Quote:
Originally Posted by kokigami
well, this has been an entertaining read. I have an EV motorcycle project in the back of my mind, shaft drive, but it does have some unique problems. Wondering what you got for speed now with Lithium batteries.
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I have not tested my speed yet because my current frame does not have a speedometer, but 60-65mph is perfectly reasonable to expect at 48v with this set up.
Speed is a product of voltage for most motors, but also torque and gearing if you have a large enough motor, if I wanted it to go faster then a higher voltage would be the way to go, current batteries are 100 amp hours each, 60 amp hour lithium cells would be an option if I wanted to keep the same weight altho a 72v system at 100 amp hours would only weigh 55 pounds more and that is the great part about lithium batteries, the weight, I'm around 40 pounds under stock dry weight and my gas tank is a 5.5 gallon tank, so 40 pounds of fuel as well.