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2004 Prius 12V battery--need help

Discussion in 'Gen 2 Prius Technical Discussion' started by jackson5, Dec 11, 2017.

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  1. jackson5

    jackson5 Junior Member

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    I'm having trouble finding the correct Prius battery. It's time to change my prius 12 V bat. It lasted 7 years. Of course the dealer is rather pricey so I went to a couple of auto parts stores. The batteries they had (and sold me--but I returned them) were size 46 B (L=9"). The original battery in my prius is size 34B/20R (L=7.5"). The bigger ones won't fit w/o modifications. I think later Prius models, maybe even a later Prius 2004 model, had the bigger battery. Has anyone else had this problem? Can the size 46B bat (L=9") be installed with easy mods to the battery holder? Any info would be appreciated. It's a great car--235K, still the original hybrid bat and even the original front brakes!
     
    #1 jackson5, Dec 11, 2017
  2. bisco

    bisco cookie crumbler

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    do you have sks or no?
     
    #2 bisco, Dec 11, 2017
  3. jackson5

    jackson5 Junior Member

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    No SKS which may be why I have the smaller Bat.
     
    #3 jackson5, Dec 11, 2017
  4. bisco

    bisco cookie crumbler

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    yes, if you don't want to upgrade, you may have to go with the dealer. have you tried online, optima, etc?
     
    #4 bisco, Dec 11, 2017
  5. MickyMatter

    MickyMatter Active Member

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    Vehicle:
    2008 Prius
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    II
    12V-Batterie – Prius Wiki (German Prius-Wiki):

    Original battery "small" (for models without smartkey system)
    - Manufacturer: GS YUASA
    - Type: S34B20R
    - Capacity: 35 Ah
    - Dimensions, without connecting poles (L x W x H): 190 x 130 x 200 mm³

    Replacement Battery Banner for Prius II without Smartkey System
    - Type: Power Bull P4027
    - Capacity: 40 Ah
    - Dimensions, including connections (L x W x H): 187 x 127 x 226 mm³
    - Manufacturer: Banner
    - Price: about 80,- EUR
    - Connection adapter for battery venting must be replaced with a 5.9 mm adapter (eg from BMW).
    - The battery has two vents. The opening not on the right side of the breather hose must be closed.
    - Degassing hose must be 3 cm longer than the original, as the vent is located further back.

    Replacement battery MOLL without smartkey system
    - Type: MOLL Kamina start
    - Article number: 535 020 024
    - Price: about 70,- EUR (Batterie24)
    - Capacity: 35 Ah

    Replacement battery Flybat FA35 without smartkey system
    - Type: 300A Asianype, plus left, thin pole
    - Article number: BC535111803
    - Price: 49,90 EUR (Battery Center: http://die-batterie-experten.de/)
    - Capacity: 35 Ah
    - Endpolart: 3 (Asian Pole)
    - circuit: 1 (positive pole on the left)
    - Manufacturer: "Hausmarke" Battery Center (allegedly manufactured by Varta France)
    - degassing: 2 openings, one must be taped, in the other the BMW breather (s.o.) with original hose insert

    12V-Batterie – Prius Wiki:
    Battery overflow adapter from BMW (part number 6 121 137 78 35, costs about 2 EUR from BMW)
     
    #5 MickyMatter, Dec 11, 2017
  6. dolj

    dolj Senior Member

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    Yes, it can quite easily. Go get the SKS battery holder from your local Toyota Parts dept. Costs about $25. Well worth the investment.
     
    #6 dolj, Dec 11, 2017
  7. greasemonkey007

    greasemonkey007 Active Member

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    Or your local pick-n-pull! There's only 2 bolts that hold the hold-down bracket in place. Just look for a car with smart key.
     
    #7 greasemonkey007, Dec 13, 2017
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