[North American] - Home / Residential charging update (using Tesla Universal Wall Charger)

[daveo4EV]

Now that I've arrived home I've been able to accomplish some charging with my home residential charging system.

I can report the following:

• so far the Macan EV works just fine with the Tesla Universal Wall charger(s) I having installed sharing a 100/80 amp dedicated charging circuit
  • last night my Cayenne eHybird and Macan charged no problem!
• the 11 kW EVSE I have yields a 9.3/9.4 kW reading inside teh Macan EV - this would indicate a charging overhead of 1.6 kW - this is much much much high than my 2020 Taycan Turbo on the same charger and same circuit - this will require more investigation - but that is what I'm seeing
  • my 2020 Taycan Turbo would report 10.4 kW inside the vehicle when charging from 11 kW EVSE - a more reasonable 0.6 kW of overhead/loss
• when charging with 40 amps (9.6 kw) the Macan EV reports 8.3 kW inside the vehicle - still a 1.3 kW "overhead" as reported - again not sure if this is accurate, more investigation is required - I'll try and get to the bottom of the issue.

the Macan's charging configuration User Interface is much much simpler and easier, and more easily understood in my opinoin - it's a big improvement vs. the Taycan charging user interface

however, you still can not achieve the very simple: start charging at this specified time - Porsche is still "all in" on departure time scheduling - which requires some mental gymnastics to work out if you want to push the charing schedule into a time-of-use off-peak rates schedule.

also I plugged in after returning from my cross-country trip - and was below 25% - and it immediately started charging - even though my depature schedule was over 12 hours away and my allowed time of use for optimizdd charging was midnight-15:00 - reading the manual confirmed there is a 'fixed' charging behavior to always charge to 25% if you plug the vehicle in. I confirmed this was happening, and the charging stopped at 25% - and then waited to finish charging to 80% based on my charging schedule.

this is an unfortunate behavior and there is no way that I can find to disable it - or adjust the 25% threshold - grrr grrr grrr…

this will go "on my list" of things I request Porsche to update/fix - there must be some way to have the vehicle plugged in and yet not charge outside the window for optimized charging.

that's all - I'm sure I'll learn more in the future.

UPDATE: my 2024 Macan Turbo EV appear to only support a maximum charge rate of 9.6 kW - this differs from the onboard charger specification from the Porsche USA website and standard equipment list for the Macan EV - I have an eMail out to my dealer/service-manage asking for clarification - we'll see what they say in response.

 

[daveo4EV]

I have not yet unpacked the included EVSE - based on my prior experience with the PMC+/PMCC I have no plans to use the included Macan EV EVSE - but will evaluate it vs. the PMC+/PMCC and document any noticible differences or improvements.

 

[CandianPorsche83]

Great info! Does this mean the only way to be able get a more precise and customized charging schedule would be to buy a charger that allows for it like the Chargepoint Flex perhaps?

 

[Senna]

I also have the Tesla Universal. The Macan in the US market has an AC max of 9.6 kW, which surprised me. I think the European version has 11 kW. My Tesla Universal is connected to a 60A dedicated circuit, and I can get a maximum of 9.2-9.3 kW on my Macan, which is more than enough for me. I usually keep the charge at 60% throughout the week, and by the end of the day, I should still have 48%-50% of the battery.

During the week, I use the departure with the “Optimized charging” option set between 10 PM and 5 AM. I’ve never noticed the car charging outside of this window.

On the weekends, I have another departure without the “Optimized charging” enabled. The car charges based on the departure time or if the battery drops below 25%.

Here are my configurations.

 

[Dragon Tourniquet]

Great info! Does this mean the only way to be able get a more precise and customized charging schedule would be to buy a charger that allows for it like the Chargepoint Flex perhaps?

Related to this, does the Tesla UWC not support scheduled charging for non-Teslas? (I don't have one, but am considering it)

 

[Senna]

Related to this, does the Tesla UWC not support scheduled charging for non-Teslas? (I don't have one, but am considering it)

It does have the feature, but the only thing is that you can only set one schedule for all days of the week.

 

[Dragon Tourniquet]

It does have the feature, but the only thing is that you can only set one schedule for all days of the week.

Oh, well that's unfortunate. I'll need to decide if I'm willing to live with that limitation.

It would be nice if they let you define arbitrary time windows per day, and in each time window set the priority order of the following:

• EV charging (from grid if needed)
• EV charging from excess solar
• Grid export from battery
• Grid export of excess solar

That level of flexibility would let you fully take advantage of ToU pricing.

 

[daveo4EV]

I also have the Tesla Universal. The Macan in the US market has an AC max of 9.6 kW, which surprised me. I think the European version has 11 kW.

I can confirm this - and it appears the internal screen during charging reports the "raw" incoming power - vs. the Taycan which reported the actual power "hitting" the battery…

I'm reaching out to my service guy to ask about this discrepancy vs. the standard equipment listed on the North American website @ 11 kW which would require 48 amps.

I let you know what I hear back.

 

[daveo4EV]

my eMail to my local Porsche dealer/service manager - I don't expect a "quick" answer - but I do expect an answer eventually:

Team,

The porscheusa.com website listed the Macan’s onboard charger as 11 kW…specific question is at the bottom - the rest is “background” and setup…


This is the same as the European Macan and the same as my 2020 Taycan Turbo had installed.

