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Sudden Loss Of Range With 2019.16.x Software

Discussion in 'Model S: Battery & Charging' started by Dutchmeeuw, Jun 3, 2019.

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  1. swegman

    swegman Active Member

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    You aren’t seriously happy with a 51 kW charge rate at 25% SOC, are you?
     
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  2. Droschke

    Droschke Active Member

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    @Spacey73 is doing much better than me. Imagine how (un)happy I'm.
     
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  3. Pes Filipes

    Pes Filipes New Member

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    interestingly enough, preheating battery via Climate control works with Model 3.
    There is a way how to preheat Model S or X though.
    (Works on my 2019.40.2.2).
    If you turn on charging about 30 minutes before departure the car will first use about 6 kW of power to heat up the battery first and only after that it will start charging. It will give you about 60% regen when the temperature outside is around 0 degrees C.
     
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  4. DJP31

    DJP31 Active Member

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    Whilst I've not tested it personally, I have read from other owners that this is the case.
     
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  5. Kim.T

    Kim.T Member

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    At the current temp. the battery heater in my car turns on 10min before arrival. My guess is that 30C is target temp. Might be that lower temp will result in more pre-heating to reach 30C on arrival.

    The batteri has to be - my guess - below 5C - before the battery heater turns on. I have only seen it 1 time, and there the battery temp was 1,4C - here a charging session with 10kW - data from ScanMyTesla
     

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  6. motocheme

    motocheme Member

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    I have a May 2018 S75D with about 34,000 miles on it. My current battery capacity is about the same as yours as measured on CAN bus and by calculation. We verified that the battery is not capped and is charging to 4.2 V. I have found other threads where many other owners report similar rated range for S75D. It seems that the 75 kWh battery typically experiences this much degradation. Disappointing, but is a different issue from the topic of this thread.
     
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  7. Droschke

    Droschke Active Member

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    #10127 Droschke, Jan 23, 2020
    Last edited: Jan 23, 2020
    Thanks for stating the facts, something we painfully and repeatedly have pointed out to the detractors in this thread. The fact that there is a perfectly clear difference between the normal degradation of the cars' batteries (your car as well as possibly @T3SLA_S) and the manufacturer imposed voltage capping which has impacted so many owners present in this thread and beyond. Your car has lost capacity normally due to the gradual and expected degradation since it still charges to 4.2v/cell. The batterygate packs have lost that same normal degradation, some less some more, as others in addition to a sudden range loss due to an imposed software limit on their vMax to below 4.2v/cell.
     
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  8. Leeboy22001

    Leeboy22001 Member

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    #10128 Leeboy22001, Jan 23, 2020
    Last edited: Jan 23, 2020
    Since 40.2 I've seen a very steady drop in range !.. lost 2 miles since 9th Jan, lost 11 miles in total since November. Been charging from around 40% to 75%.. and not been any higher since the new year.

    I thought the whole point of voltage capping was to reduce battery degradation? I guess not !.. I'm not far from where we was when we first lost the range in May ! :(

    I've also looked at TM-spy, at 48%, cell 25 looks like it's on the downward slide !?
     

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  9. Droschke

    Droschke Active Member

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    You are kidding, right?
     
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  10. Chaserr

    Chaserr Hyperactive Hyperdrive

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    the point was to stop fires. They once mentioned capacity loss as something they were using as an excuse but haven't for a long time because lying to owners about a recall is worse than just hiding it.

    Muggings protect you from misplacing your money.
     
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  11. Leeboy22001

    Leeboy22001 Member

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    I am :) .. but that's how it was sold to us !
     
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  12. Dave EV

    Dave EV Active Member

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    Doesn't look that bad, only 9 mV from min/max at 48%.

    Now grab a screenshot at 90% or more and 10% or less...
     
  13. joltheadq

    joltheadq Member

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    Just got ScanMyTesla and hooked up to check out my BMS. So far 100 SoC reaches 4.1v and my total capacity is 74kwh. Usable is 70kwh. Noticed Module 7 has lower voltages and 8 stays warmer than the rest. Shows the maximum charge rate as upper 80s but the pack is qualified to run 120kw on supercharging according to the model number on the pack. Has anyone with a P85DL or P85D gotten one of the new replacement packs? My P85D won’t take a 350V pack so I wonder what they will use.
     

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  14. Chaserr

    Chaserr Hyperactive Hyperdrive

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    #10134 Chaserr, Jan 24, 2020
    Last edited: Jan 24, 2020
    Excuses mostly. Lose some weight, don't used the AC or heat, et cetera. If you keep pestering them maybe they'll tell you "tough luck you're in a test group we can't fix"

    After recall, it could be anything. 100 if all the 85/90 packs are impacted by the same flaw. A reman 85/90 if they can fix it. I don't think they would have created a new 85 if it could be fixed easily so cross your fingers for a year while the government and courts sort this out.

    MP3mike marked this post "read"
     
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  15. Gixx1300R

    Gixx1300R Member

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    On 1/18/20 I had 60.6kwh on a full usable pack, today that has dropped to 59.4 on a full usable pack. So in less than a week I have lost another 1.2kwh. Rated range was 208 mile at 90%, it is now 191 miles at 90% on a 85kwh battery pack.
     
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  16. MP3Mike

    MP3Mike Well-Known Member

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    Is that something that Tesla told you?
     
  17. Ferrycraigs

    Ferrycraigs Member

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    Are you able to say why your car can’t take a 350V pack? Are you talking about a physical fit, or some other area? I assumed all batteries would physically fit all cars, but wiring looms etc may vary.
     
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  18. Jcarlson

    Jcarlson Member

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    The question is if the pack fuse and rest of the HV system will handle the current required for the power output in case of P85DL.
     
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  19. Matias

    Matias Active Member

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    I believe heating is on, if battery temp is below 8 celsius.
     
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  20. JRP3

    JRP3 Hyperactive Member

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    I'm assuming he means the P85D won't reach it's full performance potential with a lower voltage pack.
     
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