Page 3 of 21 FirstFirst 123456713 ... LastLast
Results 21 to 30 of 206

Thread: No Supercharging for 40Kwh :(

  1. #21
    Member
    Join Date
    Sep 2009
    Location
    Seattle, WA
    Posts
    968
    Quote Originally Posted by GSP View Post
    The Leaf, the Mitsubishi i, and probably the Spark EV all offer DC fast charging with smaller packs than the 160-mile Model S. I doubt there is a technical reason that prevents Tesla from offering this.
    You mean Spark EV might have the new SAE QC plug ? I guess that is a possibility if GM really wants to push that "standard".
    MY11 Leaf : Feb-2011 to May-2013, MY13 Leaf : May-2013 to ?
    http://twitter.com/EVNow

  2. #22
    TSLA will win Norbert's Avatar
    Join Date
    Oct 2009
    Location
    San Francisco, CA
    Posts
    4,349
    Quote Originally Posted by EVNow View Post
    BTW, my impression is people getting the 300 mile model are saying it is OK for 160 mile model not to have QC. I'm interested in hearing what people who reserved a 40kWh "160 mile" model think about this. I can't beleive they are happy about this turn of events.
    I think it is disappointing, although I already had doubts that the smaller packs would be able to support 90 kW, and made some posts here about that. There were also some hints in recent months from Tesla in this direction, but I assume they wanted to make a comprehensive statement and not cause a lot of discussion, back and forth, before they knew what exactly they want to do and offer. There seems to be a still ongoing process as the supercharging option for the 60 kWh pack is still "TBD". For example, perhaps they weren't sure whether to offer it for the 60 kWh pack, until recently. They may have done some extensive testing before making these decisions.
    Buying an EV is one thing, being able to drive it beyond city limits another...

  3. #23
    Member jimbakker666's Avatar
    Join Date
    Oct 2011
    Location
    Boulder, CO
    Posts
    182
    Quote Originally Posted by qwk View Post
    I don't think anybody is saying it's OK. I think that most are saying it was inevetable due to the smallish pack and battery chemistry.

    I for one think that this is a mistake. Tesla would sell more cars if they offered the supercharger charging at a lower rate for the base cars.
    As a person with a 160 reservation I will confirm that, at least from my perspective. If I can regain my mileage quickly, then I find much more utility in my vehicle. I don't see much point for a family sedan when we can't really go anywhere meaningful. We're literally restricted to a sub-80 mile radius in this vehicle unless we're going somewhere where we can charge overnight.

  4. #24
    Now is the time to directly give Tesla your feedback and tell them you *need* fast charging on the Model S variant you would consider buying - and if you would cancel your order if it is not.

    If they are considering offering Chademo support, then push them to do so.
    If they are not, there still is time for them to do something about it.

  5. #25
    Member Tommy's Avatar
    Join Date
    Mar 2010
    Location
    The great OC
    Posts
    874
    I think we Americans just got a dose of what our European friends have been clamoring the past few years with Tesla over the need for fast charging via 3 phase.

  6. #26
    Member
    Join Date
    Sep 2009
    Location
    Seattle, WA
    Posts
    968
    Quote Originally Posted by Norbert View Post
    I think it is disappointing, although I already had doubts that the smaller packs would be able to support 90 kW, and made some posts here about that. There were also some hints in recent months from Tesla in this direction, but I assume they wanted to make a comprehensive statement and not cause a lot of discussion, back and forth, before they knew what exactly they want to do and offer. There seems to be a still ongoing process as the supercharging option for the 60 kWh pack is still "TBD". For example, perhaps they weren't sure whether to offer it for the 60 kWh pack, until recently. They may have done some extensive testing before making these decisions.
    It would be useful to get a direct comment from Tesla on the reason why they didn't allow for a lower powered QC for the 160 mile pack. Technically that should be a very simple thing to do, assuming the packs can't even take 2C charging.

    I wonder whether Tesla is thinking of SuperCharging only in a very restricted long road tour scenario.

