Tesla 14-50, at the campground...ack

[Physicslawyer]

We made it to the campground. We brought the MYP and our Prius Prime. The campground has a 50A, 30A, and two regular household outlets (they told me they didn't have them, but they are here).

I bought the Tesla 14-50 adapter at the service center. I took it out of the box for the first time today. I also got a 15A to 30A adapter from Harbor Freight for the Prius, which we didn't need since they have two household outlets.

Anyway, I have no idea what is going on with the other end of the Tesla 14-50 adapter. It doesn't seem to fit anything! I plugged the Tesla charging cord into the 15 to 30A adapter and plugged that into the 30A outlet. The car says that it is charging at 12A and it will take 11 hours and 30 minutes to go from 234 miles to 286 (100%).

I supercharged before getting here, so we have enough charge to get back to the Supercharger, which is 30 miles away. This is not an emergency, thankfully, but we had planned on going to WV and using their 50A, and there are no Superchargers. I'm happy to find out here that I have a problem instead of the middle of nowhere!

I left the car in camp mode since we have a 12V cooler in the sub trunk. We bought the Alpicool K25, which fits perfectly in the sub trunk. I have the sub trunk opened a few inches to vent. It worked great going from PA to OH. We plugged it into the room at the Airbnb we got (to have somewhere to go besides the back of the car!). It's been working out so far.

I'm getting 0 miles per hour.

Does this charge rate seem correct at 30A??

Any idea what is on the other end of the Tesla 14-50 adapter?

Pictures attached!! Thanks all!!

 

[nate704]

It will take very long time even with the supercharger to go from 80% to 100% due to Tesla's charging curve. (please correct me if it is not the case).

 

[Physicslawyer]

Does the 12A look right at a campground 30A plug? Any idea about the 14-50 end?

I know it takes a while, but 11.5 hours to charge 50 miles on a 30A campground outlet? That doesn't look right.

 

[snellenr]

The 30-amp socket (TT-30) should be 120 volts, not 240, so it's going to be much slower than if you used the 14-50 adapter with your mobile charger. The 14-50 socket is the one on the left side of the panel - you should be able to plug into it with the adapter you described. The 30 & 50 amp sockets might be set up so that only one is active at a time - try turning on/off the breakers above them so that you're just powering the one connection that you want to use...

 

[YNoVA]

Why are you using an adapter from harbor freight? Can't you just plug the Tesla 14-50 into the outlet without the adapter?

 

[skydve1]

The NEMA 14-50 adapter with the Tesla Mobile Connector (charger) will charge your car at 32amps.
As someone else pointed out, the 14-50 is the one on the left.

 

[norazi]

You are only charging at 12a/120v because you are plugged into the 30a outlet via a 15a adapter. You should be using the the 14-50 adapter plugged in straight to the Tesla charger.

 

[snellenr]

Also - if you've got the "standard wall plug" adapter plugged into the 30 amp HF adapter, the car will look at the Tesla adapter and say "ok - 15 amps it is!" -- in which case, 12 amps (80% of 15 amps) is exactly what you'd expect.

 

[mikemarmar]

Some confusion here. The 14-50 adapter you bought connects directly to the tesla mobile connector. Unplug the mobile connector, and pull the regular 15amp adapter straight out from the mobile connector brick. The 14-50 adapter should fit.

As for the 30a plug, you are using the 15a adapter on the mobile connector, so it will only pull 12a even though it is connected to a 30a plug.

EDIT: if you wanted to get the full 24a from the 30a plug you would need an appropriate adapter such as this one: TT-30 Adapter for Tesla Model S/X/3/Y Gen 2 – EVSE Adapters. You can also use a 14-50 to TT-30 adapter for EVs such as TT-30P to NEMA 14-50R Adapter for EV Charging Only – EVSE Adapters

 

[Physicslawyer]

The 30-amp socket (TT-30) should be 120 volts, not 240, so it's going to be much slower than if you used the 14-50 adapter with your mobile charger. The 14-50 socket is the one on the left side of the panel - you should be able to plug into it with the adapter you described. The 30 & 50 amp sockets might be set up so that only one is active at a time - try turning on/off the breakers above them so that you're just powering the one connection that you want to use...

The one end fits in, the part that goes into the outlet. The other end is life's mystery. I don't know what that goes to. This is the mystery end:

 

[norazi]

The one end fits in, the part that goes into the outlet. The other end is life's mystery. I don't know what that goes to. This is the mystery end:

That goes into your Tesla charger directly... Just yank out the current plug that looks like it fits in a household 120v outlet.

Just look at the 14-50 adapter and then the Tesla charger very carefully and it should be pretty obvious how it works.

 

[snellenr]

The one end fits in, the part that goes into the outlet. The other end is life's mystery. I don't know what that goes to. This is the mystery end:

Like this...

 

[Physicslawyer]

Why are you using an adapter from harbor freight? Can't you just plug the Tesla 14-50 into the outlet without the adapter?

That was the plan. Look at the end. It plugs into nothing! Unless I'm missing something, I don't see what to do with it.

 

[Physicslawyer]

Like this...

View attachment 833497

Oh my gosh, thank you all. I will go back and try this now!!

 

[MP3Mike]

That was the plan. Look at the end. It plugs into nothing! Unless I'm missing something, I don't see what to do with it.

Like others have said pull the 5-15 adapter out of the UMC, and then plug the 14-50 adapter in it's place.

 

[Doublea88]

Yea the 14-50 plugs into your original charger. Just take out the standard one it comes with and plug your new 14-50 that you bought into it. Then plug directly into the 50amp on the campground port on the far left.

 

[Physicslawyer]

And, it's plugged in! I would not have thought that part came out. It's now 2.5 hrs and 32A.

Thank you!!!!!

 

[YNoVA]

And, it's plugged in! I would not have thought that part came out. It's now 2.5 hrs.

Thank you!!!!!

It does seem like it doesn't come out considering how hard you have to pull, but that's how you swap adapters.

 

[Physicslawyer]

You people are amazing. I really appreciate it!!

 

[Physicslawyer]

Good to go!