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  1. davewill

    When Did You Need to Replace Your 12V Battery?

    My 2019 M3 complained about the battery a few months before my warranty was to run out. Tesla came out and replaced it free of charge.
  2. davewill

    Mileage calculations don't make sense

    I find that for day trips or any destination where I don't expect to be able to charge, it pays to program your round trip or add on the next destination, when navigating. That way the nav will plan to leave you with enough charge at your destination so that you can make to the next charging...
  3. davewill

    Schedule charging not happening.

    Were your changes showing in the interface, but the car didn't start charging, or did your changes not save? I have had instances where changes in the app did not successfully save, I assume because of connectivity issues. The app should let you know that they didn't save, and should definitely...
  4. davewill

    $89 Tera Level 2 Charger on Amazon

    I thought about doing that myself, actually. Trouble is that I'm a embedded software guy. While I'm good with schematics from a "Let me write the software to make this work" and "let's probe here to see if the bits are getting through at the right data rate" point of view, I'm not quite enough...
  5. davewill

    $89 Tera Level 2 Charger on Amazon

    Color me skeptical that this device has any quality to it. I'd love to see a teardown by someone knowledgeable.
  6. davewill

    Question for home charging install - wire size

    If you had opted to do an outlet, you would have needed the GFCI breaker. You could have left it and it would have been fine, but changing it was OK with a wall connector. Nice call on the 5-20. It could serve as an emergency charging back up if you have a mobile connector. The 2 AWG could come...
  7. davewill

    Failed (2nd) battery 700 miles out of warranty.

    It may be possible that in a particular state or country, they could be forced to give some kind of minimum warranty. Indeed, a replacement that failed in a week would look so bad, that I expect that even Tesla would know they had to cover it or face holy hell in the press...of course, if any...
  8. davewill

    Is #8 THHN with Tesla Wall Charger Up To Code? (On 50A Breaker)

    Not even that is necessary. There's no need to differentiate the two hots from each other. When my electrician ran my 14-50, he used three black wires and one green, and just marked the neutral with white at each end. I assume it was easier to have just one spool of black wire on the truck...
  9. davewill

    NEMA 10-30R on a 20A Breaker?

    I understand that it SHOULD have a 30a breaker, but you see this kind of thing all the time. Especially 6-50 and 14-50 outlets with 30a breakers, as welders often have those plugs on them, but have a nameplate rating of 30a. If I were the OP, assuming that the panel has the capacity, I'd do one...
  10. davewill

    Recell: certified replacement battery packs for low-range/bricked Model S

    https://electrek.co/2024/03/14/tesla-offering-lfp-battery-retrofits-earlier-model-3-under-warranty/
  11. davewill

    Issues With Installing a Charger in NJ with no offstreet parking

    So, when you said, "I can't get the town to give me an answer on any of the above.", you actually meant you can't get them to say, "Yes" to any of the above.
  12. davewill

    How does one report a supercharger or a Tesla L2 charger not working?

    How delighfully short-sighted! I certainly wouldn't want broken and poorly maintained equipment at my hotel. They should either repair, or at least remove the broken one.
  13. davewill

    Issues With Installing a Charger in NJ with no offstreet parking

    How exactly did you ask "the town"? Did you actually file for a permit to do a pedestal installation? I would expect that the permitting office would have to respond to you yea or nay within a prescribed amount of time. If they didn't, you could take legal action. Now they might well say no, but...
  14. davewill

    New 240v outlet pulling 0 amps

    It would be pretty easy for them to have a 14-50 on the wall, plus ordinary adapters from that to all of the various receptacle types that the mobile connector can plug into. It's what I would do.
  15. davewill

    Charging door closing immediately after opening

    It locks with the car.
  16. davewill

    New 240v outlet pulling 0 amps

    I agree. Yes, you should have installed one, but not having it won't cause the problems you're seeing, and unnecessary changes should definitely be avoided at this point. Same thing with putting in a "better" outlet. A cheap outlet isn't going to cause the problem you're seeing, and changing it...
  17. davewill

    New 240v outlet pulling 0 amps

    I agree that having it fail at the other locations is strong evidence that it's not your outlet. That said, having someone out to check it may be the only way to satisfy Tesla to take it to the next step. I'm afraid very little of the troubleshooting so far makes much sense. That said, I...
  18. davewill

