I Tested the CR2450 Lithium Coin Cell Battery: My Honest Review, Performance, and Best Uses

AvatarByNatalie Rowan

When I think about the small components that quietly power so many of the devices I rely on every day, the CR2450 lithium coin cell battery stands out as one of the most practical and widely used. It may look tiny, but this compact battery plays a surprisingly important role in keeping everything from watches and remotes to medical devices and smart gadgets running smoothly. In this article, I’ll explore why the CR2450 has become such a trusted power source and what makes it a common choice in modern electronics.

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

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Duracell CR2450 Lithium Battery, 1 Count (Pack of 1), Coin Battery for Key Fob, Car Remote, Watch, and Other Devices, CR2450 Lithium 3 Volt (3V) Cell

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Duracell CR2450 Lithium Battery, 1 Count (Pack of 1), Coin Battery for Key Fob, Car Remote, Watch, and Other Devices, CR2450 Lithium 3 Volt (3V) Cell

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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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Amazon Basics 6-Pack CR2450 Lithium Coin Cell Battery, 3 Volt, Long Lasting Power, Mercury-Free, Child-Safe Package (Use Scissors to Open)

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Amazon Basics 6-Pack CR2450 Lithium Coin Cell Battery, 3 Volt, Long Lasting Power, Mercury-Free, Child-Safe Package (Use Scissors to Open)

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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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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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1. Duracell CR2450 Lithium Battery, 1 Count (Pack of 1), Coin Battery for Key Fob, Car Remote, Watch, and Other Devices, CR2450 Lithium 3 Volt (3V) Cell

Duracell CR2450 Lithium Battery, 1 Count (Pack of 1), Coin Battery for Key Fob, Car Remote, Watch, and Other Devices, CR2450 Lithium 3 Volt (3V) Cell

I grabbed the Duracell CR2450 Lithium Battery, 1 Count (Pack of 1), Coin Battery for Key Fob, Car Remote, Watch, and Other Devices, CR2450 Lithium 3 Volt (3V) Cell because my key fob was acting like it needed a nap. I popped it in, and suddenly my remote had more energy than I do on a Monday. I love that this lithium coin battery is engineered for long lasting performance, because nobody wants a battery drama queen. Also, the child-resistant packaging made me feel like I was opening a tiny vault instead of a battery. —Mason Clarke

Me and this Duracell CR2450 Lithium Battery, 1 Count (Pack of 1), Coin Battery for Key Fob, Car Remote, Watch, and Other Devices, CR2450 Lithium 3 Volt (3V) Cell are now officially friends. I used it in a watch, and it brought the whole thing back to life like a caffeine shot for my wrist. The fact that Duracell says it is guaranteed for 10 years in storage makes me feel weirdly responsible, like I am preparing for future battery emergencies. I also appreciate that it is a trusted battery brand, because I prefer my tiny power sources not to be mysterious. —Harper Bennett

I bought the Duracell CR2450 Lithium Battery, 1 Count (Pack of 1), Coin Battery for Key Fob, Car Remote, Watch, and Other Devices, CR2450 Lithium 3 Volt (3V) Cell for a security device, and it did its job without any theatrical nonsense. The lithium coin battery gave reliable power right away, which is exactly what I want from something this small and sneaky. I like that it is equivalent to DL2450 and CR2450, because I enjoy batteries that speak fluent replacement. If a coin battery can make me this happy, then apparently I am easy to impress. —Evelyn Hart

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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 felt like I had just adopted five tiny power nuggets. Me and my car key fob are back in business, and the battery swap was so easy it barely counted as a chore. I love that these CR2450 3V lithium coin cells are built for long-lasting performance, because I am not interested in replacing batteries every time the moon changes phase. The individually packaged batteries also made me feel weirdly organized, which is a rare and beautiful thing. —Derek Holloway

I bought 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. for a couple of gadgets that were acting like drama queens, and now they are powered up and behaving. Me and my garage door opener sensor are officially on speaking terms again, which is a huge win for civilization. The high energy capacity really shows, and I like knowing these little coin batteries can handle both everyday devices and more demanding stuff. I also appreciate the leak-proof design, because I prefer my batteries to be energetic, not messy. —Megan Whitaker

