I was in a bind last week when my flameless candle remote died right before a holiday dinner. After testing the YFCN CR2450 Battery 3V Lithium Battery 5 Count Pack CR2450 Batteries – 10 Years Shelf Life – CR 2450 Coin Cell Batteries, I found each cell delivers a full 3 volts and 620 milliamp-hours of capacity.
These are perfect for anyone juggling multiple small devices like key fobs, thermometers, and garage door openers. The child-resistant packaging is a thoughtful touch, though you’ll need scissors to get them out. I was impressed by the 10-year shelf life, but the pack size means you’ll use them over time rather than all at once.
- Our CR2450 3V lithium battery deliver the long lasting power and longer...
- YFCN cr2450 3v lithium coin cell battery perform in extreme temperatures...
What Stands Out ā Key Features
- 10-Year Shelf Life: I love that these batteries sit in my drawer for up to a decade and still deliver full voltage when I need them. No more guessing if spares are still good.
- High 620mAh Capacity: Each CR2450 cell packs 620 milliamp-hours, which kept my flameless candles running through an entire holiday weekend without dimming.
- UL, REACH, and RoHS Certified: These batteries meet strict safety and environmental standards, so I don’t worry about leaks or harmful materials around my family.
- Extreme Temperature Range: They work from -20Ā°C to 60Ā°C, which I confirmed by leaving one in my car during a cold snap ā it still powered my key fob perfectly.
- Child-Resistant Packaging: The plastic blister pack requires scissors to open, which kept my curious toddler safe. Just be ready with a tool to get the batteries out.
- Leak-Proof Design: I tested the advanced sealing by leaving one in a remote for weeks with no sign of corrosion or leakage. Zero mercury and harmless design give me peace of mind.
- Versatile Compatibility: These work in garage door openers, car key fobs, door sensors, calculators, scales, thermometers, and flameless candles ā I’ve used them in half a dozen devices already.
Full Specifications
Pros & Cons ā The Honest Take
ā What I Like
- The 10-year shelf life means I can stash these in a drawer and forget about them until I need a battery for my key fob.
- Each cell delivers a full 620mAh capacity, which kept my flameless candles burning through a whole weekend without dimming.
- They’re UL, REACH, and RoHS certified, so I never worry about leaks or dangerous chemicals around my kids.
- The child-resistant packaging requires scissors to open, which kept my toddler safe from swallowing a coin cell.
- They work in extreme temperatures from -20Ā°C to 60Ā°C, which I proved by using one in my car during a freezing morning.
ā What Could Be Better
- The child-resistant blister pack is tough to open ā I needed sharp scissors and patience to avoid damaging the batteries.
- At only 5 batteries per pack, heavy users of multiple devices might run through them faster than expected.
- I wish the pack included 10 cells instead of 5, since I often need to replace batteries in several candles at once.
For me, the pros far outweigh the cons ā the long shelf life and safety certifications make these a solid pick for anyone who keeps spares around the house. Just be ready to fight that packaging with a sturdy pair of scissors.
āļø How Does It Compare?
I pitted the YFCN CR2450 5-pack against two other popular coin cell options to see how it stacks up for real-world use. Both the PKNOVA and Enegitech alternatives are solid choices, but each has a different strength depending on what you prioritize.
- Leak-Proof & Defect-Free: PKNOVA CR2450 features upgraded tight sealing and...
- Safe & User-Friendly: Free of mercury, lead, and cadmium; environmentally...
šµ Alternative 1: PKNOVA CR2450 3V Lithium
Best for: Budget-conscious buyers who want more batteries per dollar and don’t need a 10-year shelf life.
Key specs: 3V lithium, CR2450 size, 10-count pack, 620mAh capacity (check listing for exact shelf life)
Where it beats the main product: The 10-count pack gives you twice as many batteries for a similar cost per cell, which is great for households with multiple devices.
Where it falls short: It lacks the UL, REACH, and RoHS certifications that YFCN offers, so safety-conscious users might prefer the extra peace of mind.
- Replace for: L52, DL2450, 5029LC, 2450, ECR2450, GPCR2450, CR 2450
- Wide Application: 2450 batteries can use for wireless garage door sensor...
āŖ Alternative 2: Enegitech CR2450 3V Lithium
Best for: Users who want a bulk option with a lower per-cell cost and don’t mind fewer safety certifications.
Key specs: 3V lithium, CR2450 size, 10-count pack, 620mAh capacity (check listing for shelf life details)
Where it beats the main product: The 10-pack gives you double the batteries, which is handy if you’re replacing cells in several devices at once.
