Battery isolator
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=42548
Printed Date: November-15-2024 at 9:31pm
Topic: Battery isolator
Posted By: gt40KS
Subject: Battery isolator
Date Posted: March-30-2018 at 4:35pm
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Wondering if anyone has an idea how the batteries are charged on our boats? Sounds like a stupid question, I know. But drawing on memory, I remember there was no specific charging cable going back to the battery from the alternator. Researching with the PCM engine manual, the diagram shows the alt charge cable leading back to the 8 pin connector, then nothing after that. It appears that the charge back-feeds through the main cable? Or is it that one of the PO's has the wiring a little screwy?? The reason I ask is I'd like to be able to simultaneously charge the deep cycle while running on the the starting battery and the battery selector switch is only set to the main (starting) battery. But the isolators require a specific charging cable from the alternator, which apparently I don't have. ------------- JCCI 1995 Ski Nautique GT40 |
Replies:
Posted By: KENO
Date Posted: March-30-2018 at 5:23pm
The answer is in this diagram  Alternator to main breaker to starter solenoid to battery  |
Posted By: gt40KS
Date Posted: March-30-2018 at 8:18pm
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I was looking at the same diagram - that's what I thought I saw. Last one I installed was on my old boat - GM 496, so maybe it was different. But it had an isolator already and the alternator cable went directly to that and then the batteries. When I added a 3rd battery for the sound system I had to get a new one that had 3 outputs. With this Ford system, I'll just have to run a new dedicated cable from the alt to the new isolator. ------------- JCCI 1995 Ski Nautique GT40 |