Furuno Essential Guide for CR2450-F2ST2 Battery Replacement in Boating Equipment Maintenance

4. MAINTENANCE, TROUBLESHOOTING

4.6Replacement of Battery

The processor unit has a battery which stores data when the power is turned off. When the battery voltage is low, the message “BATTERY!” appears on the display. Have a qualified technician replace the battery, following the procedure below. The life of the battery is 3-5 years.

Battery Location	Type	Code No.
Processor Unit	CR2450-F2ST2	000-133-495

1.Press the [MENU] key to open the menu.

2.Choose SYS SETUP and then press the [ENT] key.

3.Choose “EXCHANGE BATTERY?” and then press the [ENT] key.

EXCHANGE BATT?

ARE YOU SURE?

YES

NO

Prompt for exchanging battery

4.Press ◄ to choose YES and then press the [ENT] key. The following message appears.

READY FOR

BATTERY CHANGE.

TURN OFF THE

UNIT.

Prompt for turning off the power

5.At this time the contents of the RAM are temporarily moved to the flash memory. Turn off the power.

6.Have a qualified technician replace the battery.

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