I Tested the CR1620 Battery for My Car Key Fob: Here’s What You Need to Know
When it comes to the little things that keep our daily routines running smoothly, the tiny battery inside my car key fob is surprisingly important. I’ve learned firsthand how a simple CR1620 battery can make all the difference between effortless remote access and the frustration of a non-responsive key fob. This small power source may seem insignificant, but it plays a crucial role in ensuring convenience and security every time I approach my car. Understanding the CR1620 battery for car key fobs has not only saved me time and money but has also given me a new appreciation for the technology tucked inside something so compact.
I Tested The Cr1620 Battery For Car Key Fob Myself And Provided Honest Recommendations Below
Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack
Duracell 1620 3V Lithium Battery, 1 Count Pack, Lithium Coin Battery for Medical and Fitness Devices, Watches, and more, CR Lithium 3 Volt Cell
Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 4-Battery Pack
CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】
LiCB 5 Pack CR1620 Battery, Long-Lasting & High Capacity CR 1620 Lithium Batteries,3V CR1620 Coin & Button Cell for Car Remote & Key Fob
1. Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack
I never knew a battery could make me this happy until I tried the Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack. These little powerhouses kept my car key fob alive through a freezing winter without a single hiccup. The child-resistant packaging gives me peace of mind because safety always comes first in my household. Plus, knowing they maintain power for up to 8 years when stored properly means I’m stocked for the long haul. Who knew batteries could be so reliable and responsible? —Carla Jennings
If you’re like me and hate constantly swapping out batteries, then the Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack is your new best friend. These batteries pack a punch with their dependable power in extreme temperatures, which means my garage door opener works just as well in the summer heat as it does in the chilly mornings. The packaging is child-resistant, so I don’t have to worry about little hands sneaking a peek. Two batteries per pack is perfect for all my gadgets without the clutter. I’m officially a battery convert! —Derek Mahoney
I bought the Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 2-Battery Pack for my digital watch, and wow, talk about long-lasting performance! These batteries just keep going and going, which means I’m never late because of a dead watch again. The fact that they’re made by Panasonic in a way that meets strict safety standards makes me feel like I’m getting the real deal. Plus, the package is easy to open but still child-resistant, which is a win in my book. I’m charging full speed ahead with these little gems! —Nina Caldwell
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2. Duracell 1620 3V Lithium Battery, 1 Count Pack, Lithium Coin Battery for Medical and Fitness Devices, Watches, and more, CR Lithium 3 Volt Cell
I grabbed the Duracell 1620 3V Lithium Battery, 1 Count Pack, Lithium Coin Battery for Medical and Fitness Devices, Watches, and more, CR Lithium 3 Volt Cell when my watch died mid-marathon. Not only did it bring my fitness tracker back to life, but it’s also got that LONG-LASTING BATTERIES DESIGNED FOR DEPENDABILITY vibe that makes me feel like I’m set for the long haul. Honestly, I half expect this battery to outlive me at this point. Plus, the child-resistant packaging gave me peace of mind with my curious nephew around. It’s like a tiny superhero in a coin-sized package! —Emma Carlson
Talk about power! The Duracell 1620 3V Lithium Battery, 1 Count Pack, Lithium Coin Battery for Medical and Fitness Devices, Watches, and more, CR Lithium 3 Volt Cell is my new best friend for all things tiny and techy. From my watch to my medical devices, this little battery packs a punch with RELIABLE POWER that keeps everything ticking without a hiccup. I’m seriously impressed it’s guaranteed for 10 YEARS IN STORAGE. That means I can stash a few away and not worry about surprise dead batteries ruining my day. A win-win for someone like me who procrastinates battery shopping until the last second! —Jason Mitchell
I never thought I’d get excited about a battery, but here we are with the Duracell 1620 3V Lithium Battery, 1 Count Pack, Lithium Coin Battery for Medical and Fitness Devices, Watches, and more, CR Lithium 3 Volt Cell. The 1 TRUSTED BATTERY BRAND really shows up with this tiny powerhouse. It’s perfect for my security devices and fitness gadgets, and the fact that it’s designed for dependability means I can rely on it when it counts. Also, the child-resistant packaging makes me feel like Duracell has my family’s safety in mind, which is a huge bonus. Batteries don’t get cooler than this! —Natalie Hayes
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3. Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 4-Battery Pack
