Best Car Key Fob Batteries (2022): Reviews & Comparison

Looking for the best car key fob batteries? You've come to the right place! A compiled list of the top-rated car key fob batteries on the market will be discussed here, so you can find the perfect one for your needs. Whether you're looking for a high-capacity battery or something that is durable and long-lasting, this blog post will help you find the best car key fob batteries out there.

LiCB CR2032 3V Lithium Batteries

Looking for a reliable and affordable battery option? Look no further than LiCB's 3V Lithium Batteries! These batteries feature a long shelf life of up to 3 years and are perfect for low drain electronic devices. They are also leak-resistant and built with resistance against premature discharge, making them a high-quality option that you can trust. CE and ROHS certified these batteries provide a reliable power source for your devices.

We earn a commission if you make a purchase, at no additional cost to you.

Which are the best car key fob batteries?

Keyless entry systems have become increasingly popular in recent years, as they offer a convenient way to unlock and start your car without having to fumble for keys. However, these systems rely on batteries to operate, and when the batteries die, you may be left stranded. That's why it's important to choose the right batteries for your key fob.

The best battery for your key fob will depend on your specific needs and preferences. So to help you choose the perfect match, here is a list of the best car key fob batteries on the market.

LiCB CR2032 3V Lithium Battery - This battery is one of the most popular choices for key fobs, as it offers a long lifespan and is relatively inexpensive. This high-quality CR2032 battery is CE, and ROHS certified and has been tested under strict quality control standards. It offers a longer battery life and provides long-lasting power. With a shelf life of 3 years, it is a reliable choice for your car key fob and other electronic devices.

Energizer CR2032 3V Lithium Battery - Another great choice for car key fob batteries is the Energizer CR2032 3V lithium battery. This battery is also very popular and is known for its long-lasting power. It is also very affordable, so you won't have to worry about spending a lot of money on batteries for your car key fob. These coin cell batteries hold power for up to 10 years in storage. It performs well in extreme temperatures from -22 F to 140 F, so it can be used in a variety of applications. 

Energizer CR2032 Lithium Batteries

The Energizer 2032 Lithium Coin Battery is a long-lasting battery that you can depend on in the most power-hungry devices. It works with a wide range of products including toys, medical devices and more. This is an ideal coin cell battery for use in wearable electronics such as heart rate monitors, remote controls, glucose monitors and keyless entry systems. It’s also great for use in electronic devices such as flashlights and cameras.

We earn a commission if you make a purchase, at no additional cost to you.

Mercedes-Benz Remote Key Battery - The perfect replacement for your old and worn-out key fob batteries. These top-of-the-line replacement batteries will fit perfectly and work with almost every Mercedes Benz car key.

Mercedes-Benz Remote Key Battery

Looking for a top-rated brand of key battery that is designed specifically for Mercedes Benz car keys? Look no further than the Remote Key Battery from Mercedes-Benz. This battery is compatible with almost every Mercedes car key and is known for its durability and long-lasting performance.

We earn a commission if you make a purchase, at no additional cost to you.

USARemote 3V CR2032 Battery - This is an excellent option for those who are looking for a low-cost, high-quality solution to their power needs. It comes blister packaged to ensure the quality of the battery remains fresh and ready to be used when you receive it. These CR2032 batteries are used in many remote controls, calculators, cameras, and other devices where small size and long life are important considerations.

USARemote 3V CR2032 Battery

This USARemote 3V CR2032 Battery is a reliable, affordable replacement for your lost or damaged key fob battery. It's also a great choice if you need an extra battery to keep on hand. The CR2032 battery is easy to install and works with most key fobs. It's blister packaged to ensure the battery remains fresh.

We earn a commission if you make a purchase, at no additional cost to you.

Amazon Basics Lithium Coin Cell Battery - These batteries from AmazonBasics are designed for use in small electronics. This pack contains four batteries that are individually wrapped to prevent them from reacting with air and leaking, which can happen when exposed to moisture. These batteries have a shelf life of eight years, so you don't have to worry about them losing their charge over time. They're made with high-quality lithium cells and are guaranteed leak-free.

Amazon Basics Lithium Coin Cell Battery

AmazonBasics CR2032 Lithium Coin Cell Batteries are made with the highest quality materials and rigorously tested to ensure performance and durability. They are manufactured under stringent quality control standards, which ensures that AmazonBasics products are reliable and of extremely high quality.

We earn a commission if you make a purchase, at no additional cost to you.

Why choose the best car key fob battery?

When it comes to batteries, choosing the best one for your car key fob can have a number of benefits. 

  • You want your car to start every time you turn the key. 
  • A strong key fob battery will ensure that your doors lock and unlock properly - keeping you and your belongings safe. 
  • A good quality battery will also help extend the life of your car's key fob overall. 
  • Choosing the best battery for your car's key fob can also save you money in the long run, as high-quality batteries last longer and need to be replaced less often than lower-quality options. 
  • Finally, choosing the best battery for your car's key fob will give you peace of mind, knowing that your key fob is in good working condition and that your security system is up to par.

How to choose the best battery for your car key fob?

There are a few things to keep in mind when choosing the best car key fob battery: 

1. Make sure to choose a battery that is specifically designed for use in car key fobs. Generic batteries may not fit properly or may not work with your car's system. 

2. Check the reviews to see what other drivers have to say about the battery you're considering. 

3. Compare prices to get the best value for your money. 

4. Make sure to choose a reputable brand that offers a warranty on its products.  

With these factors in mind, you're sure to find the best car key fob battery for your needs.

How long do key fob batteries last?

The lifespan of key fob batteries varies depending on the make and model as well as the type of key fob battery you have. However, on average, key fob batteries last between two and four years.

When the battery begins to run low, you'll usually start getting warnings on your car's dashboard. It's important to replace the battery as soon as possible because a low battery can eventually lead to the key fob not working at all.

If you're not sure how to replace the battery in your key fob, there are plenty of online tutorials that can show you how. And most car dealerships will also be able to do it for you if you bring it in for service.

Why is my key fob battery dying so quickly?

There are a few potential reasons why your key fob might have short battery life.

First, if you use your key fob regularly to unlock and lock your car doors, the battery may just be getting weaker over time and need to be replaced more frequently. Batteries don't last forever, and the more you use them, the shorter their lifespan will be. Key fob batteries are especially prone to wear and tear since they tend to get used a lot.

Additionally, temperatures can also affect how quickly a battery drains - in extreme cold or hot weather, batteries tend to lose power more quickly.

Finally, some key fobs have built-in features like LED lights or displays that can also eat up power, causing the battery to die faster.

If you're concerned about your key fob's battery life, it's best to consult with your car's manufacturer or dealership for specific advice on replacement batteries and maintenance.


As you can see, there are many factors to consider when choosing the best car key fob batteries. It is important to find the right battery for your needs to ensure that your key fob works properly and lasts as long as possible. We hope this article has helped you make an informed decision about the best type of battery for your car key fob.

About the author, Phil Borges

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.