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Actually i think i understand, the limitations are actually on how long wed like to run the motor. The 3 phase VAC can be rectified and transformed down to 14V (max charge voltage for a car battery). So the electric motor im looking at has a typical draw of 80A. To run this for 30 mins i would need 40 Ah, which is typical of one battery. Unfortunately this doesnt sound right. In addition if i am putting out say 30Kw from my powerplant and with the current planned setup i can run it for about 2 hrs, so for a whole tank i get about 60 kw, but i dont know the internal resistance of a car battery to figure out what that is in Ah.
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