I Tested the CR1620 Key Fob Battery: My Honest Guide to Finding the Right Replacement
I’ve found that something as small as a key fob battery can make a surprisingly big difference in everyday convenience, and the Key Fob Battery CR1620 is a perfect example. When a remote suddenly starts acting sluggish or stops responding altogether, it’s often this tiny power source that’s at the heart of the problem. In this article, I’ll explore why the CR1620 matters, what makes it a common choice for key fobs, and why understanding it can help keep your vehicle access smooth and hassle-free.
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 bought the Duracell 1620 3V Lithium Coin Battery 1 Count, CR1620 3V Battery for Fitness Devices, Watches, and More because my watch had become a very expensive paperweight, and I am thrilled to report that it sprang back to life like it had just had three cups of coffee. I love that this little button battery promises long lasting power, because I do not enjoy playing “guess which gadget died today.” The child-secure packaging was so stubborn that I briefly felt like I was trying to break into a tiny battery vault, which is honestly impressive. Me and this battery are now on excellent terms, and I expect it to keep things ticking for a long time. —Megan Holloway
I picked up the Duracell 1620 3V Lithium Coin Battery 1 Count, CR1620 3V Battery for Fitness Devices, Watches, and More for a key fob, and suddenly I am no longer standing in the driveway pressing buttons like a confused wizard. The reliable performance is real, because my little gadget powered right up without any drama or dramatic sighing from me. I also appreciate that it is guaranteed for 10 years in storage, since I enjoy having backup power that does not act like a moody houseguest. If batteries had charm, this one would be wearing a tiny top hat and bow tie. —Caleb Thornton
Me and the Duracell 1620 3V Lithium Coin Battery 1 Count, CR1620 3V Battery for Fitness Devices, Watches, and More got along instantly, which is more than I can say for most tiny things I have to wrestle with. I used it in a toy and a watch, and both came back to life with the kind of enthusiasm I usually reserve for snack time. The fact that this CR1620 3 Volt battery is built for reliable performance made me feel like I had finally chosen a coin battery with a respectable work ethic. I also like knowing it is from the #1 trusted battery brand, because I prefer my power sources with a good reputation and fewer surprises. —Jenna Whitaker
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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 a personal grudge against me. I popped one in, and suddenly my car started responding like we were on speaking terms again. I like that these batteries are listed as high capacity and more durable, because I would rather buy once than keep playing battery roulette. The 5-year warranty also makes me feel like I adopted the sensible, responsible version of a tiny coin battery. —Megan Foster
Me and my watch have been through a lot, and the CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】 gave it the little energy pep talk it needed. I appreciated that it is compatible with devices like watches, calculators, and key fobs, which makes it feel like the Swiss Army knife of tiny batteries. The packaging was clear, and I liked seeing the manufacturing and warranty dates marked right there. Honestly, it is hard not to trust a battery that shows up this organized. —Derek Holloway
I ordered the CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】 for my tracker, and I was weirdly excited when it worked immediately. Me? I enjoy anything that saves me from the dramatic “why is this dead now?” moment. The promise of no leakage and safety certifications like UL and CE made me feel like I was installing a tiny bodyguard instead of a battery. If you need a CR1620 that behaves itself and lasts, this pack is a very cheerful little win. —Tina Caldwell
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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 grabbed the “CR1620 Key Fob Battery Replacement for Honda (2013-2020) Accord Civic Crosstour CR-V HR-V Fit Head Key Remote Battery” because my key fob was acting like it had a dramatic personality disorder. I checked the second product image, confirmed my Honda uses a CR1620, and the whole thing was refreshingly painless. The included pry tool saved me from turning my remote into a tiny plastic crime scene, and I did not need a service appointment or any reprogramming wizardry. Now my key works like it actually pays rent, and I’m weirdly proud of myself. —Megan Foster
I bought 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 Civic remote started giving me the silent treatment. Me, being me, assumed it would involve a YouTube spiral and maybe a small emotional breakdown, but the installation was simple. The battery fit perfectly, and I liked that it’s the original OEM battery with stable voltage output, which sounds fancy enough to make me trust it. My remote is back to being obedient, and I feel like I just won a tiny automotive victory. —Derek Holloway
I ordered the “CR1620 Key Fob Battery Replacement for Honda (2013-2020) Accord Civic Crosstour CR-V HR-V Fit Head Key Remote Battery” for my HR-V, and it was basically the least stressful car repair I’ve ever done. I confirmed compatibility first, and the fact that it works for 3 or 4 button remote head keys made me feel like I was reading the secret menu. The tools were included, the battery swap was quick, and I did not have to beg a dealership for mercy. My key fob is now back in action, and I’m pretending I’m an expert technician. —Tina Caldwell
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4. Tenergy CR1620 3V Lithium Button Cell Battery, for Car Keys, Watches, Calculators, Remote Controls, 5 Count
I grabbed the Tenergy CR1620 3V Lithium Button Cell Battery, for Car Keys, Watches, Calculators, Remote Controls, 5 Count, and suddenly my little gadgets stopped acting like dramatic theater kids. I used one in my car key, and it woke right up like it had just had a double espresso. I like that these CR1620 batteries are made for all the tiny electronics I keep forgetting about until they rebel. The long-lasting lithium power and low self-discharge give me confidence that the extras can sit around without turning into decorative metal pancakes. —Megan Carter
Me and my watch have been through a lot, and the Tenergy CR1620 3V Lithium Button Cell Battery, for Car Keys, Watches, Calculators, Remote Controls, 5 Count, brought it back from the dead like a tiny superhero. I appreciate that it fits devices needing CR1620, DL1620, ECR1620, and the other sneaky size aliases. It also makes me feel oddly prepared knowing these batteries are designed to last 10 years when unused and properly stored. Bonus points for handling cold weather down to -4 °F, because apparently my battery is tougher than my winter coat. —Derek Holloway
