Powering Your Security: What is the Best Battery for Key Fob

Every driver knows how frustrating it can be when our trusty key fobs start losing their mojo. That’s why, in this guide, you’ll be presented with some great options to find the best battery for a key fob that fits your needs and the needs of your trusty ride. So, let’s get cracking and ensure you get the perfect fit that never leaves you stranded.

Having trouble getting into your four-wheeler? You’re probably wondering – what is the best battery for a key fob? The best options on the market are made by Panasonic, RemoteOverstock, and Duracell, but each of these batteries has its unique features. From lithium and alkaline construction to being specifically designed for a particular car model, let’s review them individually and find your perfect match.

What Are Coin Cell Batteries?

Have you ever wondered what keeps the key fobs going strong? The answer lies in a tiny powerhouse called the coin cell battery. These compact batteries, often resembling coins (hence the name), are designed to provide a reliable source of energy for various small electronic devices, including key fobs.

What Is the Difference Between Lithium, Silver Oxide, and Alkaline Coin Cell Batteries?

When it comes to these handy powerhouses, not all coin cell batteries are created equal. The lithium ones are known for their impressive energy density and longer lifespan, offering consistent performance even in extreme temperatures. Then you’ve got the silver-oxide batteries prized for their stable voltage and long shelf life, ensuring that your keys remain powered for an extended period.

However, if you’re looking to cut car expenses, the more cost-effective option would be the alkaline coin cell batteries. They are readily available and widely used in various electronic devices. Offering dependable power even though they tend to have a shorter lifespan in high-drain devices.

Here’s an overview of the pros and cons of each type to help you understand the main differences between these options:

Battery TypeProsCons
LithiumHigh energy density and long-lasting performanceHigher cost compared to other types
Silver OxideStable voltage and reliable performanceThe relatively higher price point
AlkalineReadily available and budget-friendlyLower energy density and a shorter lifespan in high-drain devices

Now that you’re armed with this knowledge, it’s time to review some top-rated options and take your pick out of the bunch. So, let’s power up the security of your prized ride and find the perfect match that will get your car keys working in perfect harmony.

Person handing over car keys to another person
Now that remote keys are all the rage, it’s important to keep them working properly

The Panasonic Coin Cell Batteries Are Always a Reliable Choice

With so many options out on the market, you might be wondering – what is the best battery for a Mercedes key fob? What brand battery is best for a key fob of a 2014 Ford Fusion? How do I know which is the perfect pick for my vehicle’s specific make and model? Well, there are plenty of options if we’re getting this specific. But only one product keeps popping out as the ultimate choice for all – the Panasonic Coin Cell Batteries.

Key Features of Panasonic Coin Cell Batteries

Panasonic offers a reliable power solution for any electronic device, including the one you use for opening your four-wheeler. With a nominal voltage of 3 Volts, these CR2025 lithium batteries are perfect for key fobs, calculators, digital voice recorders, remotes, and plenty of other devices.

While a single battery is priced at $4, you can grab an even better deal by opting for a 2-pack or a 4-pack option. No matter what you choose, these batteries are designed to perform consistently in a wide range of operating temperatures, from 14°F (-10°C) to 140°F (60°C). Plus, they boast an impressive shelf life of up to 8 years, ensuring you always have reliable power when you need it the most.

Pros and Cons of Panasonic Coin Cell Batteries

Here are some of the biggest advantages when it comes to these Panasonic batteries:

  • Reliable power source for a wide range of electrical devices,
  • Available in convenient 2-pack or 4-pack options for better value,
  • Long shelf life of up to 8 years,
  • Suitable for use in a wide range of operating temperatures,
  • Manufactured by a reputable brand in the industry.

On the other hand, here are some downsides you should keep in mind:

  • Lithium batteries might not be what you’re looking for,
  • A single piece is priced at $4, which may be relatively higher compared to other options,
  • They’re not designed for a specific make or model.

Customer Reviews  of Panasonic Coin Cell Batteries

These Panasonic batteries have garnered numerous positive customer reviews, highlighting their quality and long-lasting performance. Which is, after all, expected from a reputable brand like this. According to these reviews, you’ll be using these batteries for an extended period without experiencing any issues. Perfect if you’re planning to explore the most famous routes in the US this summer.

While the majority of reviews are positive, a small number of customers have raised concerns about the performance of these batteries. These negative reviews, however, stand in contrast to the overwhelmingly positive feedback. It’s important to consider them in light of the overall positive consensus this particular product has garnered.

key fob for a modern car
No matter what car you own, Panasonic is always a good option

RemoteOverstock Produces the Best CR2032 Battery for a Key Fob Specifically for Subaru Vehicles

Suppose you’re having trouble with opening your Subaru. In that case, you’re probably wondering – what is the best battery for a Subaru key fob? No matter if it’s Ascent, Crosstrek, Forester, Impreza, Outback, or any other Subaru manufactured from 2017 to 2021, the best 2032 battery for a key fob is the RemoteOverstock Key Fob Battery.

Key Features of RemoteOverstock Key Fob Battery

These CR2032 batteries come in a convenient 2-pack, priced at $25. Rest assured that these batteries are provided by the OEM of Subaru remote fobs, ensuring compatibility and high-quality performance. The battery replacement process is simple and hassle-free, and there is no need for remote reprogramming.

