Prius C 12Volt Auxiliary Battery at Costco for $178

Discussion in 'Prius c Main Forum' started by DanManTX, Apr 11, 2026 at 4:54 PM.

  1. DanManTX

    DanManTX Junior Member

    Joined:
    May 6, 2012
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    Location:
    Texas
    Vehicle:
    2012 Prius c
    Model:
    Two
    I live in Dallas Texas, and my local Costco did not have this battery in stock, so I ordered it online from them.
    I received it within two days of order (30 pounds, free shipping)

    Please note that this is a slightly longer battery (Group size 46B vs original group size 34B) so you have to use a small sledge hammer and bend the metal bracket that holds the side of the battery in place.
    Reference attached photos.

    The original battery only has 35 Ampere-hours (Ah) and 272 CCA (Cold Cranking Amps).
    The Costco battery has 41 Ampere-hours (Ah) and 410 CCA (Cold Cranking Amps).

    https://costco.interstatebatteries.com/
    Here's the Costco URL. Search on the regular Prius model (not Prius C).
     

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