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    Spokgal's Avatar
    Spokgal Posts: 1, Reputation: 1
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    #1

    Nov 14, 2007, 12:31 PM
    How do I know when to replace my automobile battery?
    Please advise me of when to replace my automobile battery? It is the original battery that came with the SUV when I purchased it new in 2002. I live in the Pac. Northwest and the automobile in question is a 2002 Ford Explorer 4WD.

    Thank you
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    Nov 14, 2007, 12:45 PM
    New car batteries normally come with a 3 year/72 month warranty. I would be proactive and replace it, on your terms, now. Here's how:

    . Remove negative battery cable first, then remove the positive battery cable.
    . Clean battery terminals and connections, using a battery terminal brush or 240 grit abrasive cloth. Do this even on the new battery. Afterwards, apply dielectric grease.
    . Install new battery in car, fasten tie-down bolt, attach positive battery cable to the positive battery terminal; then, attach the negative battery cable to the negative battery terminal.

    Ideally, you check the fluid level of the new battery, adding distilled water if necessary, and place it on a battery charger for a little while, prior to installing it in the car. Costco has the best deal on batteries I've seen--3 year/100 month batteries at a great price.
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