How to Replace the Battery in a Ford Focus

Written by ehow cars editor
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The Focus is Ford's entry-level car available in a number of body styles, from a hatchback to a four-door sedan. It provides easy access for do-it-yourself mechanics. Look for a white, chalky substance on the battery as a sign it needs replacing.

Skill level:
Moderately Easy

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Things you need

  • New 12 -volt battery
  • Flathead screwdriver
  • Battery terminal puller
  • Large and pointed wire brushes
  • Socket wrench

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  1. 1

    Locate the battery on the driver's side close to the inside wall. Remove the bar that holds in the battery with a screwdriver.

  2. 2

    Disconnect the ground wire. Set it aside so that it doesn't touch anything metal. Remove the cable ends from the battery terminals with a battery terminal puller. Take off the negative terminal first.

  3. 3

    Lift the battery out of the compartment. Use the wire brush to clean the surface that holds the battery. Clean the insides of the connector cables with a pointed wire brush.

  4. 4

    Rinse off the cables and battery tray or wipe with a damp cloth, and let them dry out.

  5. 5

    Place the new battery on the shelf. Place the correct cable on each terminal and tighten securely with pliers or a socket wrench. Replace the battery holder.

  6. 6

    Dispose of the old battery properly at an auto parts store or recycling center.

Tips and warnings

  • Never smoke when replacing a battery.
  • Wear goggles and gloves when handling the battery and battery cables in case of contact with acid.

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