-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
MASTER THREAD: 2021 Model 3 - Charge data, battery discussion etc
- Thread starter EV Promoter
- Start date
TimothyHW3
Active Member
Do you have a screenshot around 4.15V?I wanna see what % that is from the 81kWh. It seems the soft locked Panasonic batteries are probably the same as the 81kWh or close to them.
Maybe once it starts dropping to about 97/93% you can take a picture when it is clos to 4.14/4.15V
I can charge to 4.15v in a few days* what % should I aim for when setting the charge?
* Gonna do a wash and mount some protection film in front of the rear wheels, due to real winter up here i northern sweden I will let it sit for 24 hours after the film is put in place.
Maybe even have to crank up my gasoline Audi
TimothyHW3
Active Member
I don't know, probably around 92-94%, a little bit up or above. Just try to check when the charger is unplugged and you are at around 4.14+-4.15V If you have it at 100% just watch it go down to that.
TimothyHW3
Active Member
Did you manage to charge to 4.14-4.15V? What was the expected kWh number and at what % did you reach it?
Im onto it. The garage is occupied of my daughters Audi, a sound system upgrade is ongoing, was supposed to be done yesterday but they didnt finish. Maybe finished this evening. So my M3P is outside at -20 t0 -25C.
I dont know but guees the cell voltage will come out a bit on the low side compared to the SOC if being oputside at -25C.
Also I guess 4.15v/cell will be 93-96% and I wont charge and leave it like that for any longer time. If you give me a couple of days av have a trip to do and can charge it inside in normal temps.
I also guess you like the ”no load” (or almost no load) resting voltage of the cells.
Have you checked the cell voltage in LR to only 4.14-4.15v ?
If we think the LR also has the 2170L and only are charged to 77.8Kwh, then the charge target should be oraound 77.8/82.1( thinking full pack when new). My pack has only 2000km and have increased the nominal full pack. Just cranked up and moved the M3P to get the daughters car out of the middle of the garage, now nominaf full was 80,5kwh but it have been sitting outside at -23 for a couple of days.
Cell temp when I checked was about + 25degree C (preheated).
TimothyHW3
Active Member
My LR charges to 4.15V only, it is soft locked.
I don't think it is the same 81-82 kWh battery, but I have a screenshot at 100% of a US model that charges to about 4.19V, whereas previously it was more about closer to 4.2V. So I think it is about 79kWh
Also maybe you can find an Android device to install SMT on, the iOS has only 2 decimal points and we need 3
Charged to 95% during the night.
From SMT:
-SOC 94.81%
-Expected remaining 76.5kwh
-Usable 73.00kwh (+buffer 3.6= 76.60)
-Nominal remaining 76.60kwh
-Cell Volt max 4.14
-Cell Volt average 4.13
-Cell Volt min 4.13
Cell temp average 19.75C
Garage temp 10C
I think the charge was completed about one hour before I left home, so there wasnt time for to complete cell balancing I guess. Delta 6mV, after last time balancing I had 4 mV.
The check was done when I was about to leave home, so the car was awake but I shut down the AC/heating system, no lights was on.
Perhaps need to charge to 96% to reach 4.15V.
FredMt
TM3 LR Q4 2021 (after LR Q4 2019 and M3P Q2 2021)
For model 3 performance, new references in the car type appear on the papers for next deliveries in Germany.
Exit E3D and welcome E3LD? ... "L" for what? ... LG? Long life?
It smells new battery pack... no ?
Thanks to @phil_m3p
MASTER THREAD: 2021 Model 3 and differences from 2020
Original german post:
Übersicht 2021 LR / P Batteriekapazität Fahrzeugschein
Exit E3D and welcome E3LD? ... "L" for what? ... LG? Long life?
It smells new battery pack... no ?
Thanks to @phil_m3p
MASTER THREAD: 2021 Model 3 and differences from 2020
Original german post:
Übersicht 2021 LR / P Batteriekapazität Fahrzeugschein
There was a lot of confusion about battery sizes on the german ttf-forum. The cars registration papers seemed to randomly get 77, 79 or 82kwh.For model 3 performance, new references in the car type appear on the papers for next deliveries in Germany.
Exit E3D and welcome E3LD? ... "L" for what? ... LG? Long life?
It smells new battery pack... no ?
Thanks to @phil_m3p
MASTER THREAD: 2021 Model 3 and differences from 2020
Original german post:
Übersicht 2021 LR / P Batteriekapazität Fahrzeugschein
The new 2170 cell is called 2170L, thats the one said to be used in the performance 82kwh battery.
A simple guess, to distinguish cars between different E3D batterys (for the registration to know what battery size), they added ”L” from the 2170L ?
Or is this guess to simple ?
FredMt
TM3 LR Q4 2021 (after LR Q4 2019 and M3P Q2 2021)
Here is all variants and versions of model 3
Thanks a lot to @eivissa
new battery packs certainly to be characterized.
MASTER THREAD: 2021 Model 3 and differences from 2020
Thanks a lot to @eivissa
new battery packs certainly to be characterized.
MASTER THREAD: 2021 Model 3 and differences from 2020
TimothyHW3
Active Member
You are probably reffering to that video of Nyland. There seems to be some issue with lower SOC in cold conditions, but what he calls limp mode is barely what he makes it to be. You can still drive at 150km/h (which you are not supposed to in Norway anyways) and the acceleration is fine, you can overtake plenty.
You do get a little less power than before though at below 10-15% of about 80kW (from around 200kW rear motor), but that still is enough for every situation.
I don't think it is resolved yet, might be battery related, because the LGs don't do that bad.
I would say the two questions belong together.
I've got the 2020.48.35.5 on my car for seven days now and this is my drive data from that time frame...
The car still opts for around 15°C in the battery pack, which limits the maximum discharge power.
The car still limits the maximum voltage sag / minimum battery voltage to 280V (LG Packs i.e. can go town to 260V)
My "negative" record so far has been 78hp and just about 130kph at full throttle in the Refresh Performance...way to go!
And sorry, but no!
-You can't "overtake plenty" with 78hp full throttle. You can barely maintain German Autobahn speed...I have tried.
-You can still drive at 150km/h...I could not.
-little less power / about 80kW...less than that as shown above.
-enough for every situation...I tend to disagree.
-I don't think it is resolved yet...true
-might be battery related...true
-the LGs don't do that bad...true
Last edited:
TimothyHW3
Active Member
This is my experience with the LR which probably has the same or similiar batteries. Also the 80kW is what SMT shows, but I can pull more.
78hp seems a bit too much, what is that, about 60kW. I think I had 50-60kW shown around 5% or below that and could do 80kW if I kicked it.
Disagree, I was at 1% at 55kW max kW shown on SMT (but when I kicked it it went to 90kW) if I remember correctly and was doing normal highway speeds 130km/h.
Maybe the Performance suffer a bit too much because of the wheels and the added weight.
Also, as far I saw below 8% Nyland didn't have much than 65kW on his LG neither. Maybe they are a bit better, but not a lot better.
So as a general rule of thumb, just don't go expecting highway speeds at below 5% with a P in cold conditions
Similar threads
- Article
