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True I got a warning too but ignored it because it happened after a rare cold night in San Jose and that is the hardest for a battery. So I am sure the voltage dipped below some threshold and triggered the warning. After the weather warmed back up it did not come back. While the car was in the...

Mine did the same but the 12V battery was probably 4yr old. When Tesla hooked their jumper pack to the car it started smoking and smelled like rotten eggs. The guy said it has the same battery inside the jumper that is used in the car and they need to be replaced every few years.

My car was in the shop for a battery replacement and I pushed back and just last week they said they made a software fix in the shop. Could it have been released over the air and just taken time to adjust? I remember there being a software update just before all my error codes started popping up...

I think you should talk to WK057. WK057 provided information in my thread but I think it would help his case if he fully disclosed what exactly his shop is doing. From what I know with some educated guessing here is what I think WK057 does for a battery replacement. His shop is authorized to...

So far my vehicle is at least functional but I still have doubts about it's long term reliability and I really had to push back on the service center based on what brief information and background I was able to dig up from this forum. Also the only communication they would process was messages...

There have been a lot of messages back and forth with the service representative where I felt like I had to guide them through the repair process. I kept asking them to diagnose the root of the faults and stop "swapping" parts. They replaced the rear drive unit because of the DU Isolation...

Thanks for all the information and honesty you bring to the forum. When I was making a decision on the repair I saw the transportation to and from a 3rd party as a lost cost. Going it fairly blind these failures and repairs really suck.

They just messaged me and said it is a DU Isolation. So some insulation breaks down over time, or perhaps AC leakage, and they are measuring this? I am an electrical engineer that works on battery and brushless motor drives and would love to see some explanation of this. Still two somewhat...

Attaching pictures of error code several days before and day of shutdown. After the vehicle went dark we had to use a booster battery to wake it up and get it into tow mode. Several days later I came back to the vehicle and woke it up again and wanted to grab some diagnostics from the CAN bus...

The car shutdown when I was in park waiting at the service entrance queue. Also under warranty the rear drive was replaced but it was quite a while ago and who knows what I got in exchange. I don’t remember if the replacement was because of noise, thunks or electrical. In their most recent...

(Another HV battery replacement thread) My 2013 Model S was working just fine, then suddenly started throwing error codes. I let it sit for about 5 days looking for options. Ultimately I decided to take it in before my appointment to ask for them to help with diagnosing the messages or...

His website states that they only work on the 85 battery not 60s, their module count and cell counts in the modules are different. Some local salvage yards I called said the 60kwhr packs are rare to see so either there aren't many that where sold or not many that have been salvaged. As for a...

They confirmed the warranty and I told them to go ahead, now I have to wait at least 2 months for the battery to come in.

Thank you for the document link as proof, I will challenge them to verify and educate. This certainly makes the "pill" easier to swallow!

There where some comments about the refurbished battery having a long warranty, that is not the case at least if you are paying for it after your warranty has expired. I was told yesterday, because I am asking for very specific details, that the warranty is 1yr on a part they install...

I have the MCU1 and it was replaced a few years ago for the eMMC so that hasn't changed for me. Are you thinking the MCU upgrade caused a problem?

I started getting errors like that last week then the car started running in "limp" mode. I drove it several more times and after a week, I drove to the Tesla service center because the earliest appointment is end of March. When I got to the parking lot, about 50ft from the service entrance the...

sorry a long time ago I think the "P" stood for production like it was the P12345 serial in the wait queue, yeah just a "40".

I have a May 2013 P40 and my HV battery just failed and I have to say that because my 40 had a 60 battery in it but was software limited I felt great about charging it to 100% of what the system allowed because that had a nice built in 30% margin. So it seems that short of perhaps preventing...

You are very lucky if they replace the battery under warranty. I have a May 2013 and the battery just died and I got the dreaded $24k quote but I pushed them on my options for a refurbished battery and their parts department said those are $11k but none available right now. I think when you ask...

I will push back again and see what they say.

Is this a systemic problem? The MCU on my Model S from May 2013 also just failed. The screen would light up then go out and the touch screen failed constantly. It seemed like the computer was sleeping and waking up. The error codes pointed to a problem with the 3G modem so they swapped it by no...

Sorry to call the wall adapter thing a charger, I dumbed my question down to much. I meant the “mobile connector”. So it seems a few others are seeing the frequent faults. I should probably contact Tesla and see what they say considering the gen 1 has never faulted on the same outlet over 5 years.

3 phase, we can only dream of such a thing in the US.

Well I am an EE and thinking about this a lot. I have an S, received my 3 a few weeks ago and because I thought the 3 would take forever to ship had recently purchased a Pacifica hybrid that also has a 35A charger with J1772 port. What I want is load sharing like the Tesla wall chargers can...

i have a Model S with a gen 1 charger and have never had ground faults. I am getting ground fault errors, 1 flashing red blink, maybe 50% of the time after connecting to charge. I plugged the charger into the same outlet as my S and it still happens. Anyone had a problem like this and found...

