It’s a familiar scenario for many car owners: you press the unlock button on your key fob, and nothing happens. Or perhaps you need to press it multiple times to get your car to respond. Before you start worrying about expensive car repairs or a faulty key fob, the solution might be as simple as a battery replacement. But naturally, the first question that pops into your head is: How Much Are Key Fob Batteries?
The good news is that replacing your key fob battery is a straightforward and cost-effective fix that you can often do yourself. In this guide, we’ll delve into the cost of key fob batteries, provide a step-by-step guide on how to replace them yourself, and give you all the information you need to get your key fob working like new again.
Understanding the Cost of Key Fob Batteries
So, how much do key fob batteries cost exactly? The price can vary depending on several factors, but generally, you’ll find them surprisingly affordable.
- Type of Battery: Most key fobs use coin cell lithium batteries, with the CR2032 being the most common. Other types like CR2025, CR2450, and CR1632 are also used depending on your car make and model. The good news is that these batteries are mass-produced and readily available.
- Brand and Retailer: You can purchase key fob batteries at various locations, from drugstores and supermarkets to auto parts stores and online retailers like Amazon. Brand-name batteries like Duracell or Energizer might be slightly more expensive than generic brands, but the difference is usually minimal.
- Single vs. Multi-Packs: Buying batteries in multi-packs can reduce the per-battery cost. If you have multiple vehicles or want to keep spares on hand, this can be a more economical option.
Typical Price Range:
Generally, you can expect to pay anywhere from $2 to $10 for a single key fob battery. Buying in bulk or opting for generic brands can bring the cost down to the lower end of this range. Even at the higher end, it’s still a fraction of the cost of a dealership service or a full key fob replacement.
Considering this, asking “how much are key fob batteries” reveals a very budget-friendly solution to a common car problem.
DIY Key Fob Battery Replacement: A Simple Guide
Replacing your key fob battery yourself is easier than you might think. You likely already have the tools needed, and the process usually takes just a few minutes. Here’s what you’ll need and how to do it:
Gather Your Tools
Before you start, gather these simple tools:
- A thin blade or watch knife: For gently prying open the key fob case. A small flathead screwdriver can also work if you’re careful.
- A new key fob battery: Determine the correct battery type for your key fob. Check your owner’s manual or look for markings on the old battery once you open the case. CR2032 is a very common type.
- A precision screwdriver (possibly): Some key fobs use tiny screws to secure the case. Check if you need a small Phillips head or flathead screwdriver.
- Tweezers (optional): Helpful for removing and inserting the small battery, especially in tight spaces.
- Your phone for photos: Taking pictures as you disassemble the fob can be a lifesaver when putting it back together.
Open the Key Fob Casing
Most key fobs are designed to snap open.
- Inspect your key fob: Look for a small notch or seam around the edge of the fob. This is where you’ll insert your prying tool.
- Gently pry: Insert the thin blade or watch knife into the notch and gently twist or pry. Work your way around the seam, applying gentle pressure. Avoid forcing it, as you could damage the plastic casing.
- Separate the halves: Once you’ve worked around the seam, the key fob case should pop open, separating into two halves.
Identify the Battery Type
Once the case is open, you’ll see the battery.
- Note the battery type: Carefully look at the markings on the old battery. It will indicate the battery type (e.g., CR2032, CR2025). Make sure your replacement battery is the correct type.
- Take a photo: Before removing the old battery, take a picture of the battery compartment. This is especially helpful as it shows the battery orientation (+ side up or down) and the position of any small components.
Replace the Old Battery with a New One
- Remove the old battery: Use your fingers or tweezers to carefully remove the old battery. Some fobs have a small clip or metal piece holding the battery in place, which you may need to gently move aside.
- Insert the new battery: Install the new battery, ensuring the correct orientation (+ side up or down, as indicated in your photo or by markings in the battery compartment).
- Ensure secure placement: Make sure the new battery is firmly seated in its compartment.
Reassemble the Key Fob
- Align the case halves: Carefully align the two halves of the key fob case.
- Snap it back together: Press the two halves firmly together until they snap securely closed. You should hear a click or feel them lock into place.
- Test your key fob: Try using your key fob to lock and unlock your car to ensure the new battery is working.
Tips for Saving Money on Key Fob Batteries
Now that you know how much key fob batteries are and how easy they are to replace, here are a few tips to save even more:
- Buy Batteries in Bulk: If you have multiple cars or use coin cell batteries for other devices, consider buying a multi-pack. This reduces the cost per battery.
- Shop Around: Compare prices at different retailers. Online marketplaces like Amazon or battery-specialty stores can sometimes offer better deals than local stores.
- Consider Generic Brands: Generic or store-brand batteries often perform just as well as brand-name batteries and can be significantly cheaper.
- DIY is Always Cheaper: By replacing the battery yourself, you avoid labor costs from dealerships or service centers, making it the most economical solution.
Conclusion
Asking “how much are key fob batteries” shouldn’t cause you stress. As we’ve seen, key fob batteries are inexpensive and readily available. Replacing them yourself is a simple DIY task that can save you time and money compared to going to a dealership or repair shop. By following this guide, you can confidently tackle a key fob battery replacement and get your car keys working perfectly again. And for all your automotive battery needs, remember to check out Interstate All Battery Center for a wide selection of car batteries and key fob replacements if needed.
