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What is the fastes way to charge the Roadster on the road?

Discussion in 'Roadster' started by ffylling, May 20, 2013.

  1. ffylling

    ffylling Member

    Joined:
    Sep 15, 2012
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    49
    Location:
    Norway
    What is the fastes way to charge the Roadster on the road?

    Alternatives: (Europa)

    1. 16 A 230V (13A) with standard chargingcable

    2. 32 A 230 V (30A) with additional chargingcable

    3. Is it possible to charge on a Mode 3 Type 2 fast-chargingstation 22kw? Any adapter?

    4. Is it possible to charge on a Chademo- charger, and what speed? Any adapter?
     
  2. Doug_G

    Doug_G Lead Moderator

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    The fastest way is with a Roadster HPC or A 240V 70A J1772 (VIA adapter cable). I don't know if you will find any in Norway.

    30A is much faster than 13A.

    Roadster is not compatible with any Level III charge station, including Chademo.
     
  3. raymond

    raymond Member

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    Towed behind a truck using regen.
     
  4. PRJIM

    PRJIM Member

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    There are thermal limits associated with regen and these usually kick in at around 5 minutes.

    A 1.5 is only capable of max regen of 70A the 2.X are capable of 90A.

    Basically a High Power Wall connector properly set up gives you the same charging speed
    over a sustained period of time.
     
  5. djp

    djp Roadster 2.0 VIN939

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    Yes, but that's 90A at 400V, or 36kW compared to 16.8kW for an HPC. I agree you'll probably burn out PEM or battery after five minutes.
     
  6. efxjim

    efxjim Member

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    I have tow charged at full regen for about 25 min in 80 deg f weather with no evidence of thermal limiting. On level ground at 60 mph. I also drop about 4000ft whenever I leave Lake arrowhead using quite a bit of regen and have seen no limit kicking in. Temps have been over 100f at the top and 115f at the bottom.
     
  7. Doug_G

    Doug_G Lead Moderator

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    Okay, great, so just have yor car towed to Big Bear and drive down the mountain. LOL I don't think that's the fastest way to get charged.
     
  8. PRJIM

    PRJIM Member

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    Strange, I have done a few sustained downhill drives and after a while my Roadster disables Regen (not range mode). I pinged engineering a few years ago about this and that is the answer they gave me.
     
  9. hcsharp

    hcsharp Active Member

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    It amazes me that you and others have actually done this - tow charged for 25 min! Never thought anyone would have the guts to try it! I've always wondered what would happen if you sustained 40kW charging for more than a minute or two. My hat goes off to you.

    Without tow-charging and absent a 70A HPC or 70A J1772, you can make your own portable charger capable of 70A like I did. The challenge comes in connecting it to a power supply. Sometimes I install my own 90A breaker temporarily which is then wired to an industrial plug/socket capable of 100A into which I plug the portable charger. This is much faster than 70A chargers found at 3 phase wired buildings in the US because you can usually get 240v instead of 207v.
     

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