[Poll] - Porsche charging specification lie? Macan is not allowing 11 kW max charge rate - capped at 40 amps? 9.6 kW max rate.

[tmrqs]

what is this Porsche advisors club? is this something that you need to be invited to?

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[alxman]

"You do not talk about Fight Club!”
Sorry, from now on

 

[ntacus]

the real issue is figuring what "the truth" is

is it really 9.6 kW hardware limited
is it different
is it 11 kW
did porsche make a mistake with software
do they internally know it's a mistake
can they fix it
will they fix it
do they care

the truth of this situation is only known by a few people inside prosche, but I doubt they are even pursuing "resolving" it…so I doubt it's getting any bandwidth

One thing I did notice is that while the main porsche website now lists 9.6kW onboard charger, dealer sites still show 11kW onboard charger for existing inventory of 2025 Macan EVs (example here under standard equipment).

It seems like Porsche in general is moving to only support 9.6kW in North America. This thread from the taycanforum indicates that the latest SW update has reduced the J1.2 Taycan AC charge speed to 40A

I have a brand new 2025 Taycan and have never been able to get higher than 40A charging. I've tried it on multiple 48A capable chargers: Porsche Wall Charger capable of 80A and two separate 48A Tesla Universal Wall Connectors. Porsche Service center has told me the 9.5kW I'm getting is normal. Porsche customer service has been a little inconsistent, at first they said I should be getting 11kW but then said that my charging rate is expected. At this point I'm asking Porsche customer service to reimburse me for the cost of adding a hardwired charger since I already had a NEMA 14-50 capable of 40A and the mobile charger that came with the car would have been sufficient. We will see what they say but I figure asking them to pay out for their misleading/changing specs is the only way to really get their attention. In the case of the Taycan I'm hoping they can revert the software change that slowed down the speed.

 

[daveo4EV]

One thing I did notice is that while the main porsche website now lists 9.6kW onboard charger, dealer sites still show 11kW onboard charger for existing inventory of 2025 Macan EVs (example here under standard equipment).

It seems like Porsche in general is moving to only support 9.6kW in North America. This thread from the taycanforum indicates that the latest SW update has reduced the J1.2 Taycan AC charge speed to 40A

I have a brand new 2025 Taycan and have never been able to get higher than 40A charging. I've tried it on multiple 48A capable chargers: Porsche Wall Charger capable of 80A and two separate 48A Tesla Universal Wall Connectors. Porsche Service center has told me the 9.5kW I'm getting is normal. Porsche customer service has been a little inconsistent, at first they said I should be getting 11kW but then said that my charging rate is expected. At this point I'm asking Porsche customer service to reimburse me for the cost of adding a hardwired charger since I already had a NEMA 14-50 capable of 40A and the mobile charger that came with the car would have been sufficient. We will see what they say but I figure asking them to pay out for their misleading/changing specs is the only way to really get their attention. In the case of the Taycan I'm hoping they can revert the software change that slowed down the speed.

face palm is for Porsche not for you - man oh man Porsche is really determined to screw this up.

I appreciate the data - I'm 100% certain this is an unnecessary software limitation and the result of deep confusion inside of porsche - there is no reason to limit it to 9.6 kW - it's just requires some brain power to understand the mobile charing limit of 9.6 kW, vs. the hardwired limit that matches the vehicle.

this is simply stupid and demonstrates Porsche's lack of engagement on EV issues.

 

[AlanH]

if you're getting more than 9.6 - please update this thread with your Macan model, your region, and the EV Charger (EVSE) you're using - thanks!

and a screen shot from inside the car showing more than 9.6 kW

thank you thank you thank you!!! this is extremely useful!!! it proves the that some Macan 's can exceeed 9.5 kW!!

also it indicates the Macan reports close to "raw" input power - not the charge rate after losses (like the Taycan).

sooo useful - thank you for taking the time.

I’m getting the same results for my Macan 4 from a public L2 charger in France (11Kw)

 

[rpbrazil]

I have installed the Porsche charger in my house on a 3-phase connection. I get 10.5 - 10.8kW. That is 16A 3-phase 380V

 

[Petzi]

Macan can charge with 11KW everywhere in the world except in US. Could this be connected to the current? We have 220V, you have 110V?

 

[daveo4EV]

Macan can charge with 11KW everywhere in the world except in US. Could this be connected to the current? We have 220V, you have 110V?

no - Porsche ships other EV's (taycan & Cayenne/Panamera Hybrid) that charge at 11 kW on North American 220V EVSE's…my 2020 Taycan had NO PROBLEM charging at 11 kW for 4+ years on my existing EVSE infrastructure. North American 2024/2025 Cayenne Hybrids charge at 11 kW every day…no issue.

