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Old 09-26-2011, 02:09 PM   #41
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hi Troy, just saw your post and wondered how long is your trailer and how many batteries do you need for 540 watts?? We have been lurking on this thread and have a little 18 foot Caravel and can't get much on top and am worried about portable units. Bob Morgan
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Old 09-27-2011, 07:40 AM   #42
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I have found our 85 watt Kyocera panel with a Blue Sky MPPT controller/monitor sufficient for continuous (water and sewerage are our limiting factors) off-grid camping in almost any situation. We've seen many freezing nights and overcast rainy days in the six months, 8100 miles and 74 nights that we've used our 2011 FC23FB. We use the furnace, stereo/DVD player, laptop and water pump as desired. LED lighting helps a great deal. I'll add another 85 watt panel (in place of the unused TV antenna) if/when our consumption exceeds the solar capabilities. We have the original Interstate flooded gp 24 batteries which I'll change to AGM's when these expire, simply for the low maintenance. AGM's certainly have advantages - I have a large bank of Lifeline AGMs on my sailboat, but are actually not as efficient as well-maintained flooded batteries. You can do just fine with flooded batteries on solar.

Go solar, and enjoy the freedom and silence of boondocking.
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Old 09-27-2011, 07:04 PM   #43
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Hi bob our trailer is 23 ft, the panels are approximately 26x48 x 4 panels, mounted flat. As for batteries I have six 305 AH AGMs, we went AGM as the batteries are mounted inside the trailer. The bank is slightly large for the array, but we have seen no issues the year the batteries have been installed.

My best advice is look at how off grid solar homes build systems and follow that route, they tend to be superior to RV targeted systems.

That is just my experience, I live off grid on solar, in a large home and just followed that type of plan for the trailer and it has worked well.
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Old 09-28-2011, 03:53 AM   #44
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Quote:
Originally Posted by tr0y
Hi bob our trailer is 23 ft, the panels are approximately 26x48 x 4 panels, mounted flat. As for batteries I have six 305 AH AGMs, we went AGM as the batteries are mounted inside the trailer. The bank is slightly large for the array, but we have seen no issues the year the batteries have been installed.

My best advice is look at how off grid solar homes build systems and follow that route, they tend to be superior to RV targeted systems.

That is just my experience, I live off grid on solar, in a large home and just followed that type of plan for the trailer and it has worked well.
Tr0y, are you running an AC off of your battery bank? If so, please tell us all the dirty details. It seems you could probably get several hours of AC out of that battery bank without exceeding recommended depth of discharge ... especially if you used a smaller AC like a 9200. Thanks in advance for any insight.
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Old 09-28-2011, 09:11 AM   #45
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"I have six 305 AH AGMs, we went AGM as the batteries are mounted inside the trailer."


WOW....thats like taking four normal sized mother-in-laws along just for the ride.

Bob
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Old 10-09-2011, 07:15 PM   #46
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"I have six 305 AH AGMs, we went AGM as the batteries are mounted inside the trailer."


WOW....thats like taking four normal sized mother-in-laws along just for the ride.

Bob
Bob,

Hmmm. I can tell you in this case 1 M-I-L = 2.1 AGM.
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