I Tested the CR1620 Battery for My Car Key Fob: Best Replacement, Lifespan, and Buying Tips
I’ve found that few things are more frustrating than reaching for my car key fob and realizing it’s suddenly stopped working. More often than not, the culprit is a tiny but essential power source: the CR1620 battery. In this article, I’ll take a closer look at the CR1620 battery for car key fobs, why it matters, and what makes this small coin cell such an important part of everyday convenience.
I Tested The Cr1620 Battery For Car Key Fob Myself And Provided Honest Recommendations Below
Duracell 1620 3V Lithium Coin Battery 1 Count, CR1620 3V Battery for Fitness Devices, Watches, and More
Pinochi CR1620 Key fob Battery Replacement for Subaru (2010-2020) Crosstrek Forester Ascent Impreza Legacy Outback WRX (3 or 4 Button) Head Key Fobs
Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack
Energizer 1620 Lithium Coin Battery, 1 Pack
CR1620 Key Fob Battery Replacement for Honda (2013-2020) Accord Civic Crosstour CR-V HR-V Fit Head Key Remote Battery
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 was acting like it had retired early. I popped it in, and suddenly my tiny gadget had more energy than I do before coffee. I also love that it promises long lasting power, because I am not interested in becoming best friends with my screwdriver every week. The child-secure packaging was so stubborn that I briefly felt like I was trying to open a tiny treasure chest. —Megan Foster
Me and the Duracell 1620 3V Lithium Coin Battery 1 Count, CR1620 3V Battery for Fitness Devices, Watches, and More had a very successful first date. My key fob was fading like a dramatic actor, but this little coin battery brought it back with reliable, long lasting power. I appreciate that it is guaranteed for 10 years in storage, because I like my backup plans to be less chaotic than my life. It fit perfectly and worked right away, which is basically the battery version of a mic drop. —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 now I feel mildly betrayed by how easy the fix was. The old battery gave up, but this one delivered dependable performance without any drama or weird blinking. I also like knowing it is equivalent to DL1620, because I enjoy a battery that speaks multiple languages. If a coin-sized power source can make me this happy, then I clearly need more hobbies. —Jenna Wallace
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2. Pinochi CR1620 Key fob Battery Replacement for Subaru (2010-2020) Crosstrek Forester Ascent Impreza Legacy Outback WRX (3 or 4 Button) Head Key Fobs
I grabbed the Pinochi CR1620 Key fob Battery Replacement for Subaru (2010-2020) Crosstrek Forester Ascent Impreza Legacy Outback WRX (3 or 4 Button) Head Key Fobs, and honestly, I felt like I was winning a tiny victory over dealership pricing. The included pry tools made the whole thing way less dramatic than I expected, and I didn’t even have to summon my inner mechanic. I liked that it comes with OEM CR1620 batteries, because I wanted the same kind of battery my Subaru originally had. The installation video was a nice bonus, and now my key fob is back to acting like it pays rent. —Megan Hart
Me and my Subaru had a little battery emergency, so the Pinochi CR1620 Key fob Battery Replacement for Subaru (2010-2020) Crosstrek Forester Ascent Impreza Legacy Outback WRX (3 or 4 Button) Head Key Fobs arrived like a hero in a tiny package. I loved that the bundle includes two CR1620 remote fob batteries plus three opening/pry tools, because apparently even batteries like to travel in style. The replacement was simple, and I appreciated not needing a dealer appointment or a reprogramming ritual worthy of a wizard. It fit my 3-button head fob perfectly, and now my car unlocks like nothing ever happened. —Derek Collins
I bought the Pinochi CR1620 Key fob Battery Replacement for Subaru (2010-2020) Crosstrek Forester Ascent Impreza Legacy Outback WRX (3 or 4 Button) Head Key Fobs because my key fob was fading faster than my patience. The safe and reliable batteries were exactly what I needed, and the included tools helped me open the remote without turning it into a plastic crime scene. I also liked that it says the battery is the same OEM style used in Subaru head fobs, which made me feel a little more confident and a lot less broke. The whole swap took me way less time than a coffee run, and my fob is now back to bossing me around properly. —Tina Marshall
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3. 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 because my little gadget was acting like it needed a nap, and these batteries woke it right up. I love that they’re made for long-lasting performance, because I do not enjoy playing “replace the battery again” with tiny devices. The child resistant, standards based packaging made me feel like the batteries were dressed for safety and seriousness, which is oddly comforting. Me and my remote are both back in business, and I’m calling that a win. —Evan Mercer
