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New Li-Ion Battery for 2021 Model S and Model X

Discussion in 'Model S: Battery & Charging' started by r1200gs4ok, Feb 17, 2021.

  1. r1200gs4ok

    r1200gs4ok Active Member

    Joined:
    Jul 17, 2019
    Messages:
    1,306
    Location:
    Irvine California
    I have heard that the new 2021 Model S and Model X will have a new 12v Li-Ion battery.....will this battery be able to be put into a 2020 Model S when it is time to change the 12v battery? thanks in advance
     
  2. NickFie

    NickFie Member

    Joined:
    Sep 28, 2017
    Messages:
    510
    Location:
    Near Philadelphia, PA
    Tesla’s new Li-Ion battery will probably fit older S & X.

    You don’t have to wait. Ohmmu has been selling Li-Ion batteries for S & X, also 3 & Y for years. They have a strong reputation. One stumble when the Model 3 battery internal control system didn’t work well after a Tesla update. They did free battery swap for affected customers.

    We got a 12 Volt battery warning message on our 2017 S 100D last Fall. Ordered the battery and installed it in relatively short order.
     
  3. r1200gs4ok

    r1200gs4ok Active Member

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    Location:
    Irvine California
    anything special to do for installation???? or is it just like any other R&R
     
  4. NickFie

    NickFie Member

    Joined:
    Sep 28, 2017
    Messages:
    510
    Location:
    Near Philadelphia, PA
    Follow their instructions and video.
    • Remove frunk trim.
    • Leave driver’s window open. Turn off car.
    • Disconnect First Responder Loop.
    • Remove some vents and drains. This takes careful attention to how they’re fastened and gentle pressure.
    • Remove frunk tub.
      Disconnect old battery, wrap leads to ensure they don’t touch metal.
    • Remove old battery. I took a few minutes to clean up exposed structure.
    • Ensure you have the key in your pocket.
    • Attach new battery. Alarm will sound when power starts. Use the lock button to stop the alarm.
    • Reverse disassembly.
     
  5. NickFie

    NickFie Member

    Joined:
    Sep 28, 2017
    Messages:
    510
    Location:
    Near Philadelphia, PA
    AD5C42F0-DDC0-4456-928D-C8700221F8EC.jpeg
    Ohmmu battery just installed.

    Follow their instructions and video.
    • Remove frunk trim.
    • Leave driver’s window open. Turn off car.
    • Disconnect First Responder Loop.
    • Remove some vents and drains. This takes careful attention to how they’re fastened and gentle pressure.
    • Remove frunk tub.
      Disconnect old battery, wrap leads to ensure they don’t touch metal.
    • Remove old battery. I took a few minutes to clean up exposed structure.
    • Ensure you have the key in your pocket.
    • Attach new battery. Ala
     
  6. r1200gs4ok

    r1200gs4ok Active Member

    Joined:
    Jul 17, 2019
    Messages:
    1,306
    Location:
    Irvine California
    super pix......thanks a lot.....I am looking for batteries now...thanks again
     
  7. Dukeybootie

    Dukeybootie Member

    Joined:
    Nov 12, 2015
    Messages:
    179
    Location:
    United States
    If you would rather have someone else install it for ~$100, this Oceanside shop can take care of you:

    https://stealthev.com/

    They are an official Ohmmu installation partner and did a nice job for me. Took about an hour.
     
    • Informative x 1
  8. r1200gs4ok

    r1200gs4ok Active Member

    Joined:
    Jul 17, 2019
    Messages:
    1,306
    Location:
    Irvine California
    that's great....they are a nice ride for me....have lunch there while they install battery....thank you very much for the recommmendation
     
  9. airborne spoon

    Joined:
    Oct 10, 2019
    Messages:
    197
    Location:
    Ft Irwin
    Its funny I've disconnected the damn thing a few dozen times and it only sets off the alarm like 30% of the time, i do the exact same thing every time: HV loop then neg on the batt, and reverse it back together. I think it has to do with how many times i open the door while working on the car maybe. I dono just an oddity i cant seem to explain.
     
  10. NickFie

    NickFie Member

    Joined:
    Sep 28, 2017
    Messages:
    510
    Location:
    Near Philadelphia, PA
    Both times I disconnected the battery, alarm sounded when I reconnected.

    It may correlate with disconnect duration. Both of my disconnect sessions were more than 30 minutes. It takes a while to run out of wrong ways to do something before finally getting it right.
     

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