Recall: Power Outlet May Cause Charging Cable to Overheat (20-24) APB6 - December 13, 2023

[Polar993]

What @daveo4EV said, except is your Tesla charger installed on a 100A breaker, therefore capable of 19.2KW (80A)? If so, make sure your adapter is 80A rated since your Taycan with its 19.2KW option will draw the full 80A.

Also, the universal Tesla wall connector can only deliver 48A (11KW), if you want a 19.2KW charger there are fewer options, one of them is the Porsche Wall Charger (which is hardwired and therefore not subject to the issues PMC+ and PMCC suffer from as they are plugin).

I have 3 80A Tesla chargers. I converted 2 of them to J1772, but have been using the third one with an adapter for months now, at full 19.2KW(80A). So if your Tesla charger is 80A, the simplest and least effort and money solution is just to keep using it with a small 80A rated adapter.

Thanks for the useful info!!!

Looks like I bought the wrong adapter. The one I got is only rated to 60A: https://www.amazon.com/dp/B0BQMCTMG2?psc=1&ref=ppx_yo2ov_dt_b_product_details

Since I have a first gen Tesla charger though, is that capped at 48A? Is it only the newer Tesla chargers that deliver 80A?

Regarding the Porsche Wall Charger, I thought that was more of a "housing" that utilizes the mobile charger that comes with the car. It allows the mobile charger to be wall mounted and has an area to manage the cord and the connector.

https://www.suncoastparts.com/produ...Ay8yIvXDLQyJ4LrwMFMeuOPULrqFhNaQaAsYqEALw_wcB

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[LongLive959]

What @daveo4EV said, except is your Tesla charger installed on a 100A breaker, therefore capable of 19.2KW (80A)? If so, make sure your adapter is 80A rated since your Taycan with its 19.2KW option will draw the full 80A.

Also, the universal Tesla wall connector can only deliver 48A (11KW), if you want a 19.2KW charger there are fewer options, one of them is the Porsche Wall Charger (which is hardwired and therefore not subject to the issues PMC+ and PMCC suffer from as they are plugin).

I have 3 80A Tesla chargers. I converted 2 of them to J1772, but have been using the third one with an adapter for months now, at full 19.2KW(80A). So if your Tesla charger is 80A, the simplest and least effort and money solution is just to keep using it with a small 80A rated adapter.

im still having difficulty speaking non-tesla (esp related to charging). Is this 19.2kw somewhat equivalent to Tesla’s old “dual charger” where the car would pull 80a? That’s my current setup….unfortunately the charger fried and the new ones are all capped at 48a.
Just trying to understand how many km (miles) are added per hour….i was getting around 80-90km/hr on the old set up

 

[daveo4EV]

you don't need the TeslaTap for what your EVSE can push - you need the TeslaTap for what your can pull…

if you have a 19.2 kW Taycan - buy a 19.2 (80 amp) TeslaTap
if you have an 11 kW Taycan (standard) - buy an 11 kW TeslaTap (48 amp)

your Taycan can not pull more power than it can pull regardless of how powerful the EVSE is

you dont' need a TeslaTap any bigger than your vehicle's capabilities.

simple.

 

[whitex]

Thanks for the useful info!!!

Looks like I bought the wrong adapter. The one I got is only rated to 60A: https://www.amazon.com/dp/B0BQMCTMG2?psc=1&ref=ppx_yo2ov_dt_b_product_details

Ok, as @daveo4EV said, for use with all Tesla chargers you need an adapter which matches your car's maximum possible draw, which is 80A. So for your car, get the 80A one, so you never have to worry should you connect to an 80A Wall Connector. I've been using this one for the last few months, 2-3 times a week charging at 80A for a few hours, no problems.
https://www.amazon.com/gp/product/B0C4FBD4DY
Note: there is nothing special about the above adapter, just one example. I have and used others. You just need one you believe will be good quality (reviews?) and is rated for 80A. Their prices range from $30-$250.

Since I have a first gen Tesla charger though, is that capped at 48A? Is it only the newer Tesla chargers that deliver 80A?

No, Gen1 and Gen2 can go up to 80A, Gen3 only goes to 48A. HOWEVER, the actual maximum is dependent on your installation - your electrician would have set a rotary dip switch inside the Wall Connector, which will limit it according to your home wiring capabilities. So any of those could be set to give you only 32A or 40A for example. If properly installed, the quickest way for you to check is to find the circuit breaker for the Wall Connector, then multiply it by 0.8 (or 80%) - that is the maximum current your installation will provide to the Taycan. The car will draw the lower of the two numbers, the Wall Connector set maximum or 80A. So if your breaker is 60A or less, you can permanently use the 60A adapter you've got at home (but don't take it to any other Wall Connectors which might be >60A, get yourself a second 80A to carry in the car).