    With any EV we are making quite a few compromises. So, people will find novel ways of pushing the EV usage if QC is available. Tesla shouldn't consider just some narrow scenarios.

    On the business side, I think lack of QC may make the base version very unattractive and significantly impact S's market, since the next level is a costly $10k upgrade. In the case of Leaf, more than 80% (IIRC) chose to get the trim that allowed them to get QC. Clearly, the lower the range, the more the need for QC.
    MY11 Leaf : Feb-2011 to May-2013, MY13 Leaf : May-2013 to ?
    http://twitter.com/EVNow

  7. #27
    Quote Originally Posted by jimbakker666 View Post
    As a person with a 160 reservation I will confirm that, at least from my perspective. If I can regain my mileage quickly, then I find much more utility in my vehicle. I don't see much point for a family sedan when we can't really go anywhere meaningful. We're literally restricted to a sub-80 mile radius in this vehicle unless we're going somewhere where we can charge overnight.
    Again, not to belittle the fact that it's not in the car for whatever reason, but if range really is that important why don't you upgrade the pack size? As it stands, you'd drive 2 hours, then stop and recharge for 1/4 that time (30 mins) to get another hour's worth of driving?

    With the 80 mile radius thing, again, buy the car that fits your needs (I think tesla's fact page actually says that outright).

  8. #28
    TSLA will win Norbert's Avatar
    Join Date
    Oct 2009
    Location
    San Francisco, CA
    Posts
    4,349
    Quote Originally Posted by EVNow View Post
    It would be useful to get a direct comment from Tesla on the reason why they didn't allow for a lower powered QC for the 160 mile pack.
    Agreed. I'd guess it is multiple reasons coming together. Perhaps Elon will explain this in an interview, or a blog post on Tesla's website. Also the upcoming Supercharger announcement may clarify the situation. Although that's still a few months down the road.
    Buying an EV is one thing, being able to drive it beyond city limits another...

  9. #29
    Junior Member
    Join Date
    Sep 2011
    Posts
    35
    Quote Originally Posted by stopcrazypp View Post
    Completely different chemistry. The standard Lithium cobalt laptop cells in the 40kWh Model S are probably the worst in terms of charging/discharging C-rates and cycle life out of the battery types being used in EVs. Tesla just addresses that problem by using lots of them.
    Can you explain this a bit more. So the 40Kwh battery pack is different that the Nissan Leaf battery pack. I assume you are meaning to say it is inferior too. Is the 60/85Kwh battery pack significantly different from the 40Kwh battery in terms of chemistry/quality? Are those more comparable to the leaf?
    Last edited by fairlycool; 2011-12-20 at 08:31 PM.

  10. #30
    Senior Member stopcrazypp's Avatar
    Join Date
    Dec 2007
    Posts
    3,476
    To make it explicitly clear, there's a good technical reason why Tesla doesn't want to offer supercharging to 40kWh packs at the full 90kW power. But there is no good technical reason for Tesla not to offer it running at half power (45kW).

    The critical question right now is if there are any differences in the car itself needed to support supercharging. If there isn't any difference, all it takes for 40kWh cars to use the superchargers is a policy change by Tesla (and maybe some tweaks on the charger side at worse), rather than a costly retrofit on the car.
    Because there are tons of crazy people in this world...

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Supercharging Hardware now standard on 60kwh Model S
    By AnOutsider in forum Model S: Battery & Charging
    Replies: 41
    Last Post: 2013-02-18, 07:53 AM
  2. What's a fair price for the supercharging option?
    By VolkerP in forum Model S: Battery & Charging
    Replies: 63
    Last Post: 2012-08-13, 12:29 PM
  3. How much is 40kWh?
    By ElSupreme in forum Off Topic
    Replies: 7
    Last Post: 2012-05-19, 02:53 PM
  4. concerns about the 40kWh pack
    By Rifleman in forum Model S: Battery & Charging
    Replies: 55
    Last Post: 2012-05-10, 12:08 AM
  5. Why no 40kwh battery for X?
    By richkae in forum Model X
    Replies: 8
    Last Post: 2012-03-22, 09:24 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •