Lifespan of ER vs. SR batteries

[JPro]

So I heard/read somewhere that batteries lifespans can be measured in charging cycles. If that is true, it seems to me that the ER truck should theoretically be more capable of longer/higher mileage lifespan without a battery replacement. My knowledge of battery technology is superficial at best but I know there are some experts in this forum, interested in others takes on this.

For instance 1000 charging cycles on an ER would put 320,000 miles on an ER, but only 230,000 on a SR truck, based on stated ranges anyway

Go!

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[Grumpy2]

It seems the life of the battery may essentially be until you get bored with it if you treat it right.
I recommend search & read the posts by MickeyAO. He has provided abundant information on charging cycles and abuse of batteries.

 

[Maxx]

battery dies a few days after warranty is over, regardless of pack size.

‘There are different factors to consider with different amount of weight to each.

If you plan to get 50 miles out of each charge, that is a smaller depth of discharge on a large pack so you get slightly more cycles but having more cells statistically means higher risk of one of your cells failing.

I think, price, how much long distance travel you do, weight of the truck/payload, …. and other factors that have impact on your use should have a larger weight.

 

[chl]

So I heard/read somewhere that batteries lifespans can be measured in charging cycles. If that is true, it seems to me that the ER truck should theoretically be more capable of longer/higher mileage lifespan without a battery replacement. My knowledge of battery technology is superficial at best but I know there are some experts in this forum, interested in others takes on this.

For instance 1000 charging cycles on an ER would put 320,000 miles on an ER, but only 230,000 on a SR truck, based on stated ranges anyway

Go!

First, consider what the assumptions regarding the 1000 charging cycles are? Those EPA or Ford ranges are estimates and will vary greatly.

The miles per kilowatt will vary a lot depending on whether you are towing something, on the highway vs local streets, driving aggressively or like a little old lady, etc.

And lifespan is more complicated than just how many charge/discharge cycles, although that is one factor.

If I was going to drive a lot of miles beyond the average US driver which is somewhere around 12k per year, I'd probably want to lease rather than buy because of the battery degradation issues I'd encounter, assuming I was doing a lot of fast DC charging on long trips.

Using the 12k average per years driven, the example of 230,000 miles for the SR battery is almost 20 years! The 320k is about 6 or 7 years longer. So if one doesn't drive a lot more than the average, on long trips, it is hard to justify the ER battery costs in my book (at my age if I live 20 more, I'll be happy).

An very important factor affecting lifespan is related to battery temperature - fast DC charging will put more heat stress on the battery than slow L2 charging, for example.

Charging when the battery is already 'hot' will stress it which is why 'they' always recommend letting the battery cool down after driving around before charging.

Even with active cooling, there is a limit to how much active cooling can do.

Early Nissan Leaf's did not have any active cooling, and owners in very hot climates (AZ, CA) had early battery degradation issues as a result.

That said, there are plenty of older EVs (e.g., Tesla's and Nissan Leaf's) out there still running on their first Li battery - age is apparently not as significant a factor as they used to think, it more about use - that is, the type of charge cycles as well as how many, ambient temperature, the way the vehicle is driven, etc.

 

[BlueLightning]

In layman terms.

Charge only every two to three days depending on driving conditions. Always use 110-220v and never any supercharger. Those kill life of the battery quicker than expected. But each battery pack has lifespan of its own and unique lifecycle makeup per owner and how they charge and drive.

Like harmful triglycerides to the body, people don’t know they are harming them slowly over time, but some quicker than others depending on lack of diet and exercise.

 

[StrikesTwice]

In layman terms.

Charge only every two to three days depending on driving conditions. Always use 110-220v and never any supercharger. Those kill life of the battery quicker than expected. But each battery pack has lifespan of its own and unique lifecycle makeup per owner and how they charge and drive.

Like harmful triglycerides to the body, people don’t know they are harming them slowly over time, but some quicker than others depending on lack of diet and exercise.

Whether you charge 20% nightly or 60% every third night makes no difference…it’s the same amount of battery cycled.

It’s anecdotal, but the more you read about it, the more you realize that the harmful effects of DC fast charging have been greatly exaggerated. There are a lot of abused, high-mileages teslas out there with minimal degradation. The effort to avoid dc charging may not be worth the squeeze.

If you just charge your truck regularly, at home, when it’s convenient…to a reasonable percentage that fits your lifestyle, minimize your dc charging when it’s needed, and maintain your truck per ford’s recommendations….its going to last a long time and should be a pleasurable ownership. Don’t sweat the details.

 

[BlueLightning]

Whether you charge 20% nightly or 60% every third night makes no difference…it’s the same amount of battery cycled.

It’s anecdotal, but the more you read about it, the more you realize that the harmful effects of DC fast charging have been greatly exaggerated. There are a lot of abused, high-mileages teslas out there with minimal degradation. The effort to avoid dc charging may not be worth the squeeze.

If you just charge your truck regularly, at home, when it’s convenient…to a reasonable percentage that fits your lifestyle, minimize your dc charging when it’s needed, and maintain your truck per ford’s recommendations….its going to last a long time and should be a pleasurable ownership. Don’t sweat the details.

Yes, not to experienced with Ford yet, the advice I had was from owning a used 2018 Model 3 LR. I would charge at Superchargers as needed for trips but did see a little battery degradation topping off. So mostly just charged daily or once every few days in the summer. Take care.

 

[JPro]

I have to imagine that unless your Kyle Connor with Out of Spec, most people charge a majority at home as opposed to DC fast charging. I was just wondering all factors being equal, theoretically if the ER truck is more likely of going say 400,000 miles, I’m currently driving 20k per year, the SR currently suits my needs just fine but was just wondering if it was a tradeoff in longevity.

 

[invertedspear]

I mean, all things being equal, if your driving is 100% the same regardless of which range you chose, baring some random ass defect, the ER is going to have a longer lifespan than the SR.

But we don't really know what to expect on average yet, because the oldest Lightnings are not really old enough yet to project much.

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