[Jeffterry]

The exceptions to all of that are the 2019 US cars involved in recall H484 where the owners opted and got full replacement batteries. Nit picking: it's 72% not 73%.

I will not be having H514 applied to my car. If the car goes in for some other matter, I will explicitly tell them that I opt out. Yes, one can opt out of a recall. Dealers are only required to apply recalls if they are selling the car, not if they are repairing it. Besides, I have a scan tool that can perform testing (there's another thread) that gives me confidence that I don't need to limit charging to 80%. I'll wait to see what the final solution is rather than get limited to 80% and then have another go at some unknown future date for a battery replacement or software update or whatever.

@rcomeau H514 does not apply to Canada cars. US & territories only. It won't show up for you. It's baffling. Same parts but no recall.

Hi, mines a 2019 car, and it still charges to 100% just over 400 k’s. It has been in for soft updates due to fire risks. Are you talking just USA for 80% limit? All seems very quiet here (NZ) about problems. Any comments from your knowledge Ayepace?

 

[dernotte]

From what I can see, the "Hybrid/EV Moving Average Voltage Deviation Exceedance Threshold" data in the BECM is "probably" used (among others) to determine if a cell is faulty of not (stored in the "Hybrid/EV Battery Voltage deviation Diagnosis 1"), and because I monitor those data since a couple of months, I can tell that they are not moving fast, so a sample rate of once a day would be more that enough, according to me, to start with. Having that information for every single iPace produced would be a very valuable data for investigation, at very low cost.

 

[MobiusPizza]

I think the basic permises is the previous software may not be effective enough for whatever technical reason, and they issue another recall to update the software.

The question is what does this new software do. Will it do active mitigation (limit charge to 80% regardless of whether anything abnormal has been detected) and buy time for them to plan for module/pack replacement/more robust future software. Or it would continue the passive monitoring without action as previous version does, and only intervene (limit charge to 72%/80%) when issues are detected. It would be the same situation we have---once the new software identify a problematic cell/module, that module should be replaced.

 

[MobiusPizza]

From what I can see, the "Hybrid/EV Moving Average Voltage Deviation Exceedance Threshold" data in the BECM is "probably" used (among others) to determine if a cell is faulty of not (stored in the "Hybrid/EV Battery Voltage deviation Diagnosis 1"), and because I monitor those data since a couple of months, I can tell that they are not moving fast, so a sample rate of once a day would be more that enough, according to me, to start with. Having that information for every single iPace produced would be a very valuable data for investigation, at very low cost.

Interesting, so the software is basically monitoring a single cell string voltage and compare its moving average value versus all other cells in the pack. If any cell voltage deviates more and more from the population, it can indicate that cell has elvated self-discharge and could be caused by soft-shortcircuit due to folded tabs.

 

[Ayepace]

I think the basic permises is the previous software may not be effective enough for whatever technical reason, and they issue another recall to update the software.

The question is what does this new software do. Will it do active mitigation (limit charge to 80% regardless of whether anything abnormal has been detected) and buy time for them to plan for module/pack replacement/more robust future software. Or it would continue the passive monitoring without action as previous version does, and only intervene (limit charge to 72%/80%) when issues are detected. It would be the same situation we have---once the new software identify a problematic cell/module, that module should be replaced.

There is no question. Please read the recall letter you received and other recalls documents posted.

 

[dernotte]

.

 

[dernotte]

Interesting, so the software is basically monitoring a single cell string voltage and compare its moving average value versus all other cells in the pack. If any cell voltage deviates more and more from the population, it can indicate that cell has elvated self-discharge and could be caused by soft-shortcircuit due to folded tabs.

No, the software is monitoring 36 cells voltage and deviation individually, and on each cell it is monitoring the 3 subdivision of cell (the 3S in the 4P3S architecture).

 

[rcomeau]

Quick question: has anyone, whose charge is limited to 80%, gone on to get a traction battery error (bad module detected)? Meaning has any bad cell ever been detected with the car’s state of charge below 80%? Just curious.