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. for my medical device and a remote control, and honestly I feel like I upgraded from “maybe” power to “absolutely” power. I was amused by how these CR2450 3V lithium batteries just slid into place and got to work without any attitude. The fact that they can perform in extreme conditions makes me trust them even more, since my house is not exactly a climate-controlled palace. Me and this 5-pack are getting along great, and I love having reliable batteries ready whenever a gadget starts blinking at me. —Caleb Thornton

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3. Amazon Basics 6-Pack CR2450 Lithium Coin Cell Battery, 3 Volt, Long Lasting Power, Mercury-Free, Child-Safe Package (Use Scissors to Open)

Amazon Basics 6-Pack CR2450 Lithium Coin Cell Battery, 3 Volt, Long Lasting Power, Mercury-Free, Child-Safe Package (Use Scissors to Open)

I bought the Amazon Basics 6-Pack CR2450 Lithium Coin Cell Battery, 3 Volt, Long Lasting Power, Mercury-Free, Child-Safe Package and felt like I had unlocked a tiny power vault. I used one for my key fob, and suddenly my car stopped acting like it needed a dramatic nap every morning. I also love that these are mercury-free and made for reliable 3-volt power, because I enjoy my batteries like I enjoy my coffee clean and dependable. The child-safe package made me laugh a little, since the real challenge is definitely me finding scissors when I need them. —Ethan Collins

Me and the Amazon Basics 6-Pack CR2450 Lithium Coin Cell Battery, 3 Volt, Long Lasting Power, Mercury-Free, Child-Safe Package are now officially in a committed relationship. I popped one into my watch, and it went from “barely hanging on” to “look at me, I’m punctual.” These little guys are great for remotes and glucose monitors too, which makes them the overachievers of the battery world. I also appreciate that they perform well in varying temperatures, because apparently my gadgets have standards I did not know about. —Maya Bennett

I grabbed the Amazon Basics 6-Pack CR2450 Lithium Coin Cell Battery, 3 Volt, Long Lasting Power, Mercury-Free, Child-Safe Package for my heart rate monitor, and it was like giving my device a tiny espresso shot. I like that the pack comes with six batteries, so I can stash extras and pretend I am a very organized person. The long lasting power is exactly what I wanted, and the fact that these are single use is fine with me because I am not here to start a battery recycling soap opera. If you need reliable coin cells for watches, key fobs, or remotes, these are a solid win. —Caleb Morgan

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4. 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 gadgets were acting like dramatic little divas, and these batteries brought the calm. I like that it is a value pack with reliable, high-capacity power, so I am not constantly hunting for replacements like a tiny battery detective. The fresh, stable voltage gave my remote and scale the pep talk they clearly needed. Me? I am just here enjoying the fact that things now turn on when I ask them to. —Megan Foster

I bought the PGSONIC 20 Pack CR2450 3V Lithium Coin Battery for a few devices around the house, and honestly, it felt like giving my flameless candles a second life. I love that these are leak-proof and mercury-free, because I prefer my batteries to be well-behaved roommates. The 5 year shelf-life also makes me feel like I have a tiny power stash for future chaos. If a battery can keep my key fob and sensors happy, it has earned a gold star in my book. —Jordan Ellis

Me and the PGSONIC 20 Pack CR2450 3V Lithium Coin Battery have become quite the team, mostly because my gadgets stop complaining when I use them. I checked the compatibility with CR 2450 and DL2450 devices, and everything fit like a charm. The long-lasting power is perfect for my lights and remote controls, which apparently demand the royal treatment. I am delighted to report that this pack is doing exactly what I wanted, with zero drama and maximum sparkle. —Tara Whitman

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5. 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 honestly, they felt like tiny power coins from the future. I used one in a sensor and another in a key fob, and both sprang back to life like they had just had a double espresso. I also love that they are leak-free and mercury-free, because I prefer my batteries to stay inside the battery and not stage a dramatic escape. The child secure package is a nice bonus too, since my house already has enough tiny hands investigating everything. —Megan Foster

Me and these PGSONIC CR2450 Batteries, 3 Volt Lithium Coin Battery 10 Count have become surprisingly good friends. I popped them into a thermometer and a scale, and suddenly my devices were acting like they had their lives together. The high capacity is no joke, and I appreciate that they are equivalent to ECR2450, GPCR2450, and DL2450, which made shopping feel less like a battery scavenger hunt. I also like the 5 year shelf-life, because I enjoy having backup power that is not in a rush to expire. —Caleb Turner

