7 years later what is your 100% on your 85kWh battery?

[ran349]

I'm assuming to calculate degradation as a percentage is simply converting from percentage to mile on the cars range? Simple math then to subtract the miles noted today from the new car capacity provided when it was new? Otherwise how would one calculate degradation of the battery? I have a 2015 85D with about 32,000 miles.

Yes, you can simply extrapolate your rated range from say, an 80%, or 90% charge, to 100%, and subtract that from the rated value when new, which for you was 270 rated miles. Or divide the extrapolated 100% value by 270 to get a percent degradation.
To minimize rounding errors, it's best to extrapolate from a high percentage charge.

 

[RandyS]

Took a 200 mile road trip today in my 2013 P85 with "A" revision 85 kWh battery pack. San Diego to Borrego Springs and back. Lots of hills (up and down)...

I charged at a pretty slow speed (12 amps Level 2) to get the car to 100% by the hour we left this morning, and the 100% mileage was 253 miles. When I bought the car in May 2013, the same 100% mileage was 255 miles. Of course, the car has had a bunch of software updates over the years that have undoubtedly changed many of the parameters related to charging and range, so I don't think the numbers are apples and apples comparable.

But we had a good time on the road trip today, and the car was behaving normally.

 

[Frunky-Runner]

European AUG 2015 215.000 km, 100% = 367km

 

[T.R.T.e.s.l.a.]

European AUG 2015 215.000 km, 100% = 367km

Is your a S85 or S85D?

 

[nguyentoogood]

2015 P85D 238 miles 60k miles

 

[Myfirstone]

2015 Model S 85D (100% SOC)
16 Feb 2019 w/ 45094 miles, 262 rated miles (76.3 kWh NomFullPack)
2 Feb 2020 w/ 52204 miles, 255 rated miles, (74.0 kWh NomFullPack)

Wauw!!! My model S 85 Base from 2015 has a nominal capacity off 72,9 kW and useable capacity of 69kW.

 

[Myfirstone]

2013 P85 184k miles. 100% is 235.

i've been tracking my usage more lately to see if my degredation is normal. i dont think it is but i keep mentioning it to Tesla and they say it is.

for example, last week one trip from 100% (235 miles) to 27% (65 miles) used 45.8kWh. So 73% of usage was 45.8kWh...
and again last week, from 100% to 13% used 53.2 kWh.
and again from 54% to 19% used 21.9kWh.

I still use on average about 30% more range than rated to get to my destination. It's always been that way.

anyway, calculating out those numbers above, it would seem my "Usable 100%" is about 62kWh, which is far below what an 85kW pack should be. Sure I get that only 77kW is usable on an 85kW pack, but still, every trip i make calculates to about the same around ~61kW usable in my pack. Last time I went from 100% to about 4% it used around 58 or 59 kW but that was about a year ago I think. Still works out to be the same. I never take it that low anymore though. Last time I did that the car shut down with 7 miles rated range still showing. so my usable range in real world usage is pretty low....

Do you use the heater?

 

[wodnik7]

@yobigd20 why don’t you install the odb scanner and an app? Is maybe 50$ and then you will know for sure!

 

[Frunky-Runner]

Is your a S85 or S85D?

S85 and 369km range now

 

[smilepak]

2015 P85D 238 miles 60k miles

Dang that’s a big drop. My 2015 70D at 96k miles can do 220 miles at 100%

 

[Gridlok]

December 2015 P85D still get about 400K. Well I don't but that's what a 100% charge shows.

 

[maximizese]

November 2013 built S85.

April 2019 at 68K miles the range at 100% was 256 rated miles.

March 2020 at 90K miles the range at 100% is 241 rated miles.

It's very likely the range has been limited to the maximum voltage cap that has been assumed by recent software updates.

 

[BlueOvalFan]

2015 P85D @ 35k miles
100% 247 miles

Charge rate
13% 116 kW
18% 114 kW
37% 99 kW
45% 85 kW
49% 76 kW
56% 68 kW
69% 53 kW

I will had the car for a year now starting April and picked it up back then with 31k miles and the first SC session to a 100% was 247 miles.

I’ve now clocked another 21k miles, and sitting at 52k. My 100% is still 247 per my display, however teslafi is saying im at 246.76 based on my most recent 100% charge. Seems just a little more degradation and I’ll be at 246 soon.

