2007 Honda Accord Key Fob Battery: What You Need to Know

The 2007 Honda Accord key fob typically uses a CR1616 3‑volt lithium coin-cell battery. Most factory remotes for the 2003–2007 Accord generation take this size, though a few dealer-issued or aftermarket remotes may use a different coin cell, such as a CR2025. If in doubt, open the fob and confirm the code printed on the old battery.

Which Battery Fits Which Fob

Honda supplied an integrated key-and-remote fob for the 2007 Accord, but some owners may have separate replacement remotes or aftermarket units. The battery type depends on the specific transmitter design.

• Factory integrated key fob (three or four buttons on the key head): CR1616, 3V lithium coin cell.
• Dealer/older replacement “oval” remote (less common on 2007 but sometimes used): often CR2025, 3V.
• Aftermarket remotes (various shapes): may use CR1616, CR2025, or CR2032 depending on model—check the battery marking.

If your fob differs from the factory integrated design, verify the battery code inside the case or in the documentation for your specific remote.

How to Replace the Battery

Swapping the coin cell is quick and requires minimal tools. The steps below apply to most 2007 Accord factory fobs; handle the case gently to avoid damaging clips.

1. Remove the mechanical key (if your fob has a release) or locate the small notch along the fob seam.
2. Insert a small flathead screwdriver or a coin into the notch and twist carefully to separate the two halves.
3. Note the battery orientation (positive “+” side typically faces out) before removal.
4. Lift out the old coin cell and insert a new CR1616, matching the original orientation.
5. Snap the case halves back together evenly around the perimeter.
6. Test the buttons from a short distance; the LED (if present) should blink and the locks should respond.

The process takes a few minutes. Avoid touching the new battery’s faces with bare fingers—use a tissue or gloves to preserve contact quality.

How to Confirm the Correct Battery Size

Because some remotes look similar but use different coin cells, it’s wise to confirm the size before purchasing replacements.

• Open the fob and read the code stamped on the battery (e.g., “CR1616”).
• Consult the 2007 Accord owner’s manual or the remote’s insert card, if available.
• Match the transmitter’s FCC ID/model number online to a battery guide.
• Compare dimensions: CR1616 is 16 mm diameter, 1.6 mm thick; CR2025 is 20 mm diameter, 2.5 mm thick.
• Bring the fob to an auto parts store; staff can check and replace the cell on-site.

Verifying the exact code ensures proper fit, good contact, and reliable operation after replacement.

Troubleshooting After Replacement

If the fob doesn’t work after installing a new battery, the issue is usually simple to resolve.

• Polarity check: Make sure the “+” side matches the original orientation.
• Contact cleanliness: Gently wipe the battery and terminal pads; remove any lint or corrosion.
• Case fit: Ensure the shell fully snapped together; misalignment can hinder button presses.
• Distance: Test near the vehicle first; weak signals can be masked by interference.
• Reprogramming: Not typically required after a battery swap on 2007 Accord factory fobs—if unresponsive, try a second new battery or verify the fob is the correct one for the car.

Most problems stem from orientation or contact issues; double-check assembly before assuming a programming fault.

Battery Specs and Recommended Brands

Using a quality cell helps ensure strong signal output and long life.

• Type: CR1616 (for most factory 2007 Accord fobs), 3V lithium coin cell; typical capacity around 50–60 mAh.
• Brands: Panasonic, Energizer, Duracell, Maxell, Sony—buy from reputable retailers to avoid counterfeits.
• Storage: Keep spares in original packaging at room temperature; avoid heat and humidity.

Premium cells may cost slightly more but usually last longer and provide more consistent performance.

Environmental Disposal

Lithium coin cells shouldn’t go in household trash. Proper disposal protects the environment and prevents ingestion hazards for children and pets.

• Use battery recycling drop boxes at electronics or home improvement stores.
• Check local hazardous waste programs for collection events.
• Tape both sides of used cells to cover terminals before disposal/recycling.

Responsible recycling is quick, often free, and helps keep hazardous materials out of landfills.

Cost and Where to Buy

Replacement coin cells are widely available both in-store and online.

• Where: Auto parts stores, big-box retailers, pharmacies, electronics shops, and reputable online sellers.
• Price: Typically $2–$6 per battery; multi-packs offer better value.
• Tip: Avoid no-name bulk listings that may include low-quality or counterfeit cells.

Buying a two-pack lets you keep a spare on hand for the next replacement.

Summary

A 2007 Honda Accord key fob generally uses a CR1616 3V lithium coin-cell battery. While most factory remotes for this model take CR1616, some replacement or aftermarket remotes may require CR2025 or another size. Confirm by checking the code on the current battery, then replace it carefully, observing polarity and contact cleanliness for reliable operation.

What size battery does a 2007 Honda Accord use?

Duralast Group Size 35 Battery 35-DL.

What battery does a 2007 Honda Accord key fob use?

CR1616
HONDA ACCORD 2004 2005 2007 OEM KEY FOB BATTERY REPLACEMENT REMOTE CR1616 FOR.

What battery does a 2007 Honda Pilot key fob take?

This little battery is a CR 1616 which we can pop. Off. Like so just getting underneath. Here that’ll pop out and we have a CR1616 uh 3volt coin battery.

What size battery does a Honda Accord key fob take?

So the battery uh that it takes it’s u PR 2032 i’m using um this brand i’ll put the link in the description.