20–40 minutes

Car battery

Match the group size printed on the label of the battery that’s in the car. The tray and the hold-down only fit a few sizes.

  1. 1

    Turn the vehicle off and take the key out. If you care about radio presets, a memory saver plugged into the 12-volt outlet is optional.

  2. 2

    Disconnect the negative cable first (the black cable, marked −). Then disconnect the positive.

  3. 3

    Remove the hold-down bracket and lift the battery straight out. They are heavy.

  4. 4

    Set the new battery in the same direction, positive post on the same side as before.

  5. 5

    Connect the positive cable first, then the negative. Tighten the hold-down so the case can’t slide.

If the cables are swollen or the posts are caked in blue-green crust, clean or replace the terminals while the battery is out. A new battery on rotten cables still starts poorly.

On Amazon, add your vehicle in the Confirm fit box at the top of the results, and check the “This fits your vehicle” badge before you buy.

Tools for this job