Solar Panel - what size for 13' Casita? - Fiberglass RV
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Old 07-02-2008, 06:14 PM   #1
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Julianne's Avatar
Trailer: 1997 Casita Patriot
Posts: 16

We have just purchased a 1997 Casita Patriot. It is wired for solar but the previous owner retained his panels. I read the post by 'Jim' on this site about solar and have some question about the appropriate size panel we'll need to keep our battery charged.

Jim suggests a 75 amp. One of the outdoor shops here in town is suggesting a 5 amp.

What are you using or do you suggest?


Bend, OR

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Old 07-02-2008, 07:23 PM   #2
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Trailer: Two 13 ft Bolers and one 17 ft Boler
Posts: 325
Hi there,

Check out this link for information

You will probably need to go with the 75 amp or higher. I would stay away from the 5 amp.
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Old 07-02-2008, 08:16 PM   #3
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Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
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Ahh, I think you're confusing Amps and Watts.
Actually somewhere between 75 Watts and 5 Watts is a pretty good choice for most of us. Most solar panels are rated in Watts.

If you check the left you'll see under Tutorials, Solar. That's a good place to start. If you follow the calculations there you'll get an idea of what you'll need.

You might not even need a solar panel if don't stay in one place for more than 3 or 4 days. Your tow vehicle should recharge the battery between camping locations.

A 75 Amp solar panel would be 75 Amps x 17.5 Volts = 1,312.5 Watts. or 1.3 Kilowatt.
Byron & Anne enjoying the everyday Saturday thing.
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