[FAQ] - What is an EVSE?

[whitex]

You are better off without it. The failure rate on the J.1 Taycan 22kW onboard chargers was quite high, and when they fail they kill ALL charging and sometimes the car, which then requires towing. (Happened to mine and several others on here.)

Perhaps learning from this experience, plus the very low numbers of people in Europe who have 3-phase power at home, Porsche dropped the option from the J1.2 Taycan.

Do you have any statistics comparing the failure rates of 11kW vs. 22kW OBCs? It's hard to tell from the forum, as both 11kW and 22kW failures have been reported by members.

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[anonymouse]

Do you have any statistics comparing the failure rates of 11kW vs. 22kW OBCs?

No - it's all anecdotal. But if you google "Taycan 22kW failure" you will see some information including a Rennlist post where they go into some technical commentary about the alleged design fault.

 

[whitex]

No - it's all anecdotal. But if you google "Taycan 22kW failure" you will see some information including a Rennlist post where they go into some technical commentary about the alleged design fault.

I thought a similar failure mode affected the 11kW OBC (maybe why the Macan EV is actually limited to 9.6kW now in the US).

 

[Jonathan S.]

I thought a similar failure mode affected the 11kW OBC (maybe why the Macan EV is actually limited to 9.6kW now in the US).

If Porsche can’t figure out how to supply a reliable 11kW charger like everyone else, that would probably be the worst reason for the 9.6 max.

 

[Voltaire]

I thought a similar failure mode affected the 11kW OBC (maybe why the Macan EV is actually limited to 9.6kW now in the US).

It's not just the Macan; the OBC on the J1.2 has been limited to 9.6kW since the update to 4360, which I got back in December. I doubt they did that by accident, but my dealer has no information.

 

[Jonathan S.]

Now I see that its Audi Q6 and A6 cousins on the same PPE also appear to be limited to 9.6 which means that the Q4 on the lowly VW platform will charge 20% faster than them on a standard hardwired home setup despite all the marketing hype about PPE DCFC speeds (which are far from assured in North America).

 

[whitex]

If Porsche can’t figure out how to supply a reliable 11kW charger like everyone else, that would probably be the worst reason for the 9.6 max.

I am sure they could figure it out, or pay someone to figure it out for them, but they simply decided it’s not worth it. Limiting the existing OBC to 9.6kW apparently had a higher ROI (low denominator of software configuration change, plus perhaps an OTA deployment).

 

[snstevens]

I am not very familiar with options for those, quick google gave me something like this (this one is a bit beefier, 30kW, but I have seen lower powered ones cheaper):
https://cyberswitching.com/product/dc-fast-charging-station-level-3-ev-charging-station-480v
There was another one mentioned here a little while back, which even had a fancy configurator for options including colors, cable length, etc, but I cannot find it at the moment.

Here is a link to the charger that you’re thinking of @whitex. Not unreasonably priced either for what it does.

https://www.primecom.tech/collectio...cts/dc-ev-supercharger-for-home-or-office-208

 

[whitex]

Here is a link to the charger that you’re thinking of @whitex. Not unreasonably priced either for what it does.

https://www.primecom.tech/collectio...cts/dc-ev-supercharger-for-home-or-office-208

Thanks, I was remembering a much sleeker looking one, but this is a good example of for the cost of after delivery upgrading the J1.1 to 19.2kW/22kW, you can install a home 21kW DC charger instead, which will charge all of your EV's at 21kW. So if doing it just for home charging (vs. using 22kW on the road) as a retrofit, might as well install a DC home charger.

 

[pollybampton]

Thanks for the info.

 

[roger-on-taycan]

Thanks, I was remembering a much sleeker looking one, but this is a good example of for the cost of after delivery upgrading the J1.1 to 19.2kW/22kW, you can install a home 21kW DC charger instead, which will charge all of your EV's at 21kW.

In principle, yes. But while 60 or even 80A 240V circuits are not impossible to come by residentially, I wonder what you’d need to get 21KW out of one of those…

 

[whitex]

In principle, yes. But while 60 or even 80A 240V circuits are not impossible to come by residentially, I wonder what you’d need to get 21KW out of one of those…

21kW requires 87.5A at 240V. You could install it on an 100A circuit (so 80A sustained) and limit it to 19.2kW instead of 21kW.

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