Quote:
Originally Posted by tcaud
Battery Junction is selling 3.7v Li-on batteries with 0.7ah each for about $5 apiece.
To get to Tesla level you'd need 100 of those, which would produce 70ah at 370 volts for 26khw (about 80 miles).
Of course the super/composite battery is only guaranteed for 500 charges, but it is also very, very light. You'd save tremendous mpg on account of the lightness, or so I'd think. You'd be looking at $500 for the base cost (although you'd have benefit of volume so maybe a 30% discount), then the wiring/management and cooling (which I figure could be done with coolant and insulation).
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Jockot is correct.
3.7v per cell * 100 cells = 370v nominal
370v * 0.7Ah = 259Wh = 0.259kWh
Your math was off a little, the 0.7Ah cells would be 0.26kWh per string, not 26.0kWh. Each string would be $500, and you'd need $57,700 in cells to get the same capacity is a Leaf pack.