1. peterw

    peterw New Member

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    los angeles
    Vehicle:
    2025 Prius Plug-in
    Model:
    SE
    Previously, I have a 2011 prius for 10 year, and I know that use a 12v AGM battery.
    Recently, got a 2025 prius plug-in SE, by looking at the 12v battery, I am not sure it is a AGM type. It has six cap to add water (I unscrew one of them and just like a conventional 12v). So is it a AGM ?
     

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  2. Roy Peterson

    Roy Peterson Member

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    Feb 11, 2024
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    Location:
    Richland WA
    Vehicle:
    2024 Prius Prime
    Model:
    Prime Premium
    That is not an AGM battery. Same battery that came in my 2024. It’s a Yuasa flooded lead acid battery. FYI, I replaced the OEM Yuasa with an AGM last year after the OEM battery went flat one day. AGM has worked very well in my car to date

    Cheers
     
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  3. peterw

    peterw New Member

    Joined:
    Wednesday
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    Location:
    los angeles
    Vehicle:
    2025 Prius Plug-in
    Model:
    SE
    thanks, for more assurance. Although searching (include priuschat), still can have a sure answer, but seem that a flooded one to me too.
    The reason what to know is for a tickle charger setting.
     
  4. Mendel Leisk

    Mendel Leisk MMX GEN III

    Joined:
    Oct 17, 2010
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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    5th gen batteries have the larger, North American sized posts?

    Googles AI is saying they’re still the Japanese Industrial Standard (skinny) posts. The pictured battery looks to have the larger NA posts. Maybe just my eyes, trying to install the cable clamps will confirm.
     
    #4 Mendel Leisk, Dec 20, 2025 at 10:11 AM
    Last edited: Dec 20, 2025 at 10:17 AM