🔧 Battery - Replacement

Replacing the battery in your Accord is straightforward. You’ll disconnect the old battery, remove the hold-down hardware, swap in the new battery, and then reconnect everything in the correct order.

Difficulty Level: Beginner | Estimated Time: 0.5-1 hour

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⚠️ Safety & Precautions

• Turn the ignition off and remove the key before starting.
• Wear gloves and safety glasses. Battery acid can burn skin and eyes.
• Do not let a wrench touch both battery terminals or the body at the same time.
• Disconnect the negative terminal first, then the positive terminal.
• Reconnect the positive terminal first, then the negative terminal.
• If your radio, clock, or window auto-up features reset, you may need to reinitialize them after the install.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm wrench
• 10mm socket
• Ratchet
• Extension
• Battery terminal puller (specialty)
• Gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• 12V battery - Qty: 1
• Battery terminal protectant spray - Qty: 1
• Battery terminal cleaning brush - Qty: 1

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Make sure the ignition is off and all accessories are shut down.
• Keep the old battery upright so acid does not spill.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the hood and locate the battery

• Open the hood and secure it.
• Find the battery in the engine bay.
• Battery terminals are marked + and -.

Step 2: Disconnect the negative cable

• Use a 10mm wrench to loosen the negative terminal clamp.
• Lift the negative cable off the battery and move it aside.
• Keep it from touching metal.

Step 3: Disconnect the positive cable

• Use a 10mm wrench to loosen the positive terminal clamp.
• Lift the positive cable off the battery and move it aside.

Step 4: Remove the battery hold-down

• Use a 10mm socket, ratchet, and extension to remove the battery hold-down hardware.
• Lift off the bracket or clamp that holds the battery in place.

Step 5: Remove the old battery

• Carefully lift the battery straight up and out.
• Use a battery terminal puller if a cable is stuck on the posts.
• Batteries are heavy.

Step 6: Clean the tray and terminals

• Inspect the battery tray for corrosion or dirt.
• Use a battery terminal cleaning brush to clean the cable ends if needed.
• Let everything dry before installing the new battery.

Step 7: Install the new battery

• Set the new battery in the tray with the terminals in the same orientation as the old one.
• Reinstall the hold-down bracket using a 10mm socket, ratchet, and extension.
• Torque to snug, then verify the battery does not move.

Step 8: Reconnect the cables

• Install the positive cable first and tighten it with a 10mm wrench.
• Install the negative cable second and tighten it with a 10mm wrench.
• Apply battery terminal protectant spray if desired.

Step 9: Verify operation

• Start the engine and confirm it starts normally.
• Check that the battery light is off.
• Set the clock and check any lost presets.

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✅ After Repair

• Confirm the engine starts smoothly.
• Check that headlights, interior lights, and dash lights work normally.
• If the power windows lost auto-up/down, reinitialize them if needed.

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💰 DIY vs Shop Cost

Shop Cost: $180-$320 (parts + labor)

DIY Cost: $120-$220 (parts only)

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 hour.

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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.