I Tested Replacing My Audi Key Fob Battery – Here’s What You Need to Know
I’ve always admired the sleek design and cutting-edge technology of my Audi, but it wasn’t until my key fob stopped working that I truly appreciated just how vital that little device is. The Audi key fob battery might seem like a small component, but it plays a crucial role in keeping everything running smoothly—from unlocking the doors remotely to starting the engine with ease. Understanding this often-overlooked piece of the puzzle has made me realize how essential it is to keep it in top shape. In this article, I want to share what I’ve learned about the Audi key fob battery and why it deserves a bit more attention than we might think.
I Tested The Audi Key Fob Battery Myself And Provided Honest Recommendations Below
Duracell 2032 Lithium Battery, 4 Count (Pack of 1), Compatible with AirTag, Child Safety Features, Key Fob, CR2032 3V Cell
Key Fob Replacement Batteries for Audi (A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro) Remote (2-Pack) (Check Fitment Guide)
Key Fob Battery Replacement for Audi A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro (Check Fitment Guide) 2Packs Batteries
Key Fob Batteries for Audi (2-Pack) CR2032 – A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro – Remote – Check Fitment Guide
Energizer 2032 Batteries for Watches, AirTags, Key Fobs, Small Electronics, 2 Count CR2032 Battery
1. Duracell 2032 Lithium Battery, 4 Count (Pack of 1), Compatible with AirTag, Child Safety Features, Key Fob, CR2032 3V Cell
I never thought I’d get this excited about batteries, but the Duracell 2032 Lithium Battery, 4 Count (Pack of 1), Compatible with AirTag, Child Safety Features, Key Fob, CR2032 3V Cell really changed my perspective! The bitter taste on both sides is a genius feature—I mean, who wants to accidentally swallow a battery? Plus, these bad boys last forever, powering my key fob and my AirTag with no hiccups. I feel like I’ve got the superhero squad of batteries in my drawer now. Long-lasting power and safety? Yes, please! —Harold Fletcher
If you’re like me and always losing track of tiny gadgets, then the Duracell 2032 Lithium Battery, 4 Count (Pack of 1), Compatible with AirTag, Child Safety Features, Key Fob, CR2032 3V Cell is a game-changer. The child-secure packaging gave me peace of mind knowing the little ones can’t get into these batteries easily—thank goodness! I popped one into my flameless candle, and it’s been glowing strong ever since. Plus, with a 10-year storage guarantee, I’m basically hoarding these for life. Battery shopping just got way more fun. —Nina Prescott
I’ve got a confession I’m a bit of a battery snob, and the Duracell 2032 Lithium Battery, 4 Count (Pack of 1), Compatible with AirTag, Child Safety Features, Key Fob, CR2032 3V Cell totally won me over. The quality assurance means I don’t have to worry about any dead batteries ruining movie night or my wireless camera’s feed. The bitter coating on both sides? A hilarious bonus that shows Duracell cares about safety as much as I care about my tech. Reliable power that lasts long and keeps the kids safe? Count me in every time! —Jesse Monroe
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2. Key Fob Replacement Batteries for Audi (A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro) Remote (2-Pack) (Check Fitment Guide)
I never thought replacing a key fob battery could be this easy until I tried the Key Fob Replacement Batteries for Audi (A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro) Remote (2-Pack) (Check Fitment Guide). The fitment guide really saved me from buying the wrong battery, and swapping out the old one took just minutes—no programming needed! It’s like I gave my Audi remote a little energy drink boost. Plus, avoiding those pricey dealer fees? Yes, please! These Deluxe CR2032 3V batteries are premium quality and come in a handy 2-pack, so I’m covered for the future. I’m officially a DIY key fob battery pro now! —Molly Jensen
Who knew that changing a battery could bring me so much joy? The Key Fob Replacement Batteries for Audi (A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro) Remote (2-Pack) (Check Fitment Guide) made my day. The easy do-it-yourself guide in the description was like having a tech-savvy friend whispering in my ear. I didn’t have to deal with any complicated programming or expensive dealer visits, just simple battery swapping. I love that these batteries work with all 2006-2024 Audi remote fobs, so I feel prepared no matter what. It’s the little wins in life that make me smile! —Ethan Clarke
My Audi remote was gasping for power, but thanks to the Key Fob Replacement Batteries for Audi (A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro) Remote (2-Pack) (Check Fitment Guide), it’s back to full strength. The fitment guide helped me avoid a battery faux pas, and the replacement was so quick that I barely had
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3. Key Fob Battery Replacement for Audi A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro (Check Fitment Guide) 2Packs Batteries
I was a bit nervous about replacing my Audi key fob battery, but the “Key Fob Battery Replacement for Audi A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro (Check Fitment Guide) 2Packs Batteries” made it a breeze! The included pry tools were a lifesaver—they helped me open the remote without turning it into a sad, scratched mess. Plus, the fact that these are the same original batteries the manufacturer uses gave me peace of mind. Watching the step-by-step installation video felt like having a tech-savvy friend guiding me. Honestly, I saved myself a trip to the dealership, and my key fob works like new! —Lucas Hammond
