is a good idea to keep your data and applications in Flash
Memory for that reason. Refer to "Flash Memory" on page
26
for more information.
If both the battery pack and the backup battery are allowed to discharge completely, you must
recharge both batteries for thirteen (13) hours.
