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General Discussion / Re: House Batteries not charging while driving

« on: August 10, 2021, 01:47:38 pm »

Thanks very much for the encouragement...   I changed out the 40A  CB and that solved my problem!

Thanks, everyone!

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General Discussion / Re: House Batteries not charging while driving

« on: August 03, 2021, 12:35:58 pm »

Wow...  thanks for the class, Mike!  It makes perfect sense..

Let's hope the new CB does the trick!

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General Discussion / Re: House Batteries not charging while driving

« on: August 03, 2021, 11:07:00 am »

Mike...  I was just re-reading your post.

It sounds as if I should only see voltage on the other side of the solenoid when the key is on and the connection is made.

As far as I can remember, I have power running through the solenoid all the time...  12.something with the key off and 14 something with the engine running.

Having battery voltage on both sides of the solenoid at rest is not correct, right?

I'll check it again tonight, but that is what I remember.

K.

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General Discussion / Re: House Batteries not charging while driving

« on: August 03, 2021, 10:31:01 am »

Thanks Mike...  your explanation was what I was after.

As you can see, the CB is pretty sketchy looking.

The new one should be here tomorrow.  I'll pop it in and report back!

Thanks again...

Kip

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General Discussion / Re: House Batteries not charging while driving

« on: August 03, 2021, 09:17:51 am »

It's good to know that 40A breaker is the weak link.  The new one should be here tomorrow.

Thanks again, Don.

K.

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General Discussion / Re: House Batteries not charging while driving

« on: August 03, 2021, 09:15:57 am »

Hey Don... thanks for the diagram.

It is interesting that the picture does not show the 12VDC going from the alternator to the batteries. 

Would the power run from the alternator,  through the inverter to get to them?   That doesn't make sense.

Is the charging off the alternator leg missing from this diagram?

Thanks!  Kip

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General Discussion / Re: 2008 phoenix cruiser 2551 transfer switch

« on: August 03, 2021, 08:24:06 am »

Second what Ron said...  you overloaded the generator and popped it's 30A circuit breaker.  Just reset the breaker and you should be fine.  It is located about mid way fore/aft of the generator, mounted in a small panel that faces to the rear.  You may not see it with a quick glance. It's down low on the generator. It is smaller than a household breaker, but works the same way.

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General Discussion / House Batteries not charging while driving

« on: August 03, 2021, 08:17:52 am »

Hey guys...  This is my latest project.  I suspect this has been an issue for a while because the previous (original) owner went through three sets of house batteries in 4 years.

They charge fine off shore power, generator and the solar system I installed.  I leave the battery disconnect switch on full time.

Someone suggested to check out the solenoid and circuit breaker on the fender under the coolant tank. They both seem to be ok... battery voltage is on both sides of the solenoid that jumps to 14+ VDC with the engine running on both sides.  The CB seems to be ok, but it is very rusted already, so I have a new one coming and will replace it.

Does anyone have a understanding of how this part of the charging system works and can explain it or sketch a quick diagram?  I know the house batteries are supposed to get charged directly off the alternator with the engine running, but I don't know how that happens or what/where to check.  I want to get this solved. Thanks a lot!