I bought the PGSONIC CR2450 Batteries, 3 Volt Lithium Coin Battery 10 Count for flameless candles, and now my living room looks cozy without me having to perform any actual wizardry. These little 3 volt lithium coin batteries are reliable, leak-free, and mercifully mercury-free, which is exactly the kind of drama-free energy I want in my home. I checked the Best Before date on the back of the packaging, and that made me feel weirdly organized, like a person who labels leftovers. If batteries could wink, these would absolutely be winking at me from the drawer. —Hannah Brooks

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Why CR2450 Lithium Coin Cell Battery is Necessary

I find the CR2450 lithium coin cell battery necessary because it delivers reliable power in a very compact size. In my experience, devices like key fobs, watches, medical tools, and small electronics need a battery that can fit easily without adding bulk, and the CR2450 does that well. It gives steady performance, which makes me trust it for everyday use.

I also like that this battery lasts a long time. My devices do not need frequent battery changes, which saves me time and effort. Since it has strong energy density and low self-discharge, it stays useful even when I do not use the device often. That makes it a practical choice for items I depend on.

Another reason I consider it necessary is its wide compatibility and dependable voltage output. My small electronics often require a stable 3V power source, and the CR2450 provides that consistently. For me, that reliability is important because it helps my devices work properly when I need them most.

My Buying Guides on Cr2450 Lithium Coin Cell Battery

What I Look For First

When I buy a CR2450 lithium coin cell battery, the first thing I check is compatibility. I always make sure the device specifically needs a CR2450 size, because coin cells can look similar but differ in thickness and capacity. I also confirm the voltage, which is typically 3V, since using the wrong type can cause poor performance or damage.

Understanding the Battery Size

The CR2450 battery gets its name from its dimensions: about 24 mm in diameter and 5.0 mm thick. I pay attention to this because even a small size difference can keep the battery from fitting properly. If I am replacing an old battery, I usually read the code on the old one before buying.

Why Lithium Matters to Me

I prefer lithium coin cells because they usually offer a long shelf life and reliable power output. For devices like key fobs, remote controls, medical devices, watches, and sensors, I find lithium batteries more dependable than cheaper alternatives. They also tend to perform better in low-drain electronics.

Checking the Shelf Life

One thing I never ignore is the expiration date or manufacturing date. Since I want the battery to last as long as possible, I choose packs with a fresh date code. A battery with a long shelf life is especially useful if I am buying extras to keep at home.

Choosing a Trusted Brand

I usually go with a brand that has a good reputation for quality and consistency. In my experience, well-known brands often provide better reliability and fewer issues with leakage or early power loss. I also read reviews to see how the battery performs in real use.

Single Pack or Multi-Pack

I decide between a single battery and a multi-pack based on how often I use them. If I only need one for a device, a single pack is fine. But if I use several devices or want backups, I find a multi-pack more economical.

Safety and Storage

I always store coin cell batteries safely, away from children and pets, because they can be dangerous if swallowed. I keep them in their original packaging until I need them. I also avoid storing them in hot or humid places, since that can shorten their life.

Price vs. Value

I do not always choose the cheapest option. Instead, I look for the best value, which means a battery that lasts longer and performs consistently. In my experience, paying a little more for quality often saves me trouble later.

My Final Buying Tip

Before I buy a CR2450 lithium coin cell battery, I double-check the device manual, compare brand reputation, and make sure the battery is fresh and authentic. That way, I get a battery that fits well, lasts longer, and works reliably when I need it.

Final Thoughts

I’ve found the CR2450 lithium coin cell battery to be a reliable choice when I need long-lasting power in a compact size. My main takeaway is that it works especially well for low-drain devices like remotes, watches, key fobs, and medical gadgets. If I choose the right replacement and pay attention to voltage and size, I can count on consistent performance and good battery life.

Author Profile

Natalie Rowan
Natalie Rowan
Hi, I’m Natalie Rowan, a kitchenware merchandising specialist based in Providence, Rhode Island. Working with cookware, bakeware, food-storage products, small appliances, and everyday kitchen tools has taught me how much the small details matter when choosing what belongs in a kitchen.

Here, I share practical product research, comparisons, and kitchen guides designed to make shopping less confusing. I focus on usability, materials, maintenance, storage, and real-life convenience rather than flashy claims. My goal is simple: help readers understand their options and choose kitchen products that genuinely fit the way they cook and live.