Regarding the Porsche Wall Charger, I thought that was more of a "housing" that utilizes the mobile charger that comes with the car. It allows the mobile charger to be wall mounted and has an area to manage the cord and the connector.

https://www.suncoastparts.com/produ...Ay8yIvXDLQyJ4LrwMFMeuOPULrqFhNaQaAsYqEALw_wcB

The Porsche Wall Charger I was talking about is this one:
https://shop.porsche.com/us/en-US/p/porsche-wall-charger-connect-9J1068209-B/9J1068209
It looks similar, but it's one unit, not the mobile charger in an enclosure. It has to be wired to a 100A circuit in order to provide 19.2KW or 80A.

 

[whitex]

im still having difficulty speaking non-tesla (esp related to charging). Is this 19.2kw somewhat equivalent to Tesla’s old “dual charger” where the car would pull 80a?

Yes. The same thing except for a Taycan it's not 40A or 80A, but 48A or 80A - the 19.2KW upgrade ups the car's maximum charging current from 48A to 80A, so not quite "dual" charger, more like "1.67x charger"

That’s my current setup….unfortunately the charger fried and the new ones are all capped at 48a.

You can still pickup Gen2 HPWC's on ebay, some new in the box, if your wiring is 100A and your Taycan has the 19.2KW upgrade. Or pickup the Porsche Wall Charger Connect and install it on the 100A wiring from the fried one.

Just trying to understand how many km (miles) are added per hour….i was getting around 80-90km/hr on the old set up

On an 80A setup I've been getting about 17.2KWh per hour into your battery (after loses). I get about 2.5miles/KWh, so 43 miles/hr or 69km/hr. Now, I have a heavy foot and I drive a lot of short trips, people here have reported 3.5miles per KWh, so that would be 60.2km/hr or 96.8km/hr on an 80A charger. You can check your own consumption in MyPorsche app and do your own calculations. On 48A charger you will get about 10.3KWh per hour in your battery.

 

[LongLive959]

Yes. The same thing except for a Taycan it's not 40A or 80A, but 48A or 80A - the 19.2KW upgrade ups the car's maximum charging current from 48A to 80A, so not quite "dual" charger, more like "1.67x charger"

Thanks. Yes “dual charger” was just Tesla branding. But good to know how much juice I can pump in. I wonder about long term battery health….i had 3 melted charger cables/ports (all wired correctly by Tesla rec. electricians) and subsequently Tesla has done away with the 80A option. Could be supply/demand….or is there something they discovered about battery health? I guess we’ll wait and see how the Taycan batteries hold up.

I tend to run around a lot, so being able to stop at home, quickly top up and head back out is a nice option to have

 

[whitex]

Yes “dual charger” was just Tesla branding.

It wasn't branding, it literally was 2 identical 40A chargers. If you have the 80A option and one of your chargers dies, you can have the service center just disable one of them and continue using the second one as the 40A only charger.

i had 3 melted charger cables/ports (all wired correctly by Tesla rec. electricians) and subsequently Tesla has done away with the 80A option.

Makes no sense. There are temperature sensors in the handles which will kill charging in case of overheating. I've been using 80A since 2015 (Gen1 HPWC back then). Currently have a tripple Gen2 HPWC setup at home and 2 EVs which can charge at 80A (they balance so if both actively charge at the same time they get 40A each, but most of the time one is done before the other is plugged in). I doubt Tesla got rid of 80A due to any meltdowns. You might need a different electrician if the meltdown was outside of the HPWC and its cable/NACS connector.

What melted down by the way? Any pictures?

 

[violuma]

if you have an 11 kW Taycan (standard) - buy an 11 kW TeslaTap (48 amp)

I do not see a 48A/11kW option on umc-j1772.com, so should I assume I should get the 50A/12.5kW one?

 

[daveo4EV]

60 amp or 80 amp

 

[LongLive959]

It wasn't branding, it literally was 2 identical 40A chargers. If you have the 80A option and one of your chargers dies, you can have the service center just disable one of them and continue using the second one as the 40A only charger.

Makes no sense. There are temperature sensors in the handles which will kill charging in case of overheating. I've been using 80A since 2015 (Gen1 HPWC back then). Currently have a tripple Gen2 HPWC setup at home and 2 EVs which can charge at 80A (they balance so if both actively charge at the same time they get 40A each, but most of the time one is done before the other is plugged in). I doubt Tesla got rid of 80A due to any meltdowns. You might need a different electrician if the meltdown was outside of the HPWC and its cable/NACS connector.

