ClipperCreek
small correction - the fastest charge rate you can get with _ANY_ plug-in EV charger (EVSE) is 9.6 kW - not 11 kW as you noted above.
I am running the 48A version of this. Works well, no issues.
Before you throw away your Porsche charger …
Similarly, I decided to take the Porsche NA notice literally and had my electrician verify the specs of what he installed against Porsche requirements. According to the latest bulletin from Porsche its perfectly safe to charge at 100% if you have a NEMA grade outlet installed (along with other specs they provided). So I am sticking with the charger they included in the vehicle, charging at 100%, and having no issues.
Because the EVSE that Porsche provided was failing to charge my car due to it overheating. The fix Porsche provided was to put a sticker on the EVSE and set the charge rate to 1/2 of what it was originally capable of. Now do you understand?
my understanding is that some owners did not follow the specs and Porsche tried to protect the vehicles by having you cut back the rate of charge. I followed that advice as well but then compared the latest bulletin to the specs of my unit and found it to be in compliance, so I went back to 100%. You obviously don't need or benefit from a sticker, and you can set the rate to 50 or 100% on your own. Of course you need to verify your electrical system is in compliance with their specs first.
Have you considered that your understanding might be wrong? My wiring is to spec and I’m using an industrial grade outlet. The new EVSE (non-Porsche) has been flawless and has been in operation longer than the Porsche EVSE was. Until that EVSE fails I’ll consider this problem resolved with the Porsche EVSE as the root cause.
your understanding is mostly wrong - porsche is wrong and they are deflecting blame on the victim - the specs are necessary because Porsche mis-designed their power supply cable to run hotter than you'd drink your coffee - other EVSE's don't get this hot when running the same charging loads - in fact Porsche is the only EVSE in North America that runs this hot - the spec's mitigate Porsche's requirements to accommodate a product that runs 160F surface temperature in normal operation vs. competitive products that don't get much above 105F or even less in identical situations…
Thanks for the detail you provided. In my case, with the charger that came free, I don't have to manually reset it to 100% after each charge. It stays at 100% each time.your understanding is mostly wrong - porsche is wrong and they are deflecting blame on the victim - the specs are necessary because Porsche mis-designed their power supply cable to run hotter than you'd drink your coffee - other EVSE's don't get this hot when running the same charging loads - in fact Porsche is the only EVSE in North America that runs this hot - the spec's mitigate Porsche's requirements to accommodate a product that runs 160F surface temperature in normal operation vs. competitive products that don't get much above 105F or even less in identical situations…
yes if you follow Porsche's specification their power supply cable will no longer melt the NEMA 14-50 socket it's plugged into - but it doesn't have to be that way - competitive products do not stress the NEMA socket as much as the porsche product…
following Porsche's specification does not change the fact that their product runs much much hotter than necessary - it simple means that their poor design will no longer induce failures in other aspects of the system - however if properly designed the porsche product would not have induced those failures in the first place.
also keep in mind it is they who released a tech bulletin and software update that basically nerfs their product to 50% of it's specified rate - and while you can override it - the PMCC will default back to the 50% rate after each power cycle…
personally I prefer an EVSE that runs cooler than 150F in normal/expected operation, doesn't require an indecipherable sticker, and doesn't obtain a surface termperature in normal operation that is considered officially scalding hot if water was the same temperature…
there is no reason Porsche needs their power supply cable to achieve temperatures of 162F in normal operation…other EVSE's that use appropriate wire gauge run much much cooler lessening the likely hood of melting the socket they are plugged into…
but yeah the Hubble NEMA 14-50 socket is ceramic vs. plastic so it can handle 160F+ operating temperatures which the Porsche EVSE commonly achieves in less than one hour of normal operation…so it's a great choice if you to pair it with an EVSE that doubles as a space heater/hot-plate.
