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Old 11-15-2007, 03:59 PM   #3 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,513

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.71 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 60.16 mpg (US)
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01-10-2006, 04:52 Pm

someplace to start:

Quote:
Miles = BatteryType x Weight. For each mile of range, a particular EV might need 5 pounds of lead-acid batteries, 4 pounds of nicads, 3 pounds of nimh, or 2 pounds of lithiums. Pick your battery type, and you know how many pounds of them you need for a given range. (source)
i want to go sub 20 miles, and lead-acid is least expensive, so i'm looking at roughly 100 lbs for batts. that seems low.

45 lbs: weight of my 75 amp-hour deep cycle lead acid 12v battery from my boat (kept in the basement in the winter for maintenance charging)

180 lbs of that battery type makes 48v.

however, the formula may be for a different (lighter) type of battery.
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Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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