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watts is volts times amps. in theory, you can take 48 volts at 50 amps and get 2400 watts, or you can take 96 volts at 25 amps and get 2400 watts, and go the exact same speed and acceleration.
Further, if you spend enough time pricing batteries, you find it all about works out to about the same cost and has the same distance and capacity.
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