Swap 2023 Taycan CT battery with Taycan 2025 CT

[Gino]

How do you interpret that recall notice to arrive by May 17: is it that Porsche will know by then which cars are affected or knows them now and just has not sent out the announcements yet?
If they know now, should the recall already be linked to your VIN on the NHTSA Recall Check website? Check for Recalls: Vehicle, Car Seat, Tire, Equipment | NHTSA

I got the impression in May 17th they will be sending out letters to the owners with specific VINs that their data shows must be repaired or replaced. The second recall seems a bit more vague so I'm anticipating they will send another letters to vehicle owners of certain other VINs where they don't have definitive data to make a determination that these specific VINs require repair or replacement but will be tracked further for a certain period to determine if any additional actions will be required. The fact they have said in the preliminary recall notices that there is a risk of battery fires due to electrical shorts immediately after DC charging beyond 80% charging level. They advise not to charge past 80% as a precaution until the battery modules can be inspected, repaired or replaced. I'm sure they want to avoid liability if any LG battery pack short circuits and causes a fire in someone's garage potentially destroying more than just the car in question.
I trust Porsche is being very careful with this situation so I plan to be careful charging beyond 80% which I usually have to do since I only get about 155 miles at 80% and usually don't let it get below 30% so I only end up with about 100 miles to play with between charges. I may start to take it below 20% before charging and once a month to 10% as suggested on this forum to recalibrate/rebalance the battery system.

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[unbiased]

I would be shocked if the new battery pack would be compatible with the old models. Christmas and easter would rather fall on the same day before Porsche would make that happen.

 

[Gino]

I would be shocked if the new battery pack would be compatible with the old models. Christmas and easter would rather fall on the same day before Porsche would make that happen.

The 12 individual battery pouches in each module are likely the same LG product which will continue to be improved year after year but the design of each module very likely could change from year to year or the number of modules & configuration of those modules could easily change as the overall system design changes.
Porsche doesn't make the batteries, just the way they are assembled & housed with the battery maintenance, charging & protection electronics which are the most likely things to change each year. I've been told it takes 10-12 hours just to get access to remove and replace 1 or more battery modules (each with 12 LG battery pouches) so the labor cost alone to fix one module by replacing any failed LG battery pouch/element is at least $2K plus the cost of the battery itself.
This seems to be comparable to replacing an ICE engine so I don't expect Porsche had expected to need to get into these battery modules/packs so frequently. I really hope they get to the bottom of these early battery failures so their battery systems can be counted on as reliable just like their ICE products. The last thing everyone needs are a bunch of batteries which have the potential to catch fire after their warranties are expired and 2nd & 3rd owners get surprised by a fire in their garage or god forbid locks the driver/passengers in the car when there is a fire due to battery system failure.
I hope Porsche has made it possible to unlock & open any door from the inside regardless if the vehicle has power or not...

 

[hifi239]

I would be shocked if the new battery pack would be compatible with the old models. Christmas and easter would rather fall on the same day before Porsche would make that happen.

The counterpoint is that Porsche doesn't want to stockpile batteries. Porsche would need replacement batteries available for gen 1 for 8 years to cover warranty replacements, and US law requires Porsche to have replacement parts available for Taycans for 10 years, which for gen 1 would be out to 2034. If I were them I'd make the new batteries backward compatible. The form factor and mounting likely can't change much so why change the interface (electrical and cooling ports).

 

[cccmanhattan]

Who knows.. maybe it will be like the steering wheel upgrade they offered to early PDK cars that an up/down button on each side instead of an up paddle on the right and down paddle on the left. They made it available and expensive and I know loads of people paid for it. The same could be true for early Taycan owners.

 

[tbinmd]

Solid state battery would be the only upgrade that would be worth spending the money on to upgrade. Smaller footprint, with larger capacity and faster charing times.

 

[Sace]

The counterpoint is that Porsche doesn't want to stockpile batteries. Porsche would need replacement batteries available for gen 1 for 8 years to cover warranty replacements, and US law requires Porsche to have replacement parts available for Taycans for 10 years, which for gen 1 would be out to 2034. If I were them I'd make the new batteries backward compatible. The form factor and mounting likely can't change much so why change the interface (electrical and cooling ports).

They would then need to qualify the new battery in all aspects which probably requires all sorts of QA, compliance testing etc. Since it's a new battery probably also new BMS system charger and so on.

I think it's easier and cheaper just to buy the old version from the supplier. They won't have them in stock but have the ability to get them produced for many years to come.

 

[Gino]

The counterpoint is that Porsche doesn't want to stockpile batteries. Porsche would need replacement batteries available for gen 1 for 8 years to cover warranty replacements, and US law requires Porsche to have replacement parts available for Taycans for 10 years, which for gen 1 would be out to 2034. If I were them I'd make the new batteries backward compatible. The form factor and mounting likely can't change much so why change the interface (electrical and cooling ports).

I would expect Porsche to standardize as much as possible the battery form factor, the connections and the charging system rather than change it for every model year which would be suicide. I hope the upcoming battery passport requirement in Europe will allow every battery to be tracked. I could just imagine if thieves rent cars just to swap parts will also swap batteries if they are standardized to work on many years of a certain model.
I spoke to an AVIS operations manager at Orange County airport and he said they have a big problem with people renting for a few days just to swap a bunch of very expensive parts and AVIS doesn't realize until after the vehicle has been rented multiple times that the parts were swapped. If every battery reports it's identity at all times to the vehicle and to Porsche servers to be compared to it's actual configuration then AVIS would catch who took it and what vehicle the battery module(s) ended up in. Midnight auto shops could very easily tell a customer they will replace their battery packs with fresh ones (from a rental car) and charge 50% of what a dealer charges and the owner would think they got a great deal. AVIS is having this problem mostly with Tesla Model 3s but also every other volume EV like the Chevy Volt, Bolt, etc.
Porsche doesn't rent Taycan's but if the same battery module parts are used in the higher volume consumer platforms then you could see people renting to source the parts needed to repair/replace battery modules.
I'm working with the US Department of Commerce and the EU to be able to track the configuration of all vehicles and their parts back to the manufacturer so stolen or compromised/counterfeited parts cannot be used in any vehicle going forward.

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