So I have read quite a bit in the subject. What’s creating the magnetic field is the current, not the voltage. Of course, the voltage must be there becuase 0v =0A. The higher the voltage is the higher the current gets. It can be calculated with Ohms Law U=IxR.
As mentioned before; If the motor has higher voltage it needs lower current for the same wattage. But if the current is lower, the magnetic field must be lower becuase the current is lower, right? And if the magnetic field is weaker the motor will have less torque but it will be possible to reach higher RPM:s. That’s why high voltage motors has lower kv, the high voltage doesn’t create much torque as the ones running on lower current, so they need to have lower RPM per volt to compensate.
This is just a theory by me, but I think it seems legit. I could run the motor with 12s but it would weaker (slower acceleration) but the top speed would be higher. Some of you mentions that the bearing will not hold up at higher RPM:s, and you are surely right. But it’s not hard to replace bearings on brushless motors if it breaks.
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