1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Hybrid battery is out, anything need swapped to new one?

Discussion in 'Gen 2 Prius Main Forum' started by Bucci, Jun 25, 2019.

  1. Bucci

    Bucci Junior Member

    Joined:
    Jun 16, 2019
    15
    0
    0
    Location:
    New Milford, CT
    Vehicle:
    2006 Prius
    Model:
    III
    Hello all,
    I posted a week ago about our dead battery. I took the hybrid battery out of our 2006 prius and have it ready to go back to dealer. Gotta line on a new one form toyota dealer going to pull trigger tommorow.
    It's an hours drive away to get the new one and I wondered:

    -what prep needed to safely move battery?

    -anything need to be transferred from old battery to new one?

    -if yes to above, any problem with doing that in the parking lot and then bringing in the core?

    -I have watched several videos on install but haven't seen one using a new toyota battery, can you point me to one or warn me of any ways that I might screw up the car and my health?

    Thanks for all the help here, much appreciated.

    Paul
     
  2. ericbecky

    ericbecky Hybrid Battery Hero

    Joined:
    Mar 12, 2004
    4,365
    3,209
    1
    Location:
    Madison, Wisconsin
    Vehicle:
    2005 Prius
    Model:
    Two
    Yes, quite a few items need to be swapped over. They may not want or allow you to work on a high voltage battery in their parking lot. Especially if you show up without proper protective equipment. (High voltage rubber safety gloves for instance)

    You could spend an hour in the parking lot trying to figure out what you need to swap over. It's be better if you prep if all ahead of time.

    I work on hybrids for a living.
    Off the top of my head, here are some of the items you will need to swap over
    - entire electronics end of the battery (computer, contactors, etc)
    - 3 bolts that hold electronics end of battery (2 on one side, 1 on the other)
    - 3 nuts that hold electronics end of battery case in place
    - 1 wider-flanged nut that holds ground cable
    - 2 bolts that hold fuse holder in place
    - black plastic assembly that clips on top of battery near electronics end
    - 2 rubber vent tubes
    - 1 whitish vent tube junction
    - 1 metal case end plate
    - 1 bolt that holds on end plate
    - 1 whitish small rectangular clip that holds on the end plate
    - 1 long black rubbery/plastic piece that protects the sharp edges of the pack when assembled.

    Do not turn in your core until you have fully assembled the new battery. You will be very sorry if they send back your core with pieces you need to complete the job, and you end up having to pay money for parts you have away.

    Lastly, please use an inch-pound torque wrench to properly tighten the nuts on the battery and contactor posts. Don't be lazy and simply try to guess. An inch-pound torque wrench will cost you under $30. These are high voltage connections. You don't want to have them overtightened or undertightened.
     
    #2 ericbecky, Jun 26, 2019
    Last edited: Jun 26, 2019
    jerrymildred and Raytheeagle like this.
  3. Bucci

    Bucci Junior Member

    Joined:
    Jun 16, 2019
    15
    0
    0
    Location:
    New Milford, CT
    Vehicle:
    2006 Prius
    Model:
    III
    Thanks for the info I will definitely drive it back home. I wasn't sure if it came with a new computer etc it seems like it does in this diagram (Prius chat wouldn't let me include a link) but the part I am getting is

    G951047031
    BATTERY ASSEMBLY, HV SUPPLY
    This Fits Your 2006 Toyota Prius Hatchback


    Do you have a source for high voltage gloves with which you can do fine work?

    Are there any videos of the swap?

    Thanks,
    Paul
     

    Attached Files:

  4. ericbecky

    ericbecky Hybrid Battery Hero

    Joined:
    Mar 12, 2004
    4,365
    3,209
    1
    Location:
    Madison, Wisconsin
    Vehicle:
    2005 Prius
    Model:
    Two
    The picture shows the wires on the end ha going loose. The triangular-ish computer end is definitely missing.
    Search for magid 00 high voltage gloves o. Amazon should get you some results. I also get leathers just to protect them from getting cut.
     
  5. Bucci

    Bucci Junior Member

    Joined:
    Jun 16, 2019
    15
    0
    0
    Location:
    New Milford, CT
    Vehicle:
    2006 Prius
    Model:
    III
    Thanks for your info.
    I swapped out the battery car is running well just need to put the trim back,
    Just one last question: there is a form in the battery packaging that needs to be signed off by a toyota service tech how does one handle that? do they inspect the battery at the dealership before they send it back?
    Thanks
     
  6. ericbecky

    ericbecky Hybrid Battery Hero

    Joined:
    Mar 12, 2004
    4,365
    3,209
    1
    Location:
    Madison, Wisconsin
    Vehicle:
    2005 Prius
    Model:
    Two
    They will inspect it.
    Make sure to send it like you received it.
    Wrap wire connectors.
    Remove positive lead
    Remove negative lead.
    Write year, make, model, and odometer reading on case. (I usually put it on a piece of tape). Or they may just have you report it to them.
    Be sure black battery module post covers are on.
     
    Raytheeagle likes this.
  7. tangerino

    tangerino Junior Member

    Joined:
    May 12, 2018
    82
    15
    0
    Location:
    WA
    Vehicle:
    2005 Prius
    Model:
    II
    @ericbecky Do you happen to remember if the lower air dam also needs to be swapped over to a replacement? I installed an OEM replacement but I don't remember if it included a lower air dam (it did not include the upper one). You and other folks on the forums mentioned needing to swap the upper air dam ("black plastic assembly that clips on top of battery near electronics end") on top of the battery. But I'm not sure about the lower one (underneath on the same side).
     
  8. rogerthat

    rogerthat Active Member

    Joined:
    Sep 19, 2015
    344
    115
    0
    Location:
    Georgia
    Vehicle:
    2009 Prius
    Model:
    N/A
    Hmm, I don't recall a lower air dam. do you have a photo of the part? I also don't recall swapping out anything that looks like the air dam on the underside.
     
    #8 rogerthat, Dec 13, 2022
    Last edited: Dec 13, 2022
  9. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,636
    38,195
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Most prudent would be to just resign yourself to a second trip, to return your old battery. Think of it as shake-down cruise for the new battery?

    typically that’ll be a 1/4” drive torque wrench. And yeah there’s some good cheap ones. Tekton for one. Torque values should be in attached.

    There’s lots of made-in-China options; see mine is “Titan”…
     

    Attached Files: