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Model Y SR Battery Size

aschulz90

Member
Feb 11, 2016
23
16
Boston, MA
Any theories on the newly released model Y's battery size? I'm going to guess same as my 2021 M3 SR+ which is 55 new / 53.5 useable upon getting it (less the 2.4-2.5kWh buffer).
 

jcanoe

Active Member
Oct 2, 2020
1,230
1,254
Maryland
That seems about right; 244/326 mile range when SR is compared to the LR Model Y is 75% of LR. 75% of 74kWh is 55.5kWh. At least until the new slightly larger 82kWh battery packs start showing up in the MY.
 

specialgreen

Member
Jan 21, 2020
40
74
Minneapolis MN
I was wondering if the off-menu Tesla SR Y may have the same 78kwh pack as the LR, but software-locked? It would be interesting to compare the charge curve of an SR vs LR. If the SR is software locked, then it would probably charge at peak rate to a higher percentage than the LR. But I'm not finding any Y SR charge curves posted online.
 

pt19713

Member
Feb 5, 2020
701
845
Delaware
I was wondering if the off-menu Tesla SR Y may have the same 78kwh pack as the LR, but software-locked? It would be interesting to compare the charge curve of an SR vs LR. If the SR is software locked, then it would probably charge at peak rate to a higher percentage than the LR. But I'm not finding any Y SR charge curves posted online.
Unlikely based upon the weight differences.
 

DonaldBecker

Member
Aug 24, 2020
118
115
95033
Unlikely based upon the weight differences.

Ahh, yes, that's a good place to check.

AWD-LR and AWD-P: 4,416 lb (2003 kg)
RWD-SR: 3,920 lb (1,780 kg)

However there is the confounding factor of the omitted motor.

I'm guessing that of the 500 lb weight difference, half is for the partially-filled battery modules.
 

jcanoe

Active Member
Oct 2, 2020
1,230
1,254
Maryland
The front drive unit in the Model Y weighs slightly more than 200 lbs; 225 or 235 lbs as I recall reading. The remaining weight difference is attributable to the larger battery pack and the electronics associated with the front drive unit.
 
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RocketMan777

Member
Jan 24, 2021
35
25
USA
So it took 34KWH to bring my SR Model Y from 25% to 90%...
Simple math will tell you that it looks like it is a 55 KWH battery...
I just brought it back from a 220 mile road trip (each way). I noticed supercharging at the 150 KWH supercharger was exactly the same as doing it at the 250 KWH superchargers...with a battery that small...it looks like it will not accept a super high charge rate...if my memory is correct I believe 130 KWH charge rate is the highest I saw when I plugged it in with a SOC of 25%...

Hope this helps...
 
Oct 3, 2020
140
160
Seattle
So it took 34KWH to bring my SR Model Y from 25% to 90%...
Simple math will tell you that it looks like it is a 55 KWH battery...
I just brought it back from a 220 mile road trip (each way). I noticed supercharging at the 150 KWH supercharger was exactly the same as doing it at the 250 KWH superchargers...with a battery that small...it looks like it will not accept a super high charge rate...if my memory is correct I believe 130 KWH charge rate is the highest I saw when I plugged it in with a SOC of 25%...

Hope this helps...

did you navigate to the supercharger?

I would expect the charge rate to be reduced when compared to the long range MY, but not by more than 25% based on the difference in capacity. In theory, the equivalent max charge rate of the standard range pack, when compared to the LR pack, would equate to 187.5 kW. If you didn’t reach this charge rate, that could either be due to the cell temperature not being hot enough and/or the SoC not being low enough.
 
Last edited:

acarney

Active Member
Jul 9, 2019
2,326
1,385
Richland, WA
So it took 34KWH to bring my SR Model Y from 25% to 90%...
Simple math will tell you that it looks like it is a 55 KWH battery...
I just brought it back from a 220 mile road trip (each way). I noticed supercharging at the 150 KWH supercharger was exactly the same as doing it at the 250 KWH superchargers...with a battery that small...it looks like it will not accept a super high charge rate...if my memory is correct I believe 130 KWH charge rate is the highest I saw when I plugged it in with a SOC of 25%...

Hope this helps...
V3 superchargers should allow the standard range hit 170kW if it’s down near 10 to 20% SOC and battery is warm (essentially hot, like 90F+).
 
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