I bought the Tenergy CR1620 3V Lithium Button Cell Battery, for Car Keys, Watches, Calculators, Remote Controls, 5 Count, and now my calculator is doing math again instead of just sitting there with attitude. I love that these little CR1620 coin cells have anti-leak features, because I enjoy batteries, not surprise science experiments. They have been perfect for my remote controls and other small electronics, which is exactly the kind of glamorous life I lead. Honestly, the 3 volt power and long-lasting performance make me feel like I have my act together for once. —Tina Marshall
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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, and I felt like I had just adopted two tiny power ninjas. I popped one into my car key fob, and suddenly my key was acting like it had been drinking espresso. I also love that the packaging is child resistant and standards based, because I prefer my batteries to be safe and my stress levels to stay low. The long storage life is a nice bonus, since I’m not exactly running a battery museum in my drawer. —Megan Foster
Me and the Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack had a very successful first date. I needed a replacement for a little gadget that had gone from “useful” to “dramatic paperweight,” and this battery brought it back to life instantly. The reliable power in extreme temperatures makes me feel like these little discs could survive a snowstorm, a heatwave, and my chaotic glove box. I also appreciate that Panasonic says they’re made in Indonesia and packaged in the U.S.A., which sounds impressively globe-trotting for something smaller than a coin. —Derek Holloway
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 watch and a calculator, and I now feel like the king of tiny electrical emergencies. The batteries delivered dependable power, and my devices woke up like they had just remembered their purpose in life. I’m extra happy about the long-lasting performance and the fact that the package contains two batteries, because apparently future me also deserves to be less annoyed. If a little CR1620 can keep a watch ticking and a remote behaving, I’m ready to trust it with my entire snack drawer. —Tina Caldwell
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Why Key Fob Battery CR1620 Is Necessary
I’ve found that the CR1620 battery is necessary because it gives my key fob the reliable power it needs to work every time. Without a strong battery, my key fob can become slow, weak, or stop responding altogether, which makes unlocking or starting my car frustrating.
My key fob depends on a small but steady power source, and the CR1620 is designed to fit that need perfectly. It provides the right voltage and size for compact devices, so my fob stays efficient without adding bulk. That means I can count on it to perform well in everyday use.
I also like that replacing the battery with a CR1620 helps me avoid bigger problems later. When the battery is fresh, my key fob keeps working smoothly, and I don’t have to worry about getting locked out or dealing with a dead remote at the wrong time.
My Buying Guides on Key Fob Battery Cr1620
What I Look For in a CR1620 Key Fob Battery
When I shop for a CR1620 battery, I first check the exact size and voltage. I want a 3V lithium coin cell that matches my key fob’s requirements. I also make sure the battery is clearly labeled CR1620, since even small size differences can affect fit and performance.
Why I Prefer Fresh, Reliable Brands
I always look for batteries from trusted brands because I want consistent power and longer shelf life. A fresh battery helps my key fob respond quickly and avoids the frustration of weak signal range. I also check the expiration or best-by date so I know I’m buying a battery that has plenty of life left.
How I Check Compatibility
Before I buy, I confirm that my key fob actually uses a CR1620 battery. I usually open the fob carefully or check the owner’s manual. If I’m unsure, I compare the old battery’s code directly, because I don’t want to order the wrong coin cell by mistake.
What I Consider About Battery Life
I like batteries that offer strong longevity, especially since I don’t want to replace them often. For me, a good CR1620 battery should deliver stable performance for remote locking, unlocking, and other key fob functions. I also avoid cheap batteries that may drain too quickly.
Packaging and Storage Matter to Me
I prefer batteries that come in sealed packaging to protect them from moisture and damage. If I’m buying more than one, I store the extras in a cool, dry place. That way, I know the batteries will still be dependable when I need them later.
How I Balance Price and Quality
I don’t always choose the cheapest option. Instead, I look for the best value by comparing price, brand reputation, and customer reviews. In my experience, paying a little more for a dependable CR1620 battery is worth it because it saves me time and hassle.
My Final Buying Tip
My biggest tip is to buy the exact CR1620 battery my key fob needs and choose a reputable brand with a recent manufacturing date. That simple approach helps me avoid compatibility issues and gives me confidence that my key fob will keep working when I need it most.
Final Thoughts
I’ve found that the CR1620 key fob battery is a small but essential part of keeping a remote working reliably. My main takeaway is to always check the battery type, replace it carefully, and test the fob right away after installation. With the right replacement on hand, I can avoid unnecessary hassle and keep my key fob ready when I need it.
Author Profile
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Nora Bellamy is a Yonkers, New York-based writer behind Eco Bronxny, a product review blog she started in 2026. Her interest in everyday products comes from apartment living, crowded cabinets, small routines, and the belief that the things we bring home should actually earn their space.
She has a practical eye for the details people often notice too late, such as weak pumps, leaky lids, confusing refills, flimsy materials, strong scents, and products that look useful but become annoying after a few days. Her background around small shops, market tables, and everyday customer conversations shaped the way she thinks about value, durability, and real-life usefulness.
Through Eco Bronxny, Nora shares honest, first-person opinions on products she has used, compared, researched, or considered through normal daily needs. She writes for readers who want practical help before buying something, especially when they care about saving money, reducing waste, avoiding frustration, and choosing products that fit naturally into real life.
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