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Garmin Unit Shuts Down

Old 10-17-2008, 12:50 PM
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Default Garmin Unit Shuts Down

I have an annoying problem. Everytime I start up my engine (175 Johnson), the Garmin 188C shuts down. I have two batteries on my boat (2003 Aquasport CC) and alternate their use every other trip out. The radio and the Garmin Unit are wired with an inline fuse to a male connector on the underside of the switch panel. How can I fix it???? Your help will be greatly appreciated.
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Old 10-17-2008, 12:59 PM
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Default Re: Garmin Unit Shuts Down

put the motor on one batt and everything else on the other - connect the two batts via a combiner (acr)

Most likely the batts need replacing too....

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Old 10-17-2008, 01:14 PM
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Default Re: Garmin Unit Shuts Down

I had the same problem with a 178c, it was the battery. Mine were just low and charging them was fine, but you might need to replace them. I also do the same as you and alternate each battery every trip.
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Old 10-17-2008, 01:14 PM
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Default Re: Garmin Unit Shuts Down

Glen E, Thanks for the reply. Can you be more specific about a combiner (acr) ?
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Old 10-17-2008, 01:35 PM
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Default Re: Garmin Unit Shuts Down

Glen E, I Googled "combiner (acr)" and found information that you had contributed from an earlier post. I will consider the combiner. Thanks again, Pietro
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Old 10-19-2008, 11:42 AM
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Default Re: Garmin Unit Shuts Down

It's pretty typical if the electronic's get their power from the Start battery. The demand of the starter is high amperage and the drop when the starter is engaged spikes the electronics and they shut down.
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