500 motor amps is definitely the most motor amps you can get. One way to increase the battery amps is to try to get high motor amps at high speed. One way to do that is to drive up a really steep hill really really fast... But on flat ground, you would have to be going really fast I think. It's not going to happen from 0-35mph. The battery amps have nothing to do with the car's acceleration though. That's all motor amps. If you want it to accelerate faster, the motor amps have to be higher.
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