16 FC300 Getting Started Guide
Proprietary and Confidential
The Status area shows JACKED if the main battery is receiving
external power.
3. Select OK.
4. Close the Control Panel to return to the desktop.
Backup Battery
The FC300 uses an internal backup battery to retain data for five
minutes while the depleted main battery is removed and replaced
with a fully charged battery.
Caution
If the backup battery charge is Low, there is a risk
of losing data when replacing the main battery (though
Itron software applications do not lose data due to a power
loss or low battery charge). Before replacing the main
battery, see
To check the backup battery status on page
16.
The backup battery draws power from the main battery to maintain a
charge. If there is no main battery in the unit, the backup battery
temporarily provides power to maintain RAM and other vital
settings. After the main battery is installed, the backup battery begins
to draw power from the main battery again.
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