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Okay, this might just sound a bit far fetched... But I'm getting 150 watt hours/mile with a 1994 Geo Metro running on lead acid batteries... Here are my specs:
Batteries: 12 regular (My beginners ignorance, I failed to get deep cycle) car batteries, RC: 75.
Voltage: 144 nominal.
Motor: 12 inch Baker forklift motor.
Controller: P&S 500 Amp Cougar with higher power IXYS MOSFETs and higher voltage diodes, blew up the originals.
Weight: 2,160 pounds.
Top Speed: 65 MPH in fifth gear.
Peak and constant amperage at 60 MPH: 125 amps max, 50 amps at steady state 60.
Range: somewhere around 15 miles... Pathetic due to the high weight of the LA batts.
Future plans: convert to lithium batteries, I'm getting somewhere around 15 amp hours with the setup I have.
My car could, in theory, have the range of 120 miles with 100 amp hours at 144 volts (45 cells). There is the possibility that my ammeter is slightly miscalabrated, probably not by much though. That's 7000 watts, or 9.5 horsepower, a car should only need about 5 on flat ground with everything running smoothly.
-Don Gibson
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