How Long Does a Key Fob Battery Last? | YourMechanic Advice

How Long Does a Key Fob Battery Last?

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In order to get into a modern car, you will usually have to have the key fob that comes with the car. These key fobs can do everything from unlock the doors of the car to remote starting, in some cases. These fobs are powered by a small flat key fob battery. Just like any other battery, eventually the key fob battery will have to be replaced in order to keep the key fob functional. Every time that a driver wants to use their key fob, the battery will have to produce the electricity that is needed to power it. A key fob battery will usually last around three to four years before it will need to be replaced. Not having a fully functional key fob can lead to a lot of frustration and stress. In some cases, it will be impossible for a person to get into their car without a working key fob. When the time comes to get a new battery, you will have to take some time to research exactly what you need. By getting an idea of what is needed, you will be able to find the right battery in no time at all.

Usually, getting the battery out of a key fob can pose a bit of a problem for an inexperienced car owner. Some key fobs will snap apart, while others will have a screw that will need to be taken out. Attempting to do this on your own may cause you to damage the key fob, which will cost you even more money to fix. Many of the key fobs out there are quite expensive due to how high tech they are.

When your key fob battery is bad, here are some of the things that you will start to notice when your key fob battery is going bad:

  • The car will not unlock
  • It is taking a lot more effort to get the key fob to work
  • The buttons on the key fob will only work on occasion

By noticing the signs that your key fob is giving you, it will be easy to replace the battery and restore its functionality. Make sure that a high-quality replacement battery is replaced correctly or just have an experienced mechanic inspect and replace the key fob battery for you.


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Number of Reviews

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David

9 years of experience
138 reviews
David
9 years of experience
Oldsmobile Cutlass Ciera - Power door locks are not working - Altamonte Springs, Florida
David is very knowledge, personable and diligent in his work. It was a great surprise to me to find such a professional like David within a short time from a computer search for a problem with my 1996 Oldsmobile Ciera SL. Thank all of you. Your software is superb.

Joel

20 years of experience
847 reviews
Joel
20 years of experience
Hyundai Genesis - Power door locks are not working - Ponte Vedra Beach, Florida
Joel showed up and did exactly what was needed to be done. After watching Joel work for about 10 minutes it's very obvious he knows his stuff

Andy

3 years of experience
73 reviews
Andy
3 years of experience
Ford Mustang - Power door locks are not working - San Jose, California
Andy went above and beyond to track the issue down with my power door locks not securing. He was very helpful and knowledgeable. I Highly recommend Andy for all your auto needs. Lee

Luis

17 years of experience
238 reviews
Luis
17 years of experience
Nissan Maxima - Power door locks are not working - Parsippany, New Jersey
Honest, trustworthy, and resolved a complex door lock problem with a simple fix I did not even see and saved me $200.00!

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