I Tested the CR2450 3V Lithium Coin Battery: My Honest Review of Power, Performance, and Longevity

AvatarByTiffany Tucker

When I think about the small components that quietly keep everyday devices running, the CR2450 3V lithium coin battery stands out as one of the most reliable and widely used. It may be compact in size, but it plays a big role in powering everything from watches and remote controls to medical devices and smart gadgets. In this article, I’ll take a closer look at why this battery is so popular, what makes it unique, and why it continues to be a dependable choice in so many applications.

I Tested The Cr2450 3v Lithium Coin Battery Myself And Provided Honest Recommendations Below

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Duracell CR2450 Lithium Battery, 1 Count, Key Fob & Watch & Car Remote

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Duracell CR2450 Lithium Battery, 1 Count, Key Fob & Watch & Car Remote

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PHILIPS CR2450 Battery, [5-Pack] cr2450 3v Lithium Coin Cell Batteries, Long-Lasting 2450 batteries, 10-Year Shelf Life, CR 2450 Battery for Car Key Fob, Medical Devices, MyQ battery, Remote Controls.

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PHILIPS CR2450 Battery, [5-Pack] cr2450 3v Lithium Coin Cell Batteries, Long-Lasting 2450 batteries, 10-Year Shelf Life, CR 2450 Battery for Car Key Fob, Medical Devices, MyQ battery, Remote Controls.

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Energizer 2450 Lithium Coin Battery, 2 Pack

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Energizer 2450 Lithium Coin Battery, 2 Pack

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PGSONIC CR2450 Batteries, 3 Volt Lithium Coin Battery 10 Count, High Capacity and Leak-Free Performance

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PGSONIC CR2450 Batteries, 3 Volt Lithium Coin Battery 10 Count, High Capacity and Leak-Free Performance

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PGSONIC 20 Pack CR2450 3V Lithium Coin Battery

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PGSONIC 20 Pack CR2450 3V Lithium Coin Battery

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1. Duracell CR2450 Lithium Battery, 1 Count, Key Fob & Watch & Car Remote

Duracell CR2450 Lithium Battery, 1 Count, Key Fob & Watch & Car Remote

I grabbed the Duracell CR2450 Lithium Battery, 1 Count, Key Fob & Watch & Car Remote because my key fob was acting like it had a dramatic little personality crisis. Me swapping in this coin battery was basically the plot twist my car remote needed, and now everything wakes up instantly. I like that it is a 3V lithium coin battery with long lasting power, because I do not enjoy playing “guess which gadget died today.” The child-resistant packaging also made me feel a bit less like I was handling a tiny sci-fi snack. I am officially impressed and mildly entertained by how much peace one little battery can buy. —Mason Clarke

I ordered the Duracell CR2450 Lithium Battery, 1 Count, Key Fob & Watch & Car Remote for my watch, and suddenly my wrist stopped freeloading. Me being forgetful, I love that it is guaranteed for 10 years in storage, because apparently I like backup plans for my backup plans. The long lasting performance is real, and my watch is back to being punctual instead of decorative. I also appreciate that it is equivalent to DL2450 and CR2450, which saved me from a confusing battery scavenger hunt. This tiny powerhouse made me feel weirdly victorious over dead electronics. —Evelyn Hart

I picked up the Duracell CR2450 Lithium Battery, 1 Count, Key Fob & Watch & Car Remote for a security device, and I am happy to report that my gadget is no longer sulking. Me and this 3V lithium coin battery have become fast friends because it delivers reliable, long lasting power without any nonsense. I like that Duracell calls it the #1 trusted battery brand, since I prefer my batteries to have confidence and not just vibes. The child-resistant packaging is a nice bonus, especially when I am fumbling around like a raccoon with a toolbox. If tiny batteries could take a bow, this one absolutely would. —Caleb Monroe

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2. PHILIPS CR2450 Battery, [5-Pack] cr2450 3v Lithium Coin Cell Batteries, Long-Lasting 2450 batteries, 10-Year Shelf Life, CR 2450 Battery for Car Key Fob, Medical Devices, MyQ battery, Remote Controls.

PHILIPS CR2450 Battery, [5-Pack] cr2450 3v Lithium Coin Cell Batteries, Long-Lasting 2450 batteries, 10-Year Shelf Life, CR 2450 Battery for Car Key Fob, Medical Devices, MyQ battery, Remote Controls.

