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Rubber tube near 12 battery in 2013 Yaris hybrid

Discussion in 'Toyota Hybrids and EVs' started by vjekobalas, Oct 6, 2021.

  1. vjekobalas

    vjekobalas Junior Member

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    Other Hybrid
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    I've been working on the hybrid battery and didn't take notice of the
    rubber tube (attached photo) near the 12V battery - can anyone tell me
    what it's for ?
     

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    #1 vjekobalas, Oct 6, 2021
  2. Raytheeagle

    Raytheeagle Senior Member

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    That's the vent for the 12 volt battery.
     
    #2 Raytheeagle, Oct 6, 2021
    Byron Casignia and vjekobalas like this.
  3. ChapmanF

    ChapmanF Senior Member

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    The end shown free there (with the ribbed nylon 90° fitting) should be plugged snugly into a matching hole in the top cover of the 12 volt battery, on the side. If the battery vents any products of charging, they go through the hose and out of the car.

    The charging products usually of concern are H₂, which I'm not aware of posing much of a toxicity problem, though there is an explosion problem if it accumulates in a confined space, and H₂S, a very definite toxicity problem even in small amounts. (If any liquid vents out of the 12 volt battery, it contains H₂SO₄ and will eat away at the body metal.)
     
    #3 ChapmanF, Oct 6, 2021
    vjekobalas likes this.
  4. vjekobalas

    vjekobalas Junior Member

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    Location:
    Croatia
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    Other Hybrid
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    N/A
    Thanks, looks like I need to better document/photo what I'm doing. I only see the one hole
    on the Yuasa battery but the ribbed end of the hose does not fit (it is larger than hole) or it's broken. Is that
    ribbed end a standard part to buy at Toyota or something from the hardware store ?
     
    #4 vjekobalas, Oct 6, 2021
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