Keyless entry systems have become increasingly popular in modern vehicles, allowing drivers to unlock their cars with the simple press of a button. In this article, we will explore the various types of batteries commonly used in keyless entry systems and provide you with the information you need to keep your keyless entry functioning smoothly.
What Kind of Battery Does My Keyless Entry Need?
The type of battery your keyless entry system requires depends on the make and model of your vehicle. Most keyless entry systems use a small, coin-shaped battery that is commonly known as a “key fob battery.”
These batteries come in different sizes and chemistries, and it’s essential to know the specific requirements for your keyless entry system.
How to Determine the Battery Type
To determine the battery type for your keyless entry system, you can follow these simple steps:
1. Refer to the Vehicle’s Owner’s Manual
The owner’s manual is an excellent resource for finding information about your vehicle, including the type of battery required for the keyless entry system. Look for a section specifically dedicated to keyless entry or remote key fobs.
2. Check the Existing Battery
If you already have a battery installed in your key fob, you can remove it and check the markings on the battery.
The battery should have information such as the size, voltage, and chemistry. Make a note of these details for reference when purchasing a replacement.
3. Consult a Dealership or a Professional Locksmith
If you’re unsure about the battery type or have difficulty finding the information, you can reach out to your vehicle’s dealership or a professional locksmith.
They have the expertise and knowledge to guide you in finding the appropriate battery for your keyless entry system.
Common Battery Types for Keyless Entry Systems
While the specific battery type may vary depending on the vehicle manufacturer, there are a few common types of batteries used in keyless entry systems:
This is one of the most widely used key fob batteries. It is a lithium coin cell battery with a diameter of 20mm and a thickness of 3.2mm. The CR2032 battery provides a reliable power source for keyless entry systems and has a long lifespan.
Similar to the CR2032, the CR2025 is also a lithium coin cell battery. However, it has a slightly smaller diameter of 20mm and a thickness of 2.5mm. It is commonly found in key fobs for various vehicle models.
The CR2016 is another lithium coin cell battery used in keyless entry systems. It has a diameter of 20mm and a thickness of 1.6mm. While less common than the CR2032 and CR2025, it is still used in some key fobs.
It’s important to note that these are just a few examples of the battery types commonly used in keyless entry systems.
The specific battery for your key fob may differ, so it’s crucial to refer to the manufacturer’s guidelines or consult the owner’s manual for accurate information.
Battery Replacement Tips
When it comes to replacing the battery in your keyless entry system, here are a few tips to keep in mind:
1. Purchase a High-Quality Battery
To ensure optimal performance and longevity, it’s recommended to invest in a reputable brand of batteries. Cheaper batteries may not last as long or provide consistent power.
2. Use the Correct Battery Size and Chemistry
Always double-check that the replacement battery matches the size and chemistry requirements specified by the manufacturer. Using the wrong batteries type can result in malfunctioning or damaging the keyless entry system.
3. Replace the Battery Promptly
If you notice that your keyless entry system is becoming less responsive or the range is decreasing, it’s a good indication that the batteries needs replacement.
It’s best to replace the battery promptly to avoid any inconvenience or potential system failure.
4. Follow the Manufacturer’s Instructions
When replacing the battery, carefully follow the instructions provided by the vehicle manufacturer. Some key fobs may require specific procedures to ensure proper synchronization with the vehicle’s security system.
In conclusion, the type of battery your keyless entry system requires depends on the make and model of your vehicle.
Most keyless entry systems use small coin-shaped batteries, such as the CR2032, CR2025, or CR2016, but it’s crucial to refer to the manufacturer’s guidelines or consult the owner’s manual for accurate information.
By following the tips mentioned in this article, you can ensure a smooth and hassle-free experience with your keyless entry system. Remember, proper battery maintenance is essential for reliable and efficient operation.