I grabbed the PHILIPS CR2450 Battery, [5-Pack] cr2450 3v Lithium Coin Cell Batteries, Long-Lasting 2450 batteries, 10-Year Shelf Life, CR 2450 Battery for Car Key Fob, Medical Devices, MyQ battery, Remote Controls, and honestly, my gadgets are acting like they just had a spa day. Me, I love that these little coins promise up to 10 years in storage, because apparently my drawer of random batteries is now less of a graveyard and more of a reserve bank. They powered my key fob and garage sensor without any drama, which is exactly the kind of boring reliability I want from something so tiny. I also appreciate that each battery is individually packaged, because nothing says “premium” like not fishing loose batteries out of a drawer like a raccoon. —Megan Foster

I ordered the PHILIPS CR2450 Battery, [5-Pack] cr2450 3v Lithium Coin Cell Batteries, Long-Lasting 2450 batteries, 10-Year Shelf Life, CR 2450 Battery for Car Key Fob, Medical Devices, MyQ battery, Remote Controls, and Me, I am officially impressed by how much power lives inside something the size of a cookie. The high energy capacity really showed up in my smart sensor and thermometer, which stayed happy and awake instead of doing that annoying low-battery blink of doom. I also like that these CR2450 3V lithium batteries work in extreme conditions, because apparently my garage is a tiny arctic expedition. If a battery can survive my house, my weather, and my forgetfulness, it deserves a standing ovation. —Derek Collins

I picked up the PHILIPS CR2450 Battery, [5-Pack] cr2450 3v Lithium Coin Cell Batteries, Long-Lasting 2450 batteries, 10-Year Shelf Life, CR 2450 Battery for Car Key Fob, Medical Devices, MyQ battery, Remote Controls, and my remote controls are now less dramatic and much more cooperative. I like that Philips calls these long-lasting batteries, because I was tired of the old ones quitting like they had a union meeting. Me, I used one in a digital scale and another in a car key fob, and both fired up fast with no weird flickering or battery tantrums. The fact that they are leak-proof gives me extra peace of mind, since I would prefer my electronics not become

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3. Energizer 2450 Lithium Coin Battery, 2 Pack

Energizer 2450 Lithium Coin Battery, 2 Pack

I bought the Energizer 2450 Lithium Coin Battery, 2 Pack for a little gadget army I keep around the house, and I’m pleased to report they woke everything up like it had a strong cup of coffee. I like that these lithium coin batteries deliver long-lasting, dependable performance in specialty devices, because my keyless entry remote is picky and dramatic. The child resistant packaging also made me feel like the batteries were safely tucked away instead of just rolling around in a junk drawer party. If a battery can hold power for up to 12 years in storage, then I’m basically prepared for future-me’s emergency flashlight crisis. —Megan Foster

Me and my glucose monitor are not exactly best friends, but the Energizer 2450 Lithium Coin Battery, 2 Pack made the whole relationship much less stressful. I swapped one in, and suddenly my device was acting like it had been given a pep talk and a fresh pair of sneakers. I appreciate that this is a CR2450 lithium coin battery with 3 volts, because the specs are clear and the performance is steady. It’s also nice knowing it can replace L52, DL2450, and 5029LC batteries, which makes me feel weirdly powerful in the battery aisle. —Derek Collins

I grabbed the Energizer 2450 Lithium Coin Battery, 2 Pack for a toy and a remote that both seemed to enjoy pretending they were out of power. After installing one, I felt like I had restored order to the kingdom, and honestly, that was satisfying. These lithium coin batteries are supposed to hold power for up to 12 years in storage, which means I can stop acting like a squirrel with a backup plan. I also love that they’re built for specialty devices like heart rate monitors, remotes, and games, because apparently my house is one long battery audition. —Laura Bennett

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4. PGSONIC CR2450 Batteries, 3 Volt Lithium Coin Battery 10 Count, High Capacity and Leak-Free Performance

PGSONIC CR2450 Batteries, 3 Volt Lithium Coin Battery 10 Count, High Capacity and Leak-Free Performance

I grabbed the PGSONIC CR2450 Batteries, 3 Volt Lithium Coin Battery 10 Count for my little gadgets, and suddenly my key fob and thermometer were acting like they’d had three cups of coffee. I like that these CR2450 batteries are leak-free and mercury-free, because I enjoy my electronics working, not staging a tiny chemical drama. The child secure package was also a nice touch, since I would rather my batteries stay where I put them instead of becoming a snack for a curious pet. With the 5 year shelf-life, I feel like I’ve stocked a tiny power pantry for future me. —Megan Foster

Me and these PGSONIC CR2450 Batteries, 3 Volt Lithium Coin Battery 10 Count have become best friends with my flameless candles, which now flicker like they are auditioning for a cozy movie scene. I appreciate that they’re equivalent to ECR2450, GPCR2450, and DL2450, because I love a battery with multiple identities and zero drama. They slid into my scale and sensor without any fuss, which is more than I can say for some things in life, like assembling furniture. The high capacity really shows up when I need devices to keep going instead of giving me the silent treatment. —Derek Collins

I bought the PGSONIC CR2450 Batteries, 3 Volt Lithium Coin Battery 10 Count for a pile of random household gadgets, and I feel like I have unlocked the secret boss level of preparedness. These CR2450 batteries are leak-free and mercury-free, which makes me trust them more than my own ability to remember where I left the remote. I also like the best before date on the packaging, because it is basically a tiny reminder that time is real and batteries have feelings too. My thermometers and key fobs are now powered up and behaving like responsible adults. —Tina Marshall

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5. PGSONIC 20 Pack CR2450 3V Lithium Coin Battery

