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Roadster 3.0

Discussion in 'Roadster' started by DrComputer, Dec 26, 2014.

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  1. tvuolo

    tvuolo Supporting Member

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    I'm pretty sure the Drive eO guys did that in 2014 for the Pikes Peak Hill Climb: Drive eO Returns to Pikes Peak with Bespoke Tesla Roadster – Drive eO. We really need to get the plans from these guys.
     
  2. dpeilow

    dpeilow Moderator

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  3. dpeilow

    dpeilow Moderator

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    A heads up for 3.0 owners: It is fairly cold by UK standards at the moment, around 1 or 2 deg C. Yesterday I charged up to 67%, switching off at 8 AM and putting the car into storage mode. By 8 PM the SoC had dropped to 58%.
     
  4. dpeilow

    dpeilow Moderator

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    Yesterday I did my first drive with the 3.0 where I had to dip into the lower end of range mode. Everything was fine on the drive home and I got back with 35 miles ideal / 21 estimated. The VDS battery had gone red but there were no warning messages. I didn't get the "cannot calculate range" warning.

    I plugged in but immediately got a warning that the pack voltage was low and the car was doing a recovery charge. It had gone to standard mode charging and the range was showing 0. It only started charging normally again above 40 miles estimated.

    The only time I had a recovery charge before was on arriving in Edinburgh 7 years ago, when I was driving 14 miles in cannot calculate range mode after the counter passed 20 miles. That was not surprising, but if I am going to get recovery charges at 40 miles then to me that means the 3.0 range is 40 miles less than claimed. I think @Kerios had exactly the same experience.

    20180119_203118.jpg 20180119_203229.jpg 20180119_203729.jpg
     
  5. mpt

    mpt Electrics are back

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    I also guess that you need to get a step-down transformer or ship it over here; I'd look after your shiny new battery.
     
  6. Timothy

    Timothy Driving on Sunshine

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    Weird. I have been down to zero three times since I bought my car in 2011 and never received such a message. The third time was after the new battery was installed. Everything was fine after I recharged so I don't think there was any damage done.
     
  7. gregd

    gregd Active Member

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    @dpeilow, now that you've cycled the battery completely, it would be great to get an updated CAC over to @bolosky for his 3.0 longevity graph. I wonder if there has been a step change in value for yours (hopefully up)?
     
  8. dhrivnak

    dhrivnak Active Member

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    Unfortunately the 3.0 battery behaves differently than the old battery. So it will act differently than your current battery.

    Some quirks are the last 3% of charge takes a LONG time, like 2 hours long.
    The battery charges to a lower state, in standard mode 79% versus 84%.
    So the difference now between standard and range charge is 120 miles versus the old 50 miles.
     
    • Informative x 2
  9. dpeilow

    dpeilow Moderator

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    #2109 dpeilow, Jan 21, 2018
    Last edited: Jan 22, 2018
    I have pulled the logs and intended to send them over after this drive anyway, but strangely the CAC has remained at 212.57 for weeks now.

    EDIT:

    Here are the sections of the log file showing that I got down to 11% real SOC. Showing 35 miles left at that point is not clever IMHO.

    Code:
    01/19/2018 16:07:10 - 01/19/2018 17:46:50 (01:39:40) Drive   83% ->  62%  63.4 mi  40.0 mph  xxx mph   31547.1 mi                  18.9 kWh   6.4 Ah   55.4 Ah   297 Wh/mi
    01/19/2018 18:14:18 - 01/19/2018 20:28:45 (02:14:27) Drive   60% ->  11% 112.6 mi  54.4 mph  xxx mph   31659.7 mi                  38.6 kWh   5.8 Ah   112.3 Ah   343 Wh/mi
    01/19/2018 20:28:46 - 01/19/2018 20:54:21 (00:25:35) Charge  11% ->  11%                                           243V   7A of  7A  0.7 kWh   0.0 Ah    0.0 Ah
    01/19/2018 20:54:43 - 01/20/2018 03:25:52 (06:31:09) Charge  11% ->  41%                                           234V  20A of 30A 29.3 kWh   0.0 Ah    0.0 Ah
    
     

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