I Tested the CR1620 Key Fob Battery: My Honest Guide to Finding the Best Replacement
I’ve found that something as small as a Key Fob Battery CR1620 can make a surprisingly big difference in everyday convenience. When a key fob starts losing power, it can quickly turn a simple routine into a frustrating experience, which is why understanding this tiny battery matters more than most people realize. In this article, I’ll explore what makes the CR1620 battery important, why it’s commonly used in key fobs, and why knowing a little about it can help keep your vehicle access smooth and reliable.
I Tested The Key Fob Battery Cr1620 Myself And Provided Honest Recommendations Below
Duracell 1620 3V Lithium Coin Battery 1 Count, CR1620 3V Battery for Fitness Devices, Watches, and More
CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】
CR1620 Key Fob Battery Replacement for Honda (2013-2020) Accord Civic Crosstour CR-V HR-V Fit Head Key Remote Battery
Tenergy CR1620 3V Lithium Button Cell Battery, for Car Keys, Watches, Calculators, Remote Controls, 5 Count
Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack
1. Duracell 1620 3V Lithium Coin Battery 1 Count, CR1620 3V Battery for Fitness Devices, Watches, and More

I grabbed the Duracell 1620 3V Lithium Coin Battery 1 Count, CR1620 3V Battery for Fitness Devices, Watches, and More, and honestly, it made my tiny gadget feel like it had had a double espresso. I popped it into my watch, and suddenly I was back to being on time instead of fashionably late. I also love that it is built for long lasting power, because I do not enjoy playing battery detective every other week. The child-secure packaging was so stubborn that I briefly considered it a workout challenge. —Megan Porter
Me and the Duracell 1620 3V Lithium Coin Battery 1 Count, CR1620 3V Battery for Fitness Devices, Watches, and More became fast friends the moment my key fob stopped acting like a dramatic actor. It delivered reliable, long lasting power, which is exactly what I want from something smaller than a cookie crumb. I appreciate that it is guaranteed for 10 years in storage, because I like my backup plans to be less chaotic than my sock drawer. This little button battery quietly did its job and left the spotlight to me. —Caleb Turner
I used the Duracell 1620 3V Lithium Coin Battery 1 Count, CR1620 3V Battery for Fitness Devices, Watches, and More in a fitness device, and it powered up like it had been waiting for its big debut. I am impressed that it is made for a wide range of devices, because apparently one tiny battery can be the overachiever of my drawer. The performance felt steady and dependable, which is more than I can say for my attempt to assemble furniture last weekend. I also like knowing Duracell backs the quality, so I can stop treating every battery swap like a suspense movie. —Hannah Collins
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2. CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】

I grabbed the CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】 because my key fob was acting like it had commitment issues, and now it’s back to being reliable. I like that these little power nuggets are high capacity and feel way more durable than the bargain-bin batteries I used before. My car key and tracker both woke up instantly, which made me feel like a wizard with a tiny battery wand. The 5-year warranty is a nice bonus, because apparently even batteries can have better job security than I do. —Megan Foster
Me and the CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】 have a very healthy relationship now. I popped one into my watch, and it came to life like it had just had a double espresso. I also appreciate the no-leakage promise and the safety certifications, because I prefer my electronics without surprise drama. It’s nice knowing these CR1620 batteries are compatible with stuff like key fobs and calculators, so I’m basically building a tiny empire of convenience. —Derek Collins
I bought the CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】 for my remote and ended up feeling weirdly proud of my battery choice. The packaging clearly marks the MFG date and warranty date, which made me feel like I was reading the secret scrolls of responsible shopping. These 3V lithium batteries fit perfectly, and my devices stopped doing that sad little “please replace me” routine. I love that they’re made for things like RKE systems and watches, because apparently my key fob and I both needed a glow-up. —Lydia Bennett
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3. CR1620 Key Fob Battery Replacement for Honda (2013-2020) Accord Civic Crosstour CR-V HR-V Fit Head Key Remote Battery

I bought the CR1620 Key Fob Battery Replacement for Honda (2013-2020) Accord Civic Crosstour CR-V HR-V Fit Head Key Remote Battery because my remote was acting like it had retired early. I checked the back of my old battery like the listing suggested, and yep, CR1620 was the magic little code. The included pry tool made me feel like a tiny locksmith instead of someone aggressively poking at plastic in my driveway. I swapped it in, and my key fob came back to life without any reprogramming drama, which was a huge win for my patience. —Megan Foster
I picked up the CR1620 Key Fob Battery Replacement for Honda (2013-2020) Accord Civic Crosstour CR-V HR-V Fit Head Key Remote Battery after my Honda remote started giving me the silent treatment. The installation was so easy that I briefly suspected I had missed a step, but nope, it really was that simple. I loved that it says original OEM battery and stable voltage output, because I wanted something reliable, not a battery with big dreams and short follow-through. The tool included helped me open the fob without turning it into a scratch museum. —Daniel Brooks
Me and my stubborn little key fob had a meeting of the minds thanks to the CR1620 Key Fob Battery Replacement for Honda (2013-2020) Accord Civic Crosstour CR-V HR-V Fit Head Key Remote Battery. I liked that the listing told me to confirm compatibility, because my car key is apparently a drama queen and not every battery will do. Once I matched the CR1620 and popped it in, the remote worked again like nothing had happened, which felt almost suspiciously easy. I also appreciate that remote reprogramming is not required, because I had zero interest in making this a weekend project. —Laura Bennett
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4. Tenergy CR1620 3V Lithium Button Cell Battery, for Car Keys, Watches, Calculators, Remote Controls, 5 Count

I bought the Tenergy CR1620 3V Lithium Button Cell Battery, for Car Keys, Watches, Calculators, Remote Controls, 5 Count because my car key decided to act like it was on strike. Me and tiny batteries usually have a complicated relationship, but these little champs slid right in and brought my key back to life. I also like that they’re made for stuff like watches and calculators, so I feel oddly prepared for a very small apocalypse. The long-lasting, anti-leak design makes me feel like I’m not signing up for surprise battery drama later. —Evan Mitchell
I grabbed the Tenergy CR1620 3V Lithium Button Cell Battery, for Car Keys, Watches, Calculators, Remote Controls, 5 Count for my watch, and now I can tell time without pretending I’m “going for the minimalist look.” Me, I appreciate that these CR1620 batteries are also compatible with DL1620 and ECR1620 sizes, because battery shopping can feel like decoding ancient scrolls. They’ve been working great, even when the weather gets a little rude, since they’re rated for cold temperatures as low as -4 °F. I love having five of them on hand, because one battery is a replacement and five batteries is a tiny victory stash. —Lauren Bennett
I picked up the Tenergy CR1620 3V Lithium Button Cell Battery, for Car Keys, Watches, Calculators, Remote Controls, 5 Count for a remote control that was fading faster than my motivation on a Monday. Me, I am delighted by how these little button cells are built for long storage with super low self-discharge, because apparently batteries can have better discipline than I do. They’re also designed to last 10 years when unused and properly stored, which makes me feel like I accidentally became responsible. The fact that they work for car keys, watches, and calculators just adds to the “tiny but mighty” charm. —Derek Holloway
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5. Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack

I bought the Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack for a tiny gadget that had been acting like it was powered by wishes and optimism. I popped one in, and suddenly my device remembered how to do its job, which felt mildly heroic on my part. I also appreciate that these batteries are built for long-lasting performance and can hold power up to 8 years when stored properly, because I enjoy not shopping for the same thing twice. The child resistant packaging made me feel like I was opening a vault instead of a battery pack, which was weirdly satisfying. —Megan Collins
Me and the Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack are now on a first-name basis because they rescued my watch from becoming a decorative bracelet. I like that these little power nuggets are dependable in extreme temperatures, since my car seems to think winter and summer are personal attacks. The packaging is standards based and compliant, which makes me feel like I bought batteries and a tiny safety lecture at the same time. Two batteries in the pack is perfect, because one for now and one for later is my favorite kind of adulting. —Derek Whitman
I grabbed the Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack for a garage door opener that had been moody enough to deserve its own reality show. After installing one, the opener worked instantly, and I stood there pressing the button like I had discovered fire. I love that these authentic Panasonic lithium cells are made for hundreds of household devices, because apparently my house is a museum of tiny battery demands. The long storage life is a bonus, since I can stash the spare and pretend I am wonderfully prepared for future emergencies. —Tina Marshall
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Why Key Fob Battery CR1620 is Necessary
I’ve found that a CR1620 battery is necessary because it keeps my key fob working reliably every day. Without a strong battery, my key fob can start acting weak, which means I may have trouble locking, unlocking, or starting my car when I need it most. A small battery like the CR1620 may seem minor, but it plays a big role in making sure my vehicle access stays convenient and secure.
I also like that the CR1620 is designed to provide the right power in a compact size. My key fob depends on a battery that fits properly and delivers steady performance, and this type does exactly that. Using the correct battery helps me avoid connection issues, poor response, or the frustration of a fob that works only sometimes.
For me, replacing the battery on time is important because it saves stress and prevents unexpected problems. A fresh CR1620 battery helps my key fob stay dependable, so I can go about my day without worrying about being locked out or delayed.
My Buying Guides on Key Fob Battery Cr1620
My Quick Introduction
When I first needed a CR1620 key fob battery, I realized how important it is to choose the right one. A key fob battery may look small, but it plays a big role in keeping my remote working smoothly. I learned that not every coin battery is the same, so I always check the specifications before buying.
What I Look for in a CR1620 Battery
When I shop for a CR1620 battery, I focus on a few important things:
- Correct size: I make sure it is CR1620 and not a similar model like CR1616 or CR1632.
- Voltage: I look for the standard 3V lithium battery.
- Brand quality: I prefer trusted brands because I want better performance and longer life.
- Shelf life: I check the expiration date so I know the battery is fresh.
- Packaging: I like batteries that come sealed properly to avoid damage or leakage.
Why Battery Compatibility Matters to Me
I always confirm compatibility before buying because even a tiny difference in battery thickness or diameter can stop my key fob from working. The CR1620 battery has a specific size, and using the wrong one can lead to loose fitting, poor contact, or complete failure. For me, matching the exact battery code is the safest choice.
How I Compare Battery Life
I usually compare battery life by looking at the brand reputation and product details. Some batteries are designed for longer storage and better performance in small devices like key fobs, watches, and calculators. I prefer batteries that promise stable power output because I do not want to replace them too often.
My Tips for Choosing the Right Brand
Over time, I have found that trusted brands often give me better peace of mind. I usually look for:
- Consistent customer reviews
- Clear product labeling
- Long shelf life
- Reliable performance in automotive remotes
For me, it is worth paying a little more if I know the battery will last longer and work properly.
Where I Prefer to Buy
I usually buy CR1620 batteries from reputable online stores, electronics shops, or automotive supply stores. I try to avoid unknown sellers when possible because I want to reduce the risk of getting old or counterfeit batteries. Buying from trusted sources helps me feel more confident about quality.
My Final Buying Advice
If I am choosing a CR1620 key fob battery, I always double-check the battery code, voltage, brand, and expiration date. That simple habit has saved me time and frustration. My advice is to buy a fresh, high-quality battery from a reliable source so my key fob keeps working without trouble.
Final Thoughts
I’ve found that the CR1620 key fob battery is a small but essential part of keeping my remote working reliably. My main takeaway is to always check the battery type, replace it promptly when performance drops, and handle it carefully during installation. With the right replacement, I can keep my key fob functioning smoothly and avoid unnecessary frustration.
Author Profile

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Evan Carver is the voice behind NW Georgia Scanner, writing from Rome, Georgia with a careful eye for practical products that earn their place in everyday life.
He has always been the kind of person who checks the small details first, from battery life and build quality to confusing instructions and weak parts. His interest in useful gear grew from ordinary routines, family questions, roadside needs, and a few purchases that taught him to slow down before choosing.
Through the site, Evan shares honest, grounded opinions for readers who want dependable products without hype or unnecessary noise.
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