    Travel charger pigtails I made today

    I guess I got the wrong impression somewhere along the way. Sorry I misjudged you.
  19. davewill

    main panel has 30 amp to garage panel, what are the options

    Yes, the two questions you want an answer to are: 1. What is the biggest I can put in? 2. What is the biggest I can do without incurring excessive expense? People so often overlook the second question.
  20. davewill

    New 240v outlet pulling 0 amps

    I have trouble seeing how that could be, but it's hard to ignore the possibility. You might want to have the circuit checked out more thoroughly before trying it yet again.
  21. davewill

    main panel has 30 amp to garage panel, what are the options

    I have to disagree. Yes, on it's face, the 120v outlet will cover his daily driving, but I can't recommend relying on an existing outlet. 120v outlets are usually chained through other outlet boxes on their way to any particular outlet. I feel that it's important to have a dedicated circuit (of...
  22. davewill

    New 240v outlet pulling 0 amps

    I'm amazed they didn't replace the adapter when they replaced the UMC. Never even occurred to me to ask.
  23. davewill

    Travel charger pigtails I made today

    The adapter only signals the amperage to the UMC. It and the UMC don't really care what the voltage is. The car just measures the voltage right off of the L2 and L2 pins. I'm pretty sure that when third parties make TT-30 adapters, they just start with one of the 240v 30a adapters that Tesla...
  24. davewill

    New 240v outlet pulling 0 amps

    Are you wired into a subpanel, by any chance? If so, it might be worth checking to see if the ground is erroneously tied to neutral in the subpanel. They should remain separate all the way back to the main panel. Yeah, that kind of minor difference should not have any consequence. Did you try...
  25. davewill

    This is the official retrofit of model 3 CCS been announced?

    I would guess it will become orderable as a part after it's been out long enough that they don't need every one for upgrades. After all, sooner or later people will need it as a replacement part rather than an upgrade.
  26. davewill

    New 240v outlet pulling 0 amps

    It's reading the right voltage, which means it used the control pilot (the same pin that signals the amperage) to signal the UMC to turn on the AC pins and the 14-50 isn't delivering the wrong voltage. I suppose a bad ground could cause weird symptoms like this, but the UMC should detect a bad...
  27. davewill

    main panel has 30 amp to garage panel, what are the options

    I'm also inclined to stick with the 20a circuit. That leaves plenty for each of the 120v circuits. I think it likely that the 30a circuit could work, but I don't think it's worth the risk of popping a breaker.
  28. davewill

    Recell: certified replacement battery packs for low-range/bricked Model S

    It means the Tesla will have problems refurbishing packs that have the BMS go bad, and that will reduce the number of refurb packs they have available for warranty replacements. They might have to resort to replacing bad packs with more modern versions of their battery packs. I suppose it could...
  29. davewill

    Installing a level 3 charger at home

    Yeah, we're referring to the same thing I just didn't dig into the nitty-gritty. The idea is that the same EVSE can offer J3400 OR J3068 (see below). I admit to being ambiguous about "big trucks". I could see both situations where enough higher powered stations makes offering 70a single phase...
  30. davewill

    8/2 MC cable -80' run thru attic (40amp charge on 50a breaker)?

    How much of that cable to do you have? If you think you'd ever want a second charging circuit (or one for power tools), you could run two of them while you're at it. Even if two 40a circuits is too much for your box, you can still use load sharing to keep the total draw down to, say, 50-60a total.
  31. davewill

    Installing a level 3 charger at home

    I could actually make a case that the bro-dozers should have higher power chargers on-board...but that doesn't seem to be the trend. I mean, what good is having a high powered charger if nobody has charging stations to match it? We saw that with the 80a and 72a capable MS and MX cars. You could...
  32. davewill

    Charging amps do not return to full 30 on Chargepoint shared charger after other vehicle unplugs

    Well, that photo clearly shows it's the EVSE that's doing it, not the car. It shows the EVSE is advertising 23a and the car is just taking what's offered. So, I suspect it's not a Tesla issue at all, but firmware changes by Chargepoint. I do know that some systems reserve power so that if...
  33. davewill

    Gen3 Wall Connector, ABC, and allowed charging times

    You likely have Sentry and/or cabin overheat protection enabled at home. These features keep the car awake and cause the drain you're experiencing. Only you can know how important it is to keep them on at home. If you turn them off at home, then the drain will go almost to zero. If you really...
  34. davewill

    Travel charger pigtails I made today

    Well, I'll say it. This is selfish. You are abusing the trust of the unit owner by charging the car without permission. If you're so sure they wouldn't mind, then you would ask. But you won't ask because no one in their right mind would tell you to go ahead and drape homemade adapters and...
  35. davewill

    SR LFP, would you get a residence charger in my case?