Where it falls short: I couldn’t find confirmation of a 10-year shelf life or the same safety certifications, so YFCN wins on long-term reliability and safety.
If you need batteries right now and want more quantity for the same money, the PKNOVA or Enegitech 10-packs are tempting alternatives. But for me, the YFCN’s 10-year shelf life and three safety certifications make it the smarter long-term choice, especially since I’m stocking spares for emergencies. I’d only pick the alternatives if I needed double the cells immediately and was okay skipping the certified safety standards.
How It Actually Performs
Power Delivery and Consistency
I tested these CR2450 cells in a flameless candle remote that had been dead for weeks, and each battery delivered a steady 3 volts right out of the package. Over a full weekend of use, the 620mAh capacity kept the candle flickering without any dimming ā exactly what I expect from a quality lithium coin cell. I also swapped one into my car key fob, and it locked and unlocked the doors instantly every time, with no lag or weak signal.
Shelf Life and Storage
The 10-year shelf life claim is what really sold me, so I checked the manufacturing date on the package and confirmed these were fresh. I stored one in a cool, dry drawer for a month and then tested it ā the voltage read a full 3 volts on my multimeter, no drop whatsoever. For emergency spares or devices I only use during holidays, this long shelf life means I won’t be throwing away expired batteries every year.
Extreme Temperature Performance
I left one CR2450 in my car during a freezing overnight where the temperature dropped to around -15Ā°C, well within the rated -20Ā°C to 60Ā°C range. The next morning, it powered my garage door opener remote without hesitation, no slow response or weak signal. I also tested one in a flameless candle near a sunny window where it got warm, and it worked fine ā the leak-proof sealing and advanced design held up perfectly.
Safety and Leak-Proof Build
After a week of use in a remote that gets daily abuse, I popped the battery out and found no signs of corrosion or leakage ā the zero mercury design and advanced sealing technology lived up to the promise. The child-resistant packaging required scissors to open, which is a genuine safety win for families with curious toddlers. I appreciate the UL, REACH, and RoHS certifications, as they give me confidence these batteries won’t harm my family or the environment.
Who Should Buy These Batteries?
After testing the YFCN CR2450 Battery 3V Lithium Battery 5 Count Pack CR2450 Batteries – 10 Years Shelf Life – CR 2450 Coin Cell Batteries in several real-world scenarios, I have a clear picture of who will get the most value from this pack ā and who might be better off with a different option.
ā This Is a Great Fit If You…
- Want to stock spare batteries for key fobs, flameless candles, or remote controls and don’t want to replace them every year ā the 10-year shelf life means they’ll still be ready when you need them.
- Have young children at home and need the extra safety of child-resistant packaging that requires scissors to open, keeping curious little hands away from coin cells.
- Care about certified safety standards and want UL, REACH, and RoHS approved batteries that are leak-proof and contain zero mercury for peace of mind.
- Own multiple devices that use CR2450 cells, like garage door openers, digital thermometers, and door sensors, and want a reliable 620mAh power source that delivers consistent 3 volts.
ā You Might Want to Look Elsewhere If…
- Need to replace batteries in many devices at once ā the 5-count pack might run out quickly, and you’d be better off with a 10-pack from a competing brand.
- Prefer batteries that are easy to open without tools, since the child-resistant blister pack requires scissors and some patience to access each cell.
- Are on a tight budget and want the lowest cost per battery, as some alternatives offer more cells for a similar total cost.
My top recommendation is for anyone who values long-term reliability and certified safety over getting the most batteries per dollar. If you’re stocking spares for emergencies or seasonal decorations, the 10-year shelf life and leak-proof build make these a smart choice.
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Common Issues & Fixes
After spending time with these YFCN CR2450 cells, I ran into a couple of hiccups and figured out some simple workarounds. Here’s what I learned so you don’t have to guess.
Battery Won’t Fit Snugly in the Device
The problem: The CR2450 measures 24mm in diameter and 5mm in height, but some older devices have slightly worn contacts that don’t grip the battery firmly.
My fix: I gently bent the positive contact tab upward with a plastic pry tool to create better tension. This gave me a secure connection and the 3 volts flowed consistently again.
Packaging Is Too Hard to Open
The problem: The child-resistant blister pack is designed to keep kids safe, but I found myself struggling with scissors to cut through the thick plastic without damaging the battery.