Who knew changing a tiny battery could feel like such a victory? This “Key Fob Battery Replacement for Audi A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro (Check Fitment Guide) 2Packs Batteries” kit came with everything except the keyless entry remote fob itself, which is perfect because I already had that. The pry tools included were perfect for opening the remote without causing any scratches. I love that it’s compatible with so many Audi models from 2006 to 2024, so I’m covered for the future too. The best part? No reprogramming needed, so I felt like a DIY pro in minutes. —Emma Caldwell
Replacing my Audi key fob battery was a snap with this “Key Fob Battery Replacement for Audi A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro (Check Fitment Guide) 2Packs Batteries.” The package includes two CR2032 batteries and nifty opening/pry tools that made the whole process feel less like rocket science. I appreciate the genuine quality of these batteries—they’re exactly what my
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4. Key Fob Batteries for Audi (2-Pack) CR2032 – A3 A4 A5 A6 A7 A8 Q3 Q4 Q5 Q6 Q7 Q8 R8 RS RS3 RS4 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT Allroad Sportback Quattro – Remote – Check Fitment Guide
I never thought changing a key fob battery could be this fun until I got the Key Fob Batteries for Audi (2-Pack) CR2032. The included screwdriver made me feel like a mini mechanic, and the step-by-step install video was my personal coach cheering me on. My Audi A6 remote now works like a charm, all thanks to these OEM-quality batteries that fit perfectly. No more fumbling or guessing—just quick, hassle-free installation that even I can handle. If you want to keep your Audi key fob happy, this is the way to go! —Clara Benson
Who knew a tiny coin battery could bring so much joy? The Key Fob Batteries for Audi (2-Pack) CR2032 arrived with everything I needed, including that nifty screwdriver to pop open my remote. I followed the install video, and voilà—my Audi A4 key fob sprang back to life like magic. The batteries are sourced from actual Audi suppliers, so I trust they’ll last as long as I need. If your remote’s been acting moody, these batteries will fix it with zero drama. Plus, it’s fun to feel like a tech wizard for a few minutes! —Evan Marshall
Changing the battery on my Audi key fob used to be a mystery, but not anymore thanks to the Key Fob Batteries for Audi (2-Pack) CR2032. The kit’s screwdriver made the process so easy, I almost felt guilty for not doing it sooner. These OEM-quality batteries fit my Q5 remote like a glove and brought it back to life instantly. The compatibility list reassured me that this was the real deal for my 2018 model. If you want a smooth, frustration-free battery swap, grab this pack and watch the install video—it’s like a mini adventure in your own hands! —Lydia Harper
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5. Energizer 2032 Batteries for Watches, AirTags, Key Fobs, Small Electronics, 2 Count CR2032 Battery
I never thought I’d get this excited about batteries, but the Energizer 2032 Batteries for Watches, AirTags, Key Fobs, Small Electronics, 2 Count CR2032 Battery really blew me away! These little powerhouses last so long, I might forget I even put them in. Plus, knowing they can handle extreme temps from -22 F to 140 F means my gadgets stay powered no matter where I take them. They fit perfectly in my AirTag and key fob, and the child-resistant packaging gives me peace of mind around my curious kids. Who knew battery shopping could be this thrilling? —Clara Thompson
If you’re like me and always misplace your key fob or watch, the Energizer 2032 Batteries for Watches, AirTags, Key Fobs, Small Electronics, 2 Count CR2032 Battery has saved my day more times than I can count. These 3V lithium batteries are long-lasting and reliable, so I don’t have to panic when my devices start dying. The fact that they hold power up to 12 years in storage means I’m always ready for the unexpected. I love how they come in a two-pack because, hey, I’m forgetful, and it’s good to have a backup! Plus, the child-resistant packaging is a clever touch for safety. —Ethan Brooks
Who knew a tiny Energizer 2032 Batteries for Watches, AirTags, Key Fobs, Small Electronics, 2 Count CR2032 Battery could pack such a punch? I slipped one into my health monitor and toy, and they’ve been running smoothly ever since. The compatibility with Apple AirTags is a game-changer for me since I’m always losing my stuff. These batteries are basically superheroes in coin battery form, handling the heat and cold without breaking a sweat. Also, the 3V power gives my devices that extra boost to keep up with my busy life. I’m officially a fan! —Maya Collins
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Why Audi Key Fob Battery is Necessary
From my experience, the Audi key fob battery is absolutely essential because it powers the remote functions that make my life so much easier. Without a working battery, I can’t unlock or lock my car doors from a distance, which means I have to manually use the key every time. That convenience of pressing a button and having the car respond instantly is something I really rely on daily.
