[March 2026 Update] - Porsche's ONLY OTA update hobbles North American Taycans to max 9.6 kW charge rate…

[tonykara]

North American Taycan's used to charge at 11 kW on single phase in North America - there is ample proof dating back to late 2019 with the first deliveries of North American Taycan's…it's a recent undisclosed/undocumentec software change to cap the maximum charge rate in North America at 9.6 kW…

Panamera's hybrids can charge at 11 kW in North America and so can Cayenne Hybrid's…

11 kW charging requires a hardwired EVSE with a 60 amp breaker - allowing a 48 amp charge rate. The Porsche Wall Charger is one such EVSE - there are others.

the maximum charge rate of a _MOBILE_ EVSE is 9.6 kW- but that is a separate limit vs. the Onboard Charger (OBC) hardware in the vehicle.

it's a recent software change to the North American fleet to neuter the OBC to only allow 9.6 kW as the max charge rate - even when using a Porsche Wall Charger on a 60 amp or larger circuit.

Porsche to date has failed to disclose that they are doing this - and also failed to provide any motivation for the change. dealers remain 100% clueless as to this.

Thanks for your reply. Just after writing this I spotted another more recent thread where you posted a lot more info. It’s good to have your reply here for completeness.

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[SergeyIndy]

North American Taycan's used to charge at 11 kW on single phase in North America - there is ample proof dating back to late 2019 with the first deliveries of North American Taycan's…it's a recent undisclosed/undocumentec software change to cap the maximum charge rate in North America at 9.6 kW…

Panamera's hybrids can charge at 11 kW in North America and so can Cayenne Hybrid's…

11 kW charging requires a hardwired EVSE with a 60 amp breaker - allowing a 48 amp charge rate. The Porsche Wall Charger is one such EVSE - there are others.

the maximum charge rate of a _MOBILE_ EVSE is 9.6 kW- but that is a separate limit vs. the Onboard Charger (OBC) hardware in the vehicle.

it's a recent software change to the North American fleet to neuter the OBC to only allow 9.6 kW as the max charge rate - even when using a Porsche Wall Charger on a 60 amp or larger circuit.

Porsche to date has failed to disclose that they are doing this - and also failed to provide any motivation for the change. dealers remain 100% clueless as to this.

Thank you Dave as always. You strike again with perfect info! Copy to @Techwizard100 as an example of the level of attention to detail standard that we have become used to.

For @tonykara, I have a 2023 and original owner with all the updates and still charging at 11kW with no issue, but ready for this to change at any time as it could be hidden in some OTA update. I would have thought the battery monitoring OTA as part of ARB7 for me would have dropped that rate to 9.6kW but it did not.

 

[tonykara]

Thank you Dave as always. You strike again with perfect info! Copy to @Techwizard100 as an example of the level of attention to detail standard that we have become used to.

For @tonykara, I have a 2023 and original owner with all the updates and still charging at 11kW with no issue, but ready for this to change at any time as it could be hidden in some OTA update. I would have thought the battery monitoring OTA as part of ARB7 for me would have dropped that rate to 9.6kW but it did not.

If it changes on you in upcoming weeks, would you let us know here?

 

[Techwizard100]

Thank you Dave as always. You strike again with perfect info! Copy to @Techwizard100 as an example of the level of attention to detail standard that we have become used to.

For @tonykara, I have a 2023 and original owner with all the updates and still charging at 11kW with no issue, but ready for this to change at any time as it could be hidden in some OTA update. I would have thought the battery monitoring OTA as part of ARB7 for me would have dropped that rate to 9.6kW but it did not.

As I copied everyone on in my recent thread, just back from Porsche with all the latest updates still charging at 11 KW. I will inquire with my sources, but I don’t know that this is 100% deployment/“perfect info”.

 

[whitex]

@daveo4EV , should you re-title this thread to "J1.1 cars advertised to have 11kW charging being limited to 9.6kW via OTA update" instead of the current title suggesting the opposite. I'm only suggesting this as per your post that we should be using this thread to discuss Porsche NERF'ing the cars remotely, but anyone clicking on this thread will see your original post that says the opposite - Porsche advertises 9.6kW but actually works at 11kW. Maybe add to the fist post a link to post number where Porsche reversed the issue.

 

[daveo4EV]

@daveo4EV , should you re-title this thread to "J1.1 cars advertised to have 11kW charging being limited to 9.6kW via OTA update" instead of the current title suggesting the opposite. I'm only suggesting this as per your post that we should be using this thread to discuss Porsche NERF'ing the cars remotely, but anyone clicking on this thread will see your original post that says the opposite - Porsche advertises 9.6kW but actually works at 11kW. Maybe add to the fist post a link to post number where Porsche reversed the issue.

excellent suggestion - I hope my title update meets with your approval!!! Thanks for the suggestion.