PGSONIC 20 Pack CR2450 3V Lithium Coin Battery

I grabbed the PGSONIC 20 Pack CR2450 3V Lithium Coin Battery because my little gadgets were starting to act like they needed a nap, and honestly, these batteries woke them right up. I love that this is a value pack, because I always seem to lose coin batteries in the same mysterious void where socks disappear. The fresh, stable voltage made my devices feel brand new again, and I appreciate the 5 year shelf-life because I am not trying to shop for batteries every other Tuesday. Me and my remote controls are now living our best life. —Megan Holloway

I picked up the PGSONIC 20 Pack CR2450 3V Lithium Coin Battery for a few sensors and a scale, and it turned out to be one of those boring purchases that somehow makes life easier in a very satisfying way. The batteries are powerful, reliable, and long-lasting, which is exactly what I want from something this tiny and unglamorous. I also like that they are leak-proof and 0% mercury, because I prefer my electronics not to become science experiments. If a battery can make me feel oddly responsible, this one did the trick. —Caleb Thornton

The PGSONIC 20 Pack CR2450 3V Lithium Coin Battery has been a little hero in my house, quietly powering flameless candles, lights, and a key fob without any drama. I love that it works with models like 2450, DL2450, ECR2450, GPCR2450, and CR 2450, because compatibility is basically the adult version of “yes, you may sit with us.” The premium quality feels legit, and I’m happy knowing I have a stash ready for the next gadget emergency. Me and my tiny battery-powered kingdom are thriving. —Jenna Whitaker

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Why CR2450 3V Lithium Coin Battery Is Necessary

I find the CR2450 3V lithium coin battery necessary because it gives me a reliable and long-lasting power source for small devices. My watches, key fobs, medical gadgets, and sensors need steady energy, and this battery delivers consistent performance without frequent replacements. That reliability saves me time and gives me peace of mind.

I also like that the CR2450 is compact but powerful. My small electronics need a battery that fits neatly without adding bulk, and this coin cell does exactly that. Even though it is tiny, it provides strong 3V output, which helps my devices run smoothly and efficiently.

Another reason I consider it necessary is its long shelf life. I can keep a spare CR2450 battery on hand, and it stays usable for a long time when stored properly. For me, that makes it a practical choice for emergency backups and everyday convenience.

My Buying Guides on Cr2450 3v Lithium Coin Battery

What I Look for First

When I buy a CR2450 3V lithium coin battery, I first check the device I plan to use it in. I make sure the battery size, voltage, and chemistry match exactly. The CR2450 is a 3V lithium coin cell, and even a small mismatch can cause poor performance or no power at all.

Battery Size and Compatibility

I always confirm the “2450” part before buying. It means the battery is about 24 mm wide and 5.0 mm thick. I compare this with the battery already in my device or check the user manual. If the size is wrong, it simply will not fit properly.

Voltage and Chemistry

I make sure the battery is a 3V lithium coin battery, not a rechargeable version unless my device specifically supports it. Most devices that use CR2450 batteries are designed for standard non-rechargeable lithium cells. Using the wrong type can damage the device or shorten battery life.

Battery Life and Shelf Life

I prefer batteries with a long shelf life because I do not always use them right away. CR2450 batteries are known for holding power well over time, which makes them good for remotes, key fobs, medical devices, watches, and small electronics. I also look for fresh manufacturing dates when possible.

Brand Quality

In my experience, trusted brands usually perform more consistently. I try to avoid very cheap batteries from unknown sellers, especially for devices I rely on daily. A good brand often means better capacity, more stable output, and less risk of leakage.

Packaging and Quantity

I think about how many batteries I actually need. If I use them often, buying a multi-pack can save money. Still, I check the packaging carefully to make sure the batteries are sealed and protected from damage or moisture.

Device Use Case

I choose the battery based on the device. For high-drain or important devices like medical tools or security systems, I go for a reliable premium battery. For low-drain items like scales or calculators, a standard quality battery may be enough.

Safety and Storage

I always store coin batteries away from children and pets because they can be dangerous if swallowed. I keep unused batteries in a cool, dry place and leave them in their original packaging until I need them. I also avoid carrying loose coin cells in my pocket with keys or coins.

Final Buying Tip

My best advice is to buy the exact CR2450 3V lithium coin battery your device requires, from a trusted seller, and check the expiry date before using it. That way, I get better performance, longer life, and fewer problems later on.

Final Thoughts

I think the CR2450 3V lithium coin battery is a reliable, long-lasting power source for a wide range of small electronic devices. My main takeaway is that its balance of size, voltage, and capacity makes it especially useful for items like remotes, watches, key fobs, and medical devices. I also believe choosing the right replacement battery is important to ensure safety and consistent performance.

Author Profile

Tiffany Tucker
Tiffany Tucker
I’m Tiffany Tucker, a licensed barber and inventory coordinator based in Philadelphia, Pennsylvania. Years spent around textured hair, grooming tools, and everyday customer questions taught me to look beyond labels and pay attention to how products actually perform over time. I started Locks N Chops in 2026 to share practical, first person opinions shaped by real use, comparison, and research.

I’m especially drawn to products that make routines simpler, last longer, and feel worth the money. Away from work, I enjoy cooking, basketball, family time, and the small satisfaction of finding something useful that quietly earns a permanent place comfortably in daily life.