Traction battery to be replaced?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by lpf, Sep 15, 2025.

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  1. lpf

    lpf Member

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    The traction battery drains quickly when I accelerate aggressively, but then charges normally.
    Keeps energy well when driving calmly. What you thing, is this time for total or partially replacement
    of modules?
    Thanks
     
    #1 lpf, Sep 15, 2025
  2. Tombukt2

    Tombukt2 Senior Member

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    Could very well be have you ran the doctor Prius advanced test or any kind of advanced test on the hybrid battery there are several programs? I don't know them all. How about just not beating on it . I'm sure this is with everything on AC and all that stuff so you know. It is summer . Energy storage do not like hi heat. So if you can't live with it then yes you can play whack a mole or replace factory .
     
    #2 Tombukt2, Sep 15, 2025
  3. bisco

    bisco cookie crumbler

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    how is gas mileage?
     
    #3 bisco, Sep 15, 2025
  4. lpf

    lpf Member

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    Around 44mpg. No big difference.
     
    #4 lpf, Sep 16, 2025
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  5. lpf

    lpf Member

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    Checked with Dr Prius, around 70%. But battery can't cope with acceleration and high speeds...
     
    #5 lpf, Sep 16, 2025
  6. bisco

    bisco cookie crumbler

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    you could try a grid charger
     
    #6 bisco, Sep 16, 2025
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