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18 | HP Jornada 680/680e Users Guide
The AC adapter includes two parts:
the power cable and the adapter.
To connect to AC power
1. Connect the cable from the AC adapter to the DC
jack on the right side of your HPJornada.
2. Connect the power cable to the AC adapter.
3. Plug the power cable into an AC power outlet.
Activating the backup battery
The backup battery protects your data when the main
battery runs out of power. The backup battery does not
provide enough power to operate your HP Jornada, but it
will preserve your data while you replace the main battery
or while you connect to AC power to recharge. The 3-V
CR2032 coin-cell backup battery is preinstalled. When you
begin using your HP Jornada, you do not need to remove the
cover plate or install the backup batterysimply activate
the backup battery by using the following procedure.