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How Safe is the replacement tractio battery?

3.6K views 30 replies 16 participants last post by  EV-GT  
#1 ·
I go the replacement traction battery on my 2019 IPace. My question is is it actually safer than the old one? Need to know if I still need to take measures to avoid damage from fires.
 
#2 ·
Yeah. Fires will always cause damage.🙂

If you are talking battery replacement, then I assume you are part of the H484 recall. Otherwise that is not an option. There are plenty of threads discussing this issue and affected owners views.

A quick search of the forum will help you decide if the newer model years are any less prone to thermal issues. Bear in mind only a handful of vehicles have actually caught fire out of ~80k produced.

[SPOILER ALERT: Nobody knows. There is no solid evidence one way or the other.]
 
#9 ·
Therein lies society's problem with risk assessment.

Your 6 months of trouble free motoring (no fire) is statistically irrelevant compated to on average 3-4yrs across the the whole fleet of 80k I-Paces worldwide.

If on the other hand you are suggesting that 6 months of driving without getting a "traction battery fault induced charging restriction" is significant regarding the safety issue, you should check out the number of replaced modules and/or batteries compared to the number that have actually failed and caught fire.

Bottomline: I doubt even LG could prove within some statistical level of confidence (say 90%) that the 2024 batteries are less likely to catch fire than the 2019 batteries.
 
#11 ·
Well if they identified and remediated a manufacturing defect I think they probably have better data…
Well, I would tend to agree assuming that they knew what had actually caused the dozen or so fires. They have identified a manufacturing "defect". JLR has written software that detects issues. And yet the number of battery module "failures" vastly outnumber the cases of actual fires.

Being conservative and flagging any battery with abnormal parameters with their safety response is to be applauded regarding JLR, but shouldn't be confused with actually being able to predict which batteries will go up in flames. Furthermore, with all cars now running the H441 software, future statistics will not be comparable to instances of fire in the 2019-2023 period.

Sorry for the doom and gloom, but this is just an honest assessment of the statistics available on these cars.
 
#12 ·
Well, I would tend to agree assuming that they knew what had actually caused the dozen or so fires. They have identified a manufacturing "defect". JLR has written software that detects issues. And yet the number of battery module "failures" vastly outnumber the cases of actual fires.

Being conservative and flagging any battery with abnormal parameters with their safety response is to be applauded regarding JLR, but shouldn't be confused with actually being able to predict which batteries will go up in flames. Furthermore, with all cars now running the H441 software, future statistics will not be comparable to instances of fire in the 2019-2023 period.

Sorry for the doom and gloom, but this is just an honest assessment of the statistics available on these cars.
Yes I agree, on reflection nobody has directly been able to link the defect(s) - I have heard of a couple of them, with a root cause of the fire(s). They may be unrelated. However on balance it seems ICE vehicles are just as likely to set themselves alight based on statistics. Lies, damned lies and statistics said someone once....
As someone else pointed out, everything is a risk. You choose your life accordingly.
 
#14 ·
How safe? I never park inside/underneath any structure. How about some data. Keep in mind that probably most I-pace fires happen while the car is parked and the rest of the data would include collisions, maintenance, refueling etc. My best estimate using the best data I could find: Note: NHTSA does not track type of drivetrain in their data currently. Any BEV data claiming them as a source in the year 2025 is false. I am normalizing to Fires Per Year Per Ten Thousand Vehicles and keeping the numbers to two digits to conform to South Korean data (the best data separated by drivetrain I could find).

South Korea ICE 1.9 FPYPTTV
South Korea BEV 1.3 FPYPTTV

USA all type of vehicles 1.4 FPYPTTV

The approximate 6 month period between US recalls for 2019 Jaguar I-pace: 1.8 FPYPTTV
 
#15 ·
How safe? I never park inside/underneath any structure. How about some data. Keep in mind that probably most I-pace fires happen while the car is parked and the rest of the data would include collisions, maintenance, refueling etc. My best estimate using the best data I could find: Note: NHTSA does not track type of drivetrain in their data currently. Any BEV data claiming them as a source in the year 2025 is false. I am normalizing to Fires Per Year Per Ten Thousand Vehicles and keeping the numbers to two digits to conform to South Korean data (the best data separated by drivetrain I could find).

South Korea ICE 1.9 FPYPTTV
South Korea BEV 1.3 FPYPTTV

USA all type of vehicles 1.4 FPYPTTV

The approximate 6 month period between US recalls for 2019 Jaguar I-pace: 1.8 FPYPTTV
That seems high a little high, but may be in the ball park.

For the I-Pace, I believe JLR has acknowledged 12 fires across the whole fleet.

Assuming an average age of 3yrs for the ~80k vehicles in the I-Pace fleet that gives

12/3 fires per year/8 (8x 10k vehicles) = 0.5

Put another way 0.005% of cars will burst into flames this year,

Put another way, there is a 50% chance your I-Pace will spontaneously burst into flames over the next 14,000yrs. 🙁
 
#16 ·
@Qtown charger
Your numbers look good to me. I was giving the worst case example (which is still really low) for only the 2019’s based on solid numbers I could find. The slightly above average number over that short term could have sent Jaguar into overreacting and recalling all 2019’s. If one looks only at 2019’s over the last 365 days the number would be below the national average for the USA. I used 2019’s in my example as they are closer in age to the average age of US vehicles on the road.
 
#17 · (Edited)
Agreed. Your numbers were good. With this small number of fires the statistics are all over the place, and there is no chance of defining the risk precisely. However, I just wanted to put out some perspective on the risks we are facing. Even your numbers give us all a 50% chance of reaching almost 4,000yrs.
 
#29 ·
Lets put it another way. If you car is several years old, you've done plent mileage,
you fastcharged to 100% plenty of times ; my guess is you're safe. If it was going
to pop, it would have by now.. ;)