What Happens To Us After 8 Years? (When battery warranty expires)

[Sace]

There will probably be options as there is many of the cars on the road. But we could hope that many of the failures at that point have shown and been addressed while the cars are in warranty.

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[slothinker]

My local Porsche shop was replacing a Taycan battery. Attached are a shot of the battery on a workbench and the underside of the Taycan w/out battery.

 

[Tooney]

There is a company called recell in us that handles tesla and porsche batteries, i dont know if anyone here used them to give some insights etc.

Car must be shipped to recell location:

https://recell-ev.com/porsche

 

[voksic]

What's wrong with buying extended warranty?

 

[fakedevil]

What's wrong with buying extended warranty?

I don't think battery is covered. It's always 8 years 100k miles from original sale date

 

[gnr3312]

Car must be shipped to recell location:

https://recell-ev.com/porsche

There’s one here in Austin!

 

[d00d]

Looks like Recell supplies a working but not necessarily new pack, also no upgrade from PB to PB+.

 

[69Mach390]

Just look at the prices of Teslas that are over 8 years old……. Early model S Teslas are under $10k used.

If your Taycan battery completely dies when it’s a decade old…… that car is more likely headed to the junkyard to be sold for parts.

It’s a good thing that complete battery failure isn’t that common.

 

[voksic]

I don't think battery is covered. It's always 8 years 100k miles from original sale date

It is covered. I admit, it leaves a lot of room for Porsche to get out of obligation. However, it is covered. This has been updated a year or so ago. I think when Macan came out.

 

[fakedevil]

It is covered. I admit, it leaves a lot of room for Porsche to get out of obligation. However, it is covered. This has been updated a year or so ago. I think when Macan came out.

Hmm I wasn't aware of this, have a link or info on this extended warranty?

 

[voksic]

Hmm I wasn't aware of this, have a link or info on this extended warranty?

https://assets-v2.porsche.com/gb/-/...Approved-Warranty-Terms-and-Conditions_092025

 

[Speuk]

https://assets-v2.porsche.com/gb/-/...Approved-Warranty-Terms-and-Conditions_092025

I read that as probably covering complete failure of HV battery but not reduced range due to degrading of cells?

 

[voksic]

I read that as probably covering complete failure of HV battery but not reduced range due to degrading of cells?

Correct. Cells in batteries degrade over time. There is no way out of this with current technology. However, they degrade less and less over time. So, it unlikely that in 20 years battery will drop bellow 50% of SoH (or bellow 60% in 15 years).

If a non wear and tear defect happens in those 15 years, you will get new module or new battery. There are many other defects that can happen and that are not realted to cells.

Question is - how will Porsche define dendrites in cells. They are normal occurence in Li batteries. They develop over time. This is why batteries lose capacity. I would argue that, if BMS can control and contain formation of those, then any module failure is under warranty. But they could easily say - physics, nothing we can do.

 

[whitex]

Perhaps see what happened to Tesla Model S/X. Tesla lowered the price of a refurb battery to ~$16K IIRC (including you trading the old, broken one back) - the original price was $42K IIRC, but everyone had warranty then. 3rd party shops offered cheaper repairs (depending on how many modules you needed replaced, could cost you between $2K and $12K from what I read, typically $5K). Porsche likes to charge their tax, so who knows, and there are less Taycans than Model S'es around, so less incentive for 3rd party shops to reverse engineer them to learn how to fix them.

My guess is most batteries will last well beyond the 8 years. Some will die and will get replaced for under $10K with crashed car batteries, and some by 3rd partied with just module replacements using parts from crashed cars. In other countries, there may be some 3rd parties offering batteries with new Chinese modules and some firmware mod to make them work.

Personally I will probably sell my Taycan before 8 years are up. I had 4 Model S'es and the shortest ownership period was 1.8 years, longest was 7.8 years (yep, I sold just before the 8 year/unlimited mileage battery warranty expired - only kept it this long because Porsche couldn't make me a new Taycan for 20 months).

 

[Leccy61]

If a non wear and tear defect happens in those 15 years, you will get new module or new battery. There are many other defects that can happen and that are not realted to cells.

Question is - how will Porsche define dendrites in cells. They are normal occurence in Li batteries. They develop over time. This is why batteries lose capacity. I would argue that, if BMS can control and contain formation of those, then any module failure is under warranty. But they could easily say - physics, nothing we can do.

This is the risk area, from what people have reported Porsche are definining what was reasonably thought of as a production “defect”that’s causing so many premature module failures as “ageing”.

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