Tools to recondition & maintain hybrid batteries

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by EricSky, Jun 28, 2026 at 10:00 AM.

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  1. EricSky

    EricSky New Member

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    Aug 18, 2025
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    St Paul, MN
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    2008 Prius
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    Two
    What charger(s) are recommended for reconditioning hybrid batteries/cells? I currently have 2 gen2 and one gen3 Prius’s. We’ve been testing and trickle charging and replacing a few cells in these and others over the past year with mediocre results but we want to purchase better tools to recondition more than maintain. But maybe both, eventually. To recondition, an Icharger 410 Duo has popped up doing research. To maintain, both Max Volt and Prolong have come up. What suggestions are there to use for reconditioning? And what for maintenance? Thanks for sharing your knowledge and experience.
     
    #1 EricSky, Jun 28, 2026 at 10:00 AM
  2. JC91006

    JC91006 Senior Member

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    II
    The best method is not to reconditioned a weak failing battery but to buy a slightly used one and install it. That way you'll be trouble free for many years to come
     
    #2 JC91006, Jun 28, 2026 at 10:06 PM
  3. Too Many Prii

    Too Many Prii Junior Member

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    Location:
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    2008 Prius
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    Touring
    I have a Gen 2 and a Gen 3. One battery failed in "mode 1" (losing charge overnight due to an internal leak) and one failed in "mode 2" (leak to HV ground, causing the triangle of death). I fussed with both for a long time and finally installed new batteries in both to avoid the hassle and for peace of mind. I'm glad I did. I went to Texas Hybrid Batteries in Weatherford, TX. Matt's a super guy, and did each battery in under an hour.
     
    #3 Too Many Prii, Jun 28, 2026 at 11:23 PM
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