Energizer 2450 Lithium Coin Battery, 2 Pack
4.8Editor score
Up to 12-year storage life
Child-resistant packaging
Works across common devices
In this guide
A CR2450 lithium coin battery is a compact 3-volt power source used in key fobs, smart locks, sensors, medical devices, watches, thermometers, scales, and other compact electronics. A good battery should combine reliable output, useful compatibility, secure packaging, and a storage life that suits how you plan to use it.
This guide compares 10 CR2450 lithium coin battery options based on the supplied product details, including pack quantity, stated shelf life, temperature performance, leak resistance, child-resistant packaging, replacement compatibility, and intended device applications. The list covers small multipacks for occasional replacements as well as larger packs for households and frequent maintenance.
Each review explains the product's most useful characteristics, possible trade-offs, and the situations in which it makes the most sense. Rankings reflect the supplied ratings and information rather than personal testing, while product availability and current offers can change. Always verify the battery code and device requirements before ordering.
Top 3 Picks for Best CR2450 Lithium Coin Battery
PHILIPS CR2450 Battery, 5-Pack
4.7Editor score
Up to 10-year storage life
Individually packaged batteries
Leak-proof temperature performance
PHILIPS CR2450 3V Coin Cells, 5 Count
4.6Editor score
Retains over 90% capacity
ASTM and CPSC certified packaging
Wide operating temperature range
Top 10 Best CR2450 Lithium Coin Battery in 2026 Compared
The table below compares all 10 options by pack quantity, stated storage life, safety features, and common device compatibility, making it easier to identify the right battery for routine or bulk replacement needs.
ProductsSpecificationsEditor scorePrice
Best Budget
Energizer 2450, 2 Pack
Two lithium coin cells
3-volt lithium chemistry
Up to 12-year storage
Child-resistant packaging
4.8Editor score
Editor's Choice
PHILIPS CR2450, 5-Pack
Five individually packed cells
3-volt lithium chemistry
Up to 10-year storage
Leak-proof construction
4.7Editor score
Best Premium
Duracell CR2450, 1 Count
Single coin cell battery
3-volt lithium chemistry
10-year storage guarantee
Child-resistant packaging
4.7Editor score
Energizer CR2450, Qty 6
Six coin cell batteries
3-volt ECR2450 model
ECR2450BP model number
Compact package dimensions
4.7Editor score
PGSONIC CR2450, 20 Pack
Twenty lithium coin cells
Three-volt output
Five-year shelf life
Leak-proof mercury-free design
4.6Editor score
PGSONIC CR2450, 5 Pack
Five lithium coin cells
Three-volt output
Five-year shelf life
Leak-proof sealed coating
4.6Editor score
PGSONIC CR2450, 10 Count
Ten lithium coin cells
Three-volt output
Five-year shelf life
Child-secure package
4.6Editor score
CR2450 3V Coin Cell, 20 Pack
Twenty lithium coin cells
Three-volt output
Five-year warranty
Individually sealed packaging
4.6Editor score
Duracell 2450, 6 Count
Six lithium coin cells
Three-volt output
Duralock storage preservation
Triple corrosion protection
4.6Editor score
PHILIPS CR2450, 5 Count
Five individually sealed cells
Three-volt output
Over 90% capacity retained
Child-resistant blister packaging
4.6Editor score
1. Energizer 2450, 2 Pack – Best Overall CR2450 Lithium Coin Battery
Energizer 2450, 2 Pack
Two lithium coin cells
Three-volt nominal output
Up to 12-year storage
Wide temperature range
The Energizer 2450 Lithium Coin Battery, 2 Pack stands out as the strongest all-around choice in this guide. Its supplied rating is 4.8, the highest among the ten products, and its specifications pair a compact two-cell pack with up to 12 years of stated storage life. That combination makes it practical for immediate household use without tying up a large quantity of batteries.
Pros
- Highest listed rating
- Long stated storage life
- Child-resistant packaging
- Broad device compatibility
- Wide operating temperature range
Cons
- Only two batteries included
- May require another purchase soon
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Its compatibility is another major strength. The product is specified for heart rate monitors, remote controls, keyless entry systems, glucose monitors, toys, and games, giving it relevance to both everyday household electronics and specialized devices. It is also listed as a replacement for L52, DL2450, and 5029LC models, while its 3-volt lithium coin format suits equipment designed around the standard CR2450 size.
