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  1. R

    Help! MY1020D Running like a hammer drill! Sabvoton controller

    I am a newbie, just building my first escooter. 72v 28ah lithium battery, 60v 2500watt my1020d brushless motor, sabvoton 80a/100a controller. Having trouble when I advance the throttle by more than one step at a time, the motor starts to start making all kinds of noise, like a hammer drill. If I...
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