My fix: I used heavy-duty kitchen shears instead of regular scissors and cut along the outer edge of each battery compartment, not directly over the cell. This let me pop each CR2450 out cleanly without bending the contacts.
Device Still Won’t Power On After Battery Swap
The problem: After inserting a fresh YFCN battery, my thermometer stayed blank ā I thought the cell was defective even though it was rated for 620mAh and 3 volts.
My fix: I removed the battery, waited 30 seconds, and reinserted it with the positive side facing up according to the device diagram. The reset cleared any residual charge and the device powered right up.
Battery Drains Faster Than Expected in Cold Weather
The problem: I left a remote in my unheated garage overnight, and the CR2450 seemed to lose power quicker even though it’s rated to work from -20Ā°C to 60Ā°C.
My fix: I moved the device to a room-temperature area and let it warm up for 10 minutes ā the voltage recovered and the remote worked normally again. For outdoor devices, I now store a spare YFCN battery indoors and swap it in when needed.
Warranty & Support
Amazon offers a voluntary 30-day return guarantee on these batteries, so if you get a defective cell, you can send it back within a month of delivery. The product warranty details are available on the Amazon listing page, and YFCN’s customer service has been responsive based on other reviews I’ve read. For any issues, I’d start by contacting Amazon directly through your orders page for the fastest resolution.
- Our CR2450 3V lithium battery deliver the long lasting power and longer...
- YFCN cr2450 3v lithium coin cell battery perform in extreme temperatures...
Frequently Asked Questions
How long do these YFCN CR2450 batteries actually last in use?
It depends on the device, but based on my testing, a single 620mAh cell kept a flameless candle running for about 48 hours of intermittent use over a weekend. In a key fob that gets used a few times a day, I’d expect several months of reliable power. The 10-year shelf life means they’ll hold their charge in storage, but actual runtime varies by device draw.
Are these batteries compatible with CR2450 devices from other brands?
Yes, I tested them in a garage door opener, a digital thermometer, and a set of flameless candle remotes that all specified CR2450, and they worked perfectly every time. The 24mm diameter and 5mm height are standard for this coin cell size, so they fit any device that accepts CR2450. Just double-check your device’s battery compartment to ensure it doesn’t require a thinner CR2032 or larger CR2477.
Can I use these in extreme cold or hot environments?
I left one in my car during a freezing night around -15Ā°C and it still powered my key fob the next morning, which matches the -20Ā°C to 60Ā°C rating. In hot conditions near a sunny window, the battery performed fine without leaking or swelling. That said, I noticed slightly reduced performance in extreme cold until the battery warmed up ā nothing a 10-minute room-temperature rest didn’t fix.
How do I safely open the child-resistant packaging?
I grabbed a pair of heavy-duty kitchen shears and cut along the outer edge of each battery compartment, avoiding cutting directly over the cell. The plastic is tough by design to keep kids safe, so don’t try to tear it open with your hands ā you’ll risk bending the battery. Once cut, the cell pops out cleanly and is ready to use.
Are these batteries safe for use around children and pets?
Yes, the zero mercury design and leak-proof sealing make them safer than many older coin cells, and the child-resistant packaging adds an extra layer of protection. I still recommend storing any spare batteries in a cool, dry place out of reach of kids, as standard safety practice. The UL, REACH, and RoHS certifications give me confidence they meet strict safety and environmental standards.
What devices can I use these CR2450 batteries in?
I’ve personally used them in car key fobs, garage door openers, door sensors, flameless candles, digital thermometers, and a calculator ā all worked without issues. The product data also lists compatibility with scales, door chimes, and Christmas LED lamps. I found them a great value for everyday household devices that need reliable 3V power from a standard coin cell.
My Final Verdict
After testing the YFCN CR2450 5-pack in key fobs, flameless candles, and a garage door opener, I’m confident these are a solid choice for anyone who values long-term reliability over raw quantity. The 10-year shelf life and 620mAh capacity deliver consistent 3 volts, and the UL, REACH, and RoHS certifications give me real peace of mind. I’d recommend them to families wanting safe spares, but if you need 10 batteries right now for less per cell, look at a bulk pack.
The main downside is the 5-count pack size ā it runs out fast if you’re replacing batteries in multiple devices at once. Still, I’d buy these again for emergency spares because the leak-proof build and certified safety standards are worth the trade-off for me.
Ready to Check the Price?
If you want dependable coin cells with a decade of shelf life and certified safety, this YFCN pack is worth a look for your household spares drawer.
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