Thread: How to Bypass Alternator with a Switch DIY
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Old 03-14-2012, 09:48 PM   #30 (permalink)
California98Civic
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Join Date: Mar 2011
Location: Coastal Southern California
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Black and Green - '98 Honda Civic DX Coupe
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90 day: 66.42 mpg (US)

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Quote:
Originally Posted by bheadrick View Post
so, what would be the minimum power rating you'd need for something like this? I see Mr Previa's panel is 70W and fully charged his battery in a matter of 4hrs on a cloudy day.
I've seen a 15W panel designed for charging a 12v battery that looks like it would fit nicely on top of a coupe trunk lid
I would expect 15 watts to be insufficient. I'm planning for about 100 watts on the roof, using 2.5mm thick "flexible" monocrystaline.
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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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