[PROJECT] Lithium battery for Prius

Discussion in 'Gen 2 Prius Accessories & Modifications' started by Xeico, Feb 18, 2024.

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  1. Xeico

    Xeico Member

    Joined:
    Jan 16, 2024
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    Location:
    Folsom
    Vehicle:
    2005 Prius
    Model:
    II
    It is still ALIVE!
    I'm currently building the second prototype. The first one looks a bit scary, but it works great.
    20241001_182402.jpg

    Here's an example of a trip from Sacramento to Fairfield and back. The speed limit was under 65, and I was driving on cruise control.
    The car is a 2005, 225,000 miles on it, which is pretty good.

    20240923_091021.jpg 20240923_180800.jpg
     
    #21 Xeico, Oct 1, 2024
    Kromis likes this.
  2. niko7

    niko7 New Member

    Joined:
    Mar 15, 2025
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    Location:
    Tampa
    Vehicle:
    2009 Prius
    Model:
    N/A
    How did your battery project end up?
     
    #22 niko7, Nov 10, 2025
  3. Xeico

    Xeico Member

    Joined:
    Jan 16, 2024
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    Location:
    Folsom
    Vehicle:
    2005 Prius
    Model:
    II
    Several cars are running in test mode. Unfortunately, I’m a bit busy and don’t have time to put everything into mass production. The project works and has proven its effectiveness. Maybe I relaxed a bit once everything started working and I proved to myself that the idea was viable.
     
    #23 Xeico, Nov 20, 2025
  4. James Analytic

    James Analytic Member

    Joined:
    Jun 14, 2019
    408
    63
    3
    Location:
    Michigan
    Vehicle:
    2006 Prius
    Model:
    N/A
    Which cells are you using? Are those from a gen 4 lithium non Prime? I have a bunch of gen 1 Pip-PHV-Plug In Prius cells and plan to start working on better understanding the BMS and reading, processing and outputting the data of a 14S Brick for starters and using with a portable power station OUPES Mega 1 for now. Then appears like you are doing where using the gen 2 HV pack parts other than the NiMH modules and frame harnesses. Thinking that will be easier to code, i.e. translating the 4 NMC cells to look like a gen 2/3/4 block. Then, would be awesome to get to the time to be able to custom make the HV battery sense computer, ideally ultimately for the gen 1 Pip to provide more options in the future and rescue those.
     
    #24 James Analytic, Jun 27, 2026 at 3:20 PM
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