Level 2 charging rate with a 50 amp capacity

[daveo4EV]

here is an extract from the 2026 Taycan configurator. was the same for the 2025. so charging with over 9.6 kw rate.

this is meaningly as they list 11 kW numbers because in other regions they do support 11 kW charging - the manuals are "universally" true and therefore the same world wide - that does not mean any particular product in a given regions will match the user manual based on regional limits…

another way in which Porsche confuses the market place on this topic…

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[prj]

It's really very simple... Same reason there's 19.2kW/22kW.
It's to do with 1 phase vs 3 phase.

Over here in EU all the Level 2 chargers are three phase. Most households have a three phase connection to the grid. My entire house has "just" a 32 amp connection the grid, but it's three phase.

The single phase huge amperage is a US and to a lesser extent UK thing.

So if you have three phase you will get over 10kW, if not, then 9.6kW seems to be the limit.

In my experience voltage has little to do with it, if there is an undervoltage condition then the charging current is sharply reduced or stopped altogether - on the three phase it turns off the entire phase. So you go from 10.5 kW to 7 kW or 3.5 kW.
The substation my house is connected to had an issue with voltage regulation, and after a lot of troubleshooting, I got the power company to change the voltage regulator - and all my EV's immediately charged at 10.5 kW.

 

[Briguy]

curiouser and curiouser. to add to my confusion, i have a 2020 Taycan 4s in addition to my 2025 Taycan 4s.

when i charge my ‘20 with my 50 amp rate, i charge at about 10.4 kws. My ‘25 Taycan goes to 9.3 kws.

I assume that there is a good explanation for this but would love to hear…

 

[daveo4EV]

It's really very simple... Same reason there's 19.2kW/22kW.
It's to do with 1 phase vs 3 phase.

Over here in EU all the Level 2 chargers are three phase. Most households have a three phase connection to the grid. My entire house has "just" a 32 amp connection the grid, but it's three phase.

The single phase huge amperage is a US and to a lesser extent UK thing.

So if you have three phase you will get over 10kW, if not, then 9.6kW seems to be the limit.

In my experience voltage has little to do with it, if there is an undervoltage condition then the charging current is sharply reduced or stopped altogether - on the three phase it turns off the entire phase. So you go from 10.5 kW to 7 kW or 3.5 kW.
The substation my house is connected to had an issue with voltage regulation, and after a lot of troubleshooting, I got the power company to change the voltage regulator - and all my EV's immediately charged at 10.5 kW.

thanks for this - I understand this and it makes sense the small problem(s) for North America seems to be:

• documentation errors with Porsche all over the map for North American limits
• and the fact that Porsche allowed/shipped 11 kW charging with the Taycan's in North America for 4+ years - and many 2025 MY Taycan's continued this tradition
  • North American Taycan owners have successfully charged at > 9.6 kW for years at this point…with no enforced 9.6 kW limit
• Porsche sells a North American Wall Charger than can do more than 9.6 kW
• it's only recently that Porsche seems to be "enforcing" a 9.6 kW max limit for North American EV's
  • in some cases on vehicle's that previously demonstrated a higher max charging limit
• Porsche has done this with _ZERO_ communication about the "change in specification"

 

[daveo4EV]

curiouser and curiouser. to add to my confusion, i have a 2020 Taycan 4s in addition to my 2025 Taycan 4s.

when i charge my ‘20 with my 50 amp rate, i charge at about 10.4 kws. My ‘25 Taycan goes to 9.3 kws.

I assume that there is a good explanation for this but would love to hear…

who's EVSE are you using achieve teh 10.4 kW charge rate? pics would help…
what the circuit breaker rating "feeding" the EVSE

 

[prj]

I don't think cars with 11kw chargers charged faster than 9.6kW. Most likely only the 22kW/19.2kW did.

At least from an electrical standpoint that's the only thing that makes sense.

 

[ntacus]

I don't think cars with 11kw chargers charged faster than 9.6kW. Most likely only the 22kW/19.2kW did.

At least from an electrical standpoint that's the only thing that makes sense.

Here is the thread Daveo4EV referred to about MY2025 Taycans charging faster than 9.6kW but then no longer do after a software update. I've been dealing with Porsche about this for my own 2025 4S with no success. They would only tell me my vehicle is operating normally and is capable of 11kW, and would not admit the AC charging is limited to 9.6kW.

 

[daveo4EV]

I don't think cars with 11kw chargers charged faster than 9.6kW. Most likely only the 22kW/19.2kW did.

At least from an electrical standpoint that's the only thing that makes sense.

please note the 2nd picture in post #1 of this thread…showing a North American Taycan charging at more than 9.6 kW…

https://www.taycanforum.com/forum/t...-charger-48-amps-not-max-9-6-kw-40-amps.1793/

it's well understood Porsche used to allow 11 kW Taycan to charge at 11 kW with 60/48 amp EVSE's - it's only recently been changed to limit it to 9.6 kw in North America for no published reason from Porsche

the 10.4 kW shown is the amount of power reaching the battery due to charging loss - if you look at the raw power being delivered by the EVSE it was 11 kW as reported by multiple EVSE's including the Porsche Wall Charger sold in North America

there is no question Taycan's used to be able to charge at 11 kW in North America…

 

[prj]

please note the 2nd picture in post #1 of this thread…showing a North American Taycan charging at more than 9.6 kW…

https://www.taycanforum.com/forum/t...-charger-48-amps-not-max-9-6-kw-40-amps.1793/

it's well understood Porsche used to allow 11 kW Taycan to charge at 11 kW with 60/48 amp EVSE's - it's only recently been changed to limit it to 9.6 kw in North America for no published reason from Porsche

the 10.4 kW shown is the amount of power reaching the battery due to charging loss - if you look at the raw power being delivered by the EVSE it was 11 kW as reported by multiple EVSE's including the Porsche Wall Charger sold in North America

there is no question Taycan's used to be able to charge at 11 kW in North America…

Very interesting.
I stand corrected in this case.

