Maximize Subaru Key Fob Battery Life: Tips for Choosing the Right Battery

Ever found yourself locked out of your Subaru because of a dead key fob battery? Frustrating, right? Don’t worry, we’ve got your back! In this article, we’ll guide you on choosing the right battery for your Subaru key fob, ensuring you never face this inconvenience again.

Imagine being in a rush, only to realize your key fob isn’t working. Sound familiar? It’s a common scenario that many Subaru owners encounter. But fret not, with the right information on the best battery for your key fob, you can avoid these situations and have peace of mind knowing your key fob is always ready to go.

Why Choosing the Right Battery is Essential

When it comes to your Subaru key fob, selecting the correct battery is crucial. Here’s why:

  • Ensures Reliable Performance: The right battery minimizes the risk of your key fob failing you when you need it the most.
  • Prevents Unforeseen Lockouts: Imagine being locked out of your Subaru due to a dead key fob battery. Choosing the right one can save you from this frustration.
  • Longevity: Opting for the appropriate battery extends the lifespan of your key fob, providing you with consistent functionality.
  • Avoids Unnecessary Replacements: Selecting the right battery type eliminates the need for frequent replacements, saving you time and money.

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Overall, investing in the correct battery for your Subaru key fob is a small yet significant step in ensuring that you have a reliable and hassle-free experience with your vehicle keyless entry system.

How to Identify the Correct Battery Type for Your Subaru Key Fob

When it comes to identifying the correct battery type for your Subaru key fob, it’s essential to be precise. Here are simple steps to help you:

  • Consult your Owner’s Manual: Locate the section that specifies the battery type required for your Subaru key fob. It is often found in the key fob instructions or battery replacement guidelines.
  • Check the Existing Battery: Open your key fob and examine the current battery. Note down the battery type and voltage printed on it. Common types include CR1620, CR1616, or CR2032.
  • Research Online: If you don’t have the manual or want to double-check, you can search online using your Subaru model and key fob information to find the compatible battery type.

Remember, using the correct battery type is crucial to ensure optimal performance and avoid issues with your Subaru key fob.

Top Recommended Battery Brands for Subaru Key Fobs

When it comes to selecting a battery for your Subaru key fob, quality is key. Here are some top recommended brands that are known for their reliability and longevity:

  • Duracell: A trusted name in the battery industry, Duracell provides durable and long-lasting batteries that are ideal for Subaru key fobs.
  • Energizer: Known for their high-performance batteries, Energizer offers a range of options that are compatible with Subaru key fobs.
  • Panasonic: Panasonic batteries are known for their consistent power output, making them a reliable choice for your Subaru key fob.
  • Sony: Sony batteries are designed to deliver steady power, ensuring that your Subaru key fob operates smoothly.

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Remember, opting for reputable battery brands can help maintain the performance of your Subaru key fob and minimize the risk of unexpected issues.

Steps to Replace the Battery in Your Subaru Key Fob

Replacing the battery in your Subaru key fob is a straightforward process. Here’s a simple guide to help you through it:

  • Step 1: Locate the groove or opening on your key fob. You’ll need a small tool like a flathead screwdriver or a coin to pry it open.
  • Step 2: Carefully open the key fob and identify the battery inside. Take note of the battery type and ensure you have a replacement ready.
  • Step 3: Gently remove the old battery from its compartment. Be cautious not to damage the surrounding components.
  • Step 4: Insert the new battery into the same position, making sure it’s securely in place.
  • Step 5: Close the key fob by snapping the two halves together. You should hear a clicking sound to indicate it’s properly sealed.
  • Step 6: Test the key fob to ensure it’s working correctly. If it’s unresponsive, double-check the battery placement.

Remember, proper battery replacement is crucial for the optimal performance of your Subaru key fob.

Extending the Battery Life of Your Subaru Key Fob

Maintaining your Subaru key fob battery is essential for uninterrupted functionality.

  • Store spare batteries in a cool, dry place
    | Avoid: Keeping them in humid or high-temperature environments.
    | Note: Extreme conditions can degrade battery life.
  • Use your key fob regularly
    | Reminder: Inactivity can lead to quicker battery depletion.
    | Tip: Regular use helps maintain battery life.
  • Keep an eye on low battery signals
    | Signs: Dimming lights or delayed responses may indicate low battery levels.
    | Action: Replace the battery promptly to prevent unexpected failures.
  • Opt for high-quality batteries
    | Recommendation: Choose reputable brands for reliable performance.
    | Benefit: Quality batteries tend to have longer lifespans.

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By following these guidelines, you’ll maximize the lifespan of your Subaru key fob battery and minimize the risk of lockouts.


Ensuring your Subaru key fob battery is well-maintained is key to its longevity and optimal performance. By storing spare batteries properly, using your key fob regularly, and being attentive to low battery signals, you can extend the lifespan of your key fob battery. Opt for high-quality batteries from trusted brands to enhance durability. Following these simple steps will help you avoid the inconvenience of a dead key fob battery and keep your Subaru key fob functioning smoothly. Remember, a little care now can save you from potential lockout situations later on.

Frequently Asked Questions

How can I maximize the lifespan of my Subaru key fob battery?

Store spare batteries in a cool, dry place and use the key fob regularly to prevent quick depletion. Watch for low battery signals like dimming lights and opt for high-quality batteries from reputable brands for longer lifespans.

Why is it important to maintain my Subaru key fob battery?

Maintaining your key fob battery ensures uninterrupted functionality, reducing the risk of lockouts and inconvenience. Regular use and proper storage of spare batteries help extend its lifespan.

How do I know when my Subaru key fob battery is low?

Watch for signs like dimming lights or delayed responses when using the key fob. These are indicators that the battery may need replacement soon. Regularly check the battery level to avoid sudden failures.

Battery industry professional with 5+ years of experience. Bachelor of Science in Electrical Engineering from Georgia Tech. Specializes in power systems and renewable energy.

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