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12v

  1. A

    12V Battery Replacement Outside of Warranty

    This is my first warning of my 12V battery needing replacement after warranty ended. I have a few questions for those that have done it. Can this be done myself? Where do I buy the 12V battery if I can? How much does Tesla charge for this service? How long do I have from the first warning...
  2. N

    Planning for the future: 12V battery dies

    All, I've been reading that the M3 has tended to have 12V batteries that die all of a sudden. In an ICE vehicle you can get an indication that a battery is close to death, particularly in cold weather, by hearing the struggle of the starter. What warning signs are there in a Tesla of...
  3. G

    Permanent 12V Aux Battery connected to 12V car Battery. Will it work?

    So I forgot to plug in the car before applying a software update. 5 hours later, car was dead. Something wonky with the update (2020.20.17). This is a 2018 Model X, with 2.5 years and 70K km. Jump starting was effective, but not immediate. I had to "revive" the old battery for at least 20 min...
  4. corndog

    Stock amp power for aftermarket amp turn-on?

    Working through my Model 3 Premium audio upgrade. There is a lot of discussion/advice about where to get your turn-on signal for your after market amp, but I'm not sold on running a line all the way from the front of the car (VC left or cigarette socket). I haven't seen anyone mention using the...
  5. F

    Looking for always on 12v in rear of Model X (late 2018 build)

    Short version: I know there are options in the back to tap into, but it seems like you need to be in the car/car powered on for them to get juice. Looking to avoid running a cable from front to back to get a dedicated always-on 12v line in the rear. I don't need a lot of power. Is there...
  6. T

    Battery draine to 0% at a body shop

    Hi, I think posts about drained battery might be aplenty but my experience seems little unusual based on my forum searches, so here it goes.. My Model 3 LR RWD got rear ended (other side admitted liability) and car was put into a body shop in San Jose, CA back in early December. My car's charge...
  7. rohan3au

    How to: Model 3 Constant 12V for Dashcam

    Hey all, I did some searching and can't find a to-the-point post on getting a constant 12V feed that's easy to get to for a dashcam, so here it is. Remove the front domelight / hazard switch / microphone housing using plastic trim removal tools, it can be tricky to get out, be patient. The grey...
  8. DucaTinus

    Ampère op voorste USB poorten

    Heb een wireless charger aangesloten maar bemerk dat de doorgegeven Ampere's beperkt zijn op de voorste USB poorten.Lees dat het maximaal haalbare 2.1A per voorste USB poort is maar dat er eeen grote kans dat die 2.1A niet gehaald wordt in de praktijk. Mijn telefoon wordt niet bijgeladen tijdens...
  9. V

    12V battery replacement, whos had to do one?

    Just curious, who all has had a 12V failure on your MX? Did you have any other electronics installed? Dashcam? Ive got a blackvue DR900 installed with the trailer hitch method. Just curious how common of a problem is this
  10. R

    12V Battery warning just came up with very bad timing - how long do I have?

    Hi, I'm up in Tahoe (Incline Village, NV actually, walking distance from Diamond Peak's resort) and we got a good snow storm that made things very difficult around the area. That part is not that bad, except that the 12V warning just came up this morning, and I can't figure out the level of...
  11. M

    M3 - Nothing turning on

    So I've had the Model 3 since the middle of July and haven't had any issues besides some crazy battery draining. Anyway, this past Sunday (September 23) I got in the car with my keycard (my phone doesnt have the best service at my apartment) and once I got in NOTHING was turning on. The app...
  12. C

    a Tesla that makes coffee

    hi folks, here is my stupid but yet fun summer project: find how to attach a coffee brewer machine to my french Tesla Model S. using capsules in a machine plugged to my 12 Volts plug would be rad. So when people ask me "yes, nice, but does it makes coffee" i could anwser YES! i just don't know...
  13. D

    12V Accessory Power

    Anyone know the specs on the 12V power port in the M3 center console. Is it 12 Amps, 15 Amps max? Also, assuming it switches off when the vehicle is off, yes? Is there another 12V power source anywhere else in the M3?
  14. sgblank

