Gen 1 battery replaced with Gen 2 battery

[hifi239]

I understand that mostly Porsche is replacing J1.1 modules, not the whole battery. What happens when they run out of J1.1 LG modules? Are the new modules backward compatible, or next year will a bad J1.1 module mean a new battery?

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[2P168S]

Ahem - most of the range is from additional usable battery - 95lWh vs 83.9 kwh given the increased size.

 

[Talisker]

Playing devil's advocate: why should Porsche give you back something better than what you paid for?

Perhaps because the undertay on the Gen 1 was inadequate at protecting the battery. The Gen 2 undertray is much stronger due to the number of damaged batteries.

Whilst the £40K repair was covered by the insurance, I'll be paying increased insurance premiums for the next 5 years. To me it is beyond petty for Porsche to downgrade the Gen2 battery to Gen 1 range, through their inadequate design

 

[prj]

Perhaps because the undertay on the Gen 1 was inadequate at protecting the battery. The Gen 2 undertray is much stronger due to the number of damaged batteries.

Whilst the £40K repair was covered by the insurance, I'll be paying increased insurance premiums for the next 5 years. To me it is beyond petty for Porsche to downgrade the Gen2 battery to Gen 1 range, through their inadequate design

I don't think that will be the case, but only way to find out.

 

[chun]

My Gen 1 battery was damaged and is having to be replaced.
Yesterday I was told that the battery would be replaced with a Gen 2 battery - HAPPY DAYS !!!
However, today the dealership advised that although it is a Gen 2 battery, the vehicle is Gen 1 so it converts the battery (using the conversion kit) back to make it compatible with the vehicle. This means I won’t get the same range as the Gen 2 Taycan.
Apparently, it is the technology which is set by Porsche.

Can anyone explain why, other than generating sales of the Gen 2 car?

Keep us posted when you get your car back.

Would be great if you let @prj analyze the battery afterwards; as we would know for sure what they did and who knows, maybe even unlock whatever lock they put on the battery.

Many people already claimed to get a j2 battery, but none came back to confirm if it actually happened.

 

[W1NGE]

Interestibg for sure but marred by using WLTP as a measure which is lab based and wildly optimistic.

Is there a real world example...I'm guessing not?

I'll settle for the larger battery as the main (obvious) reason.

 

[MissionC]

I understand that mostly Porsche is replacing J1.1 modules, not the whole battery. What happens when they run out of J1.1 LG modules? Are the new modules backward compatible, or next year will a bad J1.1 module mean a new battery?

I'm getting several battery modules replaced now and will be asking this very question when I pick my car up (still no ETA on that due to a part stuck in customs in GA due to tariff paperwork). I doubt the issue will be running out of the battery cells that compromise the module - those aren't exotic and are still being manufactured by LG. What I don't know is whether a majority of the battery repairs for US J1.1s have been full battery swaps or module replacements. I'm sure that's determined by the number of bad modules and more extensive training on module swaps, which looks to be a more involved repair than a battery swap, but ¯\_(ツ)_/¯

 

[Boss Hogg]

Interestibg for sure but marred by using WLTP as a measure which is lab based and wildly optimistic.

Is there a real world example...I'm guessing not?

I'll settle for the larger battery as the main (obvious) reason.

this is a % difference, the base will likely be WLTP too. I'm now 17k miles in J1.2, driving the same daily routes as my J1.1, the efficiency gains are real and comfortably +15%

 

[Avantgarde]

How do you know it is the efficiency gains but not the battery size?

this is a % difference, the base will likely be WLTP too. I'm now 17k miles in J1.2, driving the same daily routes as my J1.1, the efficiency gains are real and comfortably +15%

 

[Avantgarde]

Interestibg for sure but marred by using WLTP as a measure which is lab based and wildly optimistic.

Is there a real world example...I'm guessing not?

I'll settle for the larger battery as the main (obvious) reason.

I have a gen1 rwd PB+ and got a gen 2 PB as a loaner for a week, which on paper should have a longer range, but did not feel this is the case at all. I suspect most of what Porsche calls as “overall efficiency gains” in the chart above is the removal of their own sandbag with the first gen official range. My personal guesstimate of the real world difference between gen 1 and gen 2 is about 15-20% and great majority of that improvement seems to be battery size and rest (max 5%) due to uglier headlights, uglier wheels and maybe some slight efficienty gains from new motors.

 

[RSouthern]

I noticed that rolling resistance and aero was almost as much of a factor (11%) as the battery (14%), so are there different tires on the J1.2? If so, that could also be something that the J1.1 owners could take advantage of. That and the more aero wheels with a bigger battery and the J1.1 should be very close to the new range. Maybe?

 

[W1NGE]

I have a gen1 rwd PB+ and got a gen 2 PB as a loaner for a week, which on paper should have a longer range, but did not feel this is the case at all. I suspect most of what Porsche calls as “overall efficiency gains” in the chart above is the removal of their own sandbag with the first gen official range. My personal guesstimate of the real world difference between gen 1 and gen 2 is about 15-20% and great majority of that improvement seems to be battery size and rest (max 5%) due to uglier headlights, uglier wheels and maybe some slight efficienty gains from new motors.

All J1.2 cars have PB+

 

[prj]

I noticed that rolling resistance and aero was almost as much of a factor (11%) as the battery (14%), so are there different tires on the J1.2? If so, that could also be something that the J1.1 owners could take advantage of. That and the more aero wheels with a bigger battery and the J1.1 should be very close to the new range. Maybe?

There are some more range optimized 21" wheels. They have Hankook iON tyres on them and they are narrower (same width as a 20" wheel). Porsche does not recommend them for the track, but claims that they increase range.

Specifically they are available for the Turbo S. So I am sure that because there's the Turbo S in that graph, then the rolling resistance part of it, is due to those wheels.

Aero however is a different story, I think they squeezed a little more out of the body.

The part number is 9J1073663AA.
245/40 R21 in the front and 285/35 R21 in the back, whereas the normal width 21" have 265/40 and 305/30 accordingly.

 

[Avantgarde]

All J1.2 cars have PB+

Not sure what you mean. This is not true for RWD and 4S. PB+ is still an option for those.

 

[W1NGE]

Not sure what you mean. This is not true for RWD and 4S. PB+ is still an option for those.

Not in UK all J1.2s have PB+ and can't imagine NA or RoW any different- this was one of the key facelift changes...hence the extra range.

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