What battery does a 2007 Honda Fit key take?

The 2007 Honda Fit key fob typically uses a CR1616 3V lithium coin-cell battery. Because some aftermarket or region-specific remotes can differ, it’s wise to open the fob and confirm the stamp on the existing cell (or check the fob’s part/FCC ID) before buying a replacement.

How to confirm the correct battery for your specific fob

While most original 2007 Fit remotes use a CR1616, legacy replacements and regional trims sometimes vary. Verifying your exact fob helps avoid returns and fitment issues.

• Open the fob and read the battery marking directly (e.g., “CR1616,” “CR1620,” or “CR2032”).
• Check the FCC ID or part number on the back of the fob, then cross-reference on the manufacturer’s site or a reputable parts catalog.
• Compare your fob’s shape and button layout with OEM images for the 2007 Fit; the slim two/three-button Honda remotes of that era commonly use CR1616.
• If you have a non-OEM or dealer-installed system, consult the brand/model of the remote (it may specify a different coin cell).

These steps help ensure you purchase the exact battery your remote requires and avoid compatibility issues.

What you need to replace the battery

Gather a few basic tools and a replacement cell to complete the swap in minutes.

• Replacement coin cell: CR1616 (3V lithium) for most 2007 Fit OEM fobs
• Small Phillips screwdriver (if your fob has case screws)
• Plastic pry tool or a coin (to gently separate the case halves)
• Clean cloth and isopropyl alcohol (optional, for contact cleaning)

Having these items on hand helps prevent damage to the case and makes reassembly easier.

Step-by-step: Replacing the battery

Follow these steps carefully to open the fob, swap the cell, and restore proper operation.

1. Remove the key ring to give yourself room to work.
2. Look for a small screw on the back; if present, remove it with a small Phillips screwdriver.
3. Locate the seam and gently pry the two halves apart using a plastic tool or a coin (avoid metal blades that can mar the case).
4. Note the battery’s orientation (+ side usually faces up) and slide the old cell out.
5. Insert the new CR1616 with the same polarity as the original.
6. Snap the case back together, reinstall any screw, and test the buttons near the car to confirm lock/unlock and panic functions.

If the remote doesn’t respond after replacement, flip the cell to ensure correct polarity, inspect for debris on contacts, and confirm you installed the correct battery type.

Signs your Fit’s key fob battery is due for replacement

Weak coin cells often cause intermittent or reduced remote performance before they fail entirely.

• Reduced range—needing to stand closer to the car
• Intermittent button response or multiple presses required
• Panic/alarm function works but lock/unlock is inconsistent
• No LED flash on the fob (if your remote has an indicator)

Replacing the battery at the first sign of weakness prevents lockout hassles and preserves the fob’s internal switches.

Battery specs and common equivalents

Choosing a quality cell ensures reliable performance and longer life.

• Primary type: CR1616 (3V lithium manganese dioxide)
• Common equivalents/cross-references: DL1616, ECR1616, KCR1616 (brand-dependent codes)
• Recommended brands: Panasonic, Energizer, Duracell, Sony, Maxell
• Avoid stacked cells or off-size substitutes; thickness and voltage must match the original.

Sticking with reputable brands helps maintain consistent output and shelf stability, especially in cold or hot climates.

Cost and lifespan

Single CR1616 cells typically cost a few dollars, with multi-packs often cheaper per unit. In normal use, a quality CR1616 can last 2–4 years. Extreme temperatures and frequent button presses may shorten lifespan, while storing spares in a cool, dry place preserves shelf life.

Summary

Most 2007 Honda Fit key fobs use a CR1616 3V lithium coin-cell battery. Because some aftermarket or region-specific remotes differ, confirm by checking the marking on your old cell or the fob’s ID. Replacement takes just a few minutes with basic tools, restoring full remote range and reliability.

What size battery for a 2007 Honda Fit?

Size is the biggest factor to consider when shopping for a car battery because it determines whether or not it will fit under the hood and provide enough voltage to start the engine. For this reason, a 2007 Honda Fit car battery replacement should belong to group size 151R.

How to replace a 2007 Honda key fob battery?

Right there in the upper corner. There you can use a flathead that same flathead. And just kind of pivot it out just like that now go ahead and dispose of the old battery. Here pop the new one in.

What battery does a 2007 Honda Fit key fob take?

With this key fob it does go plus side down. Once you have the new battery back into place you can snap this portion of the key fob back together. You’ll want to line up the buttons snap the back. On.

What kind of battery does a Honda Fit key take?

The battery type for a Honda Fit key fob depends on the year of the vehicle, with most recent models (2013 and newer) using a CR2032 battery and older models (e.g., 2007-2013) using a CR1620 or CR1616 battery. To confirm the exact type, you should check the battery casing inside the key fob itself, as the recommended type is usually printed there.
 
This video shows how to replace a CR2032 battery in a Honda Fit key fob: 56sFobBatteryYouTube · Sep 9, 2019
Steps to Check and Replace the Battery:

1. 1. Locate the Emergency Key Blade: On the bottom of the key fob, press the release and pull out the emergency key blade. 
2. 2. Open the Fob: Use the emergency key blade or a flathead screwdriver to gently pry open the two halves of the key fob case, usually by inserting the tool into the seam at the bottom. 
3. 3. Check the Old Battery: Once the fob is open, locate the battery. The battery type (e.g., CR2032, CR1620) will be clearly printed on its surface. 
4. 4. Replace the Battery: Remove the old battery and insert the new one, ensuring the positive (+) side is facing up. 
5. 5. Reassemble the Fob: Snap the two halves of the fob back together and slide the emergency key blade back into place.