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    I ordered a 48 volt kit but when I plugged in the USB cable I find the controller was set to 36 volts. Why is that?

    There is virtually no difference from 36 or 48 volts except for the low voltage cutoff and you don’t need that unless you have SLA batteries. That is the default setting for all wheels. If someone buys a 24 volt kit the setting must be changed to 24 volts. There are other things to tweak which does make it useful but not required.

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