Drain plug under 12 battery

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Hayward101, Jan 16, 2026 at 6:53 PM.

  1. Hayward101

    Hayward101 New Member

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    I just replaced the 12V battery in my 2009 Prius. There was several inches of water in the compartment. I drained it and am planning to seal where the hatchback meets the roof since I read that is often the culprit. I realized I accidentally left the drain plug out under the battery. I'm not the most handy and it was challenging for me to get the battery out, can I just buy a plug that can be stuck in from the underneath side or do I have to take the battery back out? What kind of plug would be best? Thanks for any help.
     
    #1 Hayward101, Jan 16, 2026 at 6:53 PM
  2. bisco

    bisco cookie crumbler

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    you could clean the area and try something like gorilla tape. don't leave it open though, mice like easy entries
     
    #2 bisco, Jan 16, 2026 at 8:25 PM
  3. Hayward101

    Hayward101 New Member

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    Ok thanks I'll put some over it in the meantime.
     
    #3 Hayward101, Jan 16, 2026 at 8:33 PM
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