Looking for the perfect battery to power up your key fob? Well, look no further! In this blog article, we’ll explore the answer to the burning question on your mind: what size battery does a key fob take? With our hassle-free solution, you won’t need to spend precious hours scouring the internet or walking store aisles. We’ve got all the information you need, right here! So, let’s jump right into it and unravel the mystery behind the size of batteries that keep your key fob running smoothly.
What Size Battery Does a Key Fob Take?
Introduction
Key fobs have become an essential accessory for modern vehicles, providing convenience and security to car owners. These small devices allow us to remotely lock and unlock our cars, open the trunk, activate the panic alarm, and even start the engine from a distance. However, like any electronic device, key fobs require a power source to function. In this article, we will explore the various sizes of batteries commonly used in key fobs and provide you with all the information you need to know to ensure your key fob stays powered up.
Understanding Key Fob Batteries
Key fob batteries come in different sizes, shapes, and types, depending on the make and model of your vehicle. It’s important to note that not all key fobs use the same battery size, so it’s crucial to determine the correct battery for your specific key fob model. The most common types of batteries used in key fobs include:
- CR2032
- CR2025
- CR2016
- CR1620
- CR1632
1. CR2032
The CR2032 battery is one of the most widely used and readily available key fob batteries. It is a coin-shaped lithium battery with a diameter of 20mm and a thickness of 3.2mm. This battery size is commonly used in key fobs for various car brands, including but not limited to:
- Toyota
- Honda
- BMW
- Ford
- Chevrolet
2. CR2025
The CR2025 battery is another popular choice for key fobs, and it is similar to the CR2032 but slightly thinner, with a thickness of 2.5mm. It is commonly used in key fobs for car brands such as:
- Audi
- Volkswagen
- Mercedes-Benz
- Nissan
- Subaru
3. CR2016
The CR2016 battery is smaller in diameter compared to the CR2032 and CR2025, with a diameter of 20mm and a thickness of 1.6mm. Car brands that commonly use this battery size include:
- Volvo
- Hyundai
- Kia
- Mazda
- Land Rover
4. CR1620
The CR1620 battery is slightly larger than the CR2016, with a diameter of 16mm and a thickness of 2.0mm. Some car brands that use this battery size in their key fobs are:
- Chrysler
- Dodge
- Mitsubishi
- Jeep
- Mini Cooper
5. CR1632
The CR1632 battery is similar in size to the CR2032 but with a slightly smaller thickness of 3.2mm. It is used in key fobs for car brands such as:
- Lexus
- Cadillac
- Infiniti
- Saturn
- Buick
How to Determine the Battery Size for Your Key Fob
To determine the specific battery size required for your key fob, you can follow these steps:
- Consult your vehicle’s owner’s manual: The owner’s manual usually provides information about the battery size and type needed for your key fob. Look for the key fob section in the manual or refer to the index.
- Inspect the key fob: In many cases, the battery size is imprinted on the key fob itself. Look for a marking or label indicating the battery type and model.
- Search online: If you don’t have access to the owner’s manual or the key fob markings are unclear, you can search online using your vehicle’s make, model, and year along with the term “key fob battery size.” This should lead you to reliable sources or forums where others have shared the correct battery size for your specific key fob model.
- Seek professional assistance: If all else fails, you can visit your vehicle’s dealership or a trusted auto locksmith. They will have the necessary knowledge and resources to determine the correct key fob battery size for you.
Replacing Key Fob Batteries
Now that you know what battery size your key fob requires, it’s important to understand how to replace the battery when it eventually runs out. Here are some steps to follow:
- Gather the required materials: To replace the key fob battery, you will need a new battery of the correct size, a small flathead screwdriver or a coin, and possibly a pair of tweezers if the battery is recessed.
- Locate the battery compartment: The battery compartment is usually located on the back cover of the key fob. Some key fobs have a small screw holding the cover in place, while others have a sliding or rotating mechanism to open the compartment.
- Open the battery compartment: Use the appropriate method to open the battery compartment and expose the old battery.
