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  1. eprosenx

    Jump-Starting 12V Battery Charger PSA

    I am very curious how a firmware update could change this behavior? I have always assumed that the wires were to a solenoid and you needed a source sufficient to pop the solenoid. If they are just a signalling method, then some other power source would be required to actuate the solenoid which...
  2. eprosenx

    Convert NEMA 5-20 to 6-20?

    Most likely the wire in the wall is Romex (NM-B) 10 gauge. I will assume as much for this post. So yeah, in the panel you will take the neutral wire that is landed on the neutral bus (likely is common with the ground bus in your main panel) and “permanently relabel” it to black or red in color...
  3. eprosenx

    Wall Connector Installation Report - 60a using EMT - Parts List

    Glad you liked it! It was at a friends house that I don’t have immediate access to sadly…. I might be able to get them to measure it tomorrow but no promises. :) Note this was a Gen 2 wall connector and so all bets are off with Gen 3…
  4. eprosenx

    Supercharger - Hillsboro, OR

    The nav system says one unit is out of service. Anybody know which one it is? I am here right now and was going to tag it with a label so folks knew not to use that one… It drives me crazy that Tesla knows one stall is down and shows that on the nav but yet they don’t tell people which stall...
  5. eprosenx

    HELP! Getting 0-1kw from 200 amp service on 110v

    Lol, it is as if you are channeling the NEC code writers. ;-) As of more recent codes you now are mandated to have “multi wire branch circuits” (shared neutral circuits) breakers tied together with handle ties so that when turning off one circuit you are forced to turn off the other at the...
  6. eprosenx

    HELP! Getting 0-1kw from 200 amp service on 110v

    I also never said I didn’t do it hot. :-) To be honest, I have done more hot work than I probably should and without always the proper PPE. The more I learn the more I realize how certain things have been dumb. (arc flash protection gear exists to keep you from getting injured, better just...
  7. eprosenx

    HELP! Getting 0-1kw from 200 amp service on 110v

    Oops, I responded before seeing this post. Yup. This is a classic “loose neutral” situation. FWIW, if you had a way to connect to a 240v circuit you would not have an issue I suspect. 240v connections don’t use the neutral which is probably what is broken. Could of had the electrician wire...
  8. eprosenx

    HELP! Getting 0-1kw from 200 amp service on 110v

    So lots of discussion in this thread, but I feel like I need more data. When you first plug in and the instant it shows the voltage, what does it show? Then can you show/explain how the voltage changes as charge current ramps up? Indeed I would first assume there is an issue on the circuit...
  9. eprosenx

    Convert NEMA 5-20 to 6-20?

    Interesting. I don’t know what caused this heat for sure. I would first suspect it was due to a loose connection from the wire to the screw, but as you point out it could also be an issue between the plug blade and the clamp in the receptacle. With these photos I can’t tell which (and even if...
  10. eprosenx

    Convert NEMA 5-20 to 6-20?

    Nice pictures. I am guessing that the screw was not torqued down enough or that insulation was caught under the screw. This causes heating obviously. This is a great example of why quality work is so critical and why I don’t recommend charging EV’s on daisy chained 120v circuits. Too many...
  11. eprosenx

    Supercharger - Myrtle Creek, OR

    So I know this area *extemely* well. The only chainsaw shop I trust to sharpen my chains is in Myrtle Creek and my friends own a bunch of property outside of Riddle Oregon so we use that freeway exit all the time. I will be down there next weekend and will try to do some scoping out. Either...
  12. eprosenx

    Wall Charger Tripping AFCI's on Other Circuits

    I have an idea: AFCI breakers have electronics in them that can detect arcing within a circuit (typically caused by a loose connection). I am wondering if you have a loose connection somewhere on the main feeds to your panel, in the meter base, or even more likely, outside the home between...
  13. eprosenx

    Battery Pack Extender - Drop in Truck Bed

    Sorry, old thread. But this is precisely correct. The ability to onboard a small generator with a fuel tank would be extremely versatile. Not having to carry the weight always is huge. Sadly, the economics for this probably don't work out. Though actually, having a small generator...
  14. eprosenx

    Supercharger - Tumwater, WA

    This was just posted in the Portland Tesla club Facebook group.
  15. eprosenx

    NEMA 14-50 is dead - all hail NEMA 6-50

    What you have is actually a “sub panel” which then has a 50a 240v circuit and a 20a 120v circuit in it. Nothing to see here. Totally legit. No issues (one might argue a load calculation issue if it is only fed with 50a in total, but the argument would be that they are never used at the same...
  16. eprosenx

    Scheduled Departure Charges Prematurely

    Yeah, Tesla is trying to be “nice to the grid” here by finishing its charging by 6am (so it does not hit the grid during “morning warmup”), but this frankly pisses me off. I am not on TOU pricing and I have a lightly loaded 200a service on a transformer with plenty of capacity in a neighborhood...
  17. eprosenx

