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Wuxi Hongyi Import and Export Co.,Ltd

How to check the quality of electric bicycle throttle

How to check the quality of electric bicycle throttle

Now more and more electric bicycles are on the road, but because most of  the repairman is not pofessional, now I introduce the throttle , hope we can help you 

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Throttle have three lines, red(+), black(-) and green(signal), also have many lines. But only these 3 colors line are the right lines which can be tested for throttle.

The red pen is moved to the signal line in normal voltage conditions, the measured voltage is about 1V (is) a good turn slowly to the end, to see whether the voltage of the universal table by about 1V slowly rose to about 4.2V if this,throttle is good .

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If there is no voltage or voltage as long as 1V or about 2V between positive and negative voltage, then disconnect the connection between throttle and controller ,directly measure the voltage between positive and negative between throttle and controller, if the measured voltage is about 5V,means the throttle is damaged, need replacement.

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