Retrofit 22KW charger

[W1NGE]

My experience is: haste makes waste.
The 22kW AC-DC onboard charger (OBC) tends to run into issues, often preventing the car from charging properly.
Sometimes, after plugging in the charging gun, it throws a charging error (with a red warning) just 30 minutes later.
You go to bed thinking you'll wake up to a full battery… but surprise — it's barely even 5%.

I believe the main issue lies in the overheating of the OBC caused by high power output, which then forces the entire charging process to stop.
Every time an error message pops up, the charging gun and cable are noticeably hot to the touch — and that’s just with an 11kW load.

However, I’ve discovered that as long as I reduce the charging station’s output to below 10kW, say around 9kW, the charging process can be completed smoothly without any interruptions.

The reduction in power was I think at one stage a recommendation from Porsche to avoid the issues you mentioned - guidance was then updated prior to the withdrawal of the option. Software patching applied.

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[Chiu]

I am not using Porsche Mobile Charging Connect.
The OBC is the biggest issue….

 

[mpaulus007]

Nor do you charge from 0% or likely need 100% every day.

You are right. I typically arrive at 2-3% and once a week I need a full 100% next morning.

 

[whitex]

for the J1 dealer install pricing was north of $5k including the "kit" from Porsche - not sure it's worth $5k for North America where there is very very very little 19.2/22 kW infrastructure to leverage.

it's worth considering as a $1800 factory option (but still pretty limited use).

For 2023 in NA it was $1.680USD from the factory

 

[whitex]

My experience is: haste makes waste.
The 22kW AC-DC onboard charger (OBC) tends to run into issues, often preventing the car from charging properly.
Sometimes, after plugging in the charging gun, it throws a charging error (with a red warning) just 30 minutes later.
You go to bed thinking you'll wake up to a full battery… but surprise — it's barely even 5%.

I believe the main issue lies in the overheating of the OBC caused by high power output, which then forces the entire charging process to stop.
Every time an error message pops up, the charging gun and cable are noticeably hot to the touch — and that’s just with an 11kW load.

However, I’ve discovered that as long as I reduce the charging station’s output to below 10kW, say around 9kW, the charging process can be completed smoothly without any interruptions.

I charge my Taycan at 19.2kW daily, never experienced such overheating. Charging handle is noticeably warm to touch after a longer session, especially in the summer, but no issues. Perhaps it's the EVSE that is overheating (if it's a Porsche one, that's probably it). I also charge an Audi at 19.2kW, and in the past have charged multiple Teslas at 19.2kW without any issues too.

Maybe worth noting, my EVSE's are Tesla Wall Connectors Gen2 and they have thermal sensors in the handle (even the one I converted from Tesla connector to J1772, I added a matching thermal sensor) so the charge rate would throttle if the handle got too hot. However, I've yet to see the charge rate throttle during the 10+ years I've used this setup at home with multiple EVs, most of which have been 19.2kW capable.

EDIT> My 19.2kW OBC did die after ~2 years of usage. Just had it swapped out in January this year. It dies when it was cold out though, so probably not overheated.

 

[mpaulus007]

Use case 3: Using excess electricity from your solar panels which deliver >20KW during sunny days.

 

[Grim]

The 22kWh option is pricy. I did consider spending more on a DC charger that can deliver say 25kWh knowing that it would also work on my other car (also no 22kWh option) or any other car I planned to buy in the future.

Those DC chargers are pretty expensive and 11kwh should be enough for me in most circumstances so don’t go that route in the end.

 

[freeforall]

Very much doubt it given the reliability issues besides there is no need these days for 22kW AC given the amount of DC out there.

The 22kw is extremely useful not necessarily for home charging but for long trips when your destination is a city center. In this case you just plug your car when you arrive and in a few hours it is charged to 100%. This way you can do a 700+ km round trip for example without stopping a single time for DC charging. For this kind of trips it is actually faster doing it in the Taycan than an ICE if you have the 22kw charger. E.g Paris <-> Brussels I do 0 stops whereas I had to stop with an ICE to put some gas.

 

[DerekS]

Anyone knows if J1.2 allows for retrofitting 22KW charger? Using retrofit from J1.1?

unbelievable that this car is so slow on AC!!

Its really not worth upgrading IMO. You should be able to get a full charge overnight on the 11kW charger.

It's only slow when watched Just plug in and go to bed.

 

[Taycan4S_UK]

22KW = 4 hours from 0-100%
11KW =8 hours from 0-100%
My night does not have 8 hours

Your nights will be without your Taycan as it sit at the dealer for replacement 22kw charger ?

 

[whitex]

Hmmm.... those who chose to pay for it think it's worth it, those who chose to skip the option think it's not worth it. Is anyone surprised?

I bet we can do this with almost any Taycan option. Let's do sport sound next....

 

[F1Ruaraidh]

Anyone knows if J1.2 allows for retrofitting 22KW charger? Using retrofit from J1.1?

unbelievable that this car is so slow on AC!!

Dealership quoted me last month to replace my 11kW with a 22kW on J1.1.

No idea about 1.2 though sorry.

 

[F1Ruaraidh]

Hmmm.... those who chose to pay for it think it's worth it, those who chose to skip the option think it's not worth it. Is anyone surprised?

I bet we can do this with almost any Taycan option. Let's do sport sound next....

Yes I'd rather have it. Loads of 22kW AC chargers at work and on the continent esp near German in laws. 22s are really common in on street charging in Germany which is what makes the lack of 22kW charger on J1.2 really odd.

Surely the supplier could've engineered a more robust by now.

My car currently in for a failed 11kW charger.....

 

[whitex]

Yes I'd rather have it. Loads of 22kW AC chargers at work and on the continent esp near German in laws. 22s are really common in on street charging in Germany which is what makes the lack of 22kW charger on J1.2 really odd.

Surely the supplier could've engineered a more robust by now.

My car currently in for a failed 11kW charger.....

I'm guessing no 22kW decision was a combination of low take rate of 19.2kW in North America and problems with 22kW charging on single phase in EU - the known issue was specific to EU, at one point Porsche issues a bulletin asking all users of 22kW on-board-chargers charging on single phase only to limit their charge rate to 6kW (vs. 7.3.kW that the charger accepted). I bet Porsche seeing a declining volumes decided it's not worth paying some Tier 1 supplier to redesign the on-board-charger - cheaper to just stick to 11kW.

I have a 19.2kW North American charger. I use it every day at home. It failed after ~2 years. But I also know of people with 11kW chargers which failed. Parts fail, such is life. The main defect IMO was the single phase charging in EU, which Porsche got a too high of a quote to fix. Maybe next time they pay someone to design a new onboard charger, they will offer the 22kW option again.

 

[mpaulus007]

Porsche seeing a declining volumes decided it's not worth paying some Tier 1 supplier to redesign the on-board-charger

...I thought Porsche belongs to Volkswagen group and there are Audi, VW and other VW-brands benefiting from a 22KW charger...

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