2015-17 Dual Motor S charging rate

[4hourrule]

I have heard and read the Posts about rolling back the Charge rates of 85 KW Batt Packs from earlier years but have not seen any comments about 70,75,and 90 Packs. We're they all sent the update that slowed Charging. If so, how much are we talking? I'm Retired and am looking to get 1st EV for trips and Tesla still has best SCharge structure. Don't mind longer Trips timewise to Charge but don't want to sit at Charger for an hour to Drive 2 hours.
I am looking at 2015-17 Duel Motor S since prices are low and $4000 cash from Government. Even if Car needs Batt down the road I'm OK with that since Aluminum body I don't have to worry about Rust. We keep our Cars for 15 years plus and being X Master Tech I d most work myself (not HV or software).
Thanks in advance.
P.S. I did check for other Posts but not exactly answers I needed

 

[NV Ray]

I have heard and read the Posts about rolling back the Charge rates of 85 KW Batt Packs from earlier years but have not seen any comments about 70,75,and 90 Packs. We're they all sent the update that slowed Charging. If so, how much are we talking? I'm Retired and am looking to get 1st EV for trips and Tesla still has best SCharge structure. Don't mind longer Trips timewise to Charge but don't want to sit at Charger for an hour to Drive 2 hours.
I am looking at 2015-17 Duel Motor S since prices are low and $4000 cash from Government. Even if Car needs Batt down the road I'm OK with that since Aluminum body I don't have to worry about Rust. We keep our Cars for 15 years plus and being X Master Tech I d most work myself (not HV or software).
Thanks in advance.
P.S. I did check for other Posts but not exactly answers I needed

I can't answer your question about 70,75, and 90 packs being nerfed. However, not everything is an aluminum body. Pics are from 2012/3 MS from the Chicago area. Not sure if 2015-17 MSs changed.

 

[GSP]

@4hourrule -

Some of the early MS had their charge rates nerfed more than others. It might have been ones with more DC charging vs. AC, but I am not sure about that. Maybe ask previous owner about charge rates, and have the car checked with "scan my tesla" or other scan tool, and review total kWh throughput, and how much was DC.

My 2015 Model S had reduced supercharging at 7 years old vs. new, but not as bad as some others reported here at TMC. It would peak at 90-100 kW for a few seconds, then drop to 70-80 kW before tapering as SOC rose. I usually had about 20% SOC when supercharging was started. This was fast enough to be a comfortable road tripper, as long as I always supercharged during my 45-60 min meal stops, and 10-15 min bathroom stops.

Also look for BMS estimate of pack capacity. This can be done without tools, by looking at the energy screen Wh/mi and estimated miles to empty. Multiply the two to get Wh remaining in the battery, then divide by the SOC %/100 (ie. 54%/100 = 0.54) to get total pack capacity in Wh.

Good luck with you car shopping,

GSP

 

[cwerdna]

Battery capacity is measured in kWh, not kW. Charging rate is measured in kW, a unit of power.

90 and 75 battery packs getting nerfed early??? is known. I can’t speak to others.

 

[4hourrule]

I can't answer your question about 70,75, and 90 packs being nerfed. However, not everything is an aluminum body. Pics are from 2012/3 MS from the Chicago area. Not sure if 2015-17 MSs changed.

View attachment 1006801View attachment 1006802

Is that rusted Bar your Sway Bar?

 

[NV Ray]

Is that rusted Bar your Sway Bar?

Not my car. But yes, looks like sway bar to me.

 

[brainhouston]

Larger pack will have faster dc charging, just how electricity n ohm's law works

I have not heard of 75/90 packs nerfing
However early 90 packs had fast degradation

My v3 90 (part #108*) still gets 120kw speeds with 96k mi odo

Personally I'd stay away from 2015 n early 2016 cars

Also keep in mind any car before Oct 2016 is AP1, ie not upgradable n no dash cam or sentry

 

[4hourrule]

Not worried about anything beyond AP1. Ony crazy thing is how short a time it stay at 100+ KW before it plummets. I mean 21 ID4 only goes to 125kw but it stays there so much longer thru Charge.

 

[brainhouston]

i actually took some screenshots on the trip in Oct last year

According to screenshot time stamps, it was 19min for 25-60%

Hope this helps.

 

[PCMc]

Here's data taken over Q4 2023 with charging curves for my mid-June built MS 90D. The data is composite of about 47 different charging session and over 30 different supercharger locations. Some of the lower curves reflect cases where the battery is not up to temp.

Total mileage on my car/pack during that period ranged from around 74,000 to 79,500 miles. Overall a little over 45% of my total lifetime charging as measured by rated miles / kWh added is from supercharging (over 350 individual supercharging sessions). My charging data which I've captured suggests about 8.5% apparent degradation in pack capacity with 100% charge being around 268 miles vs. 294 rated when brand new. (You can find a plot of my charging data captured over lifetime in another post I made earlier today).

