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Charging at an RV park with a 50A outlet

Discussion in 'Model S: Battery & Charging' started by MichaelJ, Jun 9, 2018.

  1. MichaelJ

    MichaelJ Member

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    I am going to visit/stay with some friends who will have their RV parked at a RV park and I would like to charge up the night before I leave. Is there anything I should be concerned about when charging at an RV part that has a 50A outlet? Do I assume correctly that the car has a surge protector built in, as an example. Thanks in advance for any helpful advice.
     
  2. Lloyd

    Lloyd Well-Known Member

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    You should have no issues if the park is truly wired for 50 amps. Sometimes the breakers are weak and trip at lower than rated amperage. If it happens reset and charge at a lower amperage.
     
  3. Big Earl

    Big Earl Supporting Member

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    RV park power poles are usually pretty sketchy, sometimes with loose plugs and old wiring. Make sure the plug fits snugly and dial the amps down to about 32 just to be on the safe side.
     
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  4. ewoodrick

    ewoodrick Member

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    BUT, remember, if their RV is plugged in, you may have to disconnect their camper before plugging in. Being disconnected for 8 hours to charge may mean no air conditioning or refrigerators. And plugging into an adjacent site may cause the campground owners some consternation
     
  5. idoco

    idoco Member

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    Two strategies we used when plugging in our Tesla while pulling a camper (Bowlus)

    1. Bowlus plugged into 30A/120V and Tesla plugged into 50A/240V. Depending on whether we were using AC or water heater we would have the Tesla current set for between 20-40A.

    2. Tesla plugged into 30A/120V using an adapter https://www.amazon.com/AC-WORKS-Electric-Vehicle-charging/dp/B06XHDRBBT and Bowlus plugged into 15A/120V (or not plugged in at all).

    As for using a surge protector we use carry both a 30A and 50A protector when traveling with the Bowlus. But it may be overkill to get one just for just one night. And your friends with the RV might let you use one they carry.
     
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  6. MichaelJ

    MichaelJ Member

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    Thank you for the feedback!
     
  7. SageBrush

    SageBrush 2018: Drain the Sewer

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    Could I see a photo of your surge protector ?
    I think what I am imagining is not what you have; and I'm surprised that the EVSE does not protect against surges.
     
  8. idoco

    idoco Member

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    I can't comment on whether the UMC has surge protection.

    Here's a picture of our setup (first picture).
    Tin Poodle: To unhitch or not unhitch...that is the question...
     
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  9. CUBldr97

    CUBldr97 Member

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    thats a cool looking trailer, except the flat front seems to be a "drag" machine, seems like you need a false front to shape it better for aerodynamics.... How was the KW/ per mile?
     
  10. idoco

    idoco Member

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    Thanks. Energy usage on our 3000 mile trip averaged 489wH/mile (best leg 369Wh/mi, worst leg 574Wh/mi).

    Actually it is one of the most aerodynamic trailers on the market.
    Model X Travel Trailer Consumption Analysis

    Designed by someone involved in Spirit of St Louis construction.
    William Hawley Bowlus - Wikipedia
     
  11. SageBrush

    SageBrush 2018: Drain the Sewer

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    Fooled me !
     
  12. Canuck

    Canuck Well-Known Member

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    Someone posted this here:

     
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    • Like x 1
  13. aname4me

    aname4me Member

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    When plugging Tesla into RV pedestal, do you need adapter for 14-50 or does normal home charger adapter work? I am fairly sure the adapter that came with car is not the correct configuration.

    Asking for my 2014 MS (before auto driving hardware available).

    I see on the Tesla sales site an adapter that's 14-50 but Gen 2. I can't imagine my 2014 is Gen 2. I am not home with Bianca (MS) but am camping in RV park in RV. But would love to utilize RV parks for extended road trips into places not served by SC's or Destination Chargers.

    TIA
     
  14. ChadS

    ChadS Petroleum is for sissies

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    In the early S days (2012 and part of 2013?), you would get a 120V adapter and "your choice" of 240V adapter for your Gen 1 EVSE. But almost everybody got the 14-50, and it seems like the closest thing we have to a charging "standard" for 240V outlets, so now everybody (gen 1 and gen 2 EVSEs), at least in the US, gets a 120V adapter and a NEMA 14-50 240V adapter. At least by default; maybe you can still request a substitution.

    If you have a 2014, I would assume that you have a 14-50 adapter with it. But anything can happen, including losing it. You are looking for one like the last adapter in this picture:

    adapters-graphic-all.jpg
     
  15. idoco

    idoco Member

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    • Informative x 1
  16. Rocky_H

    Rocky_H Active Member

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    You almost certainly did get a 14-50 adapter with your original charging cable. My car is a March 2014 old one like yours, and that's what they came with. That is the very reason why Tesla decided to include 14-50 instead of something simpler like a 6-50, it's because in those early days, when there wasn't much EV charging infrastructure, RV parks and campgrounds did already have 14-50 outlets available, so that would give Tesla owners the most extensive charging away from big cities.

    The Tesla store does still sell the 1st generation charging adapters, so if you have lost yours, you can still order one.
     
  17. Rocky_H

    Rocky_H Active Member

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    It is long past time to stop recommending those kinds of adapters that adapt to the wrong level of amps of circuit, which require people to remember to manually turn down the amps in the car. EVSEAdapters started making 1st generation and 2nd generation charging adapters that have the proper resistor inside them so they communicate the proper amp level to the Tesla mobile charge cable, so it sends the right signal to the car. Here is the Gen 1 adapter for those TT-30 outlets at campgrounds.
    TT-30 Adapter for Tesla Model S and X Gen 1
     
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  18. aname4me

    aname4me Member

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    My thanks to all for their input. I just ordered the adapter from the poster quoted below. Really appreciate it.


     
  19. brianman

    brianman Burrito Founder

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    If you need decide to collect some official Gen1 adapters for Model S/X UMC, you can find them here:
    Model S/X Gen 1 NEMA Adapters

    If been tempted to pull the trigger on 10-30 and 14-30 but I've literally never found one of those outlets when trying to charge.

    I think I have a 6-50 squirreled away somewhere.
     
  20. Rocky_H

    Rocky_H Active Member

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    The need for that kind of thing is just kind of going away with how much more infrastructure is here in 2018. I have the big 14-50 extension cord and the 10-30 and 14-50 adapters and such, but even when I went on my 5,000 mile road trip this year, I didn't bother to bring them, because I wasn't going to be far off the Supercharger path. I did stay overnight with my mom and my cousin along the way in Missouri, and certainly could have used their dryer outlets with those adapters, but it just didn't matter. I plugged into regular wall outlets at both places to grab 30 miles or so overnight just because I could, but it wasn't really necessary.
     

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