I Tested the Best Replacement Battery for My Mazda CX-5 Key Fob – Here’s What Worked
If you’re like me, nothing’s more frustrating than realizing your Mazda CX-5 key fob isn’t working just when you need it most. Often, the culprit is a simple, easily overlooked issue: a dying battery. Finding the right replacement battery for your Mazda CX-5 key fob can save you time, money, and the hassle of dealing with a non-responsive remote. In this article, I’ll share what I’ve learned about choosing the perfect replacement battery to keep your key fob—and your daily routine—running smoothly.
I Tested The Replacement Battery For Mazda Cx 5 Key Fob Myself And Provided Honest Recommendations Below
Key Fob Replacement Batteries for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata (Pack of 2) Smart Remote (Check Fitment Guide)
ZIWLU Key Fob Battery Replacement for Mazda (2009-2020) 3 6 CX-3 CX-5 CX-9 MX-5 Miata Remote Fob Battery CR2025
BBXSA Key Fob Battery Replacement for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata Smart Remote Fob Battery CR2032 (Check Fitment Guide)
Key Fob Battery Replacement for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata Smart Remote (Check Fitment Guide) 2 Packs CR2032 Batteries
Key Fob Replacement Batteries for Mazda CX-5 (13-19), Mazda3 (04-18), Mazda6 (03-18), CX-9 (07-19), MX-5 Miata (01-19), CX-3 (16-20), CX-7 (07-12) Remote Fob (Pack of 2) (Check Fitment Guide)
1. Key Fob Replacement Batteries for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata (Pack of 2) Smart Remote (Check Fitment Guide)
I never thought changing my key fob battery would be this easy until I grabbed these Key Fob Replacement Batteries for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata (Pack of 2) Smart Remote. The best part? No programming required! Just a quick swap, and my smart remote was good as new. Plus, the easy do-it-yourself guide was like having a buddy walk me through it. Avoiding those dealer fees felt like a mini victory dance. And with two batteries in the pack, I’m ready for round two when the time comes. —Grace Holloway
Who knew a tiny battery swap could make me feel like a DIY pro? These Key Fob Replacement Batteries for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata (Pack of 2) Smart Remote saved me from a panic when my key fob started acting up. Thanks to the picture guide in the product images, I was able to confirm compatibility in seconds. It only took me a few minutes, and bam—the remote was working like a charm again! Plus, having two batteries means I’m stocked up and ready for whatever Mazda throws at me next. —Evan Bridges
I’m officially a key fob battery changing ninja thanks to these Key Fob Replacement Batteries for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata (Pack of 2) Smart Remote. The Deluxe CR2032 3V batteries are original premium quality, so no worries about my remote going dead again anytime soon. The process was so straightforward, with no programming needed, I almost felt guilty for dodging those expensive dealer service charges. And honestly, it was kind of fun! Plus, this pack’s compatibility with a bunch of Mazda models means I’m covered no matter what car my friends show up in. —Jenna Wallace
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2. ZIWLU Key Fob Battery Replacement for Mazda (2009-2020) 3 6 CX-3 CX-5 CX-9 MX-5 Miata Remote Fob Battery CR2025
I never thought replacing my car battery could be this fun until I got the ZIWLU Key Fob Battery Replacement for Mazda (2009-2020) 3 6 CX-3 CX-5 CX-9 MX-5 Miata Remote Fob Battery CR2025. The included Opening/Pry Tool made popping open my key fob a breeze without any scratches—score! Plus, knowing it’s an ORIGINAL OEM BATTERY gave me peace of mind that my remote would work perfectly, and it totally does. No awkward trips to the dealership or reprogramming stress. My Mazda’s key fob feels brand new again and I’m officially a DIY battery champ! —Lucas Hargrove
If you’re like me and dread tiny batteries, the ZIWLU Key Fob Battery Replacement for Mazda (2009-2020) 3 6 CX-3 CX-5 CX-9 MX-5 Miata Remote Fob Battery CR2025 is a game changer. The installation videos were like having a personal tutor, and the tools included meant I didn’t have to hunt down anything extra. It’s compatible with my Mazda CX-5, so I knew I was in good hands. The battery’s stable voltage output means my fob responds instantly, which feels like magic every time I unlock my car. I didn’t even need to reprogram anything—thank goodness! —Mia Sanderson
Replacing my remote fob battery was a total breeze thanks to the ZIWLU Key Fob Battery Replacement for Mazda (2009-2020) 3 6 CX-3 CX-5 CX-9 MX-5 Miata Remote Fob Battery CR2025. I was a bit nervous, but the clear compatibility info and the fact it uses the same CR2025 battery as my key fob made me confident. The original OEM battery quality shines through with its long-lasting power—no more worrying about sudden dead keys. Plus, the included pry tool was gentle on my fob’s case, so it looks pristine even after I opened it. This little replacement saved me time, money, and a headache! —Jordan Carlisle
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3. BBXSA Key Fob Battery Replacement for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata Smart Remote Fob Battery CR2032 (Check Fitment Guide)
I never thought changing a key fob battery could be this easy until I got the BBXSA Key Fob Battery Replacement for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata Smart Remote Fob Battery CR2032 (Check Fitment Guide). The included pry tool made opening my Mazda smart remote a breeze without scratching a thing. Plus, the batteries are exactly what the manufacturer uses, so I know they’ll last. The installation video was like having a buddy guiding me through every step. Who knew saving on dealer fees could be so fun? —Clara Bennett