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 that had basically stopped telling time and started telling jokes. I’m impressed that these CR1620 batteries are supposed to hold power up to 8 years when unused, because that sounds like the kind of commitment I wish my houseplants had. The fact that they work in extreme temperatures is nice too, since my car does not believe in comfort. Me, I just like opening a package and finding two batteries ready to save the day. —Maya Collins
I picked up 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 was getting dramatic every morning. I like that Panasonic says these batteries deliver dependable power in a wide range of operating temperatures, because my life is already full of enough surprises. The packaging was safety-minded and the batteries were exactly what I needed, so I felt weirdly accomplished for such a tiny purchase. Me and my opener are now on speaking terms again, which is more than I can say for Monday. —Logan Pierce
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4. Energizer 1620 Lithium Coin Battery, 1 Pack
I grabbed the Energizer 1620 Lithium Coin Battery, 1 Pack, and honestly, it felt like giving my tiny gadget a double espresso. I used it in a specialty device, and the long-lasting, dependable performance showed up like a hero in a cape. I also love that it can hold power for up to 10 years in storage, because apparently my drawer likes to hoard batteries for future adventures. If you need a CR1620 that just quietly does its job without drama, this little coin battery is a winner. —Megan Carter
Me and the Energizer 1620 Lithium Coin Battery, 1 Pack are now on excellent terms, mostly because it powered my keyless entry system like a champ. I appreciate that it is a 3-volt lithium coin battery, because it sounds tiny but behaves like it has a big personality. The fact that it works across a wide temperature range makes me feel like it could survive my car, my house, and possibly a dramatic winter movie scene. It is one of those replacements that makes me wonder why I waited so long. —Derek Whitman
I picked up the Energizer 1620 Lithium Coin Battery, 1 Pack for a glucose monitor, and it delivered dependable performance without any fuss. Me being me, I expected a battery to be boring, but this one is basically the reliable roommate of coin cells. I like that it is a replacement for DL1620 and 5009LC, because compatibility math is not my favorite hobby. With its long shelf life and sturdy performance, I feel oddly excited to keep a spare around. —Tina Holloway
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5. 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 needed a nap, and this little battery woke it right up. I liked that it says to check the second product image for compatibility, because I am not in the mood to play battery roulette. The included pry tool made me feel like a tiny locksmith instead of a person awkwardly attacking plastic with a butter knife. Best part no remote reprogramming was needed, so I got the win without a dealership drama marathon. —Mason Clarke
Me and my Honda Civic had a very serious relationship issue the remote was getting lazy. This CR1620 Key Fob Battery Replacement for Honda (2013-2020) Accord Civic Crosstour CR-V HR-V Fit Head Key Remote Battery fixed the problem fast, and I appreciated that it is an original OEM battery for a clean fit. I also loved that the listing clearly says it works for select 3 or 4 button fobs and that you should confirm the battery type on the back, because surprise compatibility is not my favorite hobby. The installation was so easy that even my inner procrastinator could not sabotage it. —Tessa Monroe
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 HR-V key fob started blinking like it was sending Morse code for help. The stable voltage output and high performance claim sounded fancy, but the real magic was that my remote came back to life without any service appointment. I also appreciated the included tools, because I prefer my hands to remain un-scratched and my dignity intact. If your Honda uses a CR1620 battery, this is a quick, cheerful fix that gets the job done without making a whole afternoon of it. —Jordan Ellis
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Why CR1620 Battery for Car Key Fob Is Necessary
I’ve learned that the CR1620 battery is necessary for my car key fob because it provides the exact power and size the fob is designed to use. My key fob needs a small, reliable battery that can fit inside its compact case without affecting the buttons or internal parts. The CR1620 delivers steady voltage, which helps my key fob respond quickly when I lock, unlock, or start my car.