What melted down by the way? Any pictures?

the end of the hpwc melted. Once (or twice, I forget now) it caused damage to my chargeport.

 

[violuma]

60 amp or 80 amp

The only 60A option I see is this "mini": https://www.umc-j1772.com/index.php?route=product/product&path=17&product_id=146

There is a somewhat cheaper 50A option in a different form factor: https://www.umc-j1772.com/index.php?route=product/product&path=17&product_id=99

While I have the 150kW/400V DC booster on the vehicle, I do not have the 19.2kW AC one.

 

[gnop1950]

@Polar993 You don't want to rely on any Porsche-branded EVSE for use in North America.
I have a Wallbox. I like it. Good technical support if/when you need it.

See EV home charging equipment review videos by Tom Moloughney. Gives an idea of product features. https://www.youtube.com/channel/UCdX0BJNon1c6GfOdeS3pyDw

I beg to differ. I have a PWCC that I've been using over a year with zero issues. Of course I also have the 19.2 Kw option on my Taycan and it is hardwired, so no plug issues.

 

[whitex]

the end of the hpwc melted. Once (or twice, I forget now) it caused damage to my chargeport.

What did Tesla say about it? Did they replace your port and your wall connector under warranty?

 

[Polar993]

Ok, as @daveo4EV said, for use with all Tesla chargers you need an adapter which matches your car's maximum possible draw, which is 80A. So for your car, get the 80A one, so you never have to worry should you connect to an 80A Wall Connector. I've been using this one for the last few months, 2-3 times a week charging at 80A for a few hours, no problems.
https://www.amazon.com/gp/product/B0C4FBD4DY
Note: there is nothing special about the above adapter, just one example. I have and used others. You just need one you believe will be good quality (reviews?) and is rated for 80A. Their prices range from $30-$250.


No, Gen1 and Gen2 can go up to 80A, Gen3 only goes to 48A. HOWEVER, the actual maximum is dependent on your installation - your electrician would have set a rotary dip switch inside the Wall Connector, which will limit it according to your home wiring capabilities. So any of those could be set to give you only 32A or 40A for example. If properly installed, the quickest way for you to check is to find the circuit breaker for the Wall Connector, then multiply it by 0.8 (or 80%) - that is the maximum current your installation will provide to the Taycan. The car will draw the lower of the two numbers, the Wall Connector set maximum or 80A. So if your breaker is 60A or less, you can permanently use the 60A adapter you've got at home (but don't take it to any other Wall Connectors which might be >60A, get yourself a second 80A to carry in the car).


The Porsche Wall Charger I was talking about is this one:
https://shop.porsche.com/us/en-US/p/porsche-wall-charger-connect-9J1068209-B/9J1068209
It looks similar, but it's one unit, not the mobile charger in an enclosure. It has to be wired to a 100A circuit in order to provide 19.2KW or 80A.

Thank you for the useful info. I charged the Taycan last night with my Tesla Wall Connector. It turns out, I have a Gen 2 charger, not Gen 1. With my 60A adapter, I was able to get 16.8KW. It charged pretty fast. I ordered a new adapter that supports 80A, so hopefully I’ll be able to get 19.2KW with it.

I couldn’t find the option to limit the charging to a level below 100% to preserve battery life. Where is that in the PCM menu?

I also noticed that I am only getting 206 miles of range at 100% state of charge. I have a brand new GTS. Shouldn’t I get closer to 233 miles? Even when I set the car to Range, it still only shows about 206 miles. See the photo below. I had just started the car and it’s cold here in the Northeast, so the heat was rather high. I’m sure these things affect the range, but I’m surprised how low the range is at 100%.

I think I will go ahead and order the Porsche Wall Charger. I’ll use the $1,250 credit from Porsche to subsidize it. I can continue using the Tesla charger but it’s not in an ideal location and I would like to have a dedicated Porsche charger for the Taycan.

 

[LongLive959]

What did Tesla say about it? Did they replace your port and your wall connector under warranty?

Say? Nothing. First was a warranty repair - they swapped the cable (not the unit). Second time was out of warranty, paid for a new hpwc (the latest gen that tops out at 48A, so sorry I don’t believe I ever had the Gen 2) out of pocket. Third time I was directed to contact Tesla home charging, as service no longer handled this…I emailed them in March (I forget what year) and got a prompt reply in July that year. It would’ve been better if I’d been left assuming my email got missed. That’s when I finally threw my hands up and said I’m done

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