HV Battery Insurance UK?

[chun]

When you say Porsche approved does this include Porsche extended warranty? Do you have link to this detail?

You'd have to search in the forum, it was from other users. As you can see, I'm not uk based.

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[Taycan4S_UK]

Same ask here. I’ve not found anything while googling. Any source or links would be appreciated.

 

[rb33gl]

An interesting thread. My guess is that there will be independents prepared to do battery/module swaps and reconditioning at lower prices than the £280+VAT an hour charged by OPCs. There's a lot of margin there. Having seen some of the battery removal videos there doesn't seem to be anything too complex to doing this. Certainly not as complex as rebuilding a GT3 engine or PDK gearbox. And people are getting their heads around Porsche's BMS and reprogramming them.

As time goes on, battery technology will improve too. Who wouldn't want to swap out a battery with SOC of 75% with another lighter, more powerful battery giving better range and reliability?

 

[W1NGE]

An interesting thread. My guess is that there will be independents prepared to do battery/module swaps and reconditioning at lower prices than the £280+VAT an hour charged by OPCs. There's a lot of margin there. Having seen some of the battery removal videos there doesn't seem to be anything too complex to doing this. Certainly not as complex as rebuilding a GT3 engine or PDK gearbox. And people are getting their heads around Porsche's BMS and reprogramming them.

As time goes on, battery technology will improve too. Who wouldn't want to swap out a battery with SOC of 75% with another lighter, more powerful battery giving better range and reliability?

Swapping batteries is a whole new topic and not as straightforward as we might think.

To rescue the J1.1 from severe depreciation all Porsche had to do was to provide an upgrade path to the J1.2 battery pack but didn't.

Certain modules could be swapped but not the entire pack due to limiting architectural changes apparently.

Missed opportunity I'd say.

 

[rb33gl]

Swapping batteries is a whole new topic and not as straightforward as we might think.

To rescue the J1.1 from severe depreciation all Porsche had to do was to provide an upgrade path to the J1.2 battery pack but didn't.

Certain modules could be swapped but not the entire pack due to limiting architectural changes apparently.

Missed opportunity I'd say.

But haven't people had J1.2 whole battery pack swaps for J1.1? I'm sure I've seen some mentioned on here

 

[prj]

Swapping batteries is a whole new topic and not as straightforward as we might think.

To rescue the J1.1 from severe depreciation all Porsche had to do was to provide an upgrade path to the J1.2 battery pack but didn't.

Certain modules could be swapped but not the entire pack due to limiting architectural changes apparently.

Missed opportunity I'd say.

Huh???
There is a J1.2 retrofit kit including software/coding for the J1.1 BMS.
When a battery gets replaced on any J1.1 now it's a J1.2 battery with the retrofit kit, they don't make J1.1 batteries anymore at all.

And people are getting their heads around Porsche's BMS and reprogramming them.

Don't hold your breath. There's a difference between flashing/coding the factory software and being able to write unsigned software into the unit. It's like the difference between a toddler taking first steps and an olympic sprinter.

 

[W1NGE]

But haven't people had J1.2 whole battery pack swaps for J1.1? I'm sure I've seen some mentioned on here

I'm not sure but possibly so. I should have added that you don't get the bump in range afforded to the J1.2 which would make a significant difference.

 

[prj]

I'm not sure but possibly so. I should have added that you don't get the bump in range afforded to the J1.2 which would make a significant difference.

You do get increased range. Not the 30% because only 13% comes from the higher battery capacity (the rest is aero, more efficient rear motor and more efficient AC), but when replacing and older battery with a new J1.2 one, you get around 15% range improvement on a J1.1. 13% is straight capacity and then additionally your SoH is reset, which gives the rest.

 

[W1NGE]

Huh???
There is a J1.2 retrofit kit including software/coding for the J1.1 BMS.
When a battery gets replaced on any J1.1 now it's a J1.2 battery with the retrofit kit, they don't make J1.1 batteries anymore at all.


Don't hold your breath. There's a difference between flashing/coding the factory software and being able to write unsigned software into the unit. It's like the difference between a toddler taking first steps and an olympic sprinter.

Yep appreciate they use the J1.2 modules but wasn't certain that a complete array replacement was also possible.

Happy to be corrected. Q

 

[prj]

Yep appreciate they use the J1.2 modules but wasn't certain that a complete array replacement was also possible.

Happy to be corrected. Q

Yeah, there's a full retrofit kit.
Have a look here:
https://static.nhtsa.gov/odi/tsbs/2025/MC-11024023-0001.pdf

 

[W1NGE]

You do get increased range. Not the 30% because only 13% comes from the higher battery capacity (the rest is aero, more efficient rear motor and more efficient AC), but when replacing and older battery with a new J1.2 one, you get around 15% range improvement on a J1.1.

Ah, OK.

 

[W1NGE]

Yeah, there's a full retrofit kit.
Have a look here:
https://static.nhtsa.gov/odi/tsbs/2025/MC-11024023-0001.pdf

Nice!

 

[D00notD00d]

I think HV batteries will typically still be viable (albeit reduced power) for 10-20 years.. the 8 year limit being conservative...

I saw a post here from someone in the USA offering HV battery insurance, subject to the car being covered by MFRS extended warranty. Has anyone in the UK investigated the potential for insurance cover for the HV battery after the Porsche 8 year/100,000 miles is reached?

Is it possible? .....Expensive? - I guess you would have to show a properly derived SoH to check acceptance, to set the new degradation limit - and to calculate premium? (all quite complex).

Would the cover replace entire HV rack with latest gen version? .....or perhaps just replace individual 'failed/faulty' modules? I also assume HV a battery failure due to externally inflicted damage would not be covered....

Any info or links on this topic? I did search, but couldn't find such cover for Taycan in UK - most results were more explaining battery insurance cover for accidents etc . ...I imagine there will be a lot of takers for such a product, if the premium/coverage was OK - so I guess supply will meet demand?

Cheers

https://www.warrantywise.co.uk/ev-car-warranty/

I looked a little while ago before Porsche amended the Approved warranty terms to include HV battery defects.
At that time only Warranty Wise had specific EV cover, The cost was greater than Porsche, but goodwill aside, the cover seemed better.

Ironically VW/Audi/Seat sell the best and most transparent/least ambiguous warranty- the only one with Motor Ombudsman accreditation.
https://insurewithaudi.vwfs.co.uk/extended-warranty.html

 

[prj]

Ironically VW/Audi/Seat sell the best and most transparent/least ambiguous warranty- the only one with Motor Ombudsman accreditation.
https://insurewithaudi.vwfs.co.uk/extended-warranty.html

Does not cover HV Battery though, at least it's not listed in the component list.

 

[smoothound]

https://www.warrantywise.co.uk/ev-car-warranty/

I looked a little while ago before Porsche amended the Approved warranty terms to include HV battery defects.
At that time only Warranty Wise had specific EV cover, The cost was greater than Porsche, but goodwill aside, the cover seemed better.

Ironically VW/Audi/Seat sell the best and most transparent/least ambiguous warranty- the only one with Motor Ombudsman accreditation.
https://insurewithaudi.vwfs.co.uk/extended-warranty.html

That's useful D - thanks

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