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My new 2005 Prius hybrid battery trouble shooting

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Biopete, Aug 30, 2017.

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  1. ericbecky

    ericbecky Hybrid Battery Hero

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    The headlights are High Intensity Discharge. (HID) Not high voltage.
     
    #61 ericbecky, Oct 17, 2017
  2. jerrymildred

    jerrymildred Senior Member

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    I wondered what he meant by HV headlights.
     
    #62 jerrymildred, Oct 17, 2017
  3. tri4all

    tri4all Member

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    Hi ericbecky. what do you mean with this? wouldn't any discharge involve some kind of voltage drop?
     
    #63 tri4all, Oct 4, 2020
  4. ChapmanF

    ChapmanF Senior Member

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    Some googling suggests that the ballast incorporated in the headlight may feed the bulb around 25kV to strike the arc, dropping to around 80 or 90 V to sustain it.
     
    #64 ChapmanF, Oct 4, 2020
  5. TMR-JWAP

    TMR-JWAP Senior Member

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    The context of the original post was about you could use the 'HV' (actually HID) headlights to act as a load to drain the main HV (hybrid) battery. Eric was just stating the HID lights are not a true HV system load, they work off the 12v system. The 12v system powers the ballast, the ballast fires the HID bulb.
     
    #65 TMR-JWAP, Oct 4, 2020
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