 

[Trielectric]

From what I have heard, the temporary limit to 80% is not out yet. They experimented on my car by tripping it back to 72% and I called a foul, that I reported to the Feds. My dealer told me they would be meeting with Jaguar as to how they would change the 72% up to 80% in the next week or 2 once the software was available.

 

[Ayepace]

Dealers have only just received instructions for updating the BECM with the update. See my previous post. It is too soon for anyone to have it and get any results besides frustration for having limited charging.

 

[JagIpaceInt]

Stay away

Thanks a lot!! I ended up getting a 2020 IPace. I am based in California and I can return the car in 48 hrs if I am not satisfied . I Charged to 100% (it shows 225 miles) with no issues. I have already driven 150 miles with no problems. I still have 24 hrs to test it out. Planning to try fast charger next. Anything else I should try?

 

[rcomeau]

Dealers have only just received instructions for updating the BECM with the update. See my previous post. It is too soon for anyone to have it and get any results besides frustration for having limited charging.

I thought the original recall of select 2019s that offer a new pack actually limit charging (as opposed to asking).

 

[Ayepace]

Original recall H441 and its revisions (and related recalls due to improper installs) detected cell module faults and limited charging to 72% if any were found. A limit of 7 defective cell modules would initiate a full battery replacement.

H514 updates the BECM to limit charging to 80% without anything else considered. It will take a future update to all H514 cars to charge beyond 80%. It doesn't matter if any defective cell modules exist in the battery or not.

H484 was for select 2019s getting replacement batteries, car buyback, or replacement car deals, even if no faults were found to date.

 

[Photon2.0eV]

Has there ever been any documentation indicating the date LG modified their batteries to prevent a thermal overload? Do newer models have the H441 software installed to detect defective modules/cells as a precaution for the new modified battery packs?

 

[rcomeau]

Original recall H441 and its revisions (and related recalls due to improper installs) detected cell module faults and limited charging to 72% if any were found. A limit of 7 defective cell modules would initiate a full battery replacement.

H514 updates the BECM to limit charging to 80% without anything else considered. It will take a future update to all H514 cars to charge beyond 80%. It doesn't matter if any defective cell modules exist in the battery or not.

H484 was for select 2019s getting replacement batteries, car buyback, or replacement car deals, even if no faults were found to date.

My curiosity was if anyone whose charging were limited to 80% (H514) has gone on to get a module failure alert anyway (I presume that the original H441 monitoring was still active).

 

[Ayepace]

Yes, H441 (probably early version) started getting installed back circa May 2023. The date was mentioned in the recall paperwork that came out back then.

As for physically fixing that all pouches were not produced with the defective anodes, we can't be certain. The same factory produced defective batteries for the Taycan until 4 March 2024. Clearly they were still being manufactured so who knows if they made their way into JLR products.

 

[gtquan]

Has there ever been any documentation indicating the date LG modified their batteries to prevent a thermal overload? Do newer models have the H441 software installed to detect defective modules/cells as a precaution for the new modified battery packs?

My 2023 has had 3 bad modules replaced so far this year.

 

[pbmusic]

My 2019 is back in the shop because it won't charge at level 2 (level 3 is fine, might be something with the port), and it's getting the H514 downgrade while it's in there. This after being in the shop or three months over the summer (front wiring harness etc). Yesterday, JLR offered to buy the car from me at high Blue Book, which isn't going to cut it. But before I counter, should I throw in the towel on the iPace or try to get a newer example? I love everything about it when it works. Does anybody know whether the 2023s and 2024s were revised in a way that protects against the problems we're seeing in the 2019s (and apparently some 2020s also), or is it just a matter of age?

Thanks

P

 

[bitzerj]

Mine 2019 HSC was neutered yesterday. I charged it last night...to 80% and the range was a whopping 206 miles. I'm soooo happy at the moment.

 

[Trielectric]

I read today that LG is building 2 battery plants in the US soon. One of them will make big cylindrical cells. & one of them will make batteries for Mach Es. They did not mention if this Ford supporting plant will be making the contained pouch cells or cylindrical cells.