SamTexas wrote:I must be missing something here. Current is always zero when there is no load. So what's there to measure?
No load means that the throttle is at 100% and there is no load on the motor. As in... you are not on the bike, and the wheel or motor is not being used to move you or anything else...
On this forum we generally measure the output from the battery to the ESC/Controller.
I believe the same method is used with the RC guys etc.
I am not sure how you go about measuring 3 phase DC amps.. it most likely requires specialized equipment.
For measuring my current i just use a turnigy watt meter. I think it cost me all of $30? There are various other RC hobby type voltmeter/amp meter units you can use.. now they are not the most accurate pieces of equipment, definitely not accurate into the decimal range.... but they work.