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Do you carry your EVSE in the car?

Discussion in 'Model 3: Battery & Charging' started by Glamisduner, Jul 15, 2018.

  1. Glamisduner

    Glamisduner Member

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    In my quest to decide on 14-50 or HPWC some people suggested getting the HPWC so that I can keep my EVSE that comes with the car in the car.

    But do I really need this EVSE in the car? Wouldn't I be stopping at super chargers or other chargers if I am on the road? Just wondering how many people need to keep the EVSE in the car vs just use it at home, and how often they actually use it.

    I also have a 16amp 14-30 EVSE J1772 I could put in the car instead and still save some money using the stock EVSE instead of the HPWC?
     
  2. Doug_G

    Doug_G Lead Moderator

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    I keep one in the frunk, just in case.

    That said, it's less of an issue now than it was eight years ago. You're much more likely to be able to find a Tesla Destination Charger, J1772, or Supercharger.
     
    • Like x 1
  3. P85_DA

    P85_DA Supporting Member

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    My EVSE has never left the trunk of any of my Tesla’s for over 4years ...lol even in the early days of not having many superchargers on long distance travel I used the J1772 adaptor more than anything ...for home I prefer the HPWC for durability and speed of charging
     
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  4. animorph

    animorph Member

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    The UMC is your portable EVSE. I prefer to keep it in the car. I've used it a couple of times at relatives houses to pick up a little 120V charge. It's also insurance against running out of charge during travel (such as a big unexpected detour) or at a destination. The downsides are cost (if duplicated in your garage) and the extra weight.
     
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  5. ewoodrick

    ewoodrick Member

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    I have 2, one that stays at home for charging, lot cheaper and versatile than a HPWC.
    The second in the car. Lots of places where I can use J-1772 or 120V power. My parking lot of the airport is one.
     
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  6. ucmndd

    ucmndd Member

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    in 18 months and 52,000 miles I've brought my UMC with me a grand total of three times when I wanted to trickle charge at a destination I was going to be at for an extended period (AirBNB rental, etc). Between the prevalence of Superchargers (particularly in California) and the J1772 adapter there's really almost never a need to bring your own cable.
     
  7. Travis Denardo

    Travis Denardo VTHokie195

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    I've driven my MS85 40K+ miles in a little over 2 years. I regularly travel 100+ miles for work daily. I only bring my UMC with me on a planned trip of more than 200 miles or so. I've never needed it otherwise. I use the UMC at home as my primary charger.

    As folks have said, the supercharger network has grown and is usually where it needs to be for most travel. I have always managed to find a J1772 charger as well if I wasn't close enough to a supercharger at my destination. I'm on the east coast, it's even more prevalent on the west coast.

    I never found it was worth the extra money to purchase a spare, just to have one in the car. I just always remember it as the last item on a checklist before a trip if I need to bring it. Both kids, check, wife, check, toothbrush, check, UMC, check.
     
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  8. Tdriver

    Tdriver Member

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    Suppose your in real need of a charge and the supercharger you select is down......what to do.....look for an RV park or Ji772 down the road........oops, forgot my UMC........now what?
     
    • Disagree x 1
  9. ucmndd

    ucmndd Member

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    Use the J1772 adapter that I keep in the car at any of eleventy billion public L2 charging stations, which are far more prevalent at this point than RV parks or random outlets.
     
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  10. Canuck

    Canuck Well-Known Member

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    #10 Canuck, Jul 15, 2018
    Last edited: Jul 15, 2018
    I was at my cabin with a HPWC (first Gen) that the 3 decided it didn't want to work with it -- after many attempts. My S was there too so I dug out my UMC and extension cord that I always keep in the S, and plugged it into the stove plug. No go too -- I got the same error message. Worried, I opened up the new UMC (for its first use) and it worked -- huge sigh of relief! If I didn't have the UMC in the car, and an extension cord to reach (from my S), I would have needed a tow or the UMC from home -- but I really didn't think it was going to work so I doubt I would have got it. I emailed Tesla about it and they do know about it -- there's also threads here about it. This weekend, without my 3 taking an update, the HPWC works fine with it. I haven't tried my S's UMC since. I have a first gen HPWC at home and it's always worked (knocked wood).

    In any event, I'm really glad I had it with me but I bet I won't use it much.
     
  11. eprosenx

    eprosenx Member

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    I agree with others that for most people's use cases don't require them to carry around a UMC, but I am a bit of a disaster planning boy scout. I hate to be caught unprepared. The UMC Gen 2 is pretty small, so keeping it tucked in the trunk or frunk is not a big deal.

    In the event of a major emergency I want the ability to charge at any "plug of opportunity".

    I guess it all depends on your use cases...
     
  12. NickFie

    NickFie Member

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    I keep the UMC and full suite of outlet adapters in the frunk. Not really necessary for local driving. Just don’t have to remember to pack it when going more than 100 miles away from home. Also, there are rare scenarios where it could be useful or vital.

    I do add 50-foot 6-50 welder extension cord with dryer plug adapters for road trips.

    I’m a tech over-prepare type. Keep a flat international plug adapter in my laptop backpack though I travel out of the country only once a year. And a flat adapter that provides 3 outlets from a single 120 Volt wall socket.
     
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  13. SpiceWare

    SpiceWare Member

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    Only when I travel. My sister & brother live out in the country, so there are minimal public charging options (she's outside of Orange Grove, TX while he's outside of Nekoosa, WI). Both have installed 14-30 outlets for when I visit.

    Reason for 14-30 instead of 14-50 is the parking area at my sister's is on the back side of their property, far enough from the breaker box that their electrician said to go with a 30A circuit. At my brother's the outlet is at the back of their [used for storage] garage, so when I visit him I also bring the 14-30 extension cord I'd already purchased for use at home (I work from home so the 5-15 in the garage is normally adequate, but I have an unused 14-30 inside the house for the rare occasions I need a faster charge).
     
  14. davewill

    davewill Member

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    I carry mine around, but I honestly don't really need to. The maybe 10 times I've used it on the road over the last 7 years of EV ownership, I anticipated the need and could have put it in the car just for that trip.
     
  15. SSonnentag

    SSonnentag Supporting Member

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    I recommend always keeping it in the car anytime you're on a trip. You never know what may happen and when you may need to pull into an RV park to get a charge.
     
  16. psyrob

    psyrob Member

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    OP, I was wondering the same thing, leaving it at home as my primary charger (installed a 14-50 outlet) and take it for any trip longer than my daily commute.
     
  17. Glamisduner

    Glamisduner Member

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    I think this is the route I am going to go. Everything I spend up until delivery is just money away from the down payment.
     
  18. TexasEV

    TexasEV Well-Known Member

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    #18 TexasEV, Jul 16, 2018
    Last edited: Jul 16, 2018
    There is no reason to keep it in the car. There is no conceivable emergency in which you would need it in your daily driving. Keep it plugged into the outlet in your garage, hanging on a hook, and take it with you on out of town trips. Even then you’re not likely to use it but good to have for emergencies.
     
  19. Uncle Paul

    Uncle Paul Active Member

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    It is a comforting thing for new owners to carry along. After a while you realize that charging is pretty easily managed and that it it is not really needed, except for unusual conditions.
     
  20. Chris350

    Chris350 Member

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    I use mine everyday at the office.... So, it goes with me everywhere....
     

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