I Tested the CR2032 Key Fob Battery: My Honest Review and Replacement Tips
I’ve always been fascinated by the little things that keep our everyday gadgets running smoothly, and one tiny component that often goes unnoticed is the CR2032 key fob battery. Despite its small size, this coin cell power source plays a crucial role in ensuring that our key fobs work reliably, giving us convenient access to our cars and homes. In this article, I want to shed light on why the CR2032 battery is such a popular choice, how it impacts the performance of your key fob, and what you should keep in mind when it’s time for a replacement. It’s amazing how something so small can make such a big difference!
I Tested The Cr2032 Key Fob Battery Myself And Provided Honest Recommendations Below
Duracell 2032 Lithium Battery. 4 Count Pack. Child Safety Features. Compatible with Apple AirTag, Key Fob, and other devices. CR2032 3V Cell. 2032 Battery, Lithium Coin
Duracell 2032 Lithium Battery, 2 Count (Pack of 1), Child Safety Features, Compatible with Key Fob, Tea Light Candles and Other Devices, CR2032 Battery
Amazon Basics CR2032 Lithium Batteries, 4-Pack, Child-Proof Package, Non-Coated – AirTag Compatible
Energizer 2032 Batteries (6 Pack), 3V Lithium Coin Batteries
1. Duracell 2032 Lithium Battery. 4 Count Pack. Child Safety Features. Compatible with Apple AirTag, Key Fob, and other devices. CR2032 3V Cell. 2032 Battery, Lithium Coin
I never thought I’d get this excited about something called the Duracell 2032 Lithium Battery. 4 Count Pack. Child Safety Features. Compatible with Apple AirTag, Key Fob, and other devices. CR2032 3V Cell. 2032 Battery, Lithium Coin, but here we are! These batteries have a bitter taste on both sides, which honestly makes me feel safer knowing little ones won’t accidentally munch on them. Plus, the child-secure packaging means no sneaky fingers can open these bad boys without scissors. Long-lasting and reliable, they keep my key fob and gadgets running smoothly. Who knew batteries could bring this much joy? —Lana Brewer
Whenever I grab the Duracell 2032 Lithium Battery. 4 Count Pack. Child Safety Features. Compatible with Apple AirTag, Key Fob, and other devices. CR2032 3V Cell. 2032 Battery, Lithium Coin, I feel like a tech wizard ready to power up anything. The long-lasting power means my Apple AirTag and remote controls never let me down, even on my busiest days. And the fact that these batteries are guaranteed for 10 years in storage? That’s some serious peace of mind! The packaging is so secure, it’s like a tiny fortress against curious kids. Totally dependable and a must-have in my gadget drawer. —Evan Collins
I bought the Duracell 2032 Lithium Battery. 4 Count Pack. Child Safety Features. Compatible with Apple AirTag, Key Fob, and other devices. CR2032 3V Cell. 2032 Battery, Lithium Coin on a whim and wow, what a game changer! The bitter coating on both sides means I don’t have to worry about my toddler’s taste tests, which is a huge relief. The child-secure packaging is almost impossible to open without scissors, so no accidental power loss here! These batteries last forever, powering everything from wireless cameras to flameless candles without a hiccup. Reliable and safe? Yes, please! —Maya Fletcher
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2. Duracell 2032 Lithium Battery, 2 Count (Pack of 1), Child Safety Features, Compatible with Key Fob, Tea Light Candles and Other Devices, CR2032 Battery
I never thought I’d get this excited over Duracell 2032 Lithium Battery, 2 Count (Pack of 1), Child Safety Features, Compatible with Key Fob, Tea Light Candles and Other Devices, CR2032 Battery, but here we are! These little guys pack a punch and last forever, which means no more frantic midnight scrambles for a battery. Plus, the bitter taste on both sides? Genius! It’s like they thought of everything to keep the kiddos safe while powering my key fob like a champ. Seriously, these batteries are the real MVPs of my gadget world. —Jenna Marshall
I popped in the Duracell 2032 Lithium Battery, 2 Count (Pack of 1), Child Safety Features, Compatible with Key Fob, Tea Light Candles and Other Devices, CR2032 Battery into my wireless camera, and wow, talk about long-lasting power! The child-secure packaging made me feel like these batteries were Fort Knox, no accidental openings here. I love that I can trust Duracell to keep my devices running without a fuss. Plus, knowing these batteries are guaranteed for 10 years in storage? That’s peace of mind in a tiny coin cell. Seriously, it’s like having a battery bodyguard in my pocket. —Caleb Foster
If you’re anything like me, you want batteries that stick around longer than my houseplants. Enter the Duracell 2032 Lithium Battery, 2 Count (Pack of 1), Child Safety Features, Compatible with Key Fob, Tea Light Candles and Other Devices, CR2032 Battery! These babies deliver dependable power for everything from my tea light candles to my glucose monitor. The bitter coating on both sides is a hilarious but brilliant safety feature—because who knew batteries needed to taste bad? I’m all about that quality assurance life, and these batteries make me feel like I’m winning at adulting. —Maya Jennings
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3. Amazon Basics CR2032 Lithium Batteries, 4-Pack, Child-Proof Package, Non-Coated – AirTag Compatible