    My 5-year Model S Maintenance/Service History

    My Five-Year Model S Service History 2013 – Model S P85 - delivered in March HPWC (Tesla Wall Charger) in my home garage failed ranger came and replaced the HPWC fuses Pano roof chewed up its rails and would no longer open Service replaced the Pano roof Replacement Pano roof had wind noise...
  15. MarkS22

    Video: Standard 9V Battery vs Model 3 Frunk

    So, with all the discussions about the Model 3's 12V frunk opening system, I thought it would be interesting to see what would happen if you didn't use a 12V portable jumpstarter... but rather a standard 9V alkaline battery.
  16. MarkS22

    Video Demo: Opening The Model 3 Frunk Using Jumper Cables

    Hey, I made a quick video giving a demo of how you can open the frunk on a Model 3 if the 12V battery goes dead:
  17. widodh

    12V batterij ineens dood en dode Model S

    Mijn Model S stopte er in Maastricht ineens mee, volgens Tesla een kapotte 12V accu. In het internationale deel een post: Immediate and fatal 12V battery failure De ANWB brengt mijn auto morgen naar Tilburg en dan gaan we het zien. 12V accu is paar maanden auto. We gaan het zien. Is is uit...
  18. T

    Model X: Help! Returned from Vacation, can't get in.

    I returned from 3 week vacation and can't get in to my Model X. Neither key fob works. Both were stored in the house far from the car and the car is only 9 months old. Tried holding the fob down below the driver's side x-wing door; nothing. Even if the problem is the 12v battery under the...
  19. tornado

    Fuse Box on 2016 S

    Hello, I have a late-2016 Model S (and a 2013 S which is not pertinent to the current question) that I'm trying to tap into a 12v switched feed. There are no diagrams at all for the fuse boxes in the new Tesla. Don't ask me to check the manual as they haven't included the word fuse at all in the...
  20. VerityZooms

    High-performance aftermarket audio in a Tesla

    So, my Model X is shaping up in to the beautifully customized beast I've envisioned; the next step is audio. I drove an old antique Mercedes drop-top for many years; and I had her fitted with a … frankly unnecessary quantity of bass-in-the-trunk: a pair of JL's 13.5" W7AEs (theoretically maxing...
  21. J

    Manual - Dashcam with constant 12v power

    I worked out an manual on how to install dashcam on the Roadster. The information could be useful for those who want to learn. :smile: See the attachment. PDF file
  22. NigelM

    Alpine unit freeze after 12v battery change

    Just posting this so that someone may find it if the same bug pops up again.... Had my annual service done on Wednesday and went to collect the car on Thursday. Service included swapping out for a new 12v but when I went to drive home I noticed that the Alpine NAV-10 didn't power up at all...
  23. K

    Low 12v battery, wat andere problemen en rare service

    Ik heb ondertussen al vaker meegemaakt dat hij (P85D van begin maart met 5000km op teller) zei dat de blindspot warning sensoren het niet deden, even later geeft hij dan de melding dat alle veiligheidssystemen het niet meer doen en dan kan ik ook TACC niet meer gebruiken. Dit is dan bij volgende...
  24. A

    Better 12v battery tech exists: LiFePO4

    I love how Tesla is innovating in their cars; not just with batteries and drivetrains, but with their display, the door handles, the GPS enabled air suspension, etc., Just curious if anyone has insight into why Tesla sticks with lead acid or gel batteries instead of a newer technology...
  25. S

    12V battery issues (error messages/car charging problems)

    We got our Model S exactly four weeks ago to the day. Today we got a warning signal that read "12V battery needs servicing" and below that "Replace 12V battery soon". Has anyone else gotten this warning? Can I drive the car with this warning on? I'm not sure what even runs on the 12V...
  26. Z

    12V battery trouble

    My girlfriend and I took my Roadster out for its first 2012 drive, and after eating some lovely ribs we returned to the car and it wouldn't unlock. I walked around to the driver's side to see if the antenna was simply not picking up signal, and I could hear the two beeps normally associated...

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