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Old 06-18-08, 12:21 PM   #1
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Speed Controller and Battery Question

Hi there, can somebody please explain to me what is the purpose of a speed controller? Why are there so many options? Are speed controllers specifically meant for a certain voltage only? Do some increase the efficiency of the entire e-bike through smarter circuitry?

As for batteries, what does the voltage determine and what does the amperage determine? I see people have setups of... say... 24v with 10amp, or 24v with 20amp, what's the difference?

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Old 06-18-08, 01:30 PM   #2
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More voltage means more speed, more amps (amp-hours) means further distance (more storage capacity) at the same voltage.
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