 

[whitex]

excellent suggestion - I hope my title update meets with your approval!!! Thanks for the suggestion.

Looks good! It should help consolidate the discussions in this thread.

 

[gnr3312]

Just checked as my 2024 4S it’s currently charging. My vehicle is up to date on all recalls and software updates.

 

[RED!]

Just checked as my 2024 4S it’s currently charging. My vehicle is up to date on all recalls and software updates.

Strongly recommend you refuse the OTA when it comes. I made the mistake of being a good little software security toady and now I charge way slower.

 

[snstevens]

@daveo4EV , should you re-title this thread to "J1.1 cars advertised to have 11kW charging being limited to 9.6kW via OTA update" instead of the current title suggesting the opposite. I'm only suggesting this as per your post that we should be using this thread to discuss Porsche NERF'ing the cars remotely, but anyone clicking on this thread will see your original post that says the opposite - Porsche advertises 9.6kW but actually works at 11kW. Maybe add to the fist post a link to post number where Porsche reversed the issue.

So here's my situation. I always thought I had an 11 kW Onboard AC Charger. Always. In fact, I have records in 2025 of charging at near that rate. Then after the recent OTA and workshop OBC updates I get 9.4 KW.

For the record, I have the Porsche Wall Charger Connect which is hardwired to a 100A circuit so technically I can deliver 19.2 KW. I knew this unit was overkill for the J1.1 4S that I'm driving, but 4 years ago my plan was to upgrade at some point to vehicle with 19.2 KW onboard charger so I was future-proofing. In the meantime, 11 KW was nice.

So I was considering going into the dealer and complaining that the car isn't up to spec, so I began looking for where in my paperwork it says I have an 11 KW OBC. Guess what - can't find it anywhere! Not on the sticker, not on the extended Cost Sheet, not on the Configuration printout - no where.

What am I missing? Where else can I look to find out if I bought a car with an 11 KW OBC?

 

[daveo4EV]

So here's my situation. I always thought I had an 11 kW Onboard AC Charger. Always. In fact, I have records in 2025 of charging at near that rate. Then after the recent OTA and workshop OBC updates I get 9.4 KW.

For the record, I have the Porsche Wall Charger Connect which is hardwired to a 100A circuit so technically I can deliver 19.2 KW. I knew this unit was overkill for the J1.1 4S that I'm driving, but 4 years ago my plan was to upgrade at some point to vehicle with 19.2 KW onboard charger so I was future-proofing. In the meantime, 11 KW was nice.

So I was considering going into the dealer and complaining that the car isn't up to spec, so I began looking for where in my paperwork it says I have an 11 KW OBC. Guess what - can't find it anywhere! Not on the sticker, not on the extended Cost Sheet, not on the Configuration printout - no where.

What am I missing? Where else can I look to find out if I bought a car with an 11 KW OBC?

Porsche has never confirmed/denied 11 kW for North American Taycan's - they have posted and removed 11 kW OBC as a specification at various times on the North American Configurator "standard" equipment technical list…

currently the MY'2026 Taycan lists 9.6 kW as the OBC for the Taycan in Standard Equipment

this thread has screen shots of it listed a 9.6 kW and 11 kW at various times between 2019 and 2025…

the 9.6 kW OBC is a software limited 11 kW OBC because the non-NOrth American Taycan's list 11 kW as the OBC, and there is no separate part number or physical OBC that is only 9.6 kW…

your OBC is 9.6 kW because Porsche's current firmware version installed on your vehicle says so!!

it's undetached from reality of the actual hardware limitation of the physical OBC components - Porsche has probably downgraded it to avoid excessive failures cause by single phase 240V North American electrical standard…

but there is no such thing as a 9.6 kW OBC in Porsche's supply chain - there are 11 kW OBC"s that are configured for certain regions to cap the charge rate at 9.6 kW…

below is the screen shot from the current Porsche USA configurator/Standard Equipment page…Note the 9.6 kW OBC which is a figment of Porsche's software imagination specifically limited for North American - other regions list the OBC limit as 11 kW - wanna take bets the OBC is no different between a euro-Taycan and North American Taycan? hint: it's not.

but good luck getting Porsche to acknowledge they've lower the max charge cap.

 

[daveo4EV]

So here's my situation. I always thought I had an 11 kW Onboard AC Charger. Always. In fact, I have records in 2025 of charging at near that rate. Then after the recent OTA and workshop OBC updates I get 9.4 KW.