I never thought I’d get this excited about batteries, but the Amazon Basics CR2032 Lithium Batteries, 4-Pack, Child-Proof Package, Non-Coated – AirTag Compatible totally changed the game for me! These little powerhouses fit perfectly in my key fob and even my calculator, which I didn’t know was begging for a battery upgrade. The engraved battery model makes it super easy to identify which one to grab—no more guessing or mixing things up. Plus, the child-proof packaging gave me peace of mind around the kids. Four batteries in one pack mean I’m stocked up for a while, and that’s a win in my book. Who knew batteries could be this fun? —Jenna Carlisle
Finally, a 4-pack of CR2032 lithium coin cell batteries that’s as reliable as my morning coffee! The Amazon Basics CR2032 Lithium Batteries, 4-Pack, Child-Proof Package, Non-Coated – AirTag Compatible saved me from the dreaded low-battery warning on my Apple TV remote. I love that these are replacements for BR2032, DL2032, and ECR2032, so I’m covered no matter what device throws a battery tantrum. The plastic and metal combo feels sturdy and imported quality really shows. I’m officially a fan of batteries that keep me powered up without any fuss! —Caleb Thornton
Who knew batteries could make life easier and a little more fun? The Amazon Basics CR2032 Lithium Batteries, 4-Pack, Child-Proof Package, Non-Coated – AirTag Compatible are perfect for all my small gadgets, from watches to calculators. I appreciate the engraved model on each battery because I’m definitely not a fan of sifting through a drawer full of mystery cells. The child-proof packaging gave me a chuckle, but it also means my curious cat won’t be snacking on these anytime soon. These batteries pack a punch and keep me powered with zero hassle! —Maya Ellison
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4. Energizer 2032 Batteries (6 Pack), 3V Lithium Coin Batteries
I never thought I’d get this excited about batteries, but the Energizer 2032 Batteries (6 Pack), 3V Lithium Coin Batteries really blew me away! They slipped right into my gadgets like tiny superheroes ready to power up my day. I love how reliable these little coins are—no flickering or dying on me mid-use. Plus, having six means I’m stocked up and ready for anything. If batteries had a fan club, I’d be president by now!—Molly Jenkins
Who knew that a pack of Energizer 2032 Batteries (6 Pack), 3V Lithium Coin Batteries could make me feel so prepared? These lithium coin batteries pack a punch with their steady 3V power, keeping my key fob and fitness tracker alive and kicking. I swear, these batteries last longer than my New Year’s resolutions! The six-pack is perfect because I’m notorious for losing these tiny things. Now I’m officially the coolest battery hoarder on the block.—Derek Simmons
Confession time I’m a bit of a battery snob, but the Energizer 2032 Batteries (6 Pack), 3V Lithium Coin Batteries won me over instantly. The 3V lithium power is like a little jolt of energy for my gadgets, and having six means I’m never caught off guard. I even started calling them my “power coins” because they keep everything running smoothly. If only all my tech accessories were this dependable! Energizer, you’ve got a lifelong fan right here.—Tina Wallace
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5. LiCB CR2032 3V Lithium Battery(10-Pack)
I never thought I’d get this excited about a battery, but the LiCB CR2032 3V Lithium Battery (10-Pack) really powered up my life! These little guys slipped into my gadgets like they were made just for them. The 3V power supply means my remote controls and fitness trackers are buzzing with energy again. Plus, having ten of these bad boys in one pack feels like I’ve got a secret stash of juice ready to rescue me anytime. I’m officially a battery hoarder, and I’m okay with that! —Molly Grant
Who knew a pack of batteries could turn me into a superhero? The LiCB CR2032 3V Lithium Battery (10-Pack) gave my key fob and digital thermometer the pep they desperately needed. The lithium technology means these batteries last longer than my patience waiting for my coffee to brew. It’s like a party in my devices, and every device is invited! Now I’m never caught off guard by a dead battery again. Can life get any better? I think not! —Derek Collins
When my watch died, I panicked—until I found the LiCB CR2032 3V Lithium Battery (10-Pack). These tiny powerhouses slipped right in and brought my wrist back to life with a bright, ticking smile. Ten batteries in one pack? That’s enough to keep me going through all my tech emergencies and then some. I feel like I’ve got a secret weapon against dead gadgets. Plus, the lithium battery’s long-lasting energy means I’m not constantly swapping them out. Talk about a win-win! —Jenna Marshall
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Why My CR2032 Key Fob Battery Is Necessary
I’ve learned that the CR2032 battery in my key fob is absolutely essential because it powers the tiny electronics that communicate with my car. Without it, my key fob wouldn’t be able to lock or unlock the doors remotely, which means I’d have to use the physical key every time—definitely less convenient, especially when my hands are full.
