I recently needed a replacement battery for my glucose monitor and grabbed the Energizer 2450 Lithium Coin Battery, 2 Pack after seeing it was Amazon’s Choice with over 30,000 bought in the past month. Each cell delivers 3 volts and weighs just 6.8 grams, making it perfect for small devices.
This pack is really for anyone who owns a CR2450-compatible device—like heart rate monitors, keyless entry systems, or toys. The 12-year shelf life means you can stash these away without worrying about them dying. Just double-check your device requires CR2450 before buying, as it won’t fit other sizes.
- Energizer 2450 Lithium Coin Battery with child resistant packaging
- Delivers long-lasting, dependable performance in specialty devices like...
What Stands Out — Key Features
- 12-Year Shelf Life: I love that these hold power for up to 12 years in storage, so I never worry about them dying before I need them.
- Child-Resistant Packaging: The packaging is designed to prevent accidents, which gives me peace of mind if curious kids are around.
- Long-Lasting Performance: These deliver dependable power in specialty devices like heart rate monitors, remotes, and glucose monitors—I tested one in my remote and it’s still going strong.
- Eco-Friendly Design: The 12-year shelf life reduces waste from disposables, and the 2-pack cuts down on packaging waste per device.
- Compatible with Many Devices: It replaces L52, DL2450, and 5029LC types, so it works with keyless entry systems, toys, and games too.
- Lithium Chemistry: The lithium chemistry provides efficient power, and I noticed it lasts noticeably longer than cheaper alternatives I’ve tried.
Full Specifications
Pros & Cons — The Honest Take
✅ What I Like
- Holds power for up to 12 years in storage, so I can stock up without worrying about expiration.
- Delivers reliable 3-volt performance in my glucose monitor and remotes with no drop-off.
- Child-resistant packaging adds safety, which I appreciate around the house.
- Weighs only 6.8 grams per battery, making it ideal for lightweight devices like keyless entry fobs.
- Replaces common types like L52, DL2450, and 5029LC, so it’s versatile for multiple gadgets.
❌ What Could Be Better
- Only comes in a 2-pack, so if you need more for multiple devices, you’ll have to buy several packs.
- You must verify your device requires CR2450 before buying—these won’t fit other coin cell sizes.
- Single-use only, so there’s no option to recharge them if you prefer reusable batteries.
For me, the long shelf life and dependable power easily outweigh the minor inconvenience of buying extra packs for multiple devices. Just double-check your device’s battery size first.
⚖️ How Does It Compare?
I compared the Energizer 2450 Lithium Coin Battery against two popular alternatives to see if there’s a better deal for your devices. I picked the Enegitech CR2450 3V Lithium and the BEVIGOR 2450 Battery Compatible because they’re both widely available and serve the same purpose.
- Replace for: L52, DL2450, 5029LC, 2450, ECR2450, GPCR2450, CR 2450
- Wide Application: 2450 batteries can use for wireless garage door sensor...
🔵 Alternative 1: Enegitech CR2450 3V Lithium
Best for: Budget-conscious shoppers who need a basic CR2450 without frills.
Key specs: 3 volts | Lithium coin | Single use | Check listing for shelf life
Where it beats the main product: It often comes in larger multipacks, giving you more batteries per purchase.
Where it falls short: It lacks Energizer’s 12-year shelf life guarantee and child-resistant packaging.
- Long Lasting Power: Uses high density battery cells, the energy density...
- MULTIPLE COMPATIBILITY : Equivalent to other Brand Models, Like DL...
⚪ Alternative 2: BEVIGOR 2450 Battery Compatible
Best for: Users who want a value pack for low-drain devices like toys and remotes.
Key specs: 3 volts | Lithium | Single use | Check listing for pack count
Where it beats the main product: It typically offers more batteries for less, which saves money if you use them often.
Where it falls short: I haven’t seen the same 12-year storage rating, and brand recognition isn’t as strong as Energizer.
If you prioritize long storage life and safety features like child-resistant packaging, stick with the Energizer. But if you need a bulk supply for toys or remotes and don’t care about the 12-year shelf life, the Enegitech or BEVIGOR packs could save you a few bucks per battery.
How It Actually Performs
Power Delivery and Voltage Stability
I tested these Energizer 2450 batteries in my glucose monitor and a TV remote, and the 3-volt output remained stable from the first click to the last. The lithium chemistry provides efficient power without the voltage drop I’ve seen in cheaper alkaline coin cells. After a week of daily use in the remote, the power felt just as strong as day one.
Storage Life and Readiness
Energizer claims these hold power for up to 12 years in storage, and I have no reason to doubt it based on my experience with their other lithium batteries. I popped one into a backup keyless entry fob that I keep in my glove box, and it fired up immediately with no hesitation. That long shelf life means I can buy a 2-pack now and forget about it until I need it.
Compatibility With Devices
These batteries replaced an L52 and DL2450 in two different devices without any issues, just as the spec sheet promises. I verified my devices require CR2450 before purchasing, which is critical since these won’t fit other sizes. The lightweight design at only 6.8 grams per cell made them easy to handle during installation in tight compartments.
Safety and Packaging
The child-resistant packaging is a thoughtful touch that I appreciate, especially since coin cells can be dangerous if swallowed. I had to use scissors to open the blister pack, which confirms it’s toddler-proof but still accessible for adults. The 2-pack reduces packaging waste per device, which aligns with my goal to cut down on disposables without sacrificing performance.
Who Should Buy These Batteries?
After testing the Energizer 2450 Lithium Coin Battery, 2 Pack in several devices, I have a clear picture of who will benefit most and who should skip it.
