Car Key Fob Batteries & why you should replace them every 12 Months

Car Key Fob Batteries & why you should replace them every 12 Months

The Unsung Hero of Your Car Keys:

We often overlook the tiny battery inside our car key fobs, but it plays a vital role in our daily lives. From unlocking doors to opening boots or sliding doors, these little devices offer convenience and security.

To keep your car key fob working optimally, we recommend that you replace the battery every 12 months.

Why Regular Battery Replacement Matters:

Replacing your car key fob battery annually might seem excessive, but it's a simple preventive measure that offers significant benefits.

  • Reliable Performance: A fresh battery ensures your key fob responds quickly and consistently, reducing the risk of being locked out.
  • Prevent Unexpected Failures: Batteries weaken over time. Replacing them proactively prevents the inconvenience of a dead battery at the most inopportune moment.
  • Extend Key Fob Lifespan: Maintaining your car key battery can prevent potential damage to the key fobs internal components caused by a leaking or corroded battery.

Signs of a Weak Key Fob Battery:

Keep an eye out for these telltale signs that your key fob battery is nearing the end of its life.

  • Reduced Range: You need to be closer to your car for the key fob to work.
  • Delayed Response: It takes multiple attempts to unlock doors.
  • Dashboard Warning Light: Some cars display a warning message indicating a low key fob battery.
  • Inconsistent Performance: The key fob works intermittently.

Potential Issues of Ignoring a Weak Battery:

Neglecting to replace a weak key fob battery can lead to several problems.

  • Complete Failure: The key fob may stop working altogether, leaving you stranded.
  • Security Risks: A malfunctioning key fob could compromise your car's security system.
  • Costly Repairs: If the battery leaks and damages the key fob, you may need to replace the entire unit, which can be expensive.

Tips for Easy Battery Replacement:

Replacing your car key fob battery is a straightforward process. Here's how to do it.

  1. Identify the Battery Type: Consult your car's manual or the key fob itself to determine the correct battery type.
  2. Gather Your Tools: You'll typically need a small flathead screwdriver or a similar tool to open the key fob casing.
  3. Open the Key Fob: Carefully pry open the key fob casing, following the manufacturer's instructions.
  4. Remove the Old Battery: Take out the old battery, noting its orientation (+ and -).
  5. Insert the New Battery: Place the new battery in the same orientation as the old one.
  6. Reassemble the Key Fob: Snap the key fob casing back together securely.
  7. Test the Key Fob: Ensure the key fob functions properly after replacing the battery.

Battery Types:

There are two types of battery in a car key fob.

  1. Coin cell battery.
  2. Rechargeable battery.

A standard coin cell battery can be purchased from most local garages or vehicle accessory shops.

A rechargeable battery (charges when the vehicle is running) are usually purchased from companies like ourselves.

A Simple Task for Peace of Mind:

Changing your car key fob battery annually is a simple yet effective way to ensure your car's reliability and your peace of mind. By staying proactive and replacing the battery regularly, you can avoid unexpected failures, security risks, and costly repairs. Make it a part of your annual car maintenance routine!


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