Hobie Cat Forums

It is currently Fri Oct 31, 2014 11:33 am

All times are UTC - 8 hours [ DST ]




Post new topic Reply to topic  [ 11 posts ] 
Author Message
 Post subject: Solar Panels
PostPosted: Thu Mar 04, 2010 10:30 pm 
Offline
Site Rank - Admiral

Joined: Sun Oct 11, 2009 5:57 am
Posts: 270
Location: Perth, Australia
was just reading this article http://www.gizmag.com/joos-orange-personal-solar-charger-affordable-rugged-and-extremely-energy-efficient/14403/ and was wondering do any of you guys have panels to charge your 12v battery when your out and about?

_________________
Image


Top
 Profile  
 
 Post subject: Re: Solar Panels
PostPosted: Tue May 11, 2010 3:46 pm 
Offline
Site Rank - Captain

Joined: Tue Jan 05, 2010 9:46 am
Posts: 46
Location: Naples, FL
I have been pondering this question myself and a handy friend has solved the issue for me.
He is building me a wind powered generator that will charge 4 12 volt AGM batteries.
He is using all off the shelf materials and even says the cost will be under $100.
I will post pics as soon as I take delivery.


Top
 Profile  
 
 Post subject: Re: Solar Panels
PostPosted: Tue May 11, 2010 4:37 pm 
Offline
Site Rank - Old Salt

Joined: Wed Nov 26, 2008 4:36 am
Posts: 840
Location: Gippsland Lakes Victoria Australia
I'll be interested in seeing this

_________________
Mickey
2011 AI Golden Papaya



Top
 Profile  
 
 Post subject: Re: Solar Panels
PostPosted: Fri May 14, 2010 12:43 am 
Offline
Site Rank - Admiral

Joined: Tue Mar 16, 2010 9:12 pm
Posts: 195
Location: Hilo, Hawaii
Picked up a new 2.9amp 12v battery for my fish finder at the local battery specialty shop (Battery Bill). While I was there, I was checking their selection of solar panels that could be used to maintain charge while at sea. For a 2.9amp 12v battery, a 6 watt solar panel was recommended by the shop's expert -(Battery Bill)


Top
 Profile  
 
 Post subject: Re: Solar Panels
PostPosted: Fri May 14, 2010 8:11 am 
Offline
Site Rank - Admiral

Joined: Sun Oct 11, 2009 5:57 am
Posts: 270
Location: Perth, Australia
find out what amperage your Fish finder draws then its easy to see if he is full of crap... most are under 250mA

Watts = Volts x Current

so 12 X 0.25 = 3 Watts. So 6 watt may be a little bit of overkill.

_________________
Image


Top
 Profile  
 
 Post subject: Re: Solar Panels
PostPosted: Wed May 19, 2010 1:31 pm 
Offline
Site Rank - Captain

Joined: Tue Aug 25, 2009 4:07 am
Posts: 91
Location: Byron Bay, NSW, Australia
6W should be about right. Remember that a solarpannel seldom delivers full power. ( only under ideal conditions ). That you only get when they are directed to the sun. Laying flat with salt spray all over it will defenately decrease the output..


Top
 Profile  
 
 Post subject: Re: Solar Panels
PostPosted: Sat May 22, 2010 7:32 am 
Offline
Site Rank - Admiral

Joined: Sun Oct 11, 2009 5:57 am
Posts: 270
Location: Perth, Australia
yeh but he has a 2.9amphour battery so the solar panel should just be topping up the battery.

_________________
Image


Top
 Profile  
 
 Post subject: Re: Solar Panels
PostPosted: Sat May 22, 2010 6:17 pm 
Offline
Site Rank - Old Salt

Joined: Mon May 04, 2009 5:02 am
Posts: 811
Location: Sydney - Parramatta
I'd go the bigger capacity solar panel. A lot of the time the specs on the panels are very optamistic and under perfect conditions. Add some cloud and salt spray and you'll get less power out.

These seem to pretty popular for kayaks-
Image

Find more info here-
http://mattbezzina.blogspot.com/2008/10/solar-powered-battery-charger-for-bilge.html

and here-
http://www.roguepaddler.com/battpak.htm

_________________
Image


Top
 Profile  
 
 Post subject: Re: Solar Panels
PostPosted: Mon May 24, 2010 12:53 am 
Offline
Site Rank - Admiral

Joined: Sun Oct 11, 2009 5:57 am
Posts: 270
Location: Perth, Australia
They look like nice panels, in terms of going the higher wattage panels yep your always better to get them but the price of panels increases exponentially with wattage.

_________________
Image


Top
 Profile  
 
 Post subject: Re: Solar Panels
PostPosted: Mon May 24, 2010 2:26 am 
Offline
Site Rank - Captain

Joined: Fri Aug 21, 2009 4:55 am
Posts: 60
Location: Shetland, UK
Probably a dumb idea but is there any way you could incorporate a solar panel into a sail sheet or are they to ridgid?

_________________
Quote:
We dont really grow up at all as we get older - we just get slightly better at behaving in public

Quote:
Got ants in my pants and I need to dance


Top
 Profile  
 
 Post subject: Re: Solar Panels
PostPosted: Mon May 24, 2010 8:57 am 
Offline
Site Rank - Admiral

Joined: Sun Oct 11, 2009 5:57 am
Posts: 270
Location: Perth, Australia
Twerto wrote:
Probably a dumb idea but is there any way you could incorporate a solar panel into a sail sheet or are they to ridgid?



Soon.

_________________
Image


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 11 posts ] 

All times are UTC - 8 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group