How To Change Battery Key Fob?

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Last Updated on September 15, 2022 by Ellis Gibson (B.Sc. in Mechanical Engineering)

If you’re like most people, you depend on your car key fob to open your doors and start your car. So, what do you do when your car key fob starts to act up and doesn’t work as well as it used to? You could take it to a dealer and have them replace the battery, but why pay the high dealer price when you can do it yourself?

In this article, we’ll show you how to replace the battery in your car key fob quickly and easily. You’ll need a new battery, a small screwdriver, and a few minutes of time. With this guide, you’ll have your car key fob working like new in no time!

So, how to change battery key fob?

To replace the battery in your car key fob, first remove the old battery. Then, insert the new battery in the same orientation as the old one. Finally, reassemble the key fob and test it to make sure it is working properly.

Let’s dig into it and find out what’s going on.

Step By Step Process On: How To Change Battery Key Fob?

Here I will explain you step by step process of how to change battery key fob? let’s see how to change battery key fob.


  1. A flathead screwdriver
  2. A butter knife (or another flathead screwdriver)
  3. A new battery


Start by finding the battery cover on your key fob. In most cases, the cover is located on the back of the fob. If your key fob has a key ring attached, you may need to remove the key ring before you can access the battery cover.


Use a flathead screwdriver or a butter knife to pry open the battery cover. Be careful not to damage the cover as you pry it open.


Remove the old battery from the key fob. You may need to use a flathead screwdriver or a butter knife to help dislodge the old battery.


Insert the new battery into the key fob. Make sure the positive and negative terminals are facing the correct way.


Snap the battery cover back into place.

You’ve now successfully changed the battery in your key fob!

If you wanted to watch a youtube video that shows you how to change battery key fob? I have included a video below:

How Do I Open My Key Fob?

If you’re like most people, your car key fob is attached to your keychain and goes everywhere with you. But have you ever wondered how to open it up?

Generally, all you need to do is use a strong fingernail to pry it open. If that doesn’t work, you can use a small flat head screwdriver to gently pry it open from more than one location around the fob. Just be careful not to break the key fob shell!

An additional, If you want to open up your key fob, all you usually need is a strong fingernail. If that doesn’t work, though, you can try using a small flat head screwdriver to pry it open gently. Remember to pry gently from more than one location around the fob, so you don’t break the key fob shell.

How Much Does It Cost To Get Battery Changed In Key Fob?

How much does it cost to get battery changed in key fob?

The cost of replacing a key fob battery is usually very reasonable. In most cases, you can expect to pay $10 or less for a new battery. Some key fobs require two batteries, but this is still usually quite affordable.

Many battery specialist shops and dealers will replace the battery for free, as it only takes a moment or two. However, if you need to replace the battery yourself, it is generally a quick and easy process. Simply remove the old battery and insert the new one, making sure to observe the correct polarity.

As well as that, Car key batteries usually cost $10 or less to replace. Some car keys require two batteries. You can usually get the batteries replaced for free at battery specialist shops or dealers.

How Long Does A Key Fob Battery Usually Last?

On average, a key fob battery will last between one and two years. However, this can vary depending on the make and model of your vehicle, as well as how often you use your key fob. For instance, if you regularly use your key fob to unlock your car door from a distance, the battery may drain more quickly. Additionally, extreme temperatures can also affect the lifespan of a key fob battery. If you live in an area with very cold winters or very hot summers, your key fob battery may not last as long as it would in more temperate climates.

How Much Does A Key Fob Battery Cost?

We all know the feeling. You’re standing at your car, key fob in hand, ready to unlock the door and head off to your next destination. But then you realize that your key fob is dead. No lights come on when you press the buttons and the doors remain locked.

Now you’re faced with a choice. Do you go to the store and buy a new key fob battery, or do you just use the spare key that you keep hidden in your purse or wallet?

If you’re like most people, you’ve probably never even thought about the key fob battery. After all, it’s not something that you ever have to replace. But when it does die, it can be a real pain.

So, how much does a key fob battery cost?

The answer, of course, depends on the make and model of your car. But in general, you can expect to pay anywhere from $20 to $50 for a new key fob battery.

Of course, you could always just use your spare key. But if you’re like most people, you probably don’t even have a spare key. And even if you do, it’s not always convenient to use.

A new key fob battery is always the best option. Not only will it save you the hassle of having to use a spare key, but it will also ensure that your key fob always works when you need it.

Final Word

There you have it! In just a few easy steps, you now know how to change the battery in your car key fob remote. We hope this guide was helpful and that you’ll never have to worry about a dead car key fob again.

If you found this guide helpful, be sure to check out our other helpful guides on our blog. And if you ever have any questions, our team of experts is always here to help.

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