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HPC problem/question

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Thanks - somehow I lost track of the Tesla HPWC cost along the way. Not to belabor this point but - does one really have to BUILD an open EVSE 70A.... Isn't there just a connector/interface out there that can (out of the package) just take to 70A I can offer it and give me back 56A and therfore about 45mi/hour of charge, without the MIT degree in electrification of my Model S? Else, I am now thinking maybe I should just get the Tesla HPWC... posted a similar concern on the Finalize your order thread (don't mean to double post). Thanks.
 
Yes, you can spend the $1,200 for the Tesla WHPC, or spend more to get a Clipper Creek CS-70, 80, 90 etc, or build yourself an OpenEVSE for about $700. Those are the choices out there so far...

You don't have to do anything, really, the unit that comes with the Model S will handle up to 40A, but that's not going to do you any good to run the 2nd onboard charger.