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Old 04-08-2014, 08:40 PM   #1
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House Battery Hookup

I own a 2004 National Dolphin RV with 4 house batteries in the hold and 1 Chassis Battery under the step. Over the winter the 4 house batteries froze so it was necessary they be replaced. Prior to removing the old batteries I made a diagram of the hookup and I took pictures so I would know how to reconnect the new batteries. Well, everything is connected exactly to the diagram and confirmed with the pictures I took.

The Problem: when I connect the ground cable it starts frying the 1 chassis battery.
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Old 04-09-2014, 01:41 AM   #2
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Post a detailed pics of your house bank and connections. The forum members will gladly study the pics and try to help you.
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Old 04-09-2014, 09:33 AM   #3
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Quote:
Originally Posted by dlevell View Post
I own a 2004 National Dolphin RV with 4 house batteries in the hold and 1 Chassis Battery under the step. Over the winter the 4 house batteries froze so it was necessary they be replaced. Prior to removing the old batteries I made a diagram of the hookup and I took pictures so I would know how to reconnect the new batteries. Well, everything is connected exactly to the diagram and confirmed with the pictures I took.

The Problem: when I connect the ground cable it starts frying the 1 chassis battery.
obviously you have polarities backwards somewhere. If you are frying your chassis battery when you hook up the ground it sounds like you may have hooked all 4 batteries in series rather than series-parallel. This would give you 24 volts if you did that. The previous poster was correct send us the picture. There is a post that was done on this subject this week. I am sorry I do not remember the thread or the poster. He had one of the best drawings for hooking up house batteries that I have seen you might look for that and check your batteries against his. In the interim while you are looking for that or posting pictures check the following on your house batteries. you should have two different batteries that has one connection on the negative - terminal and two connections on that batteries positive + terminal. You should also have two different batteries that have one connection on the positive + terminal and two connections on the - terminal. That is one way to make sure you have them hooked up right. On one of the batteries that has two connections on the positive terminal you will have the positive cable going to the coach so that connection will have three wires on it. On one of the batteries that has two connection on the negative terminal you will hook your negative connection (ground) terminal to it. That will have three wires on that connection. Hopefully that will help you to check.
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