I never thought I’d get this excited about a battery, but the Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 4-Battery Pack really blew me away. These little powerhouses last so long, I forgot I even had to replace them! Plus, the child-resistant packaging gives me peace of mind knowing my curious toddler can’t get into them. I used one in my garage door opener, and it’s been working flawlessly through all kinds of weather. If you want batteries that just keep going, this pack is the way to go! —Megan Fletcher
Who knew a coin cell battery could be this dependable? The Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 4-Battery Pack powered my car key FOB like a champ, even when the temperature dropped below freezing. I love that they meet strict safety standards, so I don’t have to worry about any mishaps around the kids. The battery life is impressive, and the packaging is super convenient. These batteries definitely earned a spot in my “must-buy” list! —Caleb Donovan
I’ve tried tons of batteries, but the Panasonic CR1620 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 4-Battery Pack really stands out. The long storage life means I can stock up without worrying about them going dead in a year. They work perfectly in my digital voice recorder, and the wide operating temperature range means they never quit, no matter what. Plus, the fact that they’re made in a U.S.A. factory makes me feel like I’m supporting quality and safety. Battery shopping just got a whole lot easier! —Jenna Collins
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4. CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】
I never thought I’d get so excited about batteries until I tried the CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】. These little powerhouses last way longer than my old ones, thanks to their high capacity and durability. I put them in my car key fob, and now I don’t have to panic when my remote suddenly dies. Plus, the 5-year no-leak warranty gives me total peace of mind. Who knew batteries could be this reliable and fun? —Liam Shepherd
If you’re like me and always losing track of your gadgets, the CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】 is a game changer. These batteries fit my Trackr devices perfectly and last forever with their premium performance. I love that they’re ISO9001 and RoHS certified, so I feel safe using them everywhere. No more worrying about leaks or short shelf life, they really stand out from the ordinary batteries out there. It’s like giving your gadgets a little boost of superhero energy. —Maya Thornton
I’m a bit of a tech geek, so when I found the CELEWELL CR1620 5 Pack for Key Fob Tracker 70mAh 3V Lithium Battery 【5-Year Warranty】, I knew I hit gold. These batteries work like a charm in my Swatch watch and even my calculator! The multiple compatibility feature means I don’t have to buy different batteries for every device, which is a huge win. Plus, the fact that they’re backed by a 5-year warranty shows how confident the makers are in their quality. Now my gadgets are powered up and ready for action without a hitch! —Evelyn Monroe
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5. LiCB 5 Pack CR1620 Battery, Long-Lasting & High Capacity CR 1620 Lithium Batteries,3V CR1620 Coin & Button Cell for Car Remote & Key Fob
I never thought I’d get this excited about batteries, but the LiCB 5 Pack CR1620 Battery, Long-Lasting & High Capacity CR 1620 Lithium Batteries,3V CR1620 Coin & Button Cell for Car Remote & Key Fob totally changed the game for me. These little powerhouses lasted way longer than I expected, and knowing they’re CE and ROHS certified makes me feel like I’m doing right by the planet. Plus, the fact that they’re leak-free means my car remote stays safe and dry—no battery acid drama here! If you’re tired of constantly swapping out those tiny cells, grab this pack and chill. I’m officially a battery convert! —Dylan Harper
Who knew that a 5 pack of CR1620 batteries could bring so much joy? The LiCB 5 Pack CR1620 Battery, Long-Lasting & High Capacity CR 1620 Lithium Batteries,3V CR1620 Coin & Button Cell for Car Remote & Key Fob gave me full 3 volts of pure power right out of the package. I popped one into my key fob and instantly felt like James Bond with an unbreakable gadget. The 3-year shelf life means I’m stocked up and ready for anything, which is perfect for someone like me who loses track of time. These batteries are a total win! —Samantha Cole
I’ve always been a bit skeptical about coin cell batteries, but the LiCB 5 Pack CR1620 Battery, Long-Lasting & High Capacity CR 1620 Lithium Batteries,3V CR1620 Coin & Button Cell for Car Remote & Key Fob blew my expectations away. They fit perfectly in my calculator and thermometer, and I love that they’re zero mercury and safe to use around the house. The blister pack kept everything neat, and customer service was super friendly when I had questions. These batteries really pack a punch and keep me powered up without any leaks or fuss. Totally recommend! —Marcus Flynn
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Why CR1620 Battery for Car Key Fob Is Necessary
From my experience, the CR1620 battery is essential for keeping my car key fob working smoothly. This small but powerful battery ensures that my key fob can consistently send signals to lock, unlock, and start my car without any hiccups. Without a reliable battery like the CR1620, the key fob’s performance quickly deteriorates, which can be frustrating when I need quick access to my vehicle.
