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Old 02-22-2014, 08:27 AM   #43
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Quote:
Originally Posted by ladagobago View Post
one picture = 1000 words. you only have one wire in the wrong place

I move your c8 yellow wire to the neg terminals
Way back at the beginning of this thread the same thing was stated.
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Old 02-22-2014, 08:28 AM   #44
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Look at my battery numbers.
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Old 02-22-2014, 08:41 AM   #45
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Quote:
Originally Posted by mgscott4 View Post
Look at my battery numbers.
Note, the picture in post #34 has been photoshopped to move the wire to the correct place. The original picture has C8 going to B1 and B3 (-), which are in parallel with B2 and B4 (+), which is not per your diagram, so there is a wiring problem.

After the wiring is fixed, then it is time to start looking at voltages.
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Old 02-22-2014, 08:42 AM   #46
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I do not have time to draw this write now to make it easier to understand but using MoeBelly "now" drawing (Does this wiring look right?),



One battery circuit is formed B1/B3 (in parallel) which are in series with B2. The output of that set is on C5.

A second battery circuit is formed B1/B3 (in parallel) which also are in series with B4. The output of that set is on C3.

It is almost impossible to predict how your system will react with this sort of setup.

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Old 02-22-2014, 08:44 AM   #47
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I stand corrected, The wiring is wrong, C8 should be connected to B2 Neg and B4 Neg. I used the photoshop diagram on post # 34.
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Old 02-22-2014, 08:46 AM   #48
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Quote:
Read my diagram again, C8 is connected to B2 minus and B4 minus
And that is not what his picture shows which is C8 is connected to B1 minus and B3 minus
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Old 02-22-2014, 09:03 AM   #49
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Now that most agree C8 was connected to the wrong battery post. The no charge
issue may still be there until the connections of C1 & C2 and the fuse are cleaned
and the fuse checked to be sure it is ok.
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Old 02-22-2014, 09:20 AM   #50
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Yes, as mentioned remove C8 and connect to B2 and B4 negative. This will give you parallel feeds of 12V.
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Old 02-22-2014, 04:42 PM   #51
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the op likes pictues

Quote:
Originally Posted by wb7auk View Post
Way back at the beginning of this thread the same thing was stated.
Your right on both counts. you recognized it too but the OP seemed to like pictures so I gave him a redrawn picture to follow. we all did our part.

My guess is that one set of wires go to the alternator and the other to the charger. the batteries to the left which were wired wrong might be the coach feed to the charger too. don't really know.
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Old 02-22-2014, 05:00 PM   #52
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C2 is the feed from the charger that is fused to C1 which also has another cable going towards the chassis batteries most likely a relay to allow charging from the alt.
C5 & C3 are grounds maybe one to chassis the other to the neg of the charger.
C4 is the 12 volt feed to the house supply panel.
Why so many cables were used looks like someone that did not know how to wire it.
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Old 02-22-2014, 07:01 PM   #53
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Well, that seemed to do the trick! The RV place that installed the batteries back in MA had them wired wrong. Frustrating, considering how much they charged to instll the batteries in the first place, and maddening for all the trouble it caused us , but at least we have reliable power. Thank you all for taking the time to look at my photo and figure it out. So nice to see the panel say 13.3v instead of 8.2v.
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Old 02-22-2014, 07:11 PM   #54
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Originally Posted by 4tfamily View Post
Well, that seemed to do the trick! The RV place that installed the batteries back in MA had them wired wrong. Frustrating, considering how much they charged to instll the batteries in the first place, and maddening for all the trouble it caused us , but at least we have reliable power. Thank you all for taking the time to look at my photo and figure it out. So nice to see the panel say 13.3v instead of 8.2v.
Glad to see all worked out OK, I suggest you have a good case for a total reimbursement from the place that installed your batteries for all out of pocket expenses at least.

Good luck and happy trails
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Old 02-22-2014, 07:53 PM   #55
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Thank you for the update
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Old 02-22-2014, 07:54 PM   #56
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I read this post and appreciated the fact that everyone worked to solve the problem and everyone was so nice to the other posters. This is a great site.
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