Quote:
Originally Posted by Pdelcast
You could make the resistance 50 times as much -- still wouldn't have any real effect on current draw.
You have to realize these motors will pull whatever current they need to produce the torque you ask of them.
A 1512/1.5Y has about 6.5 milliohms of resistance. With a 20 volt battery, the stall current is about 3100 amps.
A 1512/1Y (like the Castle 2650 motor) has about 4.5 milliohms of resistance. With a 20 volt battery, the stall current is about 4400 amps.
So you see, resistance doesn't matter ONE BIT. It's about torque generation -- which is gearing, tires, terrain, vehicle weight, etc.
The motor will draw whatever current it needs to generate the torque that is asked of it. A 1512/1.5Y when incorrectly geared can easily draw over 1000 amps.
All of these types of motors don't have enough resistance to have any real effect on current draw.
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You should have a "newb" controller with a static 1 ohm resistor in series with each motor phase. Would help tame those current bursts, but not sure what adverse effect that would have on the ESC.