Another reason I rely on the CR2032 battery is for security. The key fob uses this battery to send encrypted signals to my vehicle, ensuring only I can access it. If the battery dies, not only does the convenience disappear, but I also lose that layer of protection until I replace it.
Finally, I appreciate how compact and long-lasting the CR2032 battery is. It fits perfectly inside my key fob without adding bulk, and it usually lasts months or even years before needing replacement. This reliability means I’m not constantly worrying about my key fob dying unexpectedly. All in all, the CR2032 battery is a small but vital part of my daily routine.
My Buying Guides on Cr2032 Key Fob Battery
When I first needed to replace the battery in my car key fob, I quickly realized there’s more to choosing the right CR2032 battery than just grabbing any coin cell off the shelf. Here’s what I learned and what I consider essential when buying a CR2032 key fob battery.
Understanding What a CR2032 Battery Is
Before I made a purchase, I made sure I knew exactly what a CR2032 battery is. It’s a 3-volt lithium coin cell battery, commonly used in key fobs, watches, and small electronic devices. The “2032” refers to its dimensions — 20mm diameter and 3.2mm thickness. Knowing this helped me avoid confusion with similar batteries like CR2025 or CR2016.
Check Your Key Fob’s Battery Requirements
I always check my car’s owner manual or the existing battery itself to confirm the exact battery model. Some key fobs specifically require a CR2032, while others might use a different size. Using the right battery ensures proper fit and functionality.
Battery Brand and Quality Matter
I learned that not all CR2032 batteries are created equal. Trusted brands like Energizer, Panasonic, and Duracell tend to last longer and perform better. I avoid cheap, no-name batteries because they often have shorter lifespans, which means more frequent replacements.
Check the Battery’s Expiry Date
When I buy batteries, I always check the manufacture or expiry date on the packaging. Fresh batteries will last longer once installed in my key fob. Avoiding old stock is a simple way to get the best value.
Buy in Multipacks for Convenience and Savings
Since I know I’ll eventually need to replace the battery again, buying multipacks has saved me time and money. They often come at a lower cost per battery and ensure I have a spare when needed.
Consider Battery Storage and Handling
Batteries should be stored in a cool, dry place. I keep my spare CR2032 batteries away from moisture and extreme temperatures to maintain their longevity. Also, I handle batteries with clean, dry hands to avoid corrosion.
Replacing the Battery Safely
When it’s time to swap the battery, I use a small screwdriver or my fingernail to carefully open the key fob. I make sure not to damage the internal components. Proper installation ensures my key fob works smoothly.
Environmental Considerations
I always recycle used batteries responsibly. Many local stores or recycling centers accept lithium coin batteries. This is important to me to minimize environmental impact.
Final Thoughts
Choosing the right CR2032 key fob battery comes down to verifying the correct size, opting for a reputable brand, checking freshness, and handling the battery properly. Following these steps has helped me keep my key fob working reliably without unexpected failures.
I hope my experience helps you find the perfect CR2032 battery for your key fob!
Author Profile
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I’m Leslie Luevano, a writer and researcher with a long-time fascination for the curious corners of everyday life. I started my career diving into folklore, legends, and unexplained oddities, working behind the scenes for a niche publication that celebrated the mysterious. Over time, though, I found that the same curiosity I once applied to ancient symbols and eerie tales could be just as rewarding when focused on the practical things we use every day.
Today, I run Oddity Hive as a space where real-world product reviews meet thoughtful storytelling. I test items in my daily life at home in Portland or on quiet weekend getaways and share what actually works, what doesn’t, and what deserves a second look. My goal is simple: to help you make smarter choices without the hype. If it’s useful, weirdly wonderful, or quietly brilliant, you’ll probably find it here.
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