yet another battery charging question - Page 2 - SailNet Community

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Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems
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  #11  
Old 08-18-2013
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I freq see a pair of solar panels on the safety lines, each side near the aft. One mounting method is to run the lifeline thru a piece of stainless tube. The tube hangs on the lifeline. The panel is attached to the tube so it can swing out horizontal looking like a wing. A prop rod is fabricated to hold it up. Lower and secure the panel while underway. Make sure the stored panel will not catch anything when docking
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Old 08-19-2013
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Re: yet another battery charging question

Quote:
Originally Posted by manatee View Post
How much current in the river?
My wife and I have often thought that we are sitting on a tremendous amount of energy in terms of moving water, but you seem to need about 5 knots flow to get anything useful out of a turbine, and the river is about 2-3.

The one you point to seems a bit better but still needs 4 knots, so probably no much use to us.
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Old 08-19-2013
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Re: yet another battery charging question

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Originally Posted by xort View Post
I freq see a pair of solar panels on the safety lines
Safety lines? What are those???

Seriously, we have no pulpit, no pushpit, and no lines. The only place where we could put panels without having to move them to use the boat would be on the coach roof. The flexible sort that could go over the boom and then roll up for storage might be good though.
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Old 08-19-2013
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Re: yet another battery charging question

Quote:
My wife and I have often thought that we are sitting on a tremendous amount of energy in terms of moving water, but you seem to need about 5 knots flow to get anything useful out of a turbine, and the river is about 2-3.
So cheat.

Use bicycle parts to run it up to a useful speed.
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Re: yet another battery charging question

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Originally Posted by chal View Post
Safety lines? What are those???

Seriously, we have no pulpit, no pushpit, and no lines. The only place where we could put panels without having to move them to use the boat would be on the coach roof. The flexible sort that could go over the boom and then roll up for storage might be good though.
A stainless steel / aluminum pilar from the transom with the panels mounted on a swivel works.
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Old 08-19-2013
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Re: yet another battery charging question

Quote:
Originally Posted by xort View Post
I freq see a pair of solar panels on the safety lines, each side near the aft. One mounting method is to run the lifeline thru a piece of stainless tube. The tube hangs on the lifeline. The panel is attached to the tube so it can swing out horizontal looking like a wing. A prop rod is fabricated to hold it up. Lower and secure the panel while underway. Make sure the stored panel will not catch anything when docking
Actually the stainless tube is attached firmly to the stanchion (not with the wire running through it), just under the lifeline.
Using something like one of these.
Suncor Rail Fitting
I got heavier duty ones on both upper and lower lines.
The panel mounts directly to the rail then, and can (depending on connector) pivot up and own.
I'll be mounting my twin Kyocera 140w's tomorrow (waiting on parts).
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Last edited by chucklesR; 08-19-2013 at 11:59 AM.
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