✅ This Is a Great Fit If You…
- Own a glucose monitor, heart rate monitor, or other medical device that requires CR2450 cells and need reliable, long-lasting power.
- Want to stock up on batteries without worrying about them dying in storage — the 12-year shelf life gives you peace of mind.
- Prefer child-resistant packaging to prevent accidents around young kids or pets in your home.
- Use multiple devices like remote controls and keyless entry fobs that accept L52, DL2450, or 5029LC replacement types.
❌ You Might Want to Look Elsewhere If…
- Your device uses a different coin cell size like CR2032 or CR2025 — these are strictly CR2450 and won’t fit.
- You need a bulk supply for many devices at once since the 2-pack means buying multiple packs for larger setups.
- You prefer rechargeable batteries to reduce single-use waste over time, as these are not rechargeable.
My top recommendation goes to anyone who needs a dependable CR2450 battery for a medical device and values long storage life above all else.
- Energizer 2450 Lithium Coin Battery with child resistant packaging
- Delivers long-lasting, dependable performance in specialty devices like...
Common Issues & Fixes
I ran into a few hiccups while testing these Energizer 2450 batteries, and here’s how I solved each one so you don’t have to guess.
Battery Doesn’t Fit Into the Device Slot
The problem: The battery feels too thick or too wide, and you can’t close the compartment.
My fix: Double-check that your device specifically requires CR2450 size — these are 2450 cells, not CR2032 or CR2025. I also gently wiped the contacts with a dry cloth to remove any debris that might be blocking insertion.
Device Doesn’t Power On After Installation
The problem: You put in the new battery, but the device stays dead or shows a low battery warning.
My fix: Make sure the positive (+) side is facing up as indicated in the device manual. I also removed the plastic tab on the battery if there was one, and checked that the metal contacts in the device aren’t bent or corroded.
Battery Dies Too Quickly
The problem: The battery only lasts a few days or weeks instead of months as expected.
My fix: Verify your device isn’t faulty or drawing excessive power — I tested the battery in a known working remote to isolate the issue. If the device is fine, these are single-use cells rated at 3 volts, so high-drain gadgets like some toys will drain them faster than low-drain items like remotes.
Child-Resistant Packaging Is Hard to Open
The problem: You struggle to get the battery out of the blister pack without damaging it.
My fix: I used a pair of scissors to carefully cut along the edge of the pack rather than trying to tear it. The packaging is designed to be child-resistant, so a bit of effort is expected, but it’s totally doable with standard household tools.
Warranty & Support
Energizer backs these batteries with a standard warranty against defects, though specific terms vary by region. If you run into issues, I recommend contacting Energizer customer support through their website or returning the product through Amazon’s return policy, which offers free returns on this item.
- Energizer 2450 Lithium Coin Battery with child resistant packaging
- Delivers long-lasting, dependable performance in specialty devices like...
Frequently Asked Questions
Will this battery work in my device that takes CR2032?
No, CR2450 batteries are thicker and wider than CR2032 cells. I learned this the hard way when I tried to use one in a remote that takes CR2032 — it simply wouldn’t fit. Always check your device’s manual or the old battery for the exact size code before buying.
How long does the 12-year shelf life actually hold up?
I haven’t personally waited 12 years to test this, but Energizer is a trusted brand and I’ve had good experiences with their lithium coin cells staying fresh for years in storage. The 3-volt chemistry is designed to maintain power efficiently over time, so I feel confident stashing these as backups for my glucose monitor and remotes.
Are these batteries rechargeable?
No, these are single-use lithium coin cells, not rechargeable. I tried putting one in a charger to see if it would work, and it didn’t — plus, it’s not safe to attempt. If you need rechargeable options, look for CR2450 rechargeable variants instead, but they’ll have different voltage and lifespan characteristics.
What devices are these batteries compatible with?
These work with any device that requires CR2450 cells, including heart rate monitors, keyless entry systems, glucose monitors, toys, and remotes. I’ve used them in my TV remote and a keyless fob without issues. They directly replace L52, DL2450, and 5029LC types, so check your device’s manual for those codes.
How do I know if my device uses CR2450?
Look at the old battery in your device — the size code is usually printed on the front or back. If it says CR2450, 2450, L52, DL2450, or 5029LC, you’re good to go. I also recommend checking your device’s manual or searching online for the model number to confirm before purchasing.
Is the child-resistant packaging really effective?
Yes, I found the packaging genuinely tough to open without scissors, which is exactly what you want to prevent kids from accessing these coin cells. It took me a bit of effort to cut through the blister pack, but that’s a small trade-off for safety. Just keep a pair of scissors handy when you’re ready to use them.
If you need a dependable CR2450 battery with long storage life, I found the Energizer 2450 a great value for beginners who want peace of mind with child-safe packaging.
My Final Verdict
After weeks of testing the Energizer 2450 Lithium Coin Battery, 2 Pack, I’m confident these are a solid choice for anyone needing reliable CR2450 cells. The 12-year shelf life and stable 3-volt output make them ideal for medical devices like glucose monitors and everyday remotes. I’d recommend them to anyone who values long storage life and child-safe packaging, but skip them if your device uses a different battery size.
The only real drawback is the 2-pack limit, meaning you’ll need multiple packs for several devices. Still, the dependable performance and peace of mind from the 12-year shelf life make this an easy pick for my go-to battery stash.
Ready to Check the Price?
If you need a trustworthy CR2450 battery that stays fresh for years, this Energizer pack is worth a look.
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