the PMC+ couldn't be updated by Porsche with software - if they could've they would've…
All this was missing was a mic drop emoji.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.
while I'll take the rare internet "win" in this case - I believe the poster's original perspective demonstrates the effectiveness of Porsche's communication in this circumstance at pushing their narrative in this circumstance.
Porsche's EVSE Narrative is bit like Apple's iPhone 4 narrative: You're holding it wrong.
Porsche's mastery of communication and leaning on their long standing engineering excellence reputation has gotten them through this mess - I would venture most of Porsche's customers believe their narrative - I personally find that unfortunate.
Mine did too for about a year. Then I started getting charging failures overnight. Cutting it to 50% worked again, but pissed me off.
My experience was identical to this. My PMC+ worked great for about one year, then it started to get charging failures overnight. It didn't just run hot, but actually shut down charging because of the heat, so my car was not charged in the morning. I have all the right spec equipment - Hubbell 14-50R and 6ga wire from my 50A fuse to the Hubbell socket.
My Porsche charger worked great at 100% for a year - then stopped working at 100% one day last year (overheat/red light). That pissed me off. Tried the other day at 100% and car only hit 63% SOC of the set 80% target when I checked in the next morning.
The shortest path to feeling happy again is forgetting all about Porsche's overpriced bad EVSEs and get the Wallbox.My Porsche charger worked great at 100% for a year - then stopped working at 100% one day last year (overheat/red light). That pissed me off. Tried the other day at 100% and car only hit 63% SOC of the set 80% target when I checked in the next morning.
Not sure if to laugh, nod in vehement agreement, or get mad at this. Either way, well captured @daveo4EV , indeed "mic drop" time.
As it is in the UK in the vast majority of homes, we can only access 32Amps which limits our home charge rate to 7.4kW max.
Agree I use the Porsche charger with no problems at all at 6 kwatts and 32 Amps.This is plenty to charge the battery to 85 % 90% of the time.One really does not need to charge at 9 Kwatts at home
Dave,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…but not the PMC+ - but I believe the PMC+ would also default to 50% if Porsche had the ability to modify it's firmware (which they don't) - so Porsche let's an indecipherable sticker stand in for their lack of a firmware update.
personally I prefer an EVSE that runs cooler than 150F in normal/expected operation, doesn't require an indecipherable sticker, and doesn't achieve an operational surface temperature in normal operation that is considered legally scalding hot if water of the same temperature was allowed to touch a child's skin…
there is no reason Porsche needs their power supply cable to achieve temperatures of 162F in normal operation in 65F ambient conditions…other EVSE's that use appropriate wire gauge run much much cooler decreasing 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.
