Hybrid Battery part number compatibility

Discussion in 'Gen 3 Prius Technical Discussion' started by PhilPaw, Oct 3, 2023.

  1. PhilPaw

    PhilPaw Junior Member

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    Hi all,

    My Dr Prius app says 38% left in my 14 year old, 150,000 mile Gen 3 Prius.

    Time to shop around for a new one...... Well I found a salvage Lexus CT200H, with low miles, and a 2017 build date.

    Problem is that the part numbers don't match up. The packs look identical:

    Lexus part is G951076012 while my Toyota dealer says the replacement part that they would order is G951047062

    Any ideas whether I can risk it? What could possibly go wrong :)
     
  2. PhilPaw

    PhilPaw Junior Member

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    A google search shows two ebay listings stating that the part numbers are interchangeable. Not sure if I should put much weight on that.
     
  3. PhilPaw

    PhilPaw Junior Member

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    If nobody knows what the difference is, I'll spin the wheel and buy it. If it is a battery management can bus protocol issue of some sort, I can always swap just the cell modules so I doubt it's too much of a risk.
     
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  4. PhilPaw

    PhilPaw Junior Member

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    Ok I changed the battery over and with an abundance of caution I also kept the old cell monitor circuit and contactor box.

    The new Lexus CT200H battery works great with the Prius.

    The only difference I see is that the Lexus part number G951076012 does NOT have rubber tubing installed for electrolyte leaks, whereas the Prius part number G951047062 DOES. The Lexus contactor box also has slightly larger relays onboard. Other than that they seem identical.

    The Prius connects all the overflow tubes and there is a drain tube to the under side of the car. The Lexus seems not to have any provision for electrolyte leaks. I guess they just figured that the probability of an electrolyte leak was low enough to delete all these extra parts.
     
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  5. saviorcrash

    saviorcrash Junior Member

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    did you just swap over the modules from the Lexus battery to the 3rd gen Prius case?
     
  6. Mr_Dobalina

    Mr_Dobalina New Member

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    just following up to see how you like this still? I am looking to get a new OEM gen 3 battery and G9510-76013 is currently MUCH less expensive than the recommended G9510-47063. Just wondering if I can use G9510-76013 in my 2010 Prius without issues or modification.
     
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  7. MAX2

    MAX2 Active Member

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    Modules for high-voltage batteries Lexus and Toyota are interchangeable. When you take a new battery and put it in Gen2, you will have to do a little work to reinstall the new modules in the old battery. But when using Lexus CT200 and Prius Gen 3 batteries, there is much less work, these batteries have the same housings and can be installed without rearranging the modules.