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Charging Speed Reduced on Level 2 Public Chargers

Discussion in 'Model S: Battery & Charging' started by jpwe10, May 6, 2014.

  1. jpwe10

    jpwe10 Member

    Joined:
    Mar 29, 2013
    Messages:
    76
    Location:
    Minnetonka, Minnesota
    I've charged twice at two different public charging stations, one Chargepoint and another at a BP. Both times the car gave me a message that the charge speed was reduced because of "faulty wiring or extension cord". I was getting about 13-16 miles of range per hour versus the 30 or so I should be getting from a level 2.

    Is this normal?
     
  2. jcaspar

    jcaspar Member

    Joined:
    Aug 19, 2013
    Messages:
    826
    Location:
    Sacramento
    Normal if the wiring is bad. Some think the Tesla software is overly cautious but I have not noticed this. 30mph is pretty optimistic for a standard level 2 public charger. That is what I get at home with 40 amps and 240 volts. I usually only get 17-18 mph at public chargers. Most I use are 30 amp, 195 volts.
     
  3. islandbayy

    islandbayy Active Member

    Joined:
    Feb 25, 2013
    Messages:
    2,358
    Location:
    Greendale, Wisconsin
    I'm personally in the boat that says Tesla's software is VERY overly cautious.
     
  4. steve841

    steve841 Active Member

    Joined:
    Jan 17, 2010
    Messages:
    1,580
    Location:
    Ft. Lauderdale, FL
    I own a chargepoint station. I've always seen 19-20 miles per hour across all the recent software releases. So I'm guessing a wiring issue as well.
     
  5. SFOTurtle

    SFOTurtle Active Member

    Joined:
    Jan 21, 2013
    Messages:
    1,072
    Location:
    Los Altos, CA
    We have a Chargepoint Level 2 at my office, and I am charging at 18-19 miles/hour at 30A.
     

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