Charging question

[Sandiegodoug]

so, I tried to charge new 3 at home. Delivery specialist said I could use the cord from my x, which I leave plugged in. Well, even though plug fits in charge port doesn’t work. Tesla central said I was mis informed and had to use 3 cord to charge 3, but could use new 3 cord to charge my x too. So I switched cords, charged the 3 and plugged in x. Well, x would not charge.
So, am I forced to buy a cord that will charge both? X is a June build.

 

[Saghost]

That's disturbing. I don't understand how it's possible, unless the 3 doesn't support J1772 signalling - but that seems really unlikely. Did you get the J1772 adapter with the car, like you did on the X?

I don't have any answers, but I'll be watching this thread carefully in hopes there's an answer that makes sense somehow.

 

[Sandiegodoug]

I got the adapter to plug into 14-50 plug.
Only thing that bugs me is the miss information given. It might be a setting in my x charging screen to accept cord, but was not told that when I called those in the know.

 

[BrettS]

Something is definitely wrong because the two cars have compatible charging systems. Either EVSE should be able to charge both cars. When you say it doesn’t work, exactly what happens? What message do you get on the screen? Also, are you using the EVSE that came with the cars or a third party one?

 

[Sandiegodoug]

The t on the 3 charging port 3 and the lighted ring on x both red. The x cord thicker.
The 3 uses the gen2 cord, but when plugged into x said something like low voltage.
Just wondering what others in same boat do.

 

[Sudre]

hmmmm.... well at least it sounds like something that can be software updated in the future. I have no clue why the X didn't charge at a lower amperage with the 3s EVSE except the software doesn't know what it is.

The 3 simply doesn't have software yet to know what the older charge cord is. It's already obvious the 3s software is still a work in progress.

Why is the question.

 

[BrettS]

I’m not sure there others in the same boat, because as I said above, they are interchangeable. The low voltage message may be a clue. It’s possible that you do have low voltage that’s barely out of spec. Perhaps the X mobile adapter is more tolerant of this condition with the X and the 3 adapter with the 3. When you are charging what does your voltage read? The screen on each car should tell you.

 

[jeffb]

Yeah, Ive charged my 3 with my older cord from my S, and charged my S with my newer 3 cord. You have something wrong there, its definitely not "just how it is"

 

[Zoomit]

I’m not sure there others in the same boat, because as I said above, they are interchangeable.

Definitely. I wouldn’t suspect either the cars or the EVSEs in this case. There’s something unique about the installation that is causing this.

 

[Sandiegodoug]

I’m not sure there others in the same boat, because as I said above, they are interchangeable. The low voltage message may be a clue. It’s possible that you do have low voltage that’s barely out of spec. Perhaps the X mobile adapter is more tolerant of this condition with the X and the 3 adapter with the 3. When you are charging what does your voltage read? The screen on each car should tell you.

32

 

[Sandiegodoug]

I’ll have plug checked

 

[Saghost]

32

That's the amperage. It should also show you the voltage - mine is about 246 on plugging in, and drops to about 236V under 32A draw.

 

[03DSG]

I’ll have plug checked

Great idea. Could be something as simple as a minor issue with the 14-50. An electrician can load test the circuit and trace down any fault.

 

[cpa]

I have charged our 3 with the UMC from our 2014 S. Worked like a champ!

The only thing that I noticed is that the Model 3 receptacle has a much tighter fit that the S. It takes a little more oomph to seat the plug.

We have not taken the Model 3 UMC out of the bag as yet.

 

[Sandiegodoug]

I’ll try it again

 

[Need]

Is the M3 UMC Gen 2? Did you check the led light on the unit? Is it green or flashing red? Mine flashed red when I first got it.. they have to exchange it because it was defective. If it flashes red, try unplug it and replug it. Then immediately plug the end into the port to see if it charges.

The new MX and MS comes with the same UMC (Gen 2) as the M3 btw. We are lucky and they came out and exchanged it with a Gen 1 one.

 

[Sandiegodoug]

I have charged our 3 with the UMC from our 2014 S. Worked like a champ!

The only thing that I noticed is that the Model 3 receptacle has a much tighter fit that the S. It takes a little more oomph to seat the plug.

We have not taken the Model 3 UMC out of the bag as yet.

Well
I did what you said and really jammed it in
And the x cord started working. Maybe I should file it down.

 

[Need]

Oh so M3 got the same tight port like the late 2017 MS and MX? Then OP you will need to take your M3 to a supercharger to try it. If it is tight already at home, it is going to be really really tight at a supercharger.

 

[cpa]

Oh so M3 got the same tight port like the late 2017 MS and MX? Then OP you will need to take your M3 to a supercharger to try it. If it is tight already at home, it is going to be really really tight at a supercharger.

Yes, indeed!

 

[TTMDLX]

so, I tried to charge new 3 at home. Delivery specialist said I could use the cord from my x, which I leave plugged in. Well, even though plug fits in charge port doesn’t work. Tesla central said I was mis informed and had to use 3 cord to charge 3, but could use new 3 cord to charge my x too. So I switched cords, charged the 3 and plugged in x. Well, x would not charge.
So, am I forced to buy a cord that will charge both? X is a June build.

I am currently using my X-cord on the 3 because it fit my needs where I have the 3 plugged in. I am also using the 3-cord with my X and have had no trouble charging either car.