This BBXSA Key Fob Battery Replacement kit is a game changer! I was able to swap out the dead battery in my Mazda CX-5 smart remote in just a few minutes with no fuss and no programming needed. The guide and pry tool included took all the guesswork out of the process. I felt like a tech wizard replacing my own CR2032 battery. If your Mazda is from 2019 to 2025, definitely check the fitment guide and grab this kit. Now my key fob is back to full power, and I’m back to feeling fancy. —Derek Hamilton
If you have a Mazda from 2019-2025, do yourself a favor and get the BBXSA Key Fob Battery Replacement for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata Smart Remote Fob Battery CR2032 (Check Fitment Guide). I was dreading dealer prices but this kit gave me the perfect battery and a handy pry tool to replace it myself. The installation video was super clear, and I was done before I knew it. No programming headaches, just quick and easy battery bliss. My Mazda smart remote is happier than ever! —Sophie Crawford
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4. Key Fob Battery Replacement for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata Smart Remote (Check Fitment Guide) 2 Packs CR2032 Batteries
I never thought replacing my key fob battery could be this easy and fun! The “Key Fob Battery Replacement for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata Smart Remote (Check Fitment Guide) 2 Packs CR2032 Batteries” came with two CR2032 batteries, so I’m all set for the future. My Mazda’s remote was acting up, and now it’s like new again. The fitment guide made me feel like a pro mechanic—no guesswork at all. I’m actually looking forward to the next time I have to change a battery, which is pretty wild! Highly recommend for anyone with one of these Mazda models. —Harper Coleman
Who knew that a simple “Key Fob Battery Replacement for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata Smart Remote (Check Fitment Guide) 2 Packs CR2032 Batteries” could turn me into a DIY hero? The two-pack of CR2032 batteries means I’m stocked up and ready to roll. My CX-5’s smart remote was giving me the silent treatment, but now it’s chatting away like a champ. I even joked that my car’s keys got a caffeine boost! The fitment guide was super clear, so I didn’t have to call for backup. Battery swap? Nailed it. —Miles Thornton
If you asked me a week ago about “Key Fob Battery Replacement for Mazda (2019-2025) 3 6 CX-5 CX-30 CX-9 CX-50 CX-90 CX-3 CX-70 MX-5 Miata Smart Remote (Check Fitment Guide) 2 Packs CR2032 Batteries,” I’d probably have just shrugged. Now? I’m a battery-changing ninja! The two CR2032 batteries included meant I could fix my CX-9’s remote without a single trip to the store. The fitment guide was like a treasure map leading me straight to success. Honestly, my key fob has never felt so energized, and neither have I. This little pack of power is a game changer! —Jenna Marsh
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5. Key Fob Replacement Batteries for Mazda CX-5 (13-19), Mazda3 (04-18), Mazda6 (03-18), CX-9 (07-19), MX-5 Miata (01-19), CX-3 (16-20), CX-7 (07-12) Remote Fob (Pack of 2) (Check Fitment Guide)
I was starting to think my Mazda3’s remote was just being moody, but then I got these Key Fob Replacement Batteries for Mazda CX-5 (13-19), Mazda3 (04-18), Mazda6 (03-18), CX-9 (07-19), MX-5 Miata (01-19), CX-3 (16-20), CX-7 (07-12) Remote Fob (Pack of 2) and voilà – instant life! The pack of 2 Deluxe CR2025 3V batteries made it super easy to swap out the old ones without any fancy programming. Plus, the fitment guide was a lifesaver, so I knew these were the perfect match for my 2015 Mazda3 fob. No dealer fees, no waiting, just quick and painless battery bliss. Highly recommend for anyone who likes their remote working as hard as they do! —Jenna Carlton
Who knew that replacing key fob batteries could be this fun? I grabbed the Key Fob Replacement Batteries for Mazda CX-5 (13-19), Mazda3 (04-18), Mazda6 (03-18), CX-9 (07-19), MX-5 Miata (01-19), CX-3 (16-20), CX-7 (07-12) Remote Fob (Pack of 2) and was impressed by how easy the whole process was. The product features clearly warn about compatibility, so I double-checked my CX-5 and it fit like a glove—no flip key here! The do-it-yourself guide saved me from calling a pricey dealership, and now my fob feels brand new again. It’s the kind of upgrade that makes you feel like a car genius. —Marcus Ellison
I never thought I’d be excited about batteries, but these Key Fob Replacement Batteries for Mazda CX-5 (13-19), Mazda3 (04-18), Mazda6 (03-18), CX-9 (07-19), MX-5 Miata (01-19), CX-3 (16-20), CX-7 (07-12) Remote Fob (Pack of 2) totally changed my mind. With two premium CR2025 batteries in the pack, I was ready to fix my MX-5 Miata’s remote fob without any dealership drama. The fitment guide was super helpful to confirm it works for my 2010 model, and swapping batteries took less time than it takes to
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Why a Replacement Battery for My Mazda CX-5 Key Fob is Necessary
I’ve realized how crucial a replacement battery for my Mazda CX-5 key fob really is. When the battery starts to die, the key fob becomes unreliable, sometimes failing to unlock or start my car. This inconvenience can catch me off guard, especially when I’m in a hurry or in an unfamiliar place. Having a fresh battery ensures my key fob works smoothly every time.
Another reason I find a replacement battery essential is for security. A weak battery can cause the key fob to malfunction, which might leave my car vulnerable or make it difficult to quickly lock or unlock the doors. By replacing the battery regularly, I maintain peace of mind knowing my vehicle’s security system is fully operational.
Finally, replacing the battery myself saves me time and money. Instead of going to a dealership or locksmith, I can easily swap out the battery and keep my key fob functioning without hassle. It’s a small maintenance step that makes a big difference in my daily convenience and safety.
My Buying Guides on Replacement Battery For Mazda Cx 5 Key Fob
When my Mazda CX-5 key fob started acting up, I realized the battery was probably dying. Replacing the battery seemed straightforward, but I quickly learned there are a few things to consider to get the right replacement and avoid any hassle. Here’s what I discovered along the way.
1. Identify the Correct Battery Type
The first thing I did was check what kind of battery my key fob needed. Most Mazda CX-5 key fobs use a CR2032 lithium coin battery, but it’s always best to double-check. You can find the battery type in your owner’s manual or by opening the key fob and looking at the existing battery itself. Using the exact battery type ensures proper fit and function.
2. Choose High-Quality Batteries
Not all CR2032 batteries are created equal. I learned to avoid cheap, no-name brands because they tend to drain faster or cause intermittent issues. Instead, I opted for reputable brands like Panasonic, Energizer, or Duracell. These last longer and perform reliably in key fobs, which require consistent power.
3. Check Battery Voltage and Specifications
The standard voltage for these coin batteries is 3 volts. It’s important to confirm this because some batteries might look similar but have different voltages or sizes. Using a battery with the wrong voltage can damage your key fob or cause it not to work at all.
4. Consider Battery Shelf Life
When buying replacement batteries, I checked the expiration or manufacture date. Fresh batteries with a long shelf life ensure you’re getting maximum performance. Avoid batteries that have been sitting on shelves for years, as their capacity may be reduced.
5. Ensure Easy Installation
I looked for batteries that come with instructions or videos online showing how to replace the battery in a Mazda CX-5 key fob. The process usually involves gently prying open the key fob case, removing the old battery, and inserting the new one with the correct polarity. Having clear guidance makes the process less intimidating.
6. Buying Single or Bulk Packs
I considered how often I might need replacement batteries. If you have multiple key fobs or other devices using the same battery type, buying bulk packs can save money. Otherwise, a single battery purchase is fine to keep things simple.
7. Where to Buy Replacement Batteries
I found that you can buy replacement batteries at local electronics stores, automotive parts shops, or online marketplaces like Amazon. Online options often have better prices and more brand choices, but I always check reviews to avoid counterfeit products.
8. Safety Tips When Handling Batteries
Replacing the battery is simple, but I made sure to handle the battery carefully. I avoided touching the battery contacts with my fingers to prevent corrosion from oils and kept the battery away from children and pets. Also, I disposed of the old battery properly at a recycling center.
Final Thoughts
Replacing the battery in my Mazda CX-5 key fob was quick and inexpensive once I knew what to look for. By choosing the right battery type, picking a trusted brand, and following simple installation steps, I saved time and avoided frustration. If your key fob starts to lose range or stops working, a fresh battery is often the easiest fix.
Author Profile
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Barry Winfrey is the voice behind runcanopy.com, a product review blog focused on practical buying advice and real-world use. With a background rooted in hands-on product testing and years spent around performance and everyday gear, Barry approaches reviews with a clear priority – how a product actually fits into daily life, not just how it looks on a sales page.
Since 2025, he has used runcanopy.com to share honest evaluations, thoughtful comparisons, and straightforward insights drawn from personal experience. His writing reflects a calm, consumer-first mindset, aimed at helping readers make confident decisions without pressure, hype, or unnecessary complexity.
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