What's the problem of charging your truck to 100% instead of 80% once in a while?

[ScouterJohn]

BULL!

There may be slowing of some of the older Model Ss with problematic batteries, but my 6_ year old Model 3 charges just as fast as it ever has. Actually it charges about 30% faster now than it did when new. That's because there was no 250kW chargers then

I should know better than to poke you, but my 2015 S definitely charged slower in it's later years! I'm happy if they don't do that to other models since those are all i have now. Thank you for the insights!

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[Woodrick]

I should know better than to poke you, but my 2015 S definitely charged slower in it's later years! I'm happy if they don't do that to other models since those are all i have now. Thank you for the insights!

Not sure if this applies

Old 85 kWh Tesla Model S Battery Packs Suffer From Reduced Charging Speed (insideevs.com)

I just don't to see Social Media pickup on your statement and start an uproar.

 

[ScouterJohn]

I have never had good luck with scheduled charges over 95%. They always ended before I wanted them to be done. Like hours. I tend to babysit post 95% as I pack up, or wake up to leave. Leaving



I have pretty much mastered Tesla-Fi and my car sleeping. From there you can see the number of charges, where, what percent, what temp. I have all of them. I also look at some other data as well.

In the last 65k I actually am up about half of one percent. I have one year end of the month on warranty. Really trying for 400k.

I still can hit 190Kw on a 250Kw charger. Much faster than when I bought it new. Also still charges at 100Kw at 50% SOC at a SC. I don't know I can still travel solo 1257 miles in 24 hours in my old 100D. Even with new charging I think maybe 1400 is possible at real level 3.

Hey yeah I love numbers. Hated statistics so much I loved it , is my favorite thing in the world.
Currently compiling data from when I was younger with my aging father. Have to see when I get to 2 million miles driven.

I see what you did there on the ANAL. ? So clever. Must be the Scout in you.

Cool info; thank you!

I don't travel anywhere near that far in 24 hours! I don't work for pay anymore so I just take my time.

And I've enabled 102 youth to earn the rank of Eagle since becoming a Scoutmaster; that I track very carefully! LOL

 

[ScouterJohn]

Not sure if this applies

Old 85 kWh Tesla Model S Battery Packs Suffer From Reduced Charging Speed (insideevs.com)

I just don't to see Social Media pickup on your statement and start an uproar.

Oh great point; thanks. It was a 70D but was caught up in the buffer adjustments/battery issues where my range dropped, a bunch of smarter users complained, and then my range went back up. I didn't much care cause I had free unlimited supercharging and by that time, there were plenty of superchargers.

 

[Woodrick]

Oh great point; thanks. It was a 70D but was caught up in the buffer adjustments/battery issues where my range dropped, a bunch of smarter users complained, and then my range went back up. I didn't much care cause I had free unlimited supercharging and by that time, there were plenty of superchargers.

That's why in my first post, I specifically excluded the older Model Ss. I don't keep up with the intricacies of the batteries and models, just knew there were definitely some issues and upset drivers.
But AFAIK, it hasn't appeared on the Model 3 or Model Y, both of which are getting some vehicles with well used batteries.

 

[Outdoors]

Cool info; thank you!

I don't travel anywhere near that far in 24 hours! I don't work for pay anymore so I just take my time.

And I've enabled 102 youth to earn the rank of Eagle since becoming a Scoutmaster; that I track very carefully! LOL

I do the 24 hour thing with some other folks on TMC. Some of the couple high # of supercharger people. We see each other all over the country. I usually have my packraft helmet and am ready to hit whitewater.

Cool. After I got mine I stopped at one palm. I went on a 27 day open canoe trip to Hudson Bay instead of getting more palms. Hanging out in a real local lodge tepee with elders before the float plane flying in. Seeing polar bears from an aluminum boat with 2 people in it.

Thanks for what you do for helping youth. They truly are our future.

 

[Crissa]

I should know better than to poke you, but my 2015 S definitely charged slower in it's later years! I'm happy if they don't do that to other models since those are all i have now. Thank you for the insights!

A good deal of that is probably just battery pack internal resistance grows as the pack ages... And the efficiency of cooling systems reduces.

Even if they don't intentionally lower your speeds - the charging curve is bent to respond to pack temperature.

