It may be cheaper and more efficient to get more batteries, which wouldn't need to be large ones, mind you. And i do believe you could step up the voltage, but you would lose efficiency through the transformer. 12 volt batteries come in all sorts of shapes and sizes--motorcyle batteries are quite small.
With higher voltage, though, you would be hard pressed to find an inexpensive motor controller, unless you went with an AC motor, if I'm not mistaken. Most of the OEM plug ins use an AC motor and run around 300v battery voltage.
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 RIP Maxima 1997-2012
Quote:
Originally Posted by jamesqf
I think you missed the point I was trying to make, which is that it's not rational to do either speed or fuel economy mods for economic reasons. You do it as a form of recreation, for the fun and for the challenge.
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