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  #31  
Old May 11th, 2021, 06:16
RCP Phx RCP Phx is online now
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Re: Interesting "can of worms"

I do have all the equivalent, just different brands. This s my 3rd trailer with solar installed, I love these set-ups because when your all done the need to run the generator basically goes away!
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  #32  
Old May 11th, 2021, 06:34
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Re: Interesting "can of worms"

I will add the only downside I have is the RV canopy which means I still have to plug it in to "shore" power to keep the battery maintained year round.
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  #33  
Old May 11th, 2021, 07:24
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Re: Interesting "can of worms"

Could you install a strategically placed skylight or two to give it enough light to maintain a charge?
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  #34  
Old May 11th, 2021, 08:22
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Re: Interesting "can of worms"

I could but it kind of defeats the purpose of a $2000 canopy protecting a $30,000 trailer from AZ's 120* temps and UV! I bought that trailer for my sister to live in for over a year.
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  #35  
Old May 11th, 2021, 09:34
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Re: Interesting "can of worms"

What about a quick-disconnect on the feed line from the solar panel, and set up a second one outside the awning you could plug into instead of grid mains - free "shore power"!
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  #36  
Old May 11th, 2021, 11:09
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Re: Interesting "can of worms"

I've thought about that but solar panels are not cheap. I already have "Battery Tender" quick dis-connects on all my rigs but that would mean running a ext cord out there and I already have a permanent 30A RV outlet there. The other thing I need to check/consider is the "electrical draw" when everything is shut-down in the trailer but the battery charger.
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  #37  
Old May 11th, 2021, 18:56
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Re: Interesting "can of worms"

I wasn't suggesting duct taping a piece of Plexiglas up there. This one filters 95% of UV, pretty sure it would allow enough light to keep the batteries topped off.

https://www.homedepot.com/p/VELUX-22...0005/202038781
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  #38  
Old May 12th, 2021, 04:04
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Re: Interesting "can of worms"

Quote:
Originally Posted by lesslimited View Post
I wasn't suggesting duct taping a piece of Plexiglas up there. This one filters 95% of UV, pretty sure it would allow enough light to keep the batteries topped off.

https://www.homedepot.com/p/VELUX-22...0005/202038781
Well that's totally counter-productive.
1- the canopy protects the "trailer" and most have a EDPM roof
2- there is no "structure" for mounting a skylight
3- solar panels do not work well under uv protected glass
4- I can purchase a new separate 200w panel for that price (I can get a hi-tech standalone dedicated solar charger for about 1/4th the price)
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  #39  
Old May 12th, 2021, 09:23
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Re: Interesting "can of worms"

Quote:
Originally Posted by RCP Phx View Post
I've thought about that but solar panels are not cheap. I already have "Battery Tender" quick dis-connects on all my rigs but that would mean running a ext cord out there and I already have a permanent 30A RV outlet there. The other thing I need to check/consider is the "electrical draw" when everything is shut-down in the trailer but the battery charger.
Makes sense. I'd guess the draw when the trailer's doing nothing but floating the battery bank is probably minimal, but you'll find out when you measure it.
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  #40  
Old May 13th, 2021, 19:36
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Re: Interesting "can of worms"

I got all the wiring done (bad pics but).

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  #41  
Old May 13th, 2021, 19:54
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Re: Interesting "can of worms"

This is what you should be seeing.....
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  #42  
Old May 14th, 2021, 12:11
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Re: Interesting "can of worms"

Here's what I tried to show last night, this is with the "shore" power dis-connected and the solar panel not plugged in, but all my normal DC loads still connected. Going to monitor all the different loads and then see if my solar panel will produce enough power with indirect light(this trailer is about 1' less in height than the toy-hauler) so we'll see.


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  #43  
Old Yesterday, 08:39
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Re: Interesting "can of worms"

So I've got 48hrs of data logged now and things look very promising. With no shore power connected these are DC current numbers.

Trailer dis-connect in the "off" position - no measurable current draw

Trailer dis-connect in the "on" position(nothing running but everything energized) - 240mA

Trailer dis-connect "on" and the inverter "on" for the TV - 450mA

I'll mount the panel and plug it in today and see where were at with it being under the canopy to see if it's putting anything out!
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  #44  
Old Yesterday, 18:53
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Re: Interesting "can of worms"

That was a total failure, under the canopy I only gained .05 volts all day. I just switched over to shore power and it's pulling 1.8amps right now, we'll see how it drops in the morning after the battery is back up to full charge.
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