This procedure covers the removal and replacement of the 12-volt battery on a 2015 Kia Forte with 1.8L I4 engine, including proper disconnection sequence and terminal cleaning.

Warnings

Tools required

Parts

• 12V Battery (Group 35 or equivalent) × 1 — Use OEM specification or equivalent CCA rating

Preparation

1. Ensure the engine is off and key is removed from ignition
2. Verify all electrical accessories (lights, radio, HVAC) are turned off
3. Locate the battery in the engine compartment on the driver's side
4. Inspect the battery for any visible damage or excessive corrosion

Procedure

1. 1

   Disconnect negative battery terminal
   Using a 10mm socket, loosen the negative (-) battery terminal bolt. Remove the cable from the terminal and position it away from the battery post to prevent accidental contact. Ensure the cable does not touch any metal surfaces.
   Torque spec

   Battery Terminal Bolts6 Nm (4 lb-ft)
2. 2

   Disconnect positive battery terminal
   Using a 10mm socket, loosen the positive (+) battery terminal bolt. Remove the cable from the terminal. Be careful not to let the positive cable or terminal touch any metal surfaces or the negative terminal.
   Torque spec

   Battery Terminal Bolts6 Nm (4 lb-ft)
3. 3

   Remove battery hold-down bracket
   Locate the battery hold-down bracket securing the top of the battery. Using a 12mm socket, remove the battery hold-down bolt. Lift the hold-down bracket away and set aside.
   Torque spec

   Battery Hold-Down Bolt8 Nm (6 lb-ft)
4. 4

   Remove battery from tray
   Carefully lift the battery straight up and out of the battery tray. The battery weighs approximately 35-40 lbs. Use proper lifting technique or a battery carrying strap. Place the old battery on a stable surface away from the work area.
   ⚠Battery is heavy. Use proper lifting technique to avoid back injury
5. 5

   Inspect and clean battery tray
   Inspect the battery tray for corrosion, cracks, or damage. Clean any corrosion using a baking soda and water solution (1 tablespoon per cup of water) and a wire brush. Rinse with clean water and dry thoroughly with shop towels.
6. 6

   Clean battery terminals and cable ends
   Use a battery terminal cleaner or wire brush to clean both the positive and negative cable ends. Remove all corrosion and oxidation until bare metal is visible. Clean the terminals on the new battery if necessary.
7. 7

   Install new battery
   Carefully lower the new battery into the battery tray, ensuring it is properly seated and oriented with positive terminal toward the front of the vehicle. The battery should sit flat and stable in the tray.
8. 8

   Install battery hold-down bracket
   Position the hold-down bracket over the top of the battery. Install the battery hold-down bolt and tighten to specification using a torque wrench. Ensure the battery is secure and cannot move.
   Torque spec

   Battery Hold-Down Bolt8 Nm (6 lb-ft)
9. 9

   Connect positive battery terminal
   Place the positive (+) cable onto the positive battery terminal. Ensure full contact with the terminal post. Install and hand-tighten the terminal bolt, then torque to specification using a torque wrench. Do not overtighten as this can damage the terminal.
   Torque spec

   Battery Terminal Bolts6 Nm (4 lb-ft)
10. 10

    Connect negative battery terminal
    Place the negative (-) cable onto the negative battery terminal. Ensure full contact with the terminal post. Install and hand-tighten the terminal bolt, then torque to specification using a torque wrench. Do not overtighten.
    ℹ️A small spark may occur when connecting the negative terminal due to capacitor charging in vehicle electronics. This is normal.
    Torque spec

    Battery Terminal Bolts6 Nm (4 lb-ft)

Reassembly

1. Verify both battery terminals are tight and secure with no movement
2. Apply dielectric grease or anti-corrosion spray to terminals if desired
3. Ensure no tools or materials are left in the engine compartment

Verification

• Turn the ignition to the ON position (engine off) and verify dashboard lights illuminate
• Start the engine and verify it cranks and starts normally
• Check that all electrical systems function properly (lights, radio, power windows)
• Reset clock and radio presets as needed
• Verify battery terminals remain tight after engine has run for several minutes

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