Compared to when my car was new, it charges faster in terms of peak KW rate as well as shorter overall charging time at a supercharger. So from my personal experience, I've seen nothing to suggest my charging speed being nerfed.

 

[4hourrule]

i actually took some screenshots on the trip in Oct last year

View attachment 1006882
View attachment 1006883
View attachment 1006886
View attachment 1006887
View attachment 1006888
View attachment 1006889
View attachment 1006890
According to screenshot time stamps, it was 19min for 25-60%
View attachment 1006892

Hope this helps.

That doesn't seem too bad. Thought about an X but the Drive Shaft troubles steered me away.

 

[4hourrule]

Here's data taken over Q4 2023 with charging curves for my mid-June built MS 90D. The data is composite of about 47 different charging session and over 30 different supercharger locations. Some of the lower curves reflect cases where the battery is not up to temp.

Total mileage on my car/pack during that period ranged from around 74,000 to 79,500 miles. Overall a little over 45% of my total lifetime charging as measured by rated miles / kWh added is from supercharging (over 350 individual supercharging sessions). My charging data which I've captured suggests about 8.5% apparent degradation in pack capacity with 100% charge being around 268 miles vs. 294 rated when brand new. (You can find a plot of my charging data captured over lifetime in another post I made earlier today).

Compared to when my car was new, it charges faster in terms of peak KW rate as well as shorter overall charging time at a supercharger. So from my personal experience, I've seen nothing to suggest my charging speed being nerfed.

View attachment 1006893

2023 is way too new for me.

 

[PCMc]

2023 is way too new for me.

The data was collected from my charging sessions in Q4 2023, but this is data from my June 2016 built Model S 90D. So represents one of the packs that the OP was asking about being nerfed.

The curves I've collected in the past 2 weeks on my brand new 2023 Model S LR are off the top of that chart. I've seen peaks of 254-255 kW, even though the state the V3 superchargers to only be 250 kW capable.

 

[brainhouston]

That doesn't seem too bad. Thought about an X but the Drive Shaft troubles steered me away.

Ppl over exaggerate half shaft issue in my opinion
Sure it has subtle vibration at heavy acceleration but it doesn't bother me a bit
U can always lower suspension to low, n u barely feel it then...
Under normal driving its perfectly fine

 

[4hourrule]

Still scary when U C posts of Shaft replacement every 30- 40 thousand miles. Since we put a lot of Miles on Cars in my Family that could get expensive.

 

[cduzz]

Still scary when U C posts of Shaft replacement every 30- 40 thousand miles. Since we put a lot of Miles on Cars in my Family that could get expensive.

I've had a nosecone 90S since 2019; put 50k miles on it in that time. *Lots* of things have broken on it in that time, but it still charges from 10% to 50% quickly and I've never had any half shafts replaced. Lots of door handle issues, charge port door, AC drain plugged, steering rack, a bunch of air suspension things (most probably were fine but were swapped under warranty because they didn't debug the issues), some windshield wiper woes, etc. But half shafts? They've been fine. When I got the car it'd charge to 277; now it charges to 268. It supercharges quickly enough and there are enough superchargers around that I don't think about range, and haven't in years.

 

[dsm363]

Not worried about anything beyond AP1. Ony crazy thing is how short a time it stay at 100+ KW before it plummets. I mean 21 ID4 only goes to 125kw but it stays there so much longer thru Charge.

That is unavoidable with the earlier cars Peaks at 90kW for a very short time early in charging SOC>

 

[4hourrule]

I've had a nosecone 90S since 2019; put 50k miles on it in that time. *Lots* of things have broken on it in that time, but it still charges from 10% to 50% quickly and I've never had any half shafts replaced. Lots of door handle issues, charge port door, AC drain plugged, steering rack, a bunch of air suspension things (most probably were fine but were swapped under warranty because they didn't debug the issues), some windshield wiper woes, etc. But half shafts? They've been fine. When I got the car it'd charge to 277; now it charges to 268. It supercharges quickly enough and there are enough superchargers around that I don't think about range, and haven't in years.

Bought new or used? How many miles now? Nosecone? Is that the Black front cover?
Thanks

 

[cduzz]

Bought new or used? How many miles now? Nosecone? Is that the Black front cover?
Thanks

Mine is a 2016, "nosecone" means pre-facelift. I got it used from tesla in 2019 back when they were offering a 4 year B2B warranty on their used cars.

 

[swt2c]

2017.3 S75D here. I don't think I've observed any throttling. I've seen recent peaks of ~130kW while supercharging.