-Crissa

 

[ScouterJohn]

I do the 24 hour thing with some other folks on TMC. Some of the couple high # of supercharger people. We see each other all over the country. I usually have my packraft helmet and am ready to hit whitewater.

Cool. After I got mine I stopped at one palm. I went on a 27 day open canoe trip to Hudson Bay instead of getting more palms. Hanging out in a real local lodge tepee with elders before the float plane flying in. Seeing polar bears from an aluminum boat with 2 people in it.

Thanks for what you do for helping youth. They truly are our future.

Scouting is the only responsible thing I do now; just home from an Eagle Project where we recharged the cordless tool batteries in the CT.

I had a young lady earn 11 palms! The Troop has 93 Scouts; it may as well be a full-time gig.

 

[Woodrick]

A good deal of that is probably just battery pack internal resistance grows as the pack ages... And the efficiency of cooling systems reduces.

Even if they don't intentionally lower your speeds - the charging curve is bent to respond to pack temperature.

-Crissa

There has been no evidence of that with the newer batteries.

The Plaid folks do notice a slight degradation of times when launching the vehicle in drag strip mode.

But everyone that supports 250kW charging still does it. And no significant difference in charging times.

 

[jookyone]

From the Tesla paper quoted earlier:

" We estimate that a vehicle gets scrapped after approximately 200,000 miles of usage in the U.S. and roughly 150,000 miles in Europe. Even after 200,000 miles of usage, our batteries in Model 3 and Model Y lose just 15% of their capacity on average, while batteries in Model S and Model X lose just 12% of their capacity on average."

Assuming ICE vehicles are truly being scrapped at 200k miles that is a 100% degradation.

 

[CyberGus]

There has been no evidence of that with the newer batteries.

There is no evidence that the 4680s behave any differently than cells with similar chemistries.

 

[CTMike]

I see many opinions about charging for a trip. One question/answer I have not seen is whether it is ok to charge up to 100% at each stop on a 500 mile trip, being that I would be driving immediately after the charge. Or would the time to go from 80% to 100% not be worth the wait? I understand the charging can be reasonably fast to 80%, but what about going to 90%? How much longer would that take?

 

[CTMike]

I also notice no one has answered this question... as you are charging at a 250kw station, it can start at 250kw, and slowly slow down to 100kw or so as it get close to 80%. Is that automatic with the percentage or just with that station. If you were to plug into a different station at say, 70%, would it start off at 250kw at that point, and then work its way down from there?

 

[CyberGus]

I also notice no one has answered this question... as you are charging at a 250kw station, it can start at 250kw, and slowly slow down to 100kw or so as it get close to 80%. Is that automatic with the percentage or just with that station. If you were to plug into a different station at say, 70%, would it start off at 250kw at that point, and then work its way down from there?

The charge rate is a curve. You would only get 250kW when at a very low SoC, and the rate gradually lowers as the SoC increases.

There's a dramatic dropoff at 80-90%. It can take longer to go from 80% to 100% than it did to get to 80%. It's also considered rude to occupy the stall for that long when there are people waiting.

So, go ahead and charge to 100% if you're delaying anyway, like stopping for a meal. However, it is generally faster to depart when you recover to 80%, and charge more frequently.

 

[Woodrick]

I see many opinions about charging for a trip. One question/answer I have not seen is whether it is ok to charge up to 100% at each stop on a 500 mile trip, being that I would be driving immediately after the charge. Or would the time to go from 80% to 100% not be worth the wait? I understand the charging can be reasonably fast to 80%, but what about going to 90%? How much longer would that take?

No, it is definitely not recommended, and it is absolutely the slowest way to get from point to point.

It takes longer to go from 80% to 100% than it does 0% to 80%.

Let the vehicle nav make the recommendations until you have more experience. If for some reason it created a stupid sounding solution, like charging to 100%, just get it to recalculate again.

And even for the stops that the nav chooses, look plus or minus a stop and see if you like it better. It may have better food or facilities. If there is one that you like better, add it as a waypoint and the nav will recalculate.

There are so many Supercharges out there in the majority of the populated parts of the country, that you can easily pick and choose.

Charge to 100% twice for a 500-mile trip and charging will take you about 3 hours. The nave will probably only suggest about an hour.

Contrary to what newbies believe, the lower your battery goes and the more you stop, the faster you go!

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