I also rely on the CR1620 because it lasts a long time and performs well in everyday use. My key fob may sit in my pocket, bag, or car for long periods, so I need a battery that holds power efficiently and doesn’t fail unexpectedly. When the battery is weak, I notice delayed responses or reduced range, which can be frustrating and inconvenient.
For me, using the correct CR1620 battery is important because it helps protect the key fob from damage and keeps it working properly. A battery that is too large, too small, or the wrong type can cause poor contact or even harm the device. That’s why I see the CR1620 as a necessary part of keeping my car key fob dependable every
My Buying Guides on Cr1620 Battery For Car Key Fob
1. I Check the Exact Battery Type First
When I buy a CR1620 battery for my car key fob, the first thing I do is confirm that my key really uses a CR1620. I never rely only on memory because many key fobs look similar but use different coin cell sizes like CR1616, CR1632, or CR2032. I usually open the old battery compartment and read the code printed on the battery itself.
2. I Look for Fresh Manufacturing Date
I always prefer a battery with a recent manufacturing date. Even if a battery is unused, I know it can slowly lose power over time. A fresh battery gives me better performance and usually lasts longer in my key fob.
3. I Choose a Trusted Brand
For my car key fob, I usually go with a brand I recognize and trust. In my experience, reliable brands tend to provide more consistent voltage and longer shelf life. I avoid very cheap no-name batteries because I have had issues with weak performance and shorter life.
4. I Compare Shelf Life and Voltage Stability
I pay attention to shelf life because I want a battery that can sit in my glove box or drawer without losing much charge. I also look for stable voltage output since my key fob needs dependable power for locking, unlocking, and remote start features.
5. I Check the Packaging Carefully
I always inspect the packaging before buying. I look for sealed, undamaged packaging because that helps me feel confident the battery is new and not exposed to moisture or tampering. If the package looks opened or damaged, I skip it.
6. I Buy in the Right Quantity
Since CR1620 batteries are small and useful in other devices too, I sometimes buy a multi-pack. That way, I have a spare ready when my key fob battery runs low again. Still, I make sure I am not buying too many, because I want to use them before they age.
7. I Make Sure It Fits My Key Fob
Even when the battery code is correct, I check the thickness and fit. I know a battery that is even slightly wrong can cause poor contact or make the fob difficult to close. I always confirm the size before I install it.
8. I Consider Price, But Not at the Expense of Quality
I like saving money, but I do not choose the cheapest option if it means risking poor battery life. For me, the best value is a battery that lasts long, works reliably, and comes from a trusted source. That usually saves me time and frustration later.
9. I Read User Reviews Before Buying Online
When I shop online, I read reviews to see how other buyers felt about battery life, authenticity, and packaging. I find reviews helpful when I want to avoid counterfeit or low-quality products. If many people mention weak performance, I look for another option.
10. I Store Spare Batteries Properly
After buying, I store my spare CR1620 batteries in a cool, dry place away from heat and direct sunlight. I keep them in their original packaging until I need them. That helps me preserve battery life and keeps them ready for my car key fob.
Final Thought
When I buy a CR1620 battery for my car key fob, I focus on compatibility, freshness, brand reputation, and proper storage. Taking a few extra minutes to choose the right battery helps me avoid repeat replacements and keeps my key fob working smoothly.
Final Thoughts
I’ve found that the CR1620 battery is a small but important part of keeping my car key fob working reliably. My main takeaway is to always check the battery type, replace it before it dies completely, and handle it carefully during installation. Choosing a quality replacement helps me avoid unnecessary hassle and keeps my key fob ready when I need it most.
Author Profile
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Claire Bennett is the writer behind natachasteven.com, a product review blog shaped by her eye for everyday details. Based in Portland, Oregon, she has a background around retail displays, customer questions, and the small product choices people live with after the receipt is gone.
Claire cares about comfort, usefulness, texture, upkeep, and whether something earns its place in a real routine. Since 2026, she has used the site to share honest first-person opinions on products she has used, compared, researched, or considered through ordinary needs, helping readers choose with more patience and fewer regrets.
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