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On Parking mode, HV battery bar drop

Discussion in 'Gen 3 Prius Main Forum' started by Tekken, Jul 22, 2020.

  1. Tekken

    Tekken Member

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    What cause HV battery bar drop on Parking Mode?

    No Radio/CD or music on
    No A/C or fan on
    No head light or daylight on.
    Only Screen on and Display on.
    New 12v battery and 12.4 - 12.6v.

    My car in Parking mode for 12-15 mins at Gas station for snack with physical key door locked. Come out and the engine on and i see HV battery only 2 bars left. This is 3 times now. don't know what drain the HV Battery?
     
    #1 Tekken, Jul 22, 2020
  2. ASRDogman

    ASRDogman Senior Member

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    Turn the car OFF when you go inside. You risk the car being stolen. And your insurance company
    may not pay since you left the vehicle running.
    Plus, the car IS running. The inverter is running, the inverter coolant pump is running, it's charging
    the 12 volt battery and it's running all the computers.
    That's why it drains.
     
    #2 ASRDogman, Jul 22, 2020
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  3. jerrymildred

    jerrymildred Senior Member

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    I agree with ASR. Besides what he mentioned, there is power required to hold various relays in position such as the one that connects your traction battery to the rest of the car. All those loads come from the 12v battery which gets charged by the traction battery.

    And then there's how easy it would be for someone to steal your car and insurance not cover it. I see lots of people do that stuff at gas stations and it almost makes me think I'm in the wrong line of work.
     
    #3 jerrymildred, Jul 22, 2020
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  4. Grit

    Grit Senior Member

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    Manual says EV mode, eco, standard & power mode. Power mode available, no such.
     
    #4 Grit, Jul 22, 2020
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  5. bisco

    bisco cookie crumbler

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    how many bars did it drop?

    how many miles on her?

    there is some electricity being used when the car is 'ready', but minimal enough, that depending on your answers, might lead to a possibility of a weak hybrid battery.

    'ready', with the car in park. there is no such thing as parking mode. that terminology is confusing.
     
    #5 bisco, Jul 22, 2020
    Grit likes this.
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