Why not make it solid without a center hole? I would prefer a glossy black since the aero wheels are a dark grey. I don’t care to have a Tesla T to plug the center hole. I bought the 18” wheels for ride quality and always planned on removing the aero covers, just looking for a product just...

Glad to see there are still other 40 owners out there. I charge mine every night at 22A and in the morning it still peaks at about 134 miles, depending on the outside temperature. I have never had the service center charge it or balance it, I was hoping the software would do this occasionally...

I fell behind on this thread, but I see the photo. I am always watching the "total energy" column because I am not trying to calculate driving efficiency but total energy consumed by the car. I think it was stated by others that if you take a small number of watt hours and divide by a number...

I see what you are suggesting.... probably all of Tesla engineering is in California and they have never experienced this "spike" either!

I have never seen this "spike" in power when I first start to drive. I looked on the trip summary and the power graph. I even checked again today because my firmware updated last night. The trip summary often starts with an estimated "-0.0" kWh used but just slowly increases as I drive away. We...

Wow, I am surprised that the Quick220 is actually UL listed, has some safety interlocks (relay) and a double pole breaker. This is very different then the suggestion earlier about making your own. Of course 120V outlets are typically shared circuits so it is hard to know how many amps you might...

I bought a power meter to make some efficiency measurements and after only a few days I ran into a problem. I want to try and record the power used during charging and not just drawn from the wall when the car is sitting idle. To do this I unplug the car in the morning after charging is complete...

Let me throw in another piece of information that I just discovered. I put a power meter on my cars outlet to try and determine the cars charging efficiency. So, I drive every day during the week and let the car sit in the garage over the weekend. Since I am trying to focus on charging I try to...

A 240V outlet is protected by a double pole breaker where both poles trip together. If you try to cheat and use individual single pole breakers by bridging between two 120V outlets you can create various safety problems. For example, you trip one breaker but the other is still closed. Now your...

I am attempting to measure this very thing but it isn't easy. If you really want to know the cost you need a power meter on the outlet that the car charges from, don't trust the power reported by the trip stats in the car.

I am not missing anything. My post clearly talks about this under vehicle losses, cooling pumps, fans all add up. Can you charge without active cooling, seems possible, do I sleep in my garage every night to verify what is happening, nope. When I charge at 40A I noticed the fans where running...

I remarked that Tom's data looks fishy. I would like to understand the details about how you and Tom took these measurements. When I quickly scanned through your thread, I could not see any details of your electrical system, the type of meter you used, the layout of wiring in your home or how...

The roadster and the Model S do not behave the same. Also, you can not lump 120V charging in with 240V charging because that is going take a huge hit since the incoming voltage is too low and most likely gets doubled during rectification to DC which is not efficient. I am speculating but this...

After having this problem since i got the car, it seems lately to be behaving slightly differently. Pure speculation but perhaps something is changing on the back-end that is feeding the maps application the road data, because my car software didn't upgrade. I wonder if Tesla is reprocessing...

"White lightning", because it is all white.

I am glad to see that some are on board already with these ideas. I assure you that completing a charge at a specific time is not hard to do, a simple slow PI loop will get you there because the system can measure and adjust very quickly. Also some set their limits at 40, others lower like 20...

I see talks about people wanting to charge as fast as possible all the time just for the hell of it, or because they paid for twin chargers so they feel obligated to use them to the max. Well, I thought I would throw out some information as to why you might want to slow things down. Vehicle...

Now that you guys mention it, I thought I was just imagining that the computer fan was louder after I got .51 earlier this week. I sat in the car as the software upgrade was happening and noticed at some point the fan started spinning, since then I don't think it has every been off. I know...

How about this problem that has been frustrating me. In the bay area I like to stay zoomed out so I can see my whole route and alternative routes and choose the path of least resistance. However there is a point where if you zoom out past it, pretty much everything is just green. It seems that...

15% loss is constant, doesn't matter how fast you fill up the battery. The 15% that turns into heat must be dissipated and that might require active cooling if you charge to fast. Now about the criticizing part. The comments on your page of your build are the kinds of problems I was referring...

Interesting dilema, perhaps there is a problem charging over 60A right now. I read in other threads that there where ground faults or something happening with the HPWC over 60A because of possible voltage sagging. I didn't see anything confirmed. I do have a question, what do you mean by "I...

Let's all hope that the Model S doesn't depreciate like any of those cars on your list! Then I will be a happy owner 10 years from now.

Well, I went to triggered the update and I went from 1.33.38 to 1.33.51 with the same release notes as before. The update must have been minor, I sat in the car during the process and it was strange. I could hear various relays clicking and pumps cycling off and on, felt like I should put on my...

My car was delivered with 4.5 several weeks ago and tonight it prompted me for an update, but to what is it updating? I wish I could read the release notes before it updates.