Also, keep in mind the connector knows which tail it attaches to, and sets max current accordingly. So no matter what adapter you put on with the 5-15 original tail, the max current is 12A.
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Tesla 14-50, at the campground...ack
- Thread starter Physicslawyer
- Start date
Take a look at the assortment of connectors you can use with the UMC (Universal Mobile Connector) from Tesla, lots of options you can use but for the most part you will only likely use the 5-15 and 14-50 adapters.
NEMA Adapter Bundle
NEMA Adapter Bundle
I'd highly recommend the 5-20 adapter as well. On two occasions now we've rolled into national park campsites where the 14-50 receptacle is out of service, and that household outlet becomes the lifeline. Neither are great, but there's a significant improvement to using the 5-20 over the 5-15, particularly if leaving electrical loads on overnight (climate, sentry, etc).
Absolutely. 14-50 and 5-20 are my camping standard set. The 5-20 is used the most, and is much faster than the 5-15 (more than 33% faster because it takes a relatively fixed amount of power to run the car while charging regardless of charging speed).
The 5-20 is used most because my camper uses the 14-50. If we need to charge in a hurry, we can plug the camper into the 30 amp and use the 14-50 for the Tesla.
When would 5-20 be used at a campsite? We have a 30A, 50A and two household three prong outlets at the site.
Those "household three prong outlets" may actually be 5-20 outlets. (If they have the horizontal opening for the blade.)
Is it okay to plug things into them that fit that pattern? We plugged the Prius Prime into it.
Yep, as long as the plug fits without forcing anything you are fine. (A 5-20 outlet is backwards compatible with 5-15 plugs, it can take either.)
I take it there were no issues with the Prius ? Best peace of mind of any vehicle.
These are the four adapters you need for your mobile charge cord. From left to right. And their max charge currents and volts.
14-50. From tesla. 32 amp 240 v.
5-15. From Tesla. 12 amp 120 v
5-20. From Tesla. 16 amp 120 V
TT30. From EVSE adapters. 24 amp 120 v.
12000 ish kilometres camping across Canada experience. Yep, been there.
14-50. From tesla. 32 amp 240 v.
5-15. From Tesla. 12 amp 120 v
5-20. From Tesla. 16 amp 120 V
TT30. From EVSE adapters. 24 amp 120 v.
12000 ish kilometres camping across Canada experience. Yep, been there.
It was able to charge. It gets around 25 miles on electric. In traffic, I get 70 mpg without having a charge.
We were able to get a 15A to 30A from Harbor Freight. That's what I originally used when I at first couldn't plug in the 14-50. How is the TT30 different? I was going to order the TT30, but EVSE were out of stock.These are the four adapters you need for your mobile charge cord. From left to right. And their max charge currents and volts.
14-50. From tesla. 32 amp 240 v.
5-15. From Tesla. 12 amp 120 v
5-20. From Tesla. 16 amp 120 V
TT30. From EVSE adapters. 24 amp 120 v.
View attachment 833814
12000 ish kilometres camping across Canada experience. Yep, been there.
View attachment 833815
How do you like your camper? Which one is it? We looked at the mini max, but it was really small.
The TT30 tells the charge cable (EVSE) that it is a 30 amp outlet and that 24 amps can be drawn. If you just use a hardware store converter the EVSE just sees 120 volts and assumes only 15 amps is available and limits to 12 amps. Using the TT30 adapter from EVSE adapters doubles you charging speed.
We love it and we travel a lot in it. It is a T@B 400 non Boondock. (Boondock is too high).
What is your driving range between stops with the tear drop camper? My wife and I have considered getting one, but are concerned about "real world" range between stops.
Keith
Yes! That is exactly what happened. I was charging at 0 to 1 mph! Good point. When the 30TT is back in stock, I will get one. Would tbT be 2 mph though? Here is what we were getting at 12A.
Attachments
In addition to all of the great info @Webeevdrivers has posted, I'll throw in a caution that you still have to keep track of loads when using adapters of any kind.
I've seen TT-30 (plug) to 5-20 (receptacle) adapters that are only rated at 15A.
There are TT-30 to dual 5-20 adapters on the market - which would be a significant overload if both 5-20 receptacles were used at their capacity.
I've even seen TT-30 to dual 5-20 adapters that are marked for loads greater than 30A!
And there are extension cords with 5-15 plugs on one end and 5-20 receptacles on the other.
So while the short charge cables on the Tesla charger will set the max current automatically, the RV world for whatever reason seems to be a minefield of "just make it work" adapters that can get you into trouble. And the Tesla chargers, as smart as those plug dongles are, can't protect you from everything. So just be aware of what you plug into what, and which part actually determines the maximum safe current limit.
It would be more.
Remember that the "mph" section of your charge status screen is showing how much energy is going into the battery, not how much you are pulling through the cord. Some of that 12A is going to running the computers, the climate system, the battery coolant pumps, the things plugged into your 12V sockets, etc. So what is left (in your case, very little) is what is going into the battery and giving that 0-1 mph of charging.
Going from 12A (5-15) to 16A (5-20), the whole extra of that +4A would be going into the battery pack, as the extra loads are already accounted for.
Going from 12A (5-15) to 24A (TT-30), the whole extra of that +12A would be going into the battery pack.
Not really sure but I’ll guess at 220 ish kilometres. The superchargers are closer than that so it never comes up.
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