Changing a car fob battery is a simple process that can be done at home with a few basic tools. However, it’s a task that many people put off until it’s too late, resulting in a dead car fob that can leave you stranded. In this article, we’ll guide you through the process of changing a car fob battery, step by step. We’ll also cover some important topics related to car fobs, such as how to tell when your fob battery is running low, how to replace the battery in different types of fobs, and some common mistakes to avoid.
Car fobs have become an essential part of modern car ownership. They provide a convenient way to unlock and start your car without having to physically insert a key. However, like any other battery-powered device, they require regular maintenance to ensure they continue to function properly. In this article, we’ll focus on the most critical aspect of car fob maintenance: changing the battery.
Table of Contents
Why Change a Car Fob Battery?
There are several reasons why you should change your car fob battery regularly. Here are a few:
- Prevents Dead Fob: A dead car fob can leave you stranded, especially if you’re in a remote area with no access to a phone or other means of communication.
- Improves Security: A dead car fob can compromise the security of your vehicle, as it may not lock or unlock properly.
- Extends Battery Life: Changing the battery regularly can help extend the life of your car fob battery.
- Reduces Cost: Replacing a car fob battery is a cost-effective solution compared to replacing the entire fob.
How to Tell When Your Car Fob Battery is Running Low
Here are some common signs that indicate your car fob battery is running low:
- Weak Signal: If your car fob is not responding or sending a weak signal, it may be a sign that the battery is running low.
- Intermittent Functionality: If your car fob is not working properly or is intermittent, it may be a sign that the battery is running low.
- Short Battery Life: If your car fob battery is not lasting as long as it used to, it may be a sign that it’s running low.
To check the battery level, you can try the following:
- Press and hold the unlock button on your car fob for a few seconds. If the light on the fob flashes, it may indicate a low battery.
- Try to unlock your car with the fob. If it takes longer than usual to unlock, it may be a sign that the battery is running low.
Types of Car Fob Batteries
There are several types of car fob batteries available, including:
- CR2032 Batteries: These are the most common type of battery used in car fobs.
- CR2016 Batteries: These batteries are smaller than CR2032 batteries and are used in some car fobs.
- AG13 Batteries: These batteries are used in some older car fobs.
Here’s a table summarizing the different types of car fob batteries: (See Also: How Low Can You Let Tesla Battery Go? – The Risks Explained)
| Type | Size | Voltage | Capacity |
|---|---|---|---|
| CR2032 | 20mm x 3.2mm | 3V | 220mAh |
| CR2016 | 15mm x 1.6mm | 3V | 150mAh |
| AG13 | 10mm x 3.5mm | 1.5V | 100mAh |
How to Replace a Car Fob Battery
Replacing a car fob battery is a simple process that requires a few basic tools. Here’s a step-by-step guide:
Step 1: Purchase a Replacement Battery
Before you start, make sure you have a replacement battery that matches the type and size of your car fob battery. You can purchase replacement batteries at most auto parts stores or online.
Step 2: Remove the Battery Cover
Locate the battery cover on your car fob. This is usually a small plastic or metal cover that holds the battery in place. Use a small screwdriver or a coin to remove the cover.
Step 3: Remove the Old Battery
Once the cover is removed, you should see the old battery. Gently pull the battery out of the fob.
Step 4: Install the New Battery
Take the new battery and insert it into the fob, making sure it’s securely seated.
Step 5: Replace the Battery Cover
Put the battery cover back in place, making sure it’s securely fastened. (See Also: Where Can I Recycle Car Batteries For Money? – Get Cash Back)
Step 6: Test the Fob
Test the fob to make sure it’s working properly. Press the unlock button and make sure the light on the fob flashes.
Common Mistakes to Avoid
Here are some common mistakes to avoid when replacing a car fob battery:
- Using the wrong type of battery: Make sure you use a replacement battery that matches the type and size of your car fob battery.
- Not removing the battery cover properly: Make sure you remove the battery cover carefully to avoid damaging the fob.
- Not testing the fob: Make sure you test the fob after replacing the battery to ensure it’s working properly.
Recap
Changing a car fob battery is a simple process that can be done at home with a few basic tools. Here are the key points to remember:
- Check your car fob battery regularly to ensure it’s working properly.
- Replace the battery with a new one that matches the type and size of your car fob battery.
- Follow the steps outlined above to replace the battery.
- Test the fob after replacing the battery to ensure it’s working properly.
FAQs
How Often Should I Replace My Car Fob Battery?
The frequency of replacing your car fob battery depends on usage. If you use your fob frequently, you may need to replace the battery every 6-12 months. If you use your fob less frequently, you may be able to get away with replacing the battery every 2-3 years.
Can I Use a Different Type of Battery in My Car Fob?
No, you should only use a replacement battery that matches the type and size of your car fob battery. Using a different type of battery can damage the fob or prevent it from working properly. (See Also: How Much to Change Tesla Battery Model 3? Cost Breakdown)
How Do I Know if My Car Fob Battery is Dead?
Here are some common signs that indicate your car fob battery is dead:
- Weak signal: If your car fob is not responding or sending a weak signal, it may be a sign that the battery is dead.
- Intermittent functionality: If your car fob is not working properly or is intermittent, it may be a sign that the battery is dead.
- Short battery life: If your car fob battery is not lasting as long as it used to, it may be a sign that it’s dead.
Can I Replace the Battery in My Car Fob Myself?
Yes, you can replace the battery in your car fob yourself. However, if you’re not comfortable doing it yourself, you can take your fob to a professional mechanic or auto electrician.
How Much Does it Cost to Replace a Car Fob Battery?
The cost of replacing a car fob battery varies depending on the type and size of the battery. On average, you can expect to pay between $5-$15 for a replacement battery.