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2003 Prius Battery

Discussion in 'Generation 1 Prius Discussion' started by swordfish, Jan 12, 2021.

  1. swordfish

    swordfish Junior Member

    Joined:
    Nov 18, 2016
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    Location:
    new york
    Vehicle:
    2005 Prius
    Model:
    II
    i bought a 2003 Prius battery but the terminals where to thin so how can i get the right one that i need anyone help
     
    #1 swordfish, Jan 12, 2021
  2. vaughnstark777

    vaughnstark777 Member

    Joined:
    May 4, 2012
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    Location:
    Roy, WA
    Vehicle:
    2001 Prius
    Model:
    I
    Get the numbers off of your old battery and by the same one you took out of it.
     
    #2 vaughnstark777, Jan 12, 2021
  3. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
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    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    The Gen 1 could have two different batteries, as described in this thread with the part numbers.

    The higher-capacity one had larger terminal posts and there was a retrofit kit available to change the car's cable terminals and hold-down to match. If your car already has the larger cable terminals, then the higher-capacity battery is probably the drop-in replacement.

    The old part number of that one, 28800-21190, was later superseded by 28800-31291, which is still available. The last one I bought, its capacity had been further improved, to 54 amp hours.
     
    #3 ChapmanF, Jan 12, 2021
    WHCSC likes this.
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