Taycan battery may repeat Bolt battery disaster

[Travis]

My bad. Sorry for the immature nature of the post.

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[Jhenson29]

Hey all, can we please stop these argumentations and bad language in this thread now? It is not up to the standard that we have kept up very well so far.

Administrator I suggest we close this thread since we have moved away from facts and this bickering does not solve anything.

thanks

Yes, let’s all calm down and move the conversation over to something more agreeable.

What are everyone’s thoughts on one-pedal-driving?

 

[Gino]

Gentlemen, frankly, all these concerns and insistence on the supposed fire issues are getting tiring. The Taycan has experienced an extremely small number of fire incidents compared to other electric cars, and these cases are absolutely negligible relative to the total number of units sold.


Unlike other manufacturers, Porsche has likely issued widespread recalls out of caution and professionalism, and it is actively implementing software-based monitoring systems.

Beyond that, one could just argue about the range, especially for the first version, but in my opinion, the Taycan remains an absolutely fantastic car, unmatched in many aspects.


This unfounded fear does not do justice to the product. There are certainly many owners who, like myself, are in love with this vehicle. Period.

It does appear the risk of fire is overblown but Porsche’s actions such as trying to blame customer’s inferior wiring & receptacles in their homes as the reason they want you to charge at a lower current or time.
I’m an electrical engineer and my wiring in my garage along with my receptacles are the best money can buy and are rated for 20A continuous operation. 10A @ 120V or 1.2KV is no problem for my wiring. Unfortunately I cannot run 220/240V to my detached garage without digging up the street in my community.
I am pressing Porsche corporate to assure me there is no risk of fire due to Porsche charging system components such as the external AC charger or the on-board charging system in my 2021 Taycan.
I use the 125V charger at 1.2KW 2-3 days per week for no more than 12 hours per night. This violates Porsche’s service bulletin dated September 2022 which states the 125V charger should not be used more than 12 hours and not for daily use.
They vaguely infer their reasoning is because of improper wiring or low quality receptacles. This is a complete cop out. When I spec a system, I also spec the components the customer must use as well in order to not impair the system I’ve designed and sold to customers.
Porsche definitely has a charging system design/quality issue they are covering up rather than fix and replace the problem units.
I have an extended warranty until January 2030. I will continue to charge in my garage up to 12 hours per day for 2-4 days per week max. I will find out if the 125V AC charging system can last another 5 years without components failing to be replaced under warranty or it causes a fireball in my garage.
I don’t believe Porsche is really worried about fires due to 125V AC charging but I can smell a badly designed charging system in every single vehicle until 2024. They could correct the flaw and recall all the components at issue or blame it on customer wiring/receptacles with the advice not to charge more than 12 hours emergency use only and not for daily use. The latter is the path they chose because it saves them millions in repair/replacement costs under a recall. This is a much bigger concern than an extremely rare fire risk. Of the fire risk were that high then every time a Taycan got in an accident it would be a fireball and no insurance company would insure them.
I hope Porsche does the right thing eventually but I fear the accountants & lawyers are making the decisions on this, not the engineers.

 

[Spyerx]

The Macan EV is having endless HW and SW issues? So Porsche learned nothing from their experience with the Taycan?

Not sure... I'm 3mo and 3.5k miles in on a Macan EV and it's been fine. No software or hardware issues other than the timers for charging behaving different than they do on Taycan.

Car has been fine.

 

[Travis]

I also am an engineer and believe you are not interpreting the rationale for the 120v charging restriction. My understanding is this has nothing to do with concern that the continuous load will overheat feeders or receptacles, it’s that at 1-1.2kw there is minimal actual charging since there is loss to heat, inefficiency, and parasitic loads since misc items are energized while charging. I also believe it has something to do with it being bad for long term battery health to trickle such a low charge for extended periods of time. A plug-in hybrid is a better option for someone who is limited to 120v power and charges at home.