    2nd Gen mobile connector "ground loss"

    My assumption is that the ground wire from the EV receptacle is not connected either at the receptacle end OR at the panel end (sounds more likely). Note that if your electrical panel is the “service entrance” then the neutral bus and ground bus are equivalents as neutral and ground are bonded...
  18. eprosenx

    2nd Gen mobile connector "ground loss"

    Whoh, this is seriously bad. Somehow you have a disconnected ground or perhaps ground and neutral conductors not properly “bonded” (which should only happen back at the main service entrance). The fix is probably not difficult here, but it may require an electrician if you are not comfortable...
  19. eprosenx

    Supercharger - Hillsboro, OR

    I am here now. All lights are on now. Four cars plugged in spread across the four supercharger cabinets. All appear to be working. The NAV says only three stalls available. I wonder if their system thinks one pedestal is down and also a full supercharger cabinet. That math adds up. Also...
  20. eprosenx

    Supercharger - Hillsboro, OR

    Can you say pent up demand? Need to get those last four chargers online. I drove to the coast last night and I am glad I charged as soon as I got here. Power went out last night to most of the Northern Coast (transmission line failure). Glad I charged as soon as I got here!!! I may test the...
  21. eprosenx

    Supercharger - Hillsboro, OR

    Fatal accident. :-( Fatal crash on Hwy 26 in Washington County
  22. eprosenx

    Supercharger - Hillsboro, OR

    I finally got a chance to test these superchargers last night. While my M3 was too full (78%) and the battery was too cold to get any decent charge rate, a M3 rolled in (after a massive detour on Hwy 26 in the coast range) with only 2 miles to empty! They hit 186kW at 772 miles an hour! So...
  23. eprosenx

    Supercharger - Hillsboro, OR

    Yeah, these are useful for hitting the beach for a lot of folks (that may be traveling from farther away than Portland). But frankly, they will be used mostly by locals. It is super critical to have supercharging capabilities locally for folks in living situations that don’t allow for charging...
  24. eprosenx

    Supercharger - Hillsboro, OR

    Note that there have been reports that the working chargers are only doing 34kW. Unclear if this is due to local folks with cold/full batteries testing it or if it is due to some issue (maybe they are not fully commissioned yet either). Some folks also reported they were not charged for the...
  25. eprosenx

    Supercharger - Salem, OR

    Stopped by a couple of hours ago. Still same status. Utility power is clearly on, so just need to get those charge point units provisioned and then flip on the Tesla Superchargers is my guess! Hillsboro sadly does not have the utility power on it would seem (ChargePoints are off). Perhaps...
  26. eprosenx

    Supercharger - Hillsboro, OR

    Intercept work is complete. Trenches are back filled. It sounds like power is hot all the way to the main disconnect. If that is true, someone just has to come out and turn it on and test it! (I am not sure if commissioning is done by Tesla or by contractors) This thing is stupid close to...
  27. eprosenx

    Supercharger - Hillsboro, OR

    As of last night when I stopped in they had dug out to do the intercept of the primaries but they had not yet actually done the intercept. Transformer is also not set. This site is just about ready to rock and roll.
  28. eprosenx

    Supercharger - Hillsboro, OR

    Switchgear is in! Rectifiers are in! Wire is pulled (well it jammed to the last one so they will come back to fix that). Primary voltage intercept vault is in. Someone said PGE is coming Tuesday to do their work. No transformer yet, but someone else got a picture of the pad it sits on next...
  29. eprosenx

    Supercharger - Hillsboro, OR

    Yeah, I was voting for one exit further West (Cornelius Pass) in the back of the Freddy’s parking lot close to Panda Express. You need to put them places with amenities (food, shopping, bathrooms), so that was the last exit you could do it at (though brookwood is developing now too). But I...
  30. eprosenx

    Supercharger - Hillsboro, OR

    Sorry for the bad nighttime photos, but some of the underground materials have shown up on site! (The pedestal bases, etc...) I suspect these crews go from one site to the next production style. I suspect they have this process down! The long lead time will probably be the utility work from...
  31. eprosenx

    Master Thread: Definitive 14-50 NEMA Outlet Guide

    Yea exactly! Also, modern aluminum wiring used in houses is a different alloy that does not have as much thermal expansion and contraction as the stuff from the 70’s. With proper installation and devices (receptacles) and the new alloy we probably could use aluminum for more things in houses...
  32. eprosenx

    Problems charging at 110v on GFCI circuit

    Lots of comments: First, I would want more than 120v charging at home personally (also the Tesla would take the entire 120v circuit and limit your ability to use it for other things at the same time). A dedicated circuit is the way to go. As far as the instant trip you are seeing, it is...
  33. eprosenx

