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Aux battery CCA

Discussion in 'Generation 1 Prius Discussion' started by shagpal, May 12, 2015.

  1. shagpal

    shagpal Junior Member

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    what is the CCA rating for our gen 1 auxiliary battery?

    thanks.
     
    #1 shagpal, May 12, 2015
  2. bwilson4web

    bwilson4web BMW i3 and Model 3

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    It doesn't matter as the 12V does not have a starter. The primary requirements:
    • size - must fit in the available space or make mods to hold the battery
    • sealed or vented - it is in the trunk, technically part of the vehicle interior where the people live
    • Ahr - there is ~30-35 ma parasitic load when the car is turned off and this defines how long it has to hold enough charge to start the electronics
    Bob Wilson
     
    #2 bwilson4web, May 12, 2015
  3. shagpal

    shagpal Junior Member

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    my aux battery was depleted, so I took it into my local auto parts store to get it tested and charged.

    they asked for the specs because there were none labeled on the battery. it was a Panasonic and all in Japanese.

     
    #3 shagpal, May 13, 2015
  4. ChapmanF

    ChapmanF Senior Member

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    If you have the Panasonic in your Gen 1, it's this one, originally 48 Ah, upgraded in current stock to 51. The CCA (as if it mattered in a Prius) is under 400. The part on the label that does matter most is the part that says "when you charge battery, charging current should not be higher than 5.0A and charging time should be within 12 hours."

    -Chap
     
    #4 ChapmanF, May 13, 2015
  5. milkman44

    milkman44 Active Member

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    #5 milkman44, May 13, 2015
  6. shagpal

    shagpal Junior Member

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    I put in a group 35 AGM. the Panasonic was dying.

    I had to mod the tray slightly and put in a mat on the bottom to space it up higher. it fits and is sealed, so no venting. itsa 680 CCA and 50 amp hours.


    20150513_184306.jpg
     
    #6 shagpal, May 13, 2015
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