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Range Trip & Superchargers

Discussion in 'Model S: Battery & Charging' started by Robbo, May 25, 2013.

  1. Robbo

    Robbo Member

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    Location:
    Fairfield County, CT
    Hi all,

    I ordered my 85kw S earlier this week and am super excited. This forum proved to be a great resource in researching the vehicle.

    I live in southern Fairfield CT (first county over the NY border) and several times a year make the trip up to Foxwoods Casino for poker. Making sure the S could make this 210 mile round tip was one of the comfort thresholds I had to cross before buying the car. Now I am wondering about the optimal way to make the range trip. I have not seen or heard any info on charging stations at Foxwoods so I can't count on getting a charge while there.

    The way I see it, I have 4 options:

    1. Range charge and don't worry about range (but potentially "stress" the battery)
    2. Standard charge and drive 55 (may still be cutting it close in cold weather or if I overnight)
    3. Standard charge and "top off" at the Milford Supercharger about 40 miles from my house
    4. Standard charge and "half charge" at the Milford Supercharger on the way home

    I drive right past the Milford Service area on the way.

    Based on what I have read, I am guessing #4 is probably optimal because the charge will be quicker than #3, but curious what those with real experience think.


    85 KW | Red w/tan leather | Tech Pkg | Sound Studio | Air Suspension | Piano Trim | Dual Charger | Pano | Reserved 5/21/13 | Finalized 5/21/13 | Est Delivery Late June | Delivery Button TBD | Delivery window TBD| Delivery TBD
     
  2. kcveins

    kcveins delivery 2/7

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    If you are making this trip only 3-4 times a year, I would do the range charge, drive the way you want and know that you have the backup of the Supercharger on your way home. I don't think this would stress the battery much. If you did this weekly, I might have a different opinion.
     
  3. nikwest

    nikwest Member

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    Munich, Germany
    You can do 4 once you've done the trip a couple of times, but I would certainly do 1 and still have the option to use the supercharger if necessary on the way back.

    I recommend to always range charge shortly before a longer trip. It's not going to hurt the battery and I prefer to be safe than sorry.
     
  4. JohnQ

    JohnQ Active Member

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    Redding, CT
    +1 (for number 4). Drive there and back at your normal speed then charge in Milford for whatever you need to make it home.

    And don't forget adverse weather. Dropped my wife at the airport this morning in the rain and energy usage was up at least 15% over normal levels. Range charge, try and make the trip, stop at the supercharger if needed.
     
  5. Mike_Schlechter

    Mike_Schlechter Model S - P457

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    Location:
    Weston, CT
    I've done to trip from Weston. Get the ReCarGo app (really useful, especially when you are getting a feel for range with how you drive) so you can find a charger near the casinos if you are worried, or even ask you hotel if you are staying over if they have a 110 you can plug in at. Range charge to get there, so you can enjoy the drive - and even top off at Milford both ways to really kill off any range stress.

    Also, the Nissan dealer in Groton is happy to let you borrow their SAE J1772.

    Enjoy and good luck!
     
  6. gregincal

    gregincal Active Member

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    Location:
    Santa Cruz, CA
    Range charge doesn't stress the battery in any significant way. Storing the car with a range charge is bad for the battery, which is why you should only range charge when you need the range, not all the time. If you need the range, then range charge and don't worry about it.
     
  7. MikeC

    MikeC Active Member

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    If I'm understanding correctly, you have a 210 mile round trip and a Supercharger 40 miles from your house on the way there. I would standard charge and just top off at the Supercharger on the way there - you'll then have 240 rated to go 170 miles (with an option to charge on the way back home). We're only talking 130 miles that you will be driving between Supercharging stops, right?
     
  8. Robbo

    Robbo Member

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    Fairfield County, CT
    You are correct on the miles -- 40 to the Supercharger --> 65 to destination --> 65 back to Supercharger --> 40 back home.

    Forgive my ignorance (I don't have my car yet) -- but I thought if your charge level is more than 50%, the Supercharge is on the slow side. How long should it take to Supercharge a 65% battery up to 100%? When you use a Supercharger, do you still choose between standard and range charging?
     
  9. napabill

    napabill Active Member

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    Don't even think about it, range charge (100%) timed to complete at your departure time. Drive 65mph, and enjoy yourself. Can decide on Milford on the return, if needed or if you want to load up on free electrons!
     
  10. MikeC

    MikeC Active Member

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    Yes, at the higher end of the range it does slow down - I would estimate instead of getting 280-300 mph back when you are at the low end of the battery, it will be about 200 mph if you are at 200 rated miles, maybe slowing to around 150-175 mph by the time you get to 240. When you are range charging to 265, that's when it gets slow (I was getting 30 mph at 266, if I recall).

    If it was me, I would stop at the Supercharger on the way there for 15 minutes to get back to at least ~220 rated for the 170 miles you'll be going. This gives you a 50 rated mile buffer which should be plenty. Plus, this way you'll be able to confirm that Supercharging works on your new car - better to find out it doesn't when you have 200 rated miles than 20. You can stop for another 15 minutes on the way back if you need to, which I doubt you will.

    This is coming from someone who loves to Supercharge and has only range charged twice. I think there's an impression that you have to wait an 1+ hour for a full battery charge if you Supercharge, but the best way for me is to just stop for 30-45 min - stretch my legs, use the bathroom, get a drink - and you'll have enough to make it to the next Supercharger, always staying in the lower range of the battery for the fastest charge.

    Edit: Yes, on a Supercharger you choose between standard and range charge the exact same way.
     
  11. Plug Me In

    Plug Me In Member

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    I would range charge (see other posts about not worrying about battery effects) drive like hell or however it is you want to drive, then stop at the Supercharger if needed on the way home. Most of the time, except for extreme weather, you'll make it home without a stop. Vampire losses at the casino only add up if you're staying a really long time.
     
  12. jkirkebo

    jkirkebo Model S P85+ VIN 14420 EU

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    +1 to this. Definately do a range charge. No point in wasting time to SuperCharge on the way up. Do the SC on the way home if remaining range seems a little bit too close for comfort or you need spare range for other errands when you get home.
     
  13. Puyallup Bill

    Puyallup Bill Member

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    In the words (perhaps paraphrased) of trippers more experienced that I: "For a road trip, always range charge, always."

    Although I don't think we know the true SOC Tesla allows in range mode, I am confident it is never allowed to reach the 4.2 volts per cell maximum.
     
  14. JohnQ

    JohnQ Active Member

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    Depends, the vampire loss from your wallet can be pretty quick. :wink:
     

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