EV Range in Cold Weather

Discussion in 'Prime Main Forum (2017-2022)' started by dave3057, Nov 8, 2017.

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  1. dave3057

    dave3057 Member

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    I did a search and didn’t see anything related to this. I’ve noticed the last few weeks my EV range has gone down from almost 35 miles to just over 30 miles. This might be normal for it being cold out. I don’t really ever use the ac/heat unless to get the defrosters for a minute or two.


    iPhone ?
     
    #1 dave3057, Nov 8, 2017
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  2. priuscatprimeguy

    priuscatprimeguy Senior Member

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    yup, it's normal:cry:
     
    #2 priuscatprimeguy, Nov 8, 2017
  3. huskers

    huskers Senior Member

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    I have noticed the same. It was 23 degrees out this morning. Damn cold.

    Give it 6 months.
     
    #3 huskers, Nov 8, 2017
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  4. bisco

    bisco cookie crumbler

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    expect it to keep dropping, but what about the battery pre heater?
     
    #4 bisco, Nov 8, 2017
  5. Trollbait

    Trollbait It's a D&D thing

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    I thought the Prime's battery heater was more for keeping it above freezing than keeping it at the optimal temperature for charging and discharging.
     
    #5 Trollbait, Nov 8, 2017
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  6. bisco

    bisco cookie crumbler

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    do not know, maybe someone with the manual will chime in.
     
    #6 bisco, Nov 8, 2017
  7. priuscatprimeguy

    priuscatprimeguy Senior Member

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    #7 priuscatprimeguy, Nov 8, 2017
  8. bisco

    bisco cookie crumbler

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    will do, i'll get back to you in a few years.
     
    #8 bisco, Nov 8, 2017
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  9. priuscatprimeguy

    priuscatprimeguy Senior Member

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    I'll be waiting:cool:
     
    #9 priuscatprimeguy, Nov 8, 2017
  10. dave3057

    dave3057 Member

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    IMG_8625.JPG


    iPhone ?
     
    #10 dave3057, Nov 8, 2017
  11. bisco

    bisco cookie crumbler

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    pg. 126) traction battery heater: when the outside temperature is low, and the charging cable is connected to the vehicle, this function automatically warms the hybrid battery ( traction battery ) until it reaches or exceeds a certain temperature.

    only took me 32 minutes.:cool:
     
    #11 bisco, Nov 8, 2017
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  12. El Dobro

    El Dobro A Member

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    What's heating the battery?
     
    #12 El Dobro, Nov 8, 2017
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  13. bisco

    bisco cookie crumbler

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    doesn't say, electric cables?
     
    #13 bisco, Nov 8, 2017
  14. Lee Jay

    Lee Jay Senior Member

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    These ranges are just estimated from the Ev mode efficiencies calculated by the car (5.7 * miles/kWh):

    upload_2017-11-8_19-23-54.png
     
    #14 Lee Jay, Nov 8, 2017
  15. priuscatprimeguy

    priuscatprimeguy Senior Member

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    the act of charging the traction battery is supplying the heat.
     
    #15 priuscatprimeguy, Nov 8, 2017
  16. El Dobro

    El Dobro A Member

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    But, what if the battery's already charged? I'm thinking the car heats the interior, then the battery fan takes the heated interior air and blows it over the battery.
     
    #16 El Dobro, Nov 8, 2017
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  17. bisco

    bisco cookie crumbler

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    this is the great part of a new vehicle, no one knows anything, and toyota won't disclose any more than is in the manual.
     
    #17 bisco, Nov 8, 2017
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  18. dave3057

    dave3057 Member

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    iPad ?
     
    #18 dave3057, Nov 8, 2017
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  19. priuscatprimeguy

    priuscatprimeguy Senior Member

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    Even if it's fully charged. I have taken a measurement with my data logger and noticed when the traction battery heater was activated I saw the same wattage draw. Prime charging status 2-9-2017.JPG
     
    #19 priuscatprimeguy, Nov 8, 2017
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  20. Deleted member 111882

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    So, on cold mornings such as this (24F), I preheated my car using battery, and also had the warm air blowing in the car, which is another penalty to electric driving range. In practice I can get around 23 miles with a full charge in these conditions.
     
    #20 Deleted member 111882, Nov 9, 2017
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