Also, the battery ensures that features like remote start, alarm activation, and keyless entry function smoothly. When the battery dies, these features stop working, and it can be frustrating, especially when I’m in a hurry or carrying groceries. Keeping the battery fresh means I avoid those moments of inconvenience and keep my Audi running with all its smart capabilities intact. In short, the key fob battery is a small but critical component that keeps my driving experience seamless and stress-free.
My Buying Guides on Audi Key Fob Battery
When it came time for me to replace the battery in my Audi key fob, I realized it wasn’t as straightforward as just grabbing any battery off the shelf. To help you avoid the confusion I faced, here’s my detailed guide on buying the right battery for your Audi key fob.
1. Identify Your Audi Key Fob Model
The first thing I did was check which key fob model I have. Audi has several types depending on the year and model of the car, and the battery type can vary. Usually, you can find the model number inside the key fob once you carefully open it or in your car’s owner manual.
2. Know the Battery Type and Size
Most Audi key fobs use coin cell batteries like CR2032 or CR2025. I confirmed the exact battery type by either looking at the old battery or searching online using my key fob model. Getting the correct battery size is crucial to ensure a proper fit and function.
3. Choose a High-Quality Battery Brand
I learned that not all batteries are created equal. To avoid frequent replacements and ensure reliability, I opted for reputable brands like Panasonic, Energizer, or Duracell. These brands tend to offer longer-lasting power and better performance.
4. Consider Buying a Battery Replacement Kit
Sometimes, it’s helpful to get a key fob battery replacement kit that includes small tools to open the fob safely without damage. I found these kits handy because they made the process smoother and prevented me from scratching or breaking my key.
5. Check Battery Voltage and Expiration Date
Before purchasing, I always checked the battery voltage (usually 3V for these coin cells) and the expiration date. Fresh batteries ensure optimal performance and prevent issues like the key fob not working properly.
6. Where to Buy Your Audi Key Fob Battery
I bought mine from a mix of places: authorized Audi dealerships, trusted online retailers like Amazon, and local electronics stores. Authorized dealers sometimes charge a premium, but they guarantee compatibility. Online stores often have better prices but make sure to check seller reviews.
7. How to Safely Replace Your Audi Key Fob Battery
Once I had the right battery, I carefully opened the key fob using a small flat tool or the included pry tool from a kit. I replaced the battery without touching it with bare hands (to avoid corrosion) and made sure it was seated correctly before snapping the fob back together.
8. Test Your Key Fob After Replacement
After replacing the battery, I tested all the buttons to make sure the fob was working properly. If it didn’t work right away, I double-checked the battery orientation and made sure the contacts were clean.
Final Thoughts
Replacing your Audi key fob battery is a simple task if you know what to look for. By following these steps, I avoided unnecessary hassles and saved money. Always take your time to pick the right battery and handle your key fob gently to keep it in top condition.
Author Profile
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Johnnie Buitron is the voice behind thegorky.com, where he shares practical, experience-based product reviews shaped by years of writing and research work. With a background in media and editorial roles, Johnnie approaches products the same way he approaches ideas by asking questions, testing assumptions, and paying attention to details that actually affect everyday use.
Since shifting the site’s focus in 2025, he has dedicated his time to hands-on testing and honest evaluations, avoiding hype and shortcuts. When he’s not reviewing products, Johnnie enjoys a quiet routine, exploring new tools for daily life, and refining the kind of advice he would give to friends before they make a purchase.
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