wk057 Tesla Model S Battery weight

[George S. Bower]

Do any of you out there know if wk057 weighed the model S pack when he did his teardown.....or the Model S 100. If he did I can't find it. Perhaps he just weighed 1 module. That would help as well.

wikipediia has the weight of the model S 85 battery as 1200 lbs but I'd like a second source.

Thx,
George

 

[BigD0g]

Why not ask @wk057 ? I do know he loves his fork lift

 

[Troy]

Hi. Here are a few EPA documents that have the weight numbers of most Tesla packs:

Model 3
Model X
Model S RWD
Model S AWD

In case you want the weight numbers to calculate energy density improvements, here is my calculation for similar size Model S / Model 3 packs.

Model S 75

• 530 kg (See page 32 here)
• 75,000 Wh (Source)
• Energy density= 75,000 Wh/530 kg= 141.5 Wh/kg

Model 3 LR

• 480 kg (See page 14 here)
• 80,500 Wh based on 350 V * 230 Ah (page 3 here) = 80,500 Wh.
• Energy density= 80,500 Wh/480 kg= 167.7 Wh/kg

Based on this, the Model 3 LR pack has 167.7/141.5 - 1= 18.5% higher energy density than the Model S 75 pack. In addition, below are two EPA documents that show the usable capacity of these two packs but we need total capacity, not usable capacity.

• Model 3 LR usable capacity: 78,270 Wh (See page 6 footer here)
• Model S 75 usable capacity: 73,200 Wh (See page 16 here)

 

[George S. Bower]

Hi. Here are a few EPA documents that have the weight numbers of most Tesla packs:

Thx Troy. Interesting that they have LR Model 3 battery volume as the same as Model S. I'll have to summarize these numbers.

 

[arnis]

M3 battery includes more equipment. It's inside the battery pack. Charger, converter etc.

 

[George S. Bower]

M3 battery includes more equipment. It's inside the battery pack. Charger, converter etc.

I think you may be right on that.
I'll post the spreadsheet tmo.
The M3 pack seems to have a better usable energy/kg than the P100D pack and it probably includes more electronics. I don't think the dc-dc converter was in the pack before.

 

[MP3Mike]

Do any of you out there know if wk057 weighed the model S pack when he did his teardown.....or the Model S 100. If he did I can't find it. Perhaps he just weighed 1 module. That would help as well.

If you look at @wk057's company site, HSR Motors, you can see the weight of the various modules:

100kWh: 66 lbs. * 16 per pack = 1,056 lbs. of modules. (213 Wh/kg)
90 kWh: 58 lbs. * 16 per pack = 928 lbs. of modules. (209 Wh/kg)

85 kWh: 58 lbs. * 16 per pack = 928 lbs. of modules. (198 Wh/kg)
60 kWh: 53 lbs. * 14 per pack = 840 lbs. of modules. (187Wh/kg)

Note that is weight for just the modules, not the pack structure, etc. But I am guess that the pack structure weighs pretty much the same between the sizes.​

 

[MP3Mike]

Based on this, the Model 3 LR pack has 167.7/141.5 - 1= 18.5% higher energy density than the Model S 75 pack.

You really can't compare the energy density between the Model S&X packs and the Model 3, since the Model 3 packs include so much extra equipment. (For example the 48A charger adds ~36 pounds to the Model S&X.)

 

[George S. Bower]

If you look at @wk057's company site, HSR Motors, you can see the weight of the various modules:

100kWh: 66 lbs. * 16 per pack = 1,056 lbs. of modules. (213 Wh/kg)
90 kWh: 58 lbs. * 16 per pack = 928 lbs. of modules. (209 Wh/kg)

85 kWh: 58 lbs. * 16 per pack = 928 lbs. of modules. (198 Wh/kg)
60 kWh: 53 lbs. * 14 per pack = 840 lbs. of modules. (187Wh/kg)
​

Jackpot. Thx a bunch. I didn't know about Jasons new catalog. He said he was going to do a controller but I didn't know it was done. Can you imagine building a stripped down rail with the large drive unit and some P100 modules!! Looks like you could do it with his controller.

Pack wts are great also. That 58 lb number agrees with EVWest product catalog (55lb). That puts 16 modules at 928 lb compared to a total pack wt of 1200 lb. That's a heavy case!

Drive unit wts are good info also. We were trying to estimate the wt of the semi drive unit. A small model S drive unit times 4 might be a good WAG. he has the wt of that at 196 lbs.......so semi drive unit=800 lb????????????