In the EU they still charge at up to 10.5 kW (11 kW total).
But of course here it's "just" 3x16A.

 

[daveo4EV]

this picture also shows the back of a North American PMCC EVSE - note the upper left of the specifications sticker than clearlly shows max power as:

40 amps
9.6 kW

https://www.taycanforum.com/forum/t...not-max-9-6-kw-40-amps.1793/page-2#post-23621

 

[daveo4EV]

Very interesting.
I stand corrected in this case.

In the EU they still charge at up to 10.5 kW (11 kW total).
But of course here it's "just" 3x16A.

yeah in the US that's 240V @ 48 amps…single phase AC power

I think Porsche has realized the internal components of the OBC are not up to the task for single phase power and they are "neutering" the OBC via software update for North American regions…and new Taycan's come "pre-neutered" like my North American Macan EV Turbo…

 

[Briguy]

who's EVSE are you using achieve teh 10.4 kW charge rate? pics would help…
what the circuit breaker rating "feeding" the EVSE

I have a chargepoint hard wired 50 amp charger on a 70 amp circuit. you will see from the app summary the charger was delivering about 11 amps. that translated in the car to about 10.4 kw. ‘20 Taycan.

my’25 Taycan never get beyond 9.3 kw at the car.

 

[daveo4EV]

I have a chargepoint hard wired 50 amp charger on a 70 amp circuit. you will see from the app summary the charger was delivering about 11 amps. that translated in the car to about 10.4 kw. ‘20 Taycan.

my’25 Taycan never get beyond 9.3 kw at the car.

chargepoint flex is a 50 amp EVSE as you note, and requires a 62.5 amp circuit breaker - LOL - they don't make 62.5 amp circuit breakers, so 70 amp is the next size up - pre-2025 Taycan can accept upto 11 kw (until Porsche service gets their hands on them and silently downgrades them) - and there is now mulitple data Points that Porsche limiting newer Taycan to 9.6 kW…

I love the ChargePoint flex EVSE it's one of the best EVSE's on the North American market - but it's 50 amp EVSE status is an odd ball in the EVSE landscape - there are no EV's that I'm aware of with a 50 amp OBC - EV tend to have 7.68 kW, 9.6 kW, 11 kW, or 19.2 kW OBC's - no one ships a 12 kW OBC (50 amps @ 240V) - so the Taycan (or any 11 kW EV) can't quite max out the ChargePoint flex's maximum capacity - still a great EVSE recommend it highly if you want to migrate away from Porsche's terrible North American EVSE's…

Porsche has been silent on this topic, but it appears they no longer support 11 kW charging for any of their North American EV's

they do however support 11 kW charging for the MY'2024 and later Cayenne Hybrid…ROFL

nothing here is inconsistent with my post #11 on this thread…it in fact confirms everything.

given a 50 amp EVSE's (70 amp 240v circuit) the 2020 Taycan is pulling 48 amps…
and on the same 50 amp EVSE Porsche has derated the MY'2025 Taycan onboard 11 kW OBC to only allow 9.6 kW (40 amps)…

@Briguy you have a small typo - you said 11 amps in your statemetn where I think you meant 48 amps for 11 kW

welcome to the "new" Taycan in North America the $230k EV that charges slower than it's predecessor and a $42k Hyundai or Model 3…and the newer Chevy Bolts or Kia's

and Porsche is wondering why no one is buying their EV's…

 

[daveo4EV]

here is the current "Standard equipment" page from the North AmericanEV Cayenne eHybrid as of date/time of this posting…

Porsche lists:

• 11 kW AC on-Board Charger
• Supply cable for a NEMA 14-50 Electical socket (a standard 50 amp 240V circuit)
• Mobile Charger with 11 kW charging - impossible for North America and conflicts with the specifications printed on the back of the unit (see picture above)

and the Cayenne eHybrid is confirmed to charge at 11 kW (so far will Porsche neuter them also?)

how Porsche expects their EVSE to charge at 11 kW with a 14-50 power supply cable is anyone's guess - not to mention the sticker on the back of the Mobile Charger clearly indicates it's a 40 amp 9.6 kW EVSE…

but this is an example of Porsche's "confusion" with regards to their EV charging limits…

but apparently if you want an "ev" from Porsche in North America that can charge at 11 kW - get a Cayenne - it can charge faster than the Taycan or the Macan EV…which makes perfect sense with it's 21 kWh battery…

 

[daveo4EV]

My ‘25 CT 4s has the standard 11kw onboard charger but i cannot get close to that charging rate with my 50 amp capacity charger. tops out at 9.3 or 9.4 even in ideal charging conditions (low SOC and optimal battery temp).

Anyone know if Porsche has limited the charging rate? would it be different with the 19.2 kw onboard charger?

MY 2025 Taycans no longer support 11 kW charging in North America
22/19.2 kW is no longer an option for any Taycan world wide…

North American Taycan and Macan are now limited to 9.6 kW by silent Porsche edicts that are as of now unexplained

if you want an 11 kW "EV" from Porsche you have the choice to purchase one of their quality Hybrid products which do support 11 kW charging in North America…

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