- Remove the old battery: Carefully remove the old battery from the compartment, ensuring you note its orientation. Some key fobs have the positive (+) side facing up, while others have it facing down.
- Insert the new battery: Place the new battery into the compartment, aligning it with the correct polarity as indicated by the markings or the old battery’s orientation.
- Close the battery compartment: Securely close the battery compartment, ensuring it is properly sealed to prevent water or moisture damage.
- Test the key fob: After replacing the battery, test the key fob by using its various functions to ensure it is working correctly.
Tips for Extending Key Fob Battery Life
To prolong the lifespan of your key fob battery and reduce the frequency of replacements, consider the following tips:
- Avoid unnecessary button presses: Pressing buttons on the key fob when you’re not near your vehicle wastes battery power. Try to minimize the number of unnecessary button presses.
- Store the key fob in a cool, dry place: Extreme temperatures, especially heat, can drain the battery quickly. Store your key fob in a cool, dry place to prevent excessive battery drain.
- Keep the key fob clean: Dirt and debris can affect the key fob’s performance and cause the battery to drain faster. Regularly clean the key fob, particularly the buttons and the battery compartment.
- Replace the battery promptly: When you notice a decrease in the key fob’s performance, such as reduced range or delayed response, it’s time to replace the battery. Delaying replacement can result in further strain on the battery and potential key fob malfunction.
Knowing the correct battery size for your key fob is essential to ensure it continues to function reliably. By familiarizing yourself with the various battery sizes and following the steps outlined in this article, you can easily determine the appropriate battery for your key fob and replace it when necessary. Remember to handle the battery replacement process with care and follow the manufacturer’s instructions. With a properly functioning key fob, you can enjoy the convenience and security it offers for years to come.
Frequently Asked Questions
What size battery does a key fob take?
Key fobs, also known as keyless entry remotes, require specific batteries to function properly. The size of the battery can vary depending on the make and model of the key fob. Here are some common questions regarding the size of batteries used in key fobs:
What type of battery does my key fob need?
It is important to refer to your vehicle’s manual or contact the manufacturer to determine the specific battery type for your key fob. Different key fobs may require different battery sizes, such as CR2032, CR2025, or CR2016.
How do I find out the battery size for my key fob?
To find out the battery size for your key fob, you can check the user manual that came with your vehicle. If you don’t have the manual, you can look for a label or marking on the key fob itself that indicates the required battery size. Alternatively, you can visit the manufacturer’s website or contact their customer support for assistance.
Can I replace the battery in my key fob myself?
Yes, in most cases, you can replace the battery in your key fob yourself. Many key fobs have a removable back cover that allows easy access to the battery compartment. Simply open the cover, remove the old battery, insert a new battery of the correct size, and close the cover. However, if you are unsure or uncomfortable with the process, it is always recommended to consult a professional or visit a qualified service center.
How often should I replace the battery in my key fob?
The battery life of a key fob can vary depending on usage and the quality of the battery. On average, key fob batteries may last anywhere from one to three years. However, it is advisable to replace the battery as soon as you notice a decrease in the range or responsiveness of your key fob, rather than waiting for it to completely die.
Are key fob batteries expensive?
The cost of key fob batteries can vary depending on the brand and where you purchase them. Generally, key fob batteries are relatively inexpensive and can be found at electronics stores, automotive parts retailers, or even online. It is always a good idea to compare prices and read reviews before making a purchase to ensure you are getting a reliable battery at a reasonable price.
Final Thoughts
Key fobs are essential for unlocking and starting vehicles with remote control functionality. When it comes to the battery size for key fobs, it varies depending on the make and model of the vehicle. To determine the correct battery size, refer to the owner’s manual or contact the vehicle manufacturer. Typically, key fobs use small coin cell batteries like CR2032 or CR2025. It is important to remember that replacing the battery promptly when it is low can prevent any inconvenience caused by a key fob failure. So, next time you wonder, “What size battery does a key fob take?” check your vehicle’s manual for the accurate information.