    Supercharger - The Dalles, OR

    That is really sad about the fruit. :-( I had been looking forward to it. I think doing some Tesla work on the side would be fun, but my $dayjob building datacenters is too lucrative to consider a change. :-( Someone beat me to installing a Wall Connector at one of the places we stopped...
  34. eprosenx

    Supercharger - The Dalles, OR

    Yeah, I am really curious what causes the different outages. I wish I could find a way to become certified as a limited maintenance tech for superchargers. I keep a pretty good set of electrical tools in my car all the times and I would love to be able to inspect things, reset breakers, swap...
  35. eprosenx

    Installing Wall Connector in Residential Building Basement

    If your meter is indeed all the way up on the 8th floor, then getting something fed off of it to the basement is indeed likely infeasible. With that being said, all hope is not lost. EV’s are the future and all buildings need to deal with this. So most likely, some solution off a different...
  36. eprosenx

    14-50 Wall connector over heating

    Yeah, that voltage drop is bad. I can nearly guarantee that you have a loose connection at the receptacle. Kill the breaker, test to make sure it is off, and then open it up. There is a good chance you will have to replace the receptacle and you might even have melted insulation off the wire.
  37. eprosenx

    Install Estimation High

    The more I think of this, I likely would inquire about replacing the entire inside panel as well. It is the same age and while doing the outside panel would be good in many ways and would give you plenty of capacity for the Wall Connector, your inside panel is past its lifespan as well. Even...
  38. eprosenx

    Install Estimation High

    I have not studied your photos in great detail, but yes, I concur. I would not want to touch the existing setup. It is time for a service upgrade. Replacing the outside bits with a new meter main is a great way to go. (eventually replacing the inside bits would be good too, but they are not...
  39. eprosenx

    Gen 3 Wall Connector

    Sorry for my delayed response. I did briefly review the Wall Connector Gen 3 guide and I did not see anything that said it had to be hard wired (pretty certain this was more explicit in the gen 2 manual). So yeah, it might not be in contradiction of the manual and hence might not violate UL...
  40. eprosenx

    Gen 3 Wall Connector

    It is not to code as you are required to follow the manufacturers directions which require you to hard wire it. Specifically, all the Tesla items with plugs on the end (UMC Gen 2 and the Corded Wall Connector) have temperature sensors built into the plug end to detect bad connections before...
  41. eprosenx

    Model 3/Wall Connector charge current limited to 16 Amps?

    Several thoughts: Even in the US we have some cars with 2x16a modules and some with 3x16a modules depending on which one you paid for. The theory is that they just don’t populate the electronics on the PCB for the lower end version. The “European” cars need to be able to handle three phase...
  42. eprosenx

    Gen 3 Wall Connector

    Odd! Do they still both have unique Mac addresses? Did the manufacturer identifier change, or just the end digits? Or both??? That is extremely odd!
  43. eprosenx

    One Tesla charging leg 20F hotter

    You have a loose connection somewhere that is generating heat. It could be at any connection point or even internal to the breaker. So in a panel such as you describe it could be the connection from the Tesla wires to the breaker, internal to the breaker, from the breaker to the main bus, the...
  44. eprosenx

    Model 3/Wall Connector charge current limited to 16 Amps?

    So the question is: Does the EVSE have all the “hots” tied together externally, or do the onboard chargers have the ability to flip between phases? And if they can flip between phases, can just one of them flip or cans two of them? Also, I realized if you tie the hots together (internally or...
  45. eprosenx

    Charge port pin broke off inside HPWC handle

    Yeah so this is a very common issue. We have dealt with it in the forums many times. There are pictures and guides online for how to remove the plastic from the charge handle if it is stuck. Some have heated up needles or drill bits with a candle and jammed them into the stuck plastic, let it...
  46. eprosenx

    Degraded Charge Rate

    Looking at the image that he posted, it appears the car is set to charge at 48 amps but it is only effectively charging at 32 amps even though it says 48 amps are available. If it was a failed / unlatched charge port the speed would be limited to 16 amps. This is going to be a defective...
  47. eprosenx

    Supercharger - Hillsboro, OR

    That is fantastic news! It is for a locate request. All the other utilities will come out and mark their stuff so that Blackstone does not hit them while digging for the supercharger. Now the question is weather this locate is for engineering planning purposes, or if it is for actual...
  48. eprosenx

    14-50 Wall connector over heating

    Any chance the heat is being generated by your receptacle and not the wall connector plug? (they may have errantly replaced the wrong item?) Though if the new one is totally running cool then that was likely the issue.
  49. eprosenx

    5-15 extension cord

    ^———— What they said.
  50. eprosenx

    Wall Charger Overheating? Ghost charging?

    What he said. As to the overheating, it is likely the wires were not properly torqued down in the wall connector or that some insulation was pinched. (or it could be a faulty Wall Connector) You are doing the right thing by not using it. Get whoever installed it and/or Tesla to fix it...

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