To further assist you, an easy-to-follow, detailed instructional video is included, accessible via a link on the product packaging – it will serve as a helpful guide throughout the whole process, from start to finish. Each pack also includes a dual-purpose opening tool, which serves to open the remote and remove the battery without causing any damage to your remote case.

Pros and Cons of RemoteOverstock Key Fob Battery

Here are the biggest advantages of the RemoteOverstock batteries:

  • Specifically designed for a wider range of Subaru vehicles,
  • Includes a dual-purpose opening tool,
  • Batteries up to OEM standards,
  • Detailed instruction video included,
  • East installation process.

Now, let’s take a look at some downsides:

  • Relatively higher price compared to other options in the market,
  • Can’t be bought individually,
  • Limited compatibility with other car models or remote fob brands.

Customer Reviews of RemoteOverstock Key Fob Battery

RemoteOverstock batteries have received mostly positive ratings from customers who have purchased and used them. Many reported that they work well, ensuring reliable performance and longevity. Additionally, customers have expressed satisfaction with the prompt shipping of the product, receiving it in a timely manner.

It is worth noting that while there are a few negative ratings for the product, there are no adjacent reviews available to provide further context or details about these negative experiences. Therefore, it is difficult to determine the specific issues in these few negative ratings. The overall positive feedback, on the other hand, speaks volumes.

Subaru automobile dealership Sign against blue sky
No matter what Subaru you drive, getting an OEM product is your best bet

The Duracell Batteries Are the Ultimate Choice for Those Looking for Alkaline Batteries

Let’s end this list with another reputable brand in the industry – Duracell. No matter if you drive a family SUV or a small city car, the widely acclaimed Duracell Alkaline Battery Pack is a reliable power solution for a wide range of devices. Including your remote keys, regardless of their brand.

Key Features of Duracell Alkaline Battery Pack

Each Duracell pack contains 4 alkaline coin cell batteries, specifically the Duracell 76A 1.5 Volt model. Priced at $6, these batteries offer excellent value for your money. And with Duracell’s trusted reputation for quality and performance, you can rely on these batteries to provide consistent power when you need it the most.

One notable feature of the Duracell batteries is their impressive shelf life, guaranteed for 5 years in storage, ensuring they will retain their power and be ready to use whenever you require them. This long-lasting performance gives you the confidence that your devices will remain powered and functional.

Pros and Cons of Duracell Alkaline Battery Pack

Here are the biggest advantages of these Duracell batteries:

  • Suitable for various devices,
  • Includes 4 pieces in the pack,
  • The pack is reasonably priced at $6,
  • Guaranteed for 5 years in storage,
  • Manufactured by a trusted and reputable brand.

On the other hand, here are some downsides you should keep in mind:

  • Alkaline batteries might not be what you’re looking for,
  • The only options are buying individual batteries or a 4-pack,
  • May not be the most cost-effective option compared to other brands or bulk packs.

Customer Reviews of Duracell Alkaline Battery Pack

The Duracell Alkaline Batteries have garnered numerous positive customer reviews, solidifying their status as an Amazon’s Choice product. This label means the batteries are highly rated and competitively priced, making them a popular choice among consumers. In that regard, the abundance of positive reviews serves as a testament to their overall quality and performance.

While the majority of customers have expressed satisfaction with their purchase, there have been a few negative comments stating that these are low-powered batteries. However, it’s important to note that these comments are relatively few and not representative of the overall customer experience. Additionally, Duracell’s reputation for excellent customer service allows for easy resolution and refunds if needed.

A woman sitting behind the wheel smiling
Choosing a reputable brand like Duracell ensures you peace of mind

How to Choose the Best Battery for Key Fob

Having the right battery for your key fob is essential for ensuring the smooth operation of your vehicle’s security system. A well-functioning remote fob provides convenience and enhances your peace of mind. You certainly don’t want it to be why your four-wheeler ends up on a list of most stolen cars.

Let’s explore three important factors to consider when making your selection:


Obviously, it’s crucial to ensure compatibility with your specific make and model, especially regarding size, voltage, and technology. Refer to your vehicle’s manual or consult the manufacturer’s specifications to identify the exact battery type.

Battery Performance

Opt for batteries that offer reliable and consistent performance, so look for brands that are known for their quality and longevity. Consider factors such as battery lifespan, voltage stability, and performance in extreme temperatures.

Battery Quality and Brand Reputation

Choosing a product from a trusted brand ensures quality and reliability, as these brands often prioritize quality control and use high-grade materials, resulting in batteries that meet strict industry standards. Additionally, renowned brands often have a track record of customer satisfaction, providing assurance that you are purchasing a reliable product.

Additional Tips Before Buying the Product

Before proceeding with your final purchase, here are a few additional tips to remember. Firstly, it’s always a good idea to double-check the battery’s expiration date to ensure its freshness and optimal performance.

Moreover, it’s best to go for reputable retailers or authorized dealers to avoid counterfeit or low-quality products. Reading customer reviews and ratings can provide valuable insights into the performance and reliability of specific brands.

It’s Time to Power Up Your Remote Keys and Enjoy Fob-Tastic Security

When it comes to powering your remote keys, choosing the right battery is the key to unlocking top-notch security. With your perfect fit, you’ll be cruising with peace of mind, knowing that your vehicle’s security is in great shape. So, go ahead and get your batteries – the adventure is waiting for you!