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On the original version of the Flexible Fast charger EVSE sold with the some BMWs, there was over a dozen different power cables to account for different voltages, plugs, and current ratings. So far, in the USA, there are two viable options, the level 1, 10A cord, and a 40A, level 2 cord. It might be useful to have a 30A cord/plug that could be used at say an RV park. I've not seen the user's manual for the latest, version 2 unit, but it might be interesting to see what options are actually available. It appears that there are some 'extra' pins in that adapter that program the EVSE to adjust its pilot signal, to then tell the vehicle the maximum current it can support based on the cord attached.
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