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Author Topic:   Clicking Sound
FRSam posted 10-24-2006 08:51 AM ET (US)   Profile for FRSam   Send Email to FRSam  
I recently had another battery installed in my new Montauk 150 as a back up. A Perko switch was also installed so I was able to choose from which battery I wanted to draw power.

Recently while out I heard a somewhat loud clicking sound coming from the center console compartment where the batteries are located. The clicking occurred at various [engine speeds] while the boat was under way but didn't seem to effect the operation of the boat in any way. I never noticed any clicking prior to the installation of the second battery and the Perko switch.

Is this something which I should just expect? Is it something which I should have looked at?

I love the boat and have logged over 190 hours this first season.

Thanks for any input,


jimh posted 10-24-2006 08:57 AM ET (US)     Profile for jimh  Send Email to jimh     
If the clicking sound is being produced by the flow of electrical current, you probably want to find the source.
rtk posted 10-24-2006 09:28 AM ET (US)     Profile for rtk  Send Email to rtk     
This past spring I installed an hour meter for my kicker engine, located on the dash. When I first ran the kicker after the installation, I kept hearing this click, click. It was driving me nuts!

Then the lightbulb went on- it was the hour meter I installed. I think it clicks every 1/10 of an hour. It was very annoying at first, but now I hardly notice it.

Did you install an hour meter or an additional 12 volt accessory also?


FRSam posted 10-24-2006 10:01 AM ET (US)     Profile for FRSam  Send Email to FRSam     

Yes I did have an hour meter installed when I first got the boat. I never heard any clicking until I had the second battery and switch installed. When the boat is under way I always run it on the cranking battery. I use the second agm battery once I'm anchored to power the sonar / gps unit. I do plan on using the second battery to run an electric trolling motor once I have a mounting bracket installed on the transom - but that's another story.

The clicking sound only occurs while the boat is underway.


jimh posted 10-24-2006 01:59 PM ET (US)     Profile for jimh  Send Email to jimh     
You'd have to have the combination of the world's loudest hour meter and world's quietest outboard motor to hear the tick of the hour meter while underway.
ratherwhalering posted 10-24-2006 03:31 PM ET (US)     Profile for ratherwhalering  Send Email to ratherwhalering     
Did you have a Voltage Sensitive Relay (VSR) installed? If so, then it may be the problem. If your starting battery is not holding an acceptable charge, or you are using a deep cycle battery as your starting battery, then this is the likely scenareo:

The "start" battery is only capable of holding a temporary charge above the VSR charging threshold. Once the engine is started and running, the VSR charges the start battery to a pre-determinted charge threshold then "clicks" over and starts charging the Absorbed Glass Mats (House) battery. The "start" battery charge then drops below the VSR charge threshold, and the VSR "clicks" over to the "Start" battery and charges it until it's again above the charge threshold. After a few seconds, the "start" battery exceeds the VSR charge threshold, and the VSR "clicks" over and starts charging the "house" battery again. The cycle repeats itself until it drives you nuts.

The solution is to either lower the charge threshold of the VSR (check with manufacturer) or replace the start battery with a battery that can hold a charge that exceeds the VSR charge threshold.

FRSam posted 10-24-2006 10:30 PM ET (US)     Profile for FRSam  Send Email to FRSam     
Thank you ratherwhalering. No I'm not using a deep cycle battery as my starting battery. The deep cycle is set up as my house battery. I'm not sure if this set up has a Voltage Sensitive Relay. When I had the second battery installed with the Perko switch I was under the impression that when I ran it on "one" only the starting battery would be charged and under use. If I ran it on "both" then both batteries would be under use and charged alternatly. Maybe this is where the VSR comes into play - I don't know?

If my understanding is correct when running on "one" there would be no switching back and forth between batteries. And if this is the case the clicking sound I'm hearing couldn't be resulting from the VSR because it occurs while running on position "one" which again doesn't allow it to switch back and forth between batteries?

Yes, it is driving me NUTS. I'll check into the the VSR.



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