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Garmin 2006C False Battery Alarms?

Old 06-06-2009, 05:48 PM
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Default Garmin 2006C False Battery Alarms?

I have been getting advice on the boating forum regarding low battery alarms I am getting frommy Garmin 20006C. I ran multiple battery tests and had them tested my West Marine. They test as strong batteries. Is the Garmin low voltage alarm relaible (set at 11.2 volts)? Is it possible that corrison on the Garmin wiring or fuses is causing false alarms (although the unit has been functioning fine)? The corrison idea poped into my head on the way home today after West Marine tested all 4 batteries and said they were in very strong condition. Thanks in advance.
Old 06-06-2009, 05:51 PM
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when does it alarm? on start up of motors?
Old 06-06-2009, 07:43 PM
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Yes, but lately while I'm just trolling along with just the radio and Garmin running. Last time out it was a constant thing.... even when I switched the batteries over to the alternate setting (battery 1 to 2) and then with both banks set to ALL. I'll be ok for an hour or so and then it starts.
Old 06-06-2009, 08:00 PM
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Something is not adding up. 11.2 volts indicates a dead battery. If the engine is running you should be seeing approx 14.5 volts out of the rectifier/regulator. Put a good voltmeter on the batteries while seeing what the Garmin indicates. If you see adequate voltage on the batteries and low voltage on the Garmin you have a wiring or connection issue.

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