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Old 08-26-2013, 08:12 AM   #1
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Engine battery solar panel

On my 08 I have small solar panel installed at factory. I believe it is for the engine battery but do not think it is charging the batteries. where does the cable from the panel go to? The larger panel does fine on the 6v batteries.. I checked the drawings and did not see it. Mel
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Old 08-26-2013, 09:14 PM   #2
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What make and model of your RV?
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Old 08-27-2013, 07:30 AM   #3
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this is the Alpine Coach forum and mine is a Alpine Mdds
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Old 08-27-2013, 11:35 PM   #4
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Only House Batteries

Quote:
Originally Posted by Melorene View Post
On my 08 I have small solar panel installed at factory. I believe it is for the engine battery but do not think it is charging the batteries. where does the cable from the panel go to? The larger panel does fine on the 6v batteries.. I checked the drawings and did not see it. Mel
On my 2000 FDS 36' the factory installed solar charger only charges the house batteries. The solar controller/charger is in the living space, back hallway, between toilet compartment and back bedroom, on the wall next to the DC fuses and AC circuit breakers. The wiring from the controller/charger then connects in the battery compartment with the fuses hanging from the top of the battery compartment.
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Old 08-28-2013, 06:57 AM   #5
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I see the panel in the bathroom area that the house bats solar panel goes to but does the small one for the chassi go to it also?
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Old 09-04-2013, 06:26 PM   #6
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I can speak for the '05s..not too sure about '08s. The small solar panel was wired to the engine batteries with no controller via a fuse in the black fuse block in the battery compartment. The larger solar panel was wired to a controller adjacent to the 110 breaker panel by the toilet and then to the house batteries. Hope this helps!
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Old 09-05-2013, 08:42 AM   #7
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will look for the fuse and wire coming to it. Uhlmans had to run a new wire to the solar controller in the bathroom for the larger panel when I bought it as it had been cut or something and didn't work . didn't have them check the other one so it may not be connected. thanks
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Old 09-06-2013, 12:17 PM   #8
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Is there a way to test the output of the start battery solar panel? Does it still work if the chassis battery disconnect is turned off.
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Old 09-06-2013, 06:46 PM   #9
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You would have to locate the hot wire & disconnect it from the batteries, then you could test it. You could test voltage potential hot to ground, then run whatever amps it produces thru leads of a good multi-meter that can handle a 10A load thru the meter (takes a good meter for this usually w/a separate Amps hot lead socket, and it will usually say what amps it can handle.
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Old 09-06-2013, 11:39 PM   #10
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If you would look to the end of this PDF may help with the terminations to your chassis batteries.
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Old 09-13-2013, 01:53 AM   #11
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Zinom has the right of it. My 10W solar panel was installed directly to the roof, and after all the heat of one summer, it fried, and caused the batteries to boil over several times as it was trying to charge them all the time. I cut the wires and left the panel in place. The 100W panel does have a controller, and it's in the area under the bathroom sink, and it' has a nice red light when the sun is shining to let me know it's working. Have not had any issues with it. I clean the panel 2-3 times a year.
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