Porsche even ships the North American Porsche Wall Charger which supports 220v charge rates from 12 to 80 amps (1.44 kW to 19.2 kW)…

11 kW is a fully supported and plausible charge rate. There is _NO_ excuse or technical explanation for this limit.

I'm tiring of people looking for "an out" for Porsche on this - it's simple - they've screwed up and failed to do basic details management on a key EV characteristic and specification. There is no execuse, it's well established that it's not an actual limit - but for some reason they are handicapping the charge rate of the Macan because they don't understand their own product - and don't seem to care to do so.

NOTE: they also shipped/installed/delivered a 19.2 kW onboard charger as a factory option for North American Taycan's - and it worked and provided that charge rate - they even provided a retrofit kit for 11 kW Taycan to install the upgraded charger if you wanted to pay outrageous money for it.

11 kW is a supported charge rate for many EV's in North American, it's common, it's easy, it's plausible, and for some reason is not available for North American Macan EV owners when it was promised via a now adjusted onboard charger specification.

 

[Petzi]

@deavo: I am so sad that you are "tired of people, looking for out of porsche reasons". fact is that a lot of us can charge with 10-11KW. I think it is usefull to know this.

Besides I am tired of people that are looking for minor flaws with this car! What difference does it make, if you charge your car at home in 8 or 9 hours ? Watch tests of other cars on youtube, see what problems they have.

 

[daveo4EV]

@deavo: I am so sad that you are "tired of people, looking for out of porsche reasons". fact is that a lot of us can charge with 10-11KW. I think it is usefull to know this.

Besides I am tired of people that are looking for minor flaws with this car! What difference does it make, if you charge your car at home in 8 or 9 hours ? Watch tests of other cars on youtube, see what problems they have.

it's a difference of 20% - 48 amps (promised) 40 amps (Delivered)

off peak EV charging window for california residents is only 7 hours…(midnight to 7 am) - after that power is more expensive to charge at home…

7 hours @ 11 kW = 77 kWh
7 hours @ 9.6 kW = 67.2 kWh

time to charge is important - and some people paid more money for their home EVSE install (sometimes a lot more money) to get a 60 amps install (48 amp charge rates) vs. a 50 amp install (40 amp charge rate) based on the published Macan EV specification…

what other specifications are you willing to have Porsche lie/misrepresent by 20% as a key characteristics of your vehicle. Range? Wheelbase? Cargo Capacity? 0-60? top Speed? Passengers? Weight? Towing capacity?

Charger rate (AC and DC) is a key specification of any EV and Porsche can't be bothered to get it right - and they have limited it in only one Region of the world for no technical or obvious reason.

Macan Turbo 0-60 in 3.1 seconds - but only in Europe…in North America it's 3.72 seconds…cause we couldnt' be bothered to understand our product so we limited it in that region only for no obvious reason.

 

[MFitz]

it's a difference of 20% - 48 amps (promised) 40 amps (Delivered)

off peak EV charging window for california residents is only 7 hours…(midnight to 7 am) - after that power is more expensive to charge at home…

7 hours @ 11 kW = 77 kWh
7 hours @ 9.6 kW = 67.2 kWh

time to charge is important - and some people paid more money for their home EVSE install (sometimes a lot more money) to get a 60 amps install (48 amp charge rates) vs. a 50 amp install (40 amp charge rate) based on the published Macan EV specification…

what other specifications are you willing to have Porsche lie/misrepresent by 20% as a key characteristics of your vehicle. Range? Wheelbase? Cargo Capacity? 0-60? top Speed? Passengers? Weight? Towing capacity?

Charger rate (AC and DC) is a key specification of any EV and Porsche can't be bothered to get it right - and they have limited it in only one Region of the world for no technical or obvious reason.

Macan Turbo 0-60 in 3.1 seconds - but only in Europe…in North America it's 3.72 seconds…cause we couldnt' be bothered to understand our product so we limited it in that region only for no obvious reason.

I think you will get 99.9% agreement with this. Case closed. Thanks for representing how most of us feel.

 

[ColdCase]

I was a system engineer including some electrical power background. So bear with me. I’ve had plenty of third party outfits build hardware and software for my products that didn’t do their job.

An alternate to Porsche not knowing what they are doing in North America was touched on previously and may go something like this:

The engineering charts say a 9.6 kW load is drawing 40 amps and 11.2 kW is drawing 48 amps. If provided in two phases, each wire and the corresponding car infrastructure has to support 40 or 48 amps. If provided in three phases over three wires, each wire carries roughly 24 or 28 amps. Big difference in wire sizes needed and on board component ratings.

