Where to Get Car Key Battery Replaced
- Max Kelly
- Jun 5, 2023
- 3 min read
Updated: Jun 20
Is your car key fob giving you trouble? Maybe the buttons need multiple presses to work, or the range isn't what it used to be. As auto locksmiths, we see this all the time - and nine times out of ten, it's just a flat car key battery. Here's where you can get it sorted.
Auto Locksmiths
Most times, Auto Locksmiths are your best option for a car key battery replacement. We stock the right batteries for pretty much every car make and model, we know how to handle your key fob without damaging it, and we won't accidentally mess up your key's programming.
What sets us apart is that we understand car security systems inside and out.
Whether you've got a basic key fob or one of those high-tech proximity keys, we've worked on it before. Plus, we can come to you if your key has completely died and you're stuck somewhere - no need to arrange a tow or find another way to get around.
Car Dealership
Your local dealership might offer key battery replacement, but honestly, it's hit or miss. Some do it as part of their service offering, others will tell you they don't handle "minor repairs" like this.
If they do replace it, you'll pay dealership rates for what's essentially a quick battery swap. You'll also need to book ahead and work around their schedule, which isn't always convenient when you just need your key working again.
That said, they do know your car's systems well and won't void any warranties. But for a simple battery replacement, you're paying premium prices for what any qualified auto locksmith can do faster and cheaper.
DIY Car Key Battery Replacement
Sometimes you want to save a few quid and do it yourself. Battery replacement can be straightforward if you're careful and patient. The batteries themselves are relatively easy to buy, and there are plenty of tutorials online.
But here's where we see people get into trouble: these key fobs are more delicate than they look. We've had customers come to us after attempting DIY repairs, only to find they've cracked the casing, damaged the circuit board, or worse - completely disconnected the key from the car's system. What started as a £5 battery replacement suddenly becomes a £150+ reprogramming job.
If you're determined to try it yourself, take your time and be gentle. Check out our guide on how to change a car key battery for proper techniques that minimize the risk of damage.
How to Find the Right Battery for My Car Key
Getting the wrong battery is a common mistake we see. The easiest way is to search for your car's make, model, and year online along with "key fob battery type." Most manufacturers use standard battery sizes, but there are variations.
Better yet carefully open your key fob and check the existing battery - the type is usually printed on top. Just make sure you note which way it's oriented before removing it.
We've also created a comprehensive guide covering the most common batteries by car manufacturer. Check out our blog on what battery your car key needs - it'll save you time and ensure you get the right one.
As professional auto locksmiths, we're always happy to help with key fob issues. Whether it's a simple battery replacement or something more complex, we've got the tools and expertise to get you back on the road quickly and affordably.
FAQs: Car Key Battery Replacement
How do I know if my car key battery is dying?
Common signs include needing to press buttons multiple times, reduced signal range, or the key fob not responding at all. If it’s intermittent or getting worse, it’s probably time for a new battery.
Can an auto locksmith replace my car key battery?
Absolutely. Auto locksmiths are often the best choice. We carry a wide range of batteries, know how to safely open and reseal fobs, and can come to you if your key has gone completely dead.
Is it cheaper to go to a locksmith than a dealership?
Yes. Dealerships often charge premium prices for something as simple as a battery swap. Locksmiths typically offer faster service at more affordable rates—and without the need to book days in advance.
How long does it take to replace a key fob battery?
A typical battery replacement takes less than 10 minutes. With a locksmith, it's often a quick mobile service too—no need to visit a shop or dealership.
Can I call an auto locksmith if my car key dies completely?
Yes! One of the biggest advantages of using an auto locksmith is that we offer mobile services. If your key fob is completely dead and you’re stranded, we can come to you and get it sorted on the spot.
