🔧 Explorer - Battery Replacement

Replacing your Explorer’s 12V battery is mainly about safe disconnection/reconnection and making sure the new battery is clamped down securely. After installation, you’ll also want to reset the Battery Monitoring System (BMS) so charging works correctly.

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

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⚠️ Safety & Precautions

• Wear eye protection and gloves; battery acid is corrosive.
• Key off, keep the key away from the vehicle, and wait 2–3 minutes before disconnecting (modules go to sleep).
• Disconnect negative (-) first and reconnect negative (-) last to reduce short-circuit risk.
• Do not let a tool touch the battery positive (+) and any metal body part at the same time.
• If you use a memory saver, follow its instructions carefully. A memory saver is a small device that keeps vehicle settings powered while the battery is out.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 13mm socket
• 1/4" or 3/8" ratchet
• 6" socket extension
• Torque wrench (in-lb or Nm)
• Battery terminal brush
• Trim clip tool
• Shop rags
• Nitrile gloves
• Safety glasses
• OBD-II memory saver (specialty)

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• 12V battery (Group 65, BCI) - Qty: 1
• Battery terminal anti-corrosion spray - Qty: 1
• Battery terminal felt washers - Qty: 2

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📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Pop the hood and make sure you have your radio presets or any saved settings noted (some settings may reset).
• If using an OBD-II memory saver (specialty), connect it now per the device instructions before disconnecting the battery.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Access the battery

• Open the hood and locate the battery in the engine compartment.
• If a cover or fresh-air duct is in the way, remove fasteners using a trim clip tool and/or a 10mm socket.

Step 2: Disconnect the negative (-) cable

• Use a 10mm socket to loosen the negative (-) terminal clamp.
• Lift the clamp off the battery post and tuck it aside so it can’t spring back.

Step 3: Disconnect the positive (+) cable

• Use a 10mm socket to loosen the positive (+) terminal clamp.
• Lift the clamp off the battery post and position it so it cannot touch metal.

Step 4: Remove the battery hold-down

• Remove the battery hold-down bolt using a 13mm socket, ratchet, and 6" extension.
• Set the hold-down and bolt aside where you won’t lose them.

Step 5: Remove the old battery

• Lift the battery straight up and out. Batteries are heavy, so use safe lifting posture.
• Place it on the ground upright (never on its side).

Step 6: Clean and prep the terminals

• Use a battery terminal brush to clean any corrosion from the inside of both cable clamps.
• Wipe with shop rags.
• Install battery terminal felt washers (one on each battery post) if you’re using them.

Step 7: Install the new battery and secure it

• Set the new battery into the tray in the same orientation as the old one.
• Reinstall the hold-down and tighten using a 13mm socket and torque wrench.
• Torque to 10 Nm (89 in-lbs)

Step 8: Reconnect the positive (+) cable

• Install the positive (+) clamp onto the battery post.
• Tighten using a 10mm socket and torque wrench.
• Torque to 7 Nm (62 in-lbs)

Step 9: Reconnect the negative (-) cable

• Install the negative (-) clamp onto the battery post.
• Tighten using a 10mm socket and torque wrench.
• Torque to 7 Nm (62 in-lbs)

Step 10: Protect terminals and reinstall any covers

• Apply battery terminal anti-corrosion spray to both terminals.
• Reinstall any battery cover/ducting using the trim clip tool and/or 10mm socket.

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✅ After Repair

• Start your Explorer and confirm normal cranking and no flickering lights.
• Reset the Battery Monitoring System (BMS): turn ignition ON (engine OFF), flash high beams 5 times, then press and release the brake pedal 3 times within 10 seconds. The battery light should flash to confirm reset.
• Set the clock and restore any saved settings if needed.
• Check that the battery is secure (no movement) and that both terminals are tight.
• Recheck clamp tightness after 1–2 days.

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💰 DIY vs Shop Cost

Shop Cost: $250–$450 (parts + labor)

DIY Cost: $160–$260 (parts only)

You Save: $90–$190 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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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.