In North America mobile/plug-based EV chargers (EVSE’s) like:

• Porsche Mobile Charger Plus (PMC+) - included with Taycan and hybrids
• Porsche Mobile Charger Connect (PMCC) - optional $1020 unit w/Taycan and Turbo Hybrids (LCD screen + Wifi + 25 ft cord)
• Porsche Universal Charger (PUC) - delivered with my Macan…
• Others non-Porsche mobile EVSE units…

Are limited to a 50 amp circuit and a 40 amp charge rate providing a “raw” capacity of 9.6 kW/. This is true and factual and matches the exact expectations in practice as well as theory. This is because these units a “mobile” and NEMA plug based - and the largest NEMA plug allowed in North America for residential use is NEMA 14-50 or 6-50 outlet - which is a 50 amp circuit allowing for a 40 amp charge rate which at 240V is 9,600 watts capacity or 9.6 KW.

To achieve an 11 kW charge rate in North America requires a “hardwired” EVSE on a 60 amp circuit breaker allowing for a 48 amp charge rate - 48 amp charge rate is 11,000 watts or 11 kW “raw”

The sorts of EVSE’s that can provide this are hardwired:

• Power Wall Charger Connect - hardwire and allows from a 15-80 amp adjustable maximum charge rate (1.44 kW - 19.2 kW)
• Tesla Universal Wall Charger - maximum power 60 amp breaker - allowing for an 11 kW charge rate

When charging my 2020 Taycan on my home setup I used to get 10.4 kW charge rate on a 48 amp circuit (11 kW raw) and 8.4 kW when charging with a PMC+/PMCC or other 40/50 amp EVSE’s - this is because the Taycan appears to report the effective charge rate to the battery after charging losses rather than the “raw” power being provided - this is ok and expected - not a problem…

I now have my 2024 Macan Turbo EV:

When plugged into my 60/48 amp Tesla Wall Charger the Macan Turbo reports a maximum charge rate of 9.3/9.4/9.5 - this is inline with a 40 amp charge rate on a 50 amp circuit and 9.3-9.5 during charging simply represents normal/expect voltage fluctuations during the charging process…

When plugged into my NEMA 14-50 outlet with my Cayenne’s PMCC unit - the internal charge rate reported by the Macan is the same 9.3/9.4/9.5 charge rate reported by the Macan when plugged into my 60/48 amp capacity Tesla Universal Wall unit.

My EVSE’s are confirmed to provide 60/48 amps or 11 kW maximum charge rate:

My 2020 Taycan used to obtain 11 kW when charging from my setup
My friends 2021 Audi eTron charges at 11 kW when plugged into my setup
My son’s 2022 Tesla Model Y charges at 11 kW when plugged into my setup
Other EV’s that have 11 kW maximum charge capacity also charge at 11 kW when plugged into my setup…

But…

My 2024 Macan Turbo EV only charges at maximum rate of 9.6 kW

So my question(s) is to you and Porsche North America;

• Is this the expected behavior of the 2024 Macan Turbo EV - maximum charge rate of 9.6 kW?
• Is the standard equipment website wrong in listing an 11 kW on-board charger for the 2024 Macan EV
• Is this a hardware limitation - are North American Macan’s limited to 9.6 kW due to a hardware limitation?
• Is this perhaps a software limitation? If it is a software limitation can we expect a future update to “unlock” the full stated on-board charger capacity?
• Has anyone tested the Macan with a North American EVSE that can provide 11 kW?
• The observed maximum charge rate of 9.6 kW is inline with a maximum charge rate of 9.6 kW and a 40/50 amp cap matching the maximum power of a mobile EVSE (like the PMC+/PMCC/PUC)

The 9.6 kW maximum charge rate is a surprise because:

• This differs from the stated standard equipment list for the North America website
• It’s less than the gen1/gen2 Taycan’s which support 11 kW 48 amp charging in North America
• It’s less than the European Macan’s which support 11 kW 48 amp charging in North America
• It’s less than the 2024 Mobile Cayenne Hybrid’s maximum charge rate which support 11 kW 48 amp charging in North America

An 11 kW onboard charger seems to be the normal part in the supply chain so a maximum charge limit of 9.6 kW is both a surprise and a disappointment and inconsistent with other EV’s in the VW/Audi/Porsche universe.

Question: Is this a hardware limitation of the Macan? Or is this a Software limitation of the Macan? If it’s a software limitation can we expect that to be adjusted/unlocked with a future update? (OTA or dealer service based)

Final question - does the Macan really rally have a 9.6 kW onboard charger when the rest of the entire VW/Audi/Porsche line of EV’s and Hybrid’s support 11 kW48 amp charging? Wow!

I’m sure you’ll need to consult with PCNA and potentially Porsche Germany - I understand that will take some time. But I am requesting answers to my specific questions and explanation of the missed expectations from the specifications published on the North American website.

[Name]
[phone]

[model and vin]

 

[daveo4EV]

it does appear the Macan EV reports the "raw" charge rate vs. the "effective" charge rate…like my Taycan used to do…so this is a charge in software behavior vs. Taycan…

I adjust the PMCC unit amp's down - and could see the exact change on the Macan's screen with the kW rating exactly matching the AMP's from the PMCC unit

Fun fun fun - when charging the Macan my PMCC unit reports 40.7 amp of a 40 amp maximum - my 2020 Taycan used to report 39.6 amps of a 40 amp maximum during charging…ROFL

pic below is my Macan charging from my PMCC unit provided w/2021 Cayenne TurboS eHybrid - note the amps is more than capacity - hmmmm…

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