Assuming we could container a portable battery horse in to my nonetheless to be purchased Nissan Leaf, would it be probable to assign pronounced Leaf regulating a portable generator?

MY LOGIC IS AS FOLLOWS:
*It takes domicile 110V 15A opening about sixteen hours to assign a Leaf (according to their website).
*110V x 15A by my calculations equals 1,650 watts.

I know it is crazy, though put up with me: What kind of generator would furnish which kind of successive wattage?

SPECIFICALLY, when we see a generator which advertises, say, 3,300W peak, though will run may be sixteen hours upon 4 gallons of gas at 50% load, what does which mean?

Does it meant which we have been removing 1,650W outlay out of usually 4 gallons of gas for sixteen hours? If which is true, afterwards it would mount to reason which those 4 gallons used to assign a 100 mile battery would proportion to twenty-five miles a gallon. Just a mental exercise. we am not unequivocally starting to do it, though we am curious.

Thanks,
John
ADDED DETAILS:
I conclude your answers, though a little of we have been blank a suggestion of a question. we know 25mpg is not good. we am usually observation a generator as a once in a blue moon option, ie when we get stranded with no charging stations as well as do not instruct to call a draw truck. It would be used may be once or twice a year maximum. It is usually a fun mental exercise, so do not over consider your answers.
Thanks-John