SSM 55111 Reduced Driving Range due to Possible Battery Cell Issue

[RickLightning]

2 years for $4,452....

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[Grumpy2]

FORD knows more about our individual truck battery than anyone else. FORD also wants to have subscriptions be a big part of their future.

It seems logical that FORD could offer a subscription (insurance) for battery replacement.

Demand an Upfront payment ($3-5k) for another 4 to 8 years of ownership based on the battery's condition at the 8 year/100k mark.

I would be interested ... maybe....

 

[Free Charging]

FORD knows more about our individual truck battery than anyone else. FORD also wants to have subscriptions be a big part of their future.

It seems logical that FORD could offer a subscription (insurance) for battery replacement.

Demand an Upfront payment ($3-5k) for another 4 to 8 years of ownership based on the battery's condition at the 8 year/100k mark.

I would be interested ... maybe....

This SSM's expansion to all model years isn't confidence inspiring. Ford really needs to extend out the mileage and time on these warranties, and I don't think a paid option should be the primary method of doing that.

 

[Free Charging]

see this site for Battery only coverage with $500 deductible...looks like about $4000 for coverage until 2036
https://www.xcelerateauto.com/xcare
"Its high-voltage battery and drive-unit coverage generally requires the vehicle to be less than 7 years old and under 100,000 miles when purchased. Older EVs may still qualify for coverage on other components, but not the battery."
but not sure what happens to costs if already at 7+ years, 90K miles.
So, I put in for a 2021 Mach-E with 90K miles and it gives COVERAGE UNTIL SEP. 2036 or 240,000 miles $4,452
Term length: 10 years / 150,000 miles
So maybe there is some hope?

I quoted through to be able to read the contract and there are some nuances that would be very relevant to a Lightning.

First off, the $25k aggregate cap for the EV battery coverage. In theory that's several modules, so that seems fine, though it's less than the $30k they lead the marketing with.

But when defining coverage and exclusions, the components listed as covered are singular, but trying to think of this in terms of Lightning specific failures.

Ford services these pack by replacing modules individually (drop the tray, swap module 7, leave the other 8 alone).

Does that mean that a failure of module 7 exhausts coverage on module 7 only? And modules 1–6 and 8–9 remain covered? Or the failure of any module uses the entire coverage event for the battery as a holistic component?

But probably most significantly, the breakdown appears to be defined in terms of degradation, so it would be a real coin flip if failures like SSM 55111 would even be covered? Or really in what scenarios a Lightning would EVER be covered? Since the max pack capacity and health are usually close to 100% health even with a failed cell, you just can't charge the truck well with that bad cell.

It's also a bit confusing why they mention not having to pay deductibles again for repeat repairs of a component, if repeat repairs are excluded.

 

[GoodSam]

2 years for $4,452....

I think extending to 2036 would be 15 years total on the 2021 Mach-E?

 

[TwentyTwentyThree]

Ya. That is how mine shat the bed.

 

[Henry Ford]

Originally for the 2022-23s Ford issued a 4% of EVs for one or more HV modules to be replaced. I had the Ford recall before any failures of having 3 of the 9 SR modules replaced. But it seems to me, without any real stats, that at least 10% of trucks have been in for battery module replacements that probably cost $4000 for the parts and another $2000 for labor? $6K to keep the Lightning going? Or will the hassle of other possible failures of coolant valves, motors, converters, a/c, add to the $ pain of trying (with poor dealers and part delays) to keep this amazing vehicle going? See my spreadsheet in my signature for tracking of reported battery module replacements.

I may or may not be on your spreadsheet. I had a module failure with no DTCs last year. I wrote about somewhere on this website.

Have you done any regression analysis on your data? I'm curious if mileage has any bearing on failure. There probably isn't enough data to target any other variable... maybe build date?

 

[jetfixr1]

Well, I will definitely be charging to 100% every quarter or so to make sure my cells are good. With 62K miles on the clock, my HVB seems to be in good shape.

 

[Zprime29]

Well, I will definitely be charging to 100% every quarter or so to make sure my cells are good. With 62K miles on the clock, my HVB seems to be in good shape.

Did you happen to also note what it reported as the usable capacity in kWh?

 

[jetfixr1]

Did you happen to also note what it reported as the usable capacity in kWh?

 

[Zprime29]

Thanks, I'm still trying to make sense of the relationship between usable in kWh, BECM reported Ah, and SOH. When I last charged to 100% I was able to get 131 kWh but my SOH was 95%. Unfortunately I didn't record the BECM measurement to get a full comparison. The claim is that SOH is the % of BECM measurement to max at new. But what I don't understand is how that could be lower and still achieve the max usable energy. I guess I need to charge to 100% again.

I refuse to believe the alternative that Ford is releasing buffer to maintain usable. That would be a dangerous precedent.

 

[blb228]

I can't help but think how much fun these young developers are having with us......

 

[Free Charging]

Did you happen to also note what it reported as the usable capacity in kWh?

Here’s mine at 100% this afternoon.

 

[Zprime29]

Here’s mine at 100% this afternoon.

Slightly lower SOH, yet same full energy to empty. Does your app also show the BECM measurement? I keep forgetting to check mine, but I haven't seen it in the PID default list. I'm guessing I just am not looking in the right spot.

 

[Free Charging]

Slightly lower SOH, yet same full energy to empty. Does your app also show the BECM measurement? I keep forgetting to check mine, but I haven't seen it in the PID default list. I'm guessing I just am not looking in the right spot.

Here's are the metrics when I had a bad module. Exhibited the symptoms of this SSM and wouldn't charge past 88%.

SOH with the bad module was still reporting as 98%, so I think it's actually a pretty meaningless metric to pull.

CarScanner reported Energy to empty was 115.64 kWh. BECM Battery Capacity was 388.8 Ah. Module variation was 0.06 V / 6.46%.

FDRS also reported SOH at 98%, and the bad cell was 82. (I brought it in to the dealer at ~25% SOC and they charged it up to ~43% where they took their measurements)

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