Prius 2007 - Yuasa HJ-S34B20R 12V AGM battery is OK?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by IvanCS, Oct 28, 2025 at 5:11 AM.

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  1. IvanCS

    IvanCS New Member

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    My 12V battery needs replacing. Halfords (UK) recommend Yuasa HJ-S34B20R Auxiliary AGM Battery for my Prius 2007, but am not confident they are correct.
    Is there a table online or a way to check this first?
    Thanks, Ivan
     
    #1 IvanCS, Oct 28, 2025 at 5:11 AM
  2. Hayslayer

    Hayslayer Member

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    In North America, the 2007 with SKS uses the S46 battery, the model without SKS uses the S34. The S46 is just slightly larger and uses a slightly different mounting bracket. In reality, either battery can be used in either circumstance by modifying the bracket or ordering a new bracket from Toyota for about $25. The S46 has a bit more capacity to account for the extra electrical draw by the SKS system while the car is off.
     
    #2 Hayslayer, Oct 28, 2025 at 9:28 AM
  3. Tombukt2

    Tombukt2 Senior Member

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    Yuasa AGM is a great battery have em in my bikes . Kinda like old Deka
     
    #3 Tombukt2, Oct 28, 2025 at 2:05 PM
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