For the record, I have the Porsche Wall Charger Connect which is hardwired to a 100A circuit so technically I can deliver 19.2 KW. I knew this unit was overkill for the J1.1 4S that I'm driving, but 4 years ago my plan was to upgrade at some point to vehicle with 19.2 KW onboard charger so I was future-proofing. In the meantime, 11 KW was nice.

So I was considering going into the dealer and complaining that the car isn't up to spec, so I began looking for where in my paperwork it says I have an 11 KW OBC. Guess what - can't find it anywhere! Not on the sticker, not on the extended Cost Sheet, not on the Configuration printout - no where.

What am I missing? Where else can I look to find out if I bought a car with an 11 KW OBC?

post #70 on this thread shows Porsche claiming an 11 kW OBC for MY'2023 Taycan's…

https://www.taycanforum.com/forum/threads/march-2026-update-porsches-only-ota-update-hobbles-north-american-taycans-to-max-9-6-kw-charge-rate….1793/page-5#post-245256

it would be interesting to know the evolution of the revisions of the OBC between 2019 when the first Taycan's were manufactured and today…while they may be upto rev g or higher (vs rev a for 2019) I highly doubt they actually have physically different OBC's for 11 kW and 9.6 kW…but they are much much more knowledgeable about warranty issues with the OBC's in various regions…

and they clearly have been shipping Taycan's that can charge in excess of 9.6 kW at least since 2019…it's only recent software updates that have limited Taycans to 9.6 kW in North America - but they have not installed new OBC hardware…

why for example did they list the Taycan with a 11 kW OBC in 2023 - and today they list it with a 9.6 kW OBC?

 

[whitex]

below is the screen shot from the current Porsche USA configurator/Standard Equipment page…Note the 9.6 kW OBC which is a figment of Porsche's software imagination specifically limited for North American - other regions list the OBC limit as 11 kW - wanna take bets the OBC is no different between a euro-Taycan and North American Taycan? hint: it's not.

Oh come on, "figment of their imagination", really? Is the current Taycan 4 spec a figment of Porsche's imagination because it's just a software locked Taycan Turbo drivetrain?

The key point is that the manufacturer is on the hook to to deliver the performance they advertised, and unfortunately they advertised only 9.6kW as stock performance for most Taycans in the US market. So unless you have a Taycan with 11kW on the build spec, you don't really have a case against them. The fact that those Taycans actually requested and were able to utilize 11kW would easily qualify as a defect, which they recently fixed over the air. They are allowed to sell even a 22kW OBC as a 9.6kW by simply limiting it in software, again no different than selling J1.1 GTS which was just a software limited Turbo, or any all wheel drive J1.2 trim under Turbo which is a software locked Turbo.

 

[daveo4EV]

Oh come on, "figment of their imagination", really? Is the current Taycan 4 spec a figment of Porsche's imagination because it's just a software locked Taycan Turbo drivetrain?

The key point is that the manufacturer is on the hook to to deliver the performance they advertised, and unfortunately they advertised only 9.6kW as stock performance for most Taycans in the US market. So unless you have a Taycan with 11kW on the build spec, you don't really have a case against them. The fact that those Taycans actually requested and were able to utilize 11kW would easily qualify as a defect, which they recently fixed over the air. They are allowed to sell even a 22kW OBC as a 9.6kW by simply limiting it in software, again no different than selling J1.1 GTS which was just a software limited Turbo, or any all wheel drive J1.2 trim under Turbo which is a software locked Turbo.

I think we can both agree Porsche has had a "fluid" relationship with their standard OBC's actual charging limits since at least 2019 - only recently has there been consistency in both the standard equipment claims and the actual behavior of the hardware…

and what about the 11 kw Taycan OBC shown in 2023?

Porsche has been all over the map in North America for the charging limit.

they did the same thing with the Macan - it was listed as 11 kW OBC - but never shipped in North American as 11 kW - and later updated to 9.6 kW on the website several months after deliveries started in North America…

https://www.macanevowners.com/forum...ate-using-tesla-universal-wall-charger.18123/

 

[whitex]

post #70 on this thread shows Porsche claiming an 11 kW OBC for MY'2023 Taycan's…

https://www.taycanforum.com/forum/threads/march-2026-update-porsches-only-ota-update-hobbles-north-american-taycans-to-max-9-6-kw-charge-rate….1793/page-5#post-245256

That post is from May 30th, 2023, so probably applies mostly to model year 2024 Taycans (anything ordered in June or later was going to be next model year). I have a 2023 Taycan delivered in Feb 2023, and in its build sheet only 9.6kW was listed under standard options.

In my specific build spec however, I had added an upgraded OBC which clearly stated 19.2kW capability (which was not Porsche's figment of imagination just because the actual OBC part could deliver 22kW in 3-phase countries).

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