After the fact, Porsche may have found that the car infrastructure can’t support 48 amps reliably (some reports of smoke filled cars here). But two phase 40 amps is within design margins. So they derated two phase charging without cleaning up the paper (or haven't had a chance to yet). I think I’ve read some reports of the latest Taycan software also limiting two phase charging to 9.6 Kw.

Many companies derate capability after the fact, some never fix the documents.

An example that comes to mind is the Sanyo washing machine fiasco of a few years ago. Their marketing decided to claim a spin rate that the machine was not designed for to get a competitive edge . Many machines subsequently developed bearing issues and Sanyo updated the software for lower spin rates. No reliability problems since but I don’t think they fixed the documentation, or was slow to.

I've known a few high tech companies that value their engineering reputation that offer customers a token rebate for their errors.

Anyway another theory or perspective, but it still sounds like a Porsche engineering and/or marketing goof that is in the noise for them. It is a small company that puts a lot of effort in marketing, after all. Plenty of pressure to stretch the envelope.

At this point, They should be giving us a rebate on the chargers we purchased anticipating 11.2kW .

 

[daveo4EV]

I was a system engineer including some electrical power background. So bear with me. I’ve had plenty of third party outfits build hardware and software for my products that didn’t do their job.

An alternate to Porsche not knowing what they are doing in North America was touched on previously and may go something like this:

The engineering charts say a 9.6 kW load is drawing 40 amps and 11.2 kW is drawing 48 amps. If provided in two phases, each wire and the corresponding car infrastructure has to support 40 or 48 amps. If provided in three phases over three wires, each wire carries roughly 24 or 28 amps. Big difference in wire sizes needed and on board component ratings.

After the fact, Porsche may have found that the car infrastructure can’t support 48 amps reliably (some reports of smoke filled cars here). But two phase 40 amps is within design margins. So they derated two phase charging without cleaning up the paper (or haven't had a chance to yet). I think I’ve read some reports of the latest Taycan software also limiting two phase charging to 9.6 Kw.

Many companies derate capability after the fact, some never fix the documents.

An example that comes to mind is the Sanyo washing machine fiasco of a few years ago. Their marketing decided to claim a spin rate that the machine was not designed for to get a competitive edge . Many machines subsequently developed bearing issues and Sanyo updated the software for lower spin rates. No reliability problems since but I don’t think they fixed the documentation, or was slow to.

I've known a few high tech companies that value their engineering reputation that offer customers a token rebate for their errors.

Anyway another theory or perspective, but it still sounds like a Porsche engineering and/or marketing goof that is in the noise for them. It is a small company that puts a lot of effort in marketing, after all. Plenty of pressure to stretch the envelope.

At this point, They should be giving us a rebate on the chargers we purchased anticipating 11.2kW .

thanks for this - excellent post - I find this also plausible and have thought along certain lines…I also have an engineering background and have experience with "changes required after the fact"…

again it simply troubles me that Porsche continues to have troubles in this area - their overall story with eV charging has been fraught with confusion, misdirection, recalls, and utter mis-information and they seem permanently brain dead about the North American charging limits of mobile vs. non-mobile EVSE's vs. onboard chargers leading to this exact type of confusion…

I have also read about some Taycan (all?) being derated to 9.6 kW when they used to operate ostensibly "fine" at 11 kW for years at this.

their apparent confusion in this space makes me feel they really not properly invested in EV's to get this "right" - and their typical lack of communication or engagement on these sorts of issues is deeply frustrating to me personally.

it does not give me "warm fuzzies" about porsche's engineering prowess that they can't seem to get their story straight in this space - they've been confusing this, and mis-representing it ever since the Taycan roll out…and with Macan they seem to have learned nothing on the engineering front or customer support front in this important area of EV capabilities.

I agree is a small area that will lack for attention and we are very very likely to never hear/received any facts as to why this limit exists, nor do I feel Porsche is losing sleep on this (although someone must've lost some sleep given they felt the need to "change" the North American website)…

it's disappointing that a premire luxury german SUV EV has the 2025 charge rate of my 2017 budget Chevy Bolt…and Porsche itself is confused about what it could be or should be.

I notified Porsche North America in writing (with operational data/telemetry) about thermal issues with their powersupply cable for their EVSE's and was brushed off as "no big deal" and told to simply "charge" slower - 4 years later the PMC+/PMCC had a recall for thermal issues with their Powersupply cable…

https://www.taycanforum.com/forum/t...uide-to-the-porsche-evse-pmc-pmcc-pwcc.13886/

https://www.taycanforum.com/forum/threads/nema-14-50-supply-cable-heat-data.1940/

Porsche's North American charging game is weak sauce and continues to be that way due to lack of engagement and avoiding "getting" the detail right. It's disappointing.

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