NiMH Hybrid Battery Modules

Discussion in 'Gen 3 Prius Technical Discussion' started by indel, Jan 16, 2026 at 3:05 PM.

  1. indel

    indel Member

    Joined:
    Apr 1, 2024
    199
    76
    1
    Location:
    Northwest Indiana
    Vehicle:
    2012 Prius
    Model:
    Two
    There are quite a few videos available now on hybrid battery reconditioning. Often times, people are forced to replace a few or more modules, which begs the question(s):

    1. Are we entirely dependent upon the pool of modules from totaled vehicles or retired batteries from vehicles that went the K or Li route?

    2. If so, why hasn't anyone tried to manufacture these modules from scratch? How hard can it be to make NiMH cells?

    3. What is Toyota doing with the core returns on their battery packs? Conventional wisdom and some commentary on forums I have read suggests that they are ensuring recycling of hazardous materials. What is the likelihood that their new packs are simply recycled/refurbished core returns? And perhaps only the new vehicles are getting batteries with completely new modules? In other words, are you getting your money's worth when spending at least $2500 in parts and anywhere from $500-1500 in labor, especially since the warranty on even dealer installed packs maxes out at 3 years.
     
  2. ASRDogman

    ASRDogman Senior Member

    Joined:
    May 29, 2018
    7,656
    3,940
    0
    Location:
    Florida
    Vehicle:
    2010 Prius
    Model:
    Two
    why don't YOU make them. It's easy....

     
  3. indel

    indel Member

    Joined:
    Apr 1, 2024
    199
    76
    1
    Location:
    Northwest Indiana
    Vehicle:
    2012 Prius
    Model:
    Two
    Not being helpful. The intent of my post is not snark, but genuine curiosity. May be you can share some of your wisdom answering the questions I posed instead of snarking.
     
  4. ASRDogman

    ASRDogman Senior Member

    Joined:
    May 29, 2018
    7,656
    3,940
    0
    Location:
    Florida
    Vehicle:
    2010 Prius
    Model:
    Two
    Yes I am being helpful. You want someone else to do it. It was your idea, then YOU should do it.
    It was not "snarky", it was a genuine response. I shared my wisdom. You just didn't like the answer.

    You only want answers that please you, when they make you work, you can't handle it.
    Man up and except both sides of an answer to your question.

    Why don't you research yourself and see what is involved in starting from scratch and building a battery.
    Use your money and time, don't expect anyone else to do it if you are not willing to put forth the work yourself.

    If you can't handle any answer you don't like, don't ask the question.