My charge strategy for my daily commute is a starting SoC of 73% and returning home to about 38% (72 mile round trip). I try to keep the battery in the middle 3rd of its total capacity which seems to keep degradation at bay. I do take the car on long trips and have no issues charging to 100% if needed, but I do usually limit it 95%.

When away on vacation, or away on business I do leave it plugged in and limit the SoC to 50%

Hopefully this regimen will keep the battery going strong...

BTW; I do use Tesla’s DC charging network about one or twice a month and have seen a slight SC reduction:
30% 85kW
40% 76kW
50% 65kW
60% 52kW
70% 44kW
80% 37kW
90% 22kW

 

[T.R.T.e.s.l.a.]

S85 and 369km range now

Not bad.
Mine has more or less the same range, but only about half the km (currently has 115k km)

 

[tnt1971]

I have one of the last 85Ds, built in Feb, 2016. It has just under 71k on the odometer. I took a road trip from the NYC area to DC and back this past weekend. Good news is that it was the first time I made it without stopping to charge. Bad news is I think Tesla is fooling with the numbers, and here is why.

My full range charge is 262 miles, and I charged it up to that and left DC. The weather was absolutely perfect, so I did not use climate control at all and ran with the top open to vent mode. I averaged 245 wh/mile all the way up, and we only stopped twice to use a bathroom (no charging). It was 258 miles home, and I arrived with 26 miles left or almost exactly 10%. The trip odometer showed I used 64.4 kwh. That means my full charge capacity is almost exactly 71.5kwh. I know my rated wh/mile is 290, Doing a little math, my rated range should be 246 miles, and not the 262 shown. Put another way, it seems I lost 4.6 kWh driving even though the car did not sit for more than 30 minutes, total and I never use the preconditioning at all. Again, climate did not run at all.

 

[ran349]

I have one of the last 85Ds, built in Feb, 2016. It has just under 71k on the odometer. I took a road trip from the NYC area to DC and back this past weekend. Good news is that it was the first time I made it without stopping to charge. Bad news is I think Tesla is fooling with the numbers, and here is why.

My full range charge is 262 miles, and I charged it up to that and left DC. The weather was absolutely perfect, so I did not use climate control at all and ran with the top open to vent mode. I averaged 245 wh/mile all the way up, and we only stopped twice to use a bathroom (no charging). It was 258 miles home, and I arrived with 26 miles left or almost exactly 10%. The trip odometer showed I used 64.4 kwh. That means my full charge capacity is almost exactly 71.5kwh. I know my rated wh/mile is 290, Doing a little math, my rated range should be 246 miles, and not the 262 shown. Put another way, it seems I lost 4.6 kWh driving even though the car did not sit for more than 30 minutes, total and I never use the preconditioning at all. Again, climate did not run at all.

I think your numbers make sense, and I agree that Tesla is doing some fooling with the numbers, and they always have been.
But 262 rated miles out of 270 original rated is very good for a 4 year old car.

The 290 wh/mi number is misleading because the car will report .290 x 262 = 75.98 kWh added energy if you charged from 0% to 100%. But if you look at diagnostic port CANBUS data, you will see that your actual usable kWh subtracts 4.0 kWh (energy buffer) from that value. So your actual usable would be 75.98 - 4 = 71.98 kWh. Of course, if you continued driving below zero % or zero miles, you might get to use some of that buffer, but there is no guarantee of that. Since you had about 71.5 kWh usable from your test, you actually only lost 71.98 - 71.5 = 0.48 kWh in your test drive, which is less than 2 rated miles. That would make sense since you spent very minimal time stopped during your trip.

 

[RoninAMG]

15 MS P85D+ - Sitting on 19" Rohana RFX5's (about 8 pounds lighter per wheel over stock 19" cyclones)
68,334 with a fairly even NEMA 14-50 @ 20 amp charge to Supercharger ratio
232 miles @100%
212 miles @ 90%

 

[bomquito]

15 MS P85D with vin 1041xx Sitting on 21" Michelin Pilot Sport
88,285 miles with 70-30 ratio between charging at work (NEMA14-50) and Supercharger.
211 miles @ 90%

 

[BrownMS]

2013 ms 85 with battery replaced last march gets "235" miles to a full charge

 

[Spacey73]

Just charged my S85 Nov 2014 build 121,800 miles to 99% battery. Rated range is 270 miles and typical range is 222 .... I might have that the wrong way around typical, rated....