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2018 Kia Soul
2013 - 2025 Kia Soul
Inline 4 2.0L
Compatible with more variants.
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  • Guides
  • Kia Soul
  • 2018
  • How to Replace the 12V Battery on a 2018 Kia Soul (Step-by-Step Guide)
2018 Kia Soul 2.0L Battery Replacement  #battery #kia #soul #replacement

2018 Kia Soul 2.0L Battery Replacement #battery #kia #soul #replacement

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10mm
10mm
Socket
or (3/8")
10mm
10mm
Combo Wrench
or (3/8")
12mm
12mm
Socket
or (7/16")
3/8
3/8
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6"
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How to Replace the 12V Battery on a 2018 Kia Soul (Step-by-Step Guide)

Tools, parts, safety tips, and torque specs for a quick DIY battery swap and reliable starts for 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025

How to Replace the 12V Battery on a 2018 Kia Soul (Step-by-Step Guide)

Tools, parts, safety tips, and torque specs for a quick DIY battery swap and reliable starts for 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025

Orion
Orion

🔧 Soul - 12V Battery Replacement

Replacing your Soul’s 12V battery is a straightforward job: remove the old battery, clean the connections, and install the new one securely. Doing it the right way prevents no-start issues and avoids damaging the car’s electronics.

Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours


⚠️ Safety & Precautions

  • ⚠️ Wear eye protection and gloves—battery acid is corrosive.
  • ⚠️ Turn the ignition OFF and keep the key/fob away from the car.
  • ⚠️ Disconnect the negative (-) terminal first and reconnect it last to reduce short-circuit risk.
  • ⚠️ Don’t let a tool touch the battery positive and any metal body part at the same time.
  • ⚠️ Batteries are heavy—lift with your legs, not your back.

🔧 Required Tools

You'll need the following tools for this repair:

  • 10mm socket
  • 10mm combination wrench
  • 12mm socket
  • 3/8" ratchet
  • 6" extension (3/8")
  • Torque wrench (inch-pound or Nm-capable)
  • Battery terminal brush
  • Shop rags
  • Nitrile gloves
  • Safety glasses

🔩 Required Parts

HowToo sells all the parts you need for this repair:

  • 12V car battery (correct group size for your Soul) - Qty: 1
  • Battery terminal anti-corrosion spray - Qty: 1
  • Battery terminal felt washers - Qty: 2

📋 Before You Begin

  • Park your Soul on level ground, shift to Park, and set the parking brake.
  • Open the hood and locate the battery (front corner of the engine bay).
  • If you want to preserve settings, use a 12V memory saver (a small device that keeps power while the battery is out). If you don’t have one, it’s okay—you’ll just reset the clock and some preferences afterward.

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Power down and access the battery

  • Make sure the ignition is OFF and all lights are OFF.
  • Open the hood and visually confirm which battery post is negative (-) (usually black cable) and which is positive (+) (usually under a red cover).

Step 2: Disconnect the negative (-) terminal

  • Use a 10mm socket (or 10mm wrench) to loosen the negative terminal clamp nut.
  • Twist the clamp gently and lift it off the battery post, then tuck the cable to the side so it cannot spring back.
  • Negative off first prevents accidental shorts.
  • When reinstalling later: Torque to 5.9 Nm (52 in-lbs)

Step 3: Disconnect the positive (+) terminal

  • If there’s a cover, open it by hand.
  • Use a 10mm socket to loosen the positive terminal clamp nut.
  • Lift the clamp off the battery post and move it safely aside.
  • When reinstalling later: Torque to 5.9 Nm (52 in-lbs)

Step 4: Remove the battery hold-down

  • Locate the battery hold-down at the base of the battery.
  • Use a 12mm socket, 3/8" ratchet, and 6" extension to remove the hold-down bolt(s) and bracket.
  • Set the bracket and bolt(s) aside where they won’t get lost.
  • When reinstalling later: Torque to 9.8 Nm (87 in-lbs)

Step 5: Remove the old battery

  • Lift the battery straight up and out. Keep it level to avoid any seepage.
  • Place it on the ground (not on carpet or inside the cabin).

Step 6: Clean the terminals and tray

  • Use a battery terminal brush to clean the inside of both cable clamps until shiny metal is visible.
  • Wipe the battery tray area with shop rags.
  • Install battery terminal felt washers (if included) onto the posts when the new battery is in place.

Step 7: Install the new battery

  • Set the new battery into the tray in the same orientation as the old one (positive and negative on the correct sides).
  • Reinstall the hold-down bracket using the 12mm socket, then torque to 9.8 Nm (87 in-lbs).

Step 8: Reconnect terminals (positive first, negative last)

  • Reconnect the positive (+) clamp first using the 10mm socket, then torque to 5.9 Nm (52 in-lbs).
  • Reconnect the negative (-) clamp last using the 10mm socket, then torque to 5.9 Nm (52 in-lbs).
  • Apply battery terminal anti-corrosion spray to help prevent future corrosion.

✅ After Repair

  • Start your Soul and confirm it cranks strongly and runs normally.
  • Set the clock and re-save radio presets if they were lost.
  • If the idle seems rough at first, let it idle for 5 minutes with all accessories OFF, then drive normally for a short trip.
  • Check that the battery is secure (it should not move by hand).

💰 DIY vs Shop Cost

Shop Cost: $180-$350 (parts + labor) (approx ₹15,000-₹29,000)

DIY Cost: $120-$250 (parts only) (approx ₹10,000-₹21,000)

You Save: $60-$100 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.0 hours.


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