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Old 07-28-2008, 02:32 PM   #8 (permalink)
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Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 53.56 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
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Originally Posted by cfg83 View Post

a - I don't know if you need special "in between" electronics to keep the battery from being damaged. Maybe you do, maybe you don't, maybe it depends on the panel?!?!?!
You'd need a charge controller - a little circuit designed to dump power once the battery comes up to a pre-set voltage. Otherwise, depending on the strength of the panel, you could overcharge the battery.

But the most damage will come from simply discharging deeply. Batteries don't like that, and only have so many cycles in them.

I'm in agreement with metromizer: a fun energy efficiency project, but not something to undertake if the goal is saving money.
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: Oops, I did it again! Bought another cheap, 3-cylinder Mirage. Mods in progress...
Ecodriving test: Manual vs. automatic transmission MPG showdown

has launched a forum for the efficient new Mitsubishi Mirage - fuel efficiency info for Geo Metro owners - electric car conversion on a beer budget
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