2007 Prius touring, Traction battery diagnosis and repair

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Robert Golden, Apr 8, 2026 at 7:16 PM.

  1. Robert Golden

    Robert Golden New Member

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    Location:
    Tucson AZ
    Vehicle:
    2007 Prius
    Model:
    Three Touring
    Which, if any, of these traction battery cells need replaced?

    April 7, 2026 hybrid battery voltage: 14.48, 14.29, 14.24, 14.05, 14.32, 13.84,
    14.07, 13.49, 13.05, 14.07, 14.10, 14.19,14.26,14.52
     
  2. JC91006

    JC91006 Senior Member

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    Location:
    Los Angeles, CA
    Vehicle:
    2008 Prius
    Model:
    II
    if these are readings from the original 2007 battery, it's best you replace the entire battery with a used "newer" battery. The battery will need replacement modules and reconditioning. And even after that, it may not last very long if it's from 2007 (nearly 19 years old)