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Old 04-18-2011, 10:42 PM   #1 (permalink)
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just saw this on ebay

20W monocrystal Solar Panel,Solar charger ,12V battery | eBay

i'm thinking to get a pair

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Old 04-19-2011, 01:35 AM   #2 (permalink)
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Looks cool! Thanks for posting it. But it is 25" long, 11" wide, and almost an even inch tall. They would be a bit of a aero drag. Two would be $200 before shipping and then there would be other hardware to buy. But, of course, I'm thinking I want one or two as well. I wonder if they could be mounted on a trunk (where there is already plenty of draggy dead air). I wonder if I could keep people from stealing them?
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



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Old 04-19-2011, 07:09 AM   #3 (permalink)
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20W (or 40 if you buy two) is just about right to keep the battery topped off if you don't drive for a while, but you can't really run anything on that sort of power.. even a modest radio will consume more power than that I would think..
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Old 04-19-2011, 09:21 AM   #4 (permalink)
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Quote:
Originally Posted by gabi View Post
What do you plan on using them for?
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Old 04-19-2011, 09:25 AM   #5 (permalink)
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Here is a list of how much power accessories draw, post a while ago (and for a Metro):
http://ecomodder.com/forum/showthrea...olts-8908.html

What if the alternator were on a switch, as some have suggested on this forum? Under sunny conditions with a car that draws less power in general and none for accessories, put the alternator on a clutch and let the panel maintain. Let the battery recharge while the car sits at work all day. Use the alternator if necessary. Maybe?
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



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Old 04-19-2011, 11:08 AM   #6 (permalink)
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Quote:
Originally Posted by California98Civic View Post
Looks cool! Thanks for posting it. But it is 25" long, 11" wide, and almost an even inch tall. They would be a bit of a aero drag. Two would be $200 before shipping and then there would be other hardware to buy. But, of course, I'm thinking I want one or two as well. I wonder if they could be mounted on a trunk (where there is already plenty of draggy dead air). I wonder if I could keep people from stealing them?
its actualy very thin,

2.5 milimeters
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Old 04-19-2011, 02:04 PM   #7 (permalink)
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try these, cheaper by a whole bunch

40W 2PCS 20W mono solar panels | 2X20 Watt Home Solar Panel | 12V Solar Panels

$180 with shipping. i have a pair of the 15W panels that i'll be putting on my Jeep's cargo box this summer
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Old 04-19-2011, 03:27 PM   #8 (permalink)
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Even if it's not enough to power the whole car, it should reduce the drag on the alternator pulley right? Getting supplemental charging power should help out some...
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Old 04-20-2011, 01:24 AM   #9 (permalink)
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Quote:
Originally Posted by gabi View Post
its actualy very thin, 2.5 milimeters
Oh! I counted it as centimeters by mistake. 2.5mm is very thin alright.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



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Old 05-01-2011, 12:32 AM   #10 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 2,373
Thanked 2,172 Times in 1,469 Posts
Gabi, did you end up buying a pair?

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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



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