Replace Car Fob Battery – Here’s the Size You Need!

Introduction

Hi, I’m Scott from fobbattery.com. Over the years, we have created more than 500 videos, demonstrating how to replace key fob batteries for various car makes and models around the world.

In this blog, I’ll break down the most common coin batteries used in key fobs for over 20 popular car brands. From BMW to Nissan, I’ll help you identify the right battery for your key fob.

Sale
Amazon Basics 4-Pack CR2032 Lithium Coin Cell Battery, Compatible with AirTag, 3 Volt, Long Lasting Power, Mercury-Free
  • Plastic, Metal
  • Imported
  • IN THE BOX: 4-pack of CR2032 3 volt lithium coin cell batteries; replacement for BR2032, DL2032, and ECR2032

BMW Key Fob Battery

The most common battery for BMW key fobs is the CR2032. This 3-volt coin battery is easy to find and replace.

Ford Key Fob Battery

For Ford models, the CR2032 coin battery is also the most commonly used. This battery is reliable and widely available.

Hyundai Key Fob Battery

If you own a Hyundai, you’ll need the CR2032 coin battery. It works with all Hyundai key fobs.

Honda Key Fob Battery

The CR2032 coin battery is the most common for Honda key fobs. This battery is known for its durability.

Mazda Key Fob Battery

Mazda key fobs typically use the CR2025 coin battery. This battery is slightly thinner than the CR2032 but equally effective.

Acura Key Fob Battery

For Acura key fobs, the CR2032 and CR2025 are the most common batteries. Either of these will work well.

Sale
Energizer Battery, 3V Lithium Coin Cell Batteries, Packaging May Vary, Black, 2 Count
  • 2 pack of Energizer 2025 Batteries, 3V Lithium Coin Batteries
  • Performs in extreme temperatures from -22 F to 140 F
  • Long-lasting choice for calculators, scales and remote batteries

Scion Key Fob Battery

Scion key fobs usually require the CR2016 coin battery. This 3-volt battery is smaller but efficient.

Jeep Key Fob Battery

Jeep key fobs most commonly use the CR2032 coin battery. It’s a reliable choice for your Jeep.

Chrysler Key Fob Battery

For Chrysler models, the CR2032 coin battery is the most common. This battery is both durable and easy to replace.

Dodge Key Fob Battery

Dodge key fobs also use the CR2032 coin battery. It’s a standard choice for many car brands.

Ram Key Fob Battery

Ram vehicles typically require the CR2032 3-volt coin battery. This battery is widely available and dependable.

Kia Key Fob Battery

All Kia key fobs use the CR2032 coin battery. This makes it easy to find a replacement.

Subaru Key Fob Battery

Subaru key fobs commonly use the CR2016 or CR2032 coin battery. Both options are effective.

Sale
Energizer 2016 Batteries, 3 Volt Battery Lithium Coin, 2 Count
  • Used in heart rate monitors, keyless entry, glucose monitors, toys & games
  • Important: Coin Lithium batteries are not interchangeable; Both the diameter and thickness can vary based on the cell designation; While some device battery compartments may be sized in a way that different battery types can fit in the compartment, the capacities will vary by size
  • Reliable, dependable power

Toyota Key Fob Battery

Toyota key fobs most often use the CR2016 and CR2032 coin batteries. These batteries are reliable and easy to replace.

Chevy Key Fob Battery

For Chevy key fobs, the CR2032 lithium 3-volt battery is the most common. It’s a durable and long-lasting option.

Cadillac Key Fob Battery

All Cadillac models use the CR2032 3-volt coin battery. This battery is both reliable and easy to find.

GMC Key Fob Battery

GMC key fobs typically require the CR2032 3-volt coin battery. It’s a standard choice for many car brands.

Volkswagen Key Fob Battery

Volkswagen key fobs most commonly use the CR2032 coin battery. This battery is dependable and widely available.

Buick Key Fob Battery

All Buick models use the CR2032 3-volt coin battery. This makes finding a replacement simple.

Mitsubishi Key Fob Battery

Mitsubishi key fobs use the smaller CR1620 3-volt battery as well as the common CR2032. Both options are effective.

Nissan Key Fob Battery

Nissan key fobs most commonly use the CR2032 coin battery. This battery is reliable and easy to replace.

Sale
Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 4-Battery Pack
  • LONG LASTING PERFORMANCE: Panasonic CR1620 3.V batteries are engineered to provide reliable, long-lasting power
  • CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic lithium battery cells and packaging (in our “sunburst” package as shown) meet or exceed IEC 60086-4:2019; ANSI C18.3M Part 2:2024; CFR 16, Part 1700.20 and CFR 16, Part 1263 as required by Reese’s Law (Pub. L. 117-171, 15 U.S.C 2056e)
  • LONG STORAGE LIFE: Our CR1620 batteries maintain power up to 8 years when unused and properly stored

Most Common Key Fob Battery

After reviewing over 20 car brands, it’s clear that the CR2032 is the most common coin battery used in key fobs. This 3-volt battery is widely available and works with numerous car models.

However, it’s crucial to verify the exact battery type for your specific key fob model. While the CR2032 is prevalent, other batteries like the CR2016, CR2025, and CR1620 are also used in some key fobs.

For comprehensive information on your key fob battery replacement, visit fobbattery.com. We have over 600 videos covering various key fob models and their corresponding batteries.

FAQ

What is the most common key fob battery?

The most common key fob battery is the CR2032. It’s a 3-volt coin battery used in many car brands.

Can I use a different battery if I can’t find the CR2032?

It’s best to use the specific battery recommended for your key fob. Alternatives like the CR2016 or CR2025 may work, but always verify compatibility.

How do I know which battery my key fob needs?

Check your key fob’s manual or visit fobbattery.com for detailed videos on various key fob models and their batteries.

Is it easy to replace a key fob battery?

Yes, replacing a key fob battery is generally straightforward. Follow the instructions in your key fob’s manual or watch our tutorial videos for guidance.

Where can I buy a CR2032 battery?

CR2032 batteries are widely available at electronics stores, supermarkets, and online retailers.

Sale
Amazon Basics 4-Pack CR2032 Lithium Coin Cell Battery, Compatible with AirTag, 3 Volt, Long Lasting Power, Mercury-Free
  • Plastic, Metal
  • Imported
  • IN THE BOX: 4-pack of CR2032 3 volt lithium coin cell batteries; replacement for BR2032, DL2032, and ECR2032

How long does a key fob battery last?

A key fob battery typically lasts 1-2 years, depending on usage. Replace it promptly when you notice reduced functionality.

Do all car brands use the same key fob battery?

No, different car brands use various key fob batteries. The CR2032 is common, but always check your specific model’s requirements.

Can I use a rechargeable battery in my key fob?

It’s not recommended to use rechargeable batteries in key fobs. Use the specified non-rechargeable coin battery for optimal performance.

What should I do if my key fob stops working after replacing the battery?

Ensure the battery is correctly installed and making proper contact. If issues persist, consult your key fob’s manual or seek professional assistance.

Remember, always verify the specific battery type for your key fob model to ensure optimal performance. Visit fobbattery.com for comprehensive guides and videos on key fob battery replacements.

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