TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC

wk057 Tesla Model S Battery weight

Discussion in 'Battery Discussion' started by George S. Bower, Jan 12, 2018.

Tags:
  1. George S. Bower

    Joined:
    Jan 22, 2016
    Messages:
    176
    Location:
    Tonto Basin, Az
    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
     
  2. BigD0g

    BigD0g Active Member

    Joined:
    Jan 12, 2017
    Messages:
    1,886
    Location:
    Somewhere
    Why not ask @wk057 ? I do know he loves his fork lift ;)
     
    • Like x 1
  3. Troy

    Troy Active Member

    Joined:
    Aug 24, 2015
    Messages:
    1,831
    Location:
    #3 Troy, Jan 12, 2018
    Last edited: Jan 12, 2018
    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)
     
    • Informative x 6
    • Disagree x 1
  4. George S. Bower

    Joined:
    Jan 22, 2016
    Messages:
    176
    Location:
    Tonto Basin, Az
    Thx Troy. Interesting that they have LR Model 3 battery volume as the same as Model S. I'll have to summarize these numbers.
     
  5. arnis

    arnis Member

    Joined:
    Apr 13, 2015
    Messages:
    725
    Location:
    Estonia
    M3 battery includes more equipment. It's inside the battery pack. Charger, converter etc.
     
    • Informative x 1
  6. George S. Bower

    Joined:
    Jan 22, 2016
    Messages:
    176
    Location:
    Tonto Basin, Az
    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.
     
  7. MP3Mike

    MP3Mike Well-Known Member

    Joined:
    Feb 1, 2016
    Messages:
    9,254
    Location:
    Oregon
    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.
     
  8. MP3Mike

    MP3Mike Well-Known Member

    Joined:
    Feb 1, 2016
    Messages:
    9,254
    Location:
    Oregon
    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.)
     
  9. George S. Bower

    Joined:
    Jan 22, 2016
    Messages:
    176
    Location:
    Tonto Basin, Az
    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????????????
     
    • Like x 1

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC