Bag of Spare Adapters?

TM now has several adapters for sale. Is there much benefit to buying some or all of them to have on hand when out on the road?

@Musterion - I haven't ever fooled with 240V GFIs before, but that sounds like it will work.

However, I like my solution better -- just don't ever use the adapter for anything but the Model S :).

@shop - looks like you are right. I didn't actually start charging because I only had a 15A circuit and didn't want to blow it. Looks like a bug to me. I'll head on over to the punch list and report it.

Ok so here I am scrounging for power plugged into a TT-30 with my homemade TT-30 to nema 14-50 adapter. I dialed down max amps to 24 amps. It is charging but only at 20a. Maybe there is some kind of limitation for 120v charging that it maxes out at 20a? I guess I can't complain since it is a homemade adapter but it would be nice if that limitation were removed so I could get 24a charging. Has anyone else used a TT-30

I just took a look at the roadster adapter selection and they don't seem to have a TT-30 adapter, so I'm worried that Tesla didn't design the UMC for anything bigger than a 20a draw for 120v.

I installed the NEMA 14-50 adapter in my garage and purchased this adapter so I could also plug my RV into it:

Finally used my 10-30 to 14-50 adapter, and it worked just fine. After getting a full charge in 7 hours, nothing was noticeably warm.

Good to know. Thanks to you and others, I learned to make mine, but have not put them to real world test. My dryer outlet is on 2nd floor, my parent's house dryer outlet is far from driveway as well.

Here is an interesting adapter IF the two 120 volt circuits are on separate sides of the 240 volt main.

God forbid if either of the TT-30's were wired backward. Using this solution requires testing the circuits before attaching adapters. Dialing down the charging amperage to the lowest plug-in is needed.

You have to give credit to the company to provide an adapter for those who need to power their RV and charge the EV at the same time:

Mark Z;
Yeah, that Buddy Box looks like a winner.

Unfortunately, after reading the description, the Buddy Box splits the two 50 amp circuits so the full amperage does not go to either RV. This would prevent 240 volt appliances from being used. On second thought, do NOT use this to charge a Tesla Model S!

The ATL service center has 10-30 and 14-30 adapters, so I am picking them up. My home-made 10-30 adapter was used once, and my 14-30 adapter was never used, but I had them available if I needed them before getting the real ones.

I need an adapter for my generator to be able to charge the Tesla in the event of a power outage. It takes an L14-30 plug. I found this on Amazon - looks like it will do the trick (as long as I lower the charging amperage first):

Any reason why this wouldn't work?

@SJenkins - I think that should be ok, though it says it is rated at 125V -- I would make sure that is just a typo (the L14-30 has two phases plus neutral and ground, so it should be ok) before ordering (and yes, you will need to manually lower the current to 24A).

you think the 20 feet mobile connector will usually reach other people's dryer outlet?

@Hills - yes, at least the two places I frequently travel to - YMMV.

@SJenkins - yes that should work. When you get it, test that each hot from the generator only goes to one hot on the 50A receptacle, but I can't imagine how else they would wire it.

@jat That should be, YWhMV :-)

At the two houses that matter to me, I need 50 feet to reach the dryer outlet(s), which is why I have my 30 ft extension cord, 6 ft home made cord/plug/adapter, and 20 ft mobile connector.
Thus the Tesla adapters don't help me.

So I was at a horse show today and looking around the exhibit grounds I found all sorts of power cables powering vendor RVs and the like. Always being on the lookout for new and exciting ways to charge my MS in an emergency, I looked at what kind of plugs they were using. It was one I had never seen before:

Turns out this isn't a NEMA plug at all, but a "California Style" 50A locking connector made by Hubble - a CS6365 in particular. I guess they are often used for temporary venue power since the connectors are in-line with each other and lock. It provides 120/240V at 50A, just like the NEMA 14-50 that most of us use. So making an adapter shouldn't be much of a problem. Anyways, throwing this out here as yet another plug to consider...

And the TMC forums has yet another power source that you might run into - a marine ship to shore 50A 120/240V pluig called a NEMA SS2-50P. You can just a buy an adapter for this to adapt it to a NEMA 14-50 here:

This reminds me of the reason why I thought all these expensive charge stations were a joke in the first place. Plugs already exist for every voltage and every amperage yet the car makers had to come up with their own totally new plug. I have no problem with Tesla because they offer adapters at reasonable prices. All other car makers want you to purchase a sold separately charger to have installed in your garage.
When you go camping with your Leaf I guess you are screwed as far as charging.

Yeah, I couldn't believe it when I saw that other electric cars needed garage chargers. What for? All they do is give you a huge J1772 plug which is at a reduced amperage to what you can get with a 50 amp receptacle. Once again, Tesla out thinks the competition.

@Sudre,shop - J1772 provides some additional safety measures that a regular outlet doesn't, and most importantly it has one connector that serves all the needs (and communicates how much current is available and negotiates with the car how much is desired) and is waterproof.

Sure, it is more expensive than it needs to be and I would have wished for some latching mechanism controlled by the car, but it is far better than most design-by-committee standards.

As may be, but Tesla's ability to plug into any electrical socket with an appropriate adapter is a major, major win. J1772 for public chargers sure, but no need for home garages.

@shop - all other plugin vehicles come with a mobile charger as well. Nissan's unit is designed for 120V/240V operation, though the firmware on US units restricts it to 120V operation. evseupgrade basically chops off the cord, puts an L5-20 plug/receptacle inline, and updates the firmware to support 240V operation. You can get other pigtails to use any of the plugs that people have made adapters for the Model S, just the same way. So, the only difference I see is that they used a standard connector that can also be used for public chargers instead of a proprietary connector.

One more adapter q?
Would this work for older dryer plugs - looks like this is 10-30 to 14-50 (lower Amp warnings noted)

Still hunting for a ready-made 14-30 to 14-50 any recommendations for someone like me who doesn't want to make one?

@EVbugs - no, that isn't a 10-30, it is a TT-30P (click on the image with the pin diagrams) and will not be usable with the Tesla regardless.

You aren't going to find people that sell a ready-made product for this, because it isn't safe in the general case. It is only safe in the specific case of the Model S, and then only if you manually dial down the current. If you don't want to make one, just buy the Tesla 10-30 and 14-30 adapters and be done with it.

EVBugs - why not buy the Tesla 14-30 adapter?

(Other than the fact that it shows sold out ... again. How hard is it to order a gazillion of these? What do they do, order 10 at a time from the manufacturer?)

Of course that will only work if your Tesla is within 20 feet of the 14-30 receptacle. If it isn't, then you need to make something of your own since no one makes NEMA 14-30 extension cords. My solution if that is your problem is to use a NEMA 14-50 extension cord (since those are available), and a home made 14-50 to 14-30 adapter. Look here for info on how to make these things:

Does anyone know if the Model S can be charged on 277 or 480 single phase?

I seem to remember the UMC being limited to 265V max.

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