Ninebot ESX Error Code 17
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"External Battery MOS Switch error, please check master control"
If your Ninebot ESX(ES1, ES2, ES3, or ES4) or SNSC (1.0 or 1.1) is beeping or has a red wrench icon and flashes this code, read below.
If you clicked the wrong error code, go back to the Error Code Index.
Previous Error Code: Ninebot ESX Error Code 16 - Next Error Code: Ninebot ESX Error Code 18
Cause
It can be assumed from the error code description that the MOSFET responsible for switching batteries is detecting an issue.