    You could certainly make the Supercharger work. It's a question of convenience. It is VERY convenient to be able to come home from a hard day's night working over a hot keyboard, plug in, and know the car will be ready to go in the morning. Since you live where they have cold winter weather...
  36. davewill

    Mobile charger - Nema 5-15 @240V

    And if they need an adapter that Tesla doesn't sell, there's always EVSEAdapters.com and others that make adapters for the TMC that don't involve extra connections and defeating the temperature sensing.
  37. davewill

    Has anyone noticed the free charging in parking lots stopping your charging right away?

    A J1772 EVSE can't tell how full your car is. I would assume there is something wrong with them, either an electrical problem, or they are not actually ready for use as suggested above. Are you sure they are intended to be free and public? It's also possible that you have to have an account or...
  38. davewill

    This is the official retrofit of model 3 CCS been announced?

    They CAN do that, we just don't know if they WILL do that. If they don't anticipate selling enough of them, they might opt to just change out charge ports.
  39. davewill

    Will Other Car Companies Standardize Charge Port Location?

    Possibly, although I think we will also see longer cables to help with the situation. The other makers are VERY unlikely to make those kinds of changes until they do a major model refresh. It's just too expensive to make those kinds of body panel and wiring changes. I was on a road trip over...
  40. davewill

    Keeping the USB Ports On?

    Did you try that? There's always leaving a door open, I suppose. BTW, if I was going to be leaving the car on just to get some USB charge, I'd want all the battery banks I had in there charging.
  41. davewill

    Master Thread: Definitive 14-50 NEMA Outlet Guide

    Yes, but if you've grounded the metal box and the outlet, then that should ground the cover.
  42. davewill

    Battery charges to 80% then jumps to 83% 30 mins later

    Nope, just par for the course.
  43. davewill

    Worst (and Best) superchargers (Mammoth, CA is awful)

    I guess I was so happy to have charging there at all, that I wasn't inclined to stare that old nag in the teeth. The real answer for a destination like Mammoth is to have L2 charging at the places people stay or where they park to ski, climb, etc... BTW, I don't go there to ski, either. I'm...
  44. davewill

    Battery charges to 80% then jumps to 83% 30 mins later

    It's a little more complicated than that. Charging to 100% isn't enough by itself. The BMS needs to see the battery in various levels of charge. so it helps to run the battery level down well below 50%, too. All of this is further complicated by the fact that even in the coldest weather, the...
  45. davewill

    Using only the camera turn signal when changing lanes

    Yes. If you adjust them right, you will see the front of a car that is passing you appear in the side mirror just before the rear of the car leaves the rearview mirror. If you can see a whole car in the side and the rear at the same time, you've created a bigger blind spot next to you. People...
  46. davewill

    Battery charges to 80% then jumps to 83% 30 mins later

    Ideally, I suppose, but the calculation of the percentage simply uses the estimated overall total capacity of the battery, not adjusted for temperature that I can tell. Part of the reason for that is that it takes multiple charge/discharge cycles for the BMS to come up with a good estimate of...
  47. davewill

    Using only the camera turn signal when changing lanes

    I don't think there's a rule against them, but I, for one, find it a little annoying. For the record, I use the side mirror and always turn my head as a final check. The image on the screen is in the wrong location since it's only a quick glance back when I'm already looking at the mirror...
  48. davewill

    Constant clicking noise from the front of the car while charging at home on 32a/240v (video link provided)

    Well, I'd either remove that open and closing system they're talking about or get that actuator properly secured. It might not be the problem, but it could be. Unfortunately, I wouldn't be surprised if the noise returned since they couldn't reproduce the problem. If you're lucky, it was just...
  49. davewill

    8/2 MC cable -80' run thru attic (40amp charge on 50a breaker)?

    It will do, but if you think you might ever want to upgrade to a 60a circuit, it would pay to put in 6/2 instead at this point.