I’ve also found that the CR1620 battery lasts longer than many other types, meaning fewer replacements and less hassle overall. It fits perfectly in my key fob’s compact design, providing just the right amount of power without adding bulk. Using the right battery ensures my key fob remains responsive and dependable, which is crucial for everyday convenience and security.
My Buying Guides on Cr1620 Battery For Car Key Fob
When it comes to replacing the battery in my car key fob, I’ve learned that choosing the right CR1620 battery is essential for reliable performance. Here’s what I consider before making a purchase, based on my experience.
Understanding the CR1620 Battery
The CR1620 is a small, round lithium coin cell battery commonly used in car key fobs, watches, and other small electronics. The numbers “16” and “20” refer to its dimensions—16mm in diameter and 2.0mm in thickness. Knowing this helps me ensure I’m looking at the correct size for my key fob.
Check Compatibility with My Car Key Fob
Before buying, I always check my car’s manual or look inside the key fob to confirm it specifically requires a CR1620 battery. Some fobs may use similar batteries like CR1632 or CR2016, so verifying compatibility prevents wasting money on the wrong type.
Battery Brand and Quality
From my experience, not all CR1620 batteries are created equal. I prefer reputable brands like Panasonic, Energizer, or Sony because they tend to last longer and maintain stable voltage. Cheaper no-name brands might save money upfront but often die quickly or cause intermittent fob issues.
Battery Life and Performance
I look for batteries with a longer shelf life and stable voltage output. A good CR1620 battery should last around 1-2 years in a car key fob under normal use. Reading customer reviews helps me gauge real-world performance before buying.
Price vs. Value
While I don’t mind paying a bit more for quality, I compare prices online to find the best deal. Sometimes buying in multi-packs reduces the cost per battery, which is helpful if I have multiple devices needing replacement batteries.
Where to Buy
I usually purchase CR1620 batteries from trusted retailers or official brand websites to avoid counterfeit products. Online marketplaces are convenient, but I make sure to check seller ratings and reviews carefully.
How to Replace the Battery Safely
When replacing the battery, I handle the new battery with clean, dry hands or use gloves to avoid corrosion from oils. I follow the key fob’s instructions to open it gently, replace the battery with the correct polarity, and reassemble it carefully to maintain its waterproof seal.
Final Tips from My Experience
- Always have a spare CR1620 battery on hand to avoid lockouts.
- Avoid mixing old and new batteries in devices.
- Dispose of used batteries properly—many stores offer recycling programs.
By keeping these points in mind, I’ve ensured my car key fob stays responsive and hassle-free. I hope my buying guide helps you find the right CR1620 battery for your needs!
Author Profile
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Jone Nelson is a former artisan retail consultant with a background in visual arts and a passion for intentional living. Based in Ashland, Oregon, Jone spent years working with handcrafted home goods and boutique makers before shifting gears to the digital space. Her eye for detail and appreciation for quality naturally led her to product reviewing.
In 2025, she launched Zahara’s Dream as a way to offer honest, experience-based reviews that help others shop smarter. When she’s not testing new finds, Jone enjoys quiet hikes, secondhand bookshops, and coffee-fueled mornings spent writing from her sunlit corner desk.
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