Ninebot ESX Error Code 38
"Battery charging protection error. Please check if the extra battery is loose or check the error code again before restarting the vehicle."
If you clicked the wrong error code, go back to the Error Code Index.
This error is often caused when a fast charger is used on an ESX scooter.
If the charging current is too high it will throw this error.
Use the stock charger, make sure not to exceed the rated charging current.