Key fobs have become an essential part of modern vehicle convenience, allowing car owners to lock, unlock, and start their vehicles with just the push of a button. However, like any electronic device, key fobs rely on batteries to function. If your key fob stops working, it’s often because the battery has run out. Understanding the most common key fob battery types can help you replace them efficiently and avoid unnecessary frustration.

Why Knowing Your Key Fob Battery Type Matters

Replacing a key fob battery may seem simple, but using the wrong type can damage your device or prevent it from working correctly. Each key fob is designed to operate with a specific battery type, which ensures optimal performance. By knowing your key fob battery type, you can save time, money, and stress.

Common Key Fob Battery Types

Here are the most common key fob battery types used in vehicles today:

1. CR2032

The CR2032 battery is one of the most widely used key fob batteries. It is a small, round lithium coin cell battery that is 20mm in diameter and 3.2mm thick. CR2032 batteries are known for their long lifespan, usually lasting 2–3 years under normal use. Many car manufacturers, including Honda, Toyota, and Nissan, commonly use CR2032 batteries in their key fobs.

2. CR2025

Slightly thinner than the CR2032, the CR2025 is another popular lithium coin cell battery. This measures 20mm in diameter and 2.5mm thick. While it has a slightly lower capacity than the CR2032, it can still provide reliable performance for your key fob. Some car models use the CR2025 instead of the CR2032, so checking your vehicle’s manual is essential.

3. CR2016

The CR2016 is a smaller lithium coin cell battery, measuring 20mm in diameter and 1.6mm thick. Its compact size makes it ideal for key fobs that require a slimmer battery. Although it has a shorter lifespan than the CR2032 and CR2025, it’s still a common choice for certain car brands and older key fob models.

4. Other Less Common Batteries

While CR2032, CR2025, and CR2016 dominate the market, some key fobs may use less common batteries like CR2450 or CR1632. These are typically found in specialty vehicles or older models. Always refer to your car’s user manual or consult a professional before purchasing a replacement battery.

How to Replace a Key Fob Battery Safely

Replacing your key fob battery is usually straightforward:

1. Open the Key Fob: Use a small screwdriver or coin to carefully pry open the key fob casing. 
2. Remove the Old Battery: Take note of the battery’s orientation (positive and negative sides). 
3. Insert the New Battery: Ensure the new battery is positioned correctly to avoid damaging the device. 
4. Close the Key Fob: Snap the casing back together securely. 
5. Test the Key Fob: Check if your key fob functions properly. 

If you’re unsure or uncomfortable replacing the battery yourself, professional help is recommended.

Before we wrap up, it’s worth noting that Max Mobile and Gifts is the best place for professional phone and iPhone repair services in Vancouver, Canada. We also offer a wide selection of accessories and gifts for all occasions. If your key fob or phone battery needs attention, our team can provide expert solutions quickly and reliably.

Conclusion

Knowing the most common key for battery types, such as CR2032, CR2025, and CR2016, can save you time and hassle when it’s time for a replacement. Always check your key fob specifications and follow proper replacement steps to ensure your device continues to operate smoothly. By staying informed, you can enjoy the convenience of your key fob without interruption.