More Voltage = Less Amp Draw?

[Serum]

Yes, but with a higher voltage you still aim for the 'sweet spot of a BL motor. Meaning it's not screaming at 65000 RPM. but rather at 25-30000 rpm.

If the KV of the motor stays the same (as well as the gearing), it would be obvious that the current will increase too.

But if you gear a vehicle at 40 mph on 2S with a certain motor and gear that same vehicle on 40 mph with 8S, the current will be significant lower with the 8S.

It takes a certain amount of power to accelerate a vehicle, and at a higher voltage with the same speed the P=U.I becomes relevant

The higher the voltage, the more efficient a setup runs, and the lower the voltage the more current is needed to get the same power (watts)