 

[T4S]

Going back to the title of the post - I personally believe that we won't truly know if this repeats the Bolt EV battery disaster until the court case is completed. It is possible we may continue to get further recalls or maybe a TSB once HV battery warranty ends until the court case is completed or if it ends with Porsche succeeding.

As for Porsche themselves, I can only imagine the mess going on internally. They are already struggling to fully support their current EVs, and their future with EVs is questionable, according to recent reports with Cayman/Boxster EVs' battery supplier going into bankruptcy. It doesn't inspire confidence.

The same law group suing Porsche USA is also suing Audi USA and VW Group of America for the same defect. Likely the result of one case will domino effect to the others.

https://wp.classlawgroup.com/wp-content/uploads/Audi-e-tron-battery-recall-lawsuit.pdf

Porsche/Audi is no GM, I am cautiously optimistic that the outcome of the court case will be better handled than how GM did.

 

[Gino]

I also am an engineer and believe you are not interpreting the rationale for the 120v charging restriction. My understanding is this has nothing to do with concern that the continuous load will overheat feeders or receptacles, it’s that at 1-1.2kw there is minimal actual charging since there is loss to heat, inefficiency, and parasitic loads since misc items are energized while charging. I also believe it has something to do with it being bad for long term battery health to trickle such a low charge for extended periods of time. A plug-in hybrid is a better option for someone who is limited to 120v power and charges at home.

I actually had a great call with a Porsche charging specialist through Porsche North America customer service. I asked them if I’m safe to use my 120V charger as long as I don’t use it more than 12 hours a day. I told them I was concerned about the 2022 Porsche Service Bulletin stating the 125V charger should only be used for emergency charging, limit to 12 hours maximum only for emergencies and not to be used on a daily basis.
She looked up my vin on my 2021 delivered in 2022 which I purchased as CPO November 2023. She said that my vehicle had the charging system corrected or cleared of this service bulletin campaign which is why my dealer stated there is no restriction for my vehicle outlined in the service bulletin to charge only in emergencies for less than 12 hours and not for daily use.
I was told there is no issue for me charging as long as I wish as long as I comply with Porsche recommendations for the proper wiring & receptacle which can sustain at least the 1.2KW charging rate which I am currently using.
She did admit that the campaign back in September 2022 was partly related to improper wiring/receptacles at customer residences but there was also external Porsche chargers which required replacement as well as components on the onboard charger to allow for daily use for as long as a customer wishe.
My vehicle had this work completed prior to my CPO purchase which is why I was told at the time of purchase as well as today that I can charge as long as I wish using the Porsche 120V charger and can use it on a daily basis with zero risk of fire or damage to the HV battery.
It was a relief to finally hear this definitive answer from Porsche Customer Service first hand since my service advisor recently told me they have numerous Taycan owners using 120V chargers in their garages for daily use, having had no issues with their chargers, the on board charging systems and zero negative impact on the HV batteries themselves.
My service advisor suggested I call Porsche North America Customer Service to confirm it is safe to use the 120V Porsche Charger.
In summary I was told by Porsche NA Customer Service my 2021 Taycan CPO had been cleared of this service bulletin from 2022 before I took delivery and can charge as long as I need to with zero risk.
This issue has been resolved at least for me so I no longer have to worry if my charger, charging system or HV battery will be damaged or pose a fire risk.
Anyone worried about their specific vehicle as it relates to the 2022 Porsche service bulletin should contact Porsche customer service to have them research their VIN to determine if the repairs or modifications had been completed under that campaign which is no longer active once the corrections have been made.

 

[tonysmart]

I actually had a great call with a Porsche charging specialist through Porsche North America customer service. I asked them if I’m safe to use my 120V charger as long as I don’t use it more than 12 hours a day. I told them I was concerned about the September 2022 Porsche Service Bulletin stating the 125V charger should only be used for emergency charging, limit to 12 hours maximum and not to be used daily. She looked up my vin on my 2021 delivered in 2022 which I purchased as CPO November 2023. She said that my vehicle had the charging system corrected or cleared of this service bulletin which is why my dealer stated there is no restriction for my vehicle outlined in the service bulletin.
I was told there is no issue for me charging as long as I wish as long as I comply with Porsche recommendations for the proper wiring & outlet which can sustain at least the 1.2KW charging rate which I have.
She did admit that campaign back in September 2022 was partly related to improper wiring/receptacles at customer residences but there was also external Porsche chargers which required replacement as well as components on the onboard charger.
My vehicle had this work completed prior to my CPO purchase which is why I was told at the time of purchase as well as today that I can charge as long as I wish using the Porsche 120V charger and can use it on a daily basis with zero risk of fire or damage to the HV battery. It was a relief to hear this from Porsche first hand since my service advisor recently told me they have numerous Taycan owners using 120V chargers in their garages for daily use, have had no issues with their chargers, the on board charging systems, with zero negative impact on the HV batteries themselves.
In summary I was told my 2021 Taycan has been cleared of this service bulletin from 2022.
This issue has been resolved at least for me so I no longer have to worry if my charger, charging system or HV battery will be damaged or pose a fire risk.
Anyone worried about their specific vehicle as it relates to the 2022 Porsche service bulletin should contact Porsche customer service to have them research your VIN to determine if the repairs or modifications had been completed under that campaign which is no longer active.

That’s great news!!!!
Also on this side of the ocean, in Europe, I can share my example: my dealer checked my VIN and confirmed that my ‘22 Gts is not included in the ARB6 recall campaign.

 

[Bognar67]

What is the difference between the affected and unaffected cars?
My MY22 is ok according to the WIN check.

 

[feye]

The Macan EV is having endless HW and SW issues? So Porsche learned nothing from their experience with the Taycan?

The Macan is on a new platform, takes time to weed out the problems...

 

[feye]

...Taycan and they refused to buy a Taycan because the battery issues with the models 2020-2024...

Well, the early LG Chem batteries in the MY 2020 are indeed no good, but after that the batteries are much better. Time will tell, but your post is way too pessemistic!

Also battery prices are still dropping. When the warranty is up, entire replacement battery packs will be less than 5k for Porsche to purchase.

 

[Caraholic]

Well, the early LG Chem batteries in the MY 2020 are indeed no good, but after that the batteries are much better. Time will tell, but your post is way too pessemistic!

Also battery prices are still dropping. When the warranty is up, entire replacement battery packs will be less than 5k for Porsche to purchase.

I really hope your right but I don’t see a 10x reduction in price in only 3 more years.

 

[007]

There’s way too much here to read… can someone just let me know when I can expect my car to explode and burn, then I’ll just park it outside my wife’s boyfriend’s house. This week? Next week? Thank you ?

 

[Dee]

Well, the early LG Chem batteries in the MY 2020 are indeed no good

That's pretty pessimistic as well.
It's a different chemistry but that doesn't mean they are no good.
There are recalls of newer batteries (with the new chemistry) as well.
So....

 

[Tooney]

In summary I was told by Porsche NA Customer Service my 2021 Taycan CPO had been cleared of this service bulletin from 2022 before I took delivery and can charge as long as I need to with zero risk.
This issue has been resolved at least for me so I no longer have to worry if my charger, charging system or HV battery will be damaged or pose a fire risk.
Anyone worried about their specific vehicle as it relates to the 2022 Porsche service bulletin should contact Porsche customer service to have them research their VIN to determine if the repairs or modifications had been completed under that campaign which is no longer active once the corrections have been made.

The Porsche TSB issued in July, 2022, says 120v supply cable for Porsche Mobile chargers is for emergency use only in USA.
I can find no revision or cancellation of that direction in Porsche TSBs posted at NHTSA after July, 2022.

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