Safety and environmental resilience add further value. Child-resistant packaging helps reduce the chance of a young child reaching an unused coin cell, and the product is described as capable of operating from approximately -22 degrees Fahrenheit to 140 degrees Fahrenheit. The two-cell quantity is the main limitation, particularly for people who maintain several devices or prefer to keep an emergency stock on hand.
This is an excellent choice for a single key fob, a smart lock, a glucose monitor, or a small group of household devices. It also suits buyers who want the confidence associated with a leading battery brand and a long storage claim without purchasing a large pack. For most routine replacement needs, the Energizer two-pack is the most balanced recommendation in the list.
Long-Term Storage Without Excess Inventory
The stated shelf life of up to 12 years makes this pack a good option for drawers, emergency kits, and infrequently replaced devices. It provides several spare batteries without requiring a bulk purchase that may sit unused for years.
Useful Across Everyday and Specialized Devices
Compatibility with medical devices, keyless entry systems, remotes, games, and toys broadens the pack's appeal. Check the device's battery marking before installation, especially when a manufacturer lists several equivalent codes.
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2. PHILIPS CR2450, 5-Pack – Best for Versatile Everyday Replacements
PHILIPS CR2450, 5-Pack
Five individually packed cells
Three-volt lithium chemistry
Up to 10-year storage
High energy capacity
The PHILIPS CR2450 5-Pack is the Editor's Choice because it combines a practical quantity with broad compatibility and a detailed feature set. Its supplied rating is 4.7, and the five individually packaged cells are suitable for maintaining several small electronics or keeping a controlled replacement stock at home. The product description specifies a 3-volt lithium coin cell and a storage life of up to 10 years.
Pros
- Strong 4.7 rating
- Useful five-cell quantity
- Up to 70% more power
- Individual packaging
- Leak-proof performance
Cons
- Shorter claim than 12-year option
- Specific energy claim varies by comparison
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One of its most compelling claims is up to 70% more power than standard alternatives. The description also identifies compatibility with high- and low-drain equipment, including key fobs, garage-door sensors, medical equipment, smart sensors, thermometers, scales, watches, and remote controls. That range allows one battery type to cover many parts of a household rather than forcing buyers to maintain different specialty batteries.
The batteries are described as leak-proof and capable of reliable performance between -20 degrees Celsius and +30 degrees Celsius. Each one is individually packaged to help prevent loss and preserve freshness until needed. These attributes make the pack a sensible selection for users who want organization alongside dependable performance, although the energy comparison is a manufacturer claim rather than an independently verified result.
Choose this PHILIPS pack if you service several compatible devices, want clearly separated spare cells, or appreciate a stated 10-year storage period. It is a particularly good fit for car keys, home sensors, and compact medical electronics. Verify polarity and the required battery code, then install each cell according to the device manufacturer's instructions.
One Pack for Numerous Small Devices
Five cells offer more flexibility than a single or two-cell pack without creating the bulk of a 10-, 20-, or 60-cell inventory. They are well matched to homes with several key fobs, sensors, watches, or bathroom scales.
Organized Storage and Freshness
Individual packaging helps keep unused cells separated and makes it easier to store one at a time. It is a practical feature for emergency drawers and device-maintenance kits where batteries may remain unused for extended periods.
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3. Duracell CR2450, 1 Count – Best Single Replacement Battery
Duracell CR2450, 1 Count
One lithium coin cell
Three-volt output
10-year storage guarantee
Child-resistant packaging
The Duracell CR2450 Lithium Battery is the most focused choice when only one replacement is needed. It has a supplied rating of 4.7 and comes in a single-cell configuration, reducing unnecessary inventory for a watch, car remote, or key fob. Its title directly calls out those common uses, making the intended application easy to understand.
Pros
- Ideal for one replacement
- Strong 4.7 rating
- Recognized battery brand
- Child-resistant package
- 10-year storage guarantee
Cons
- Only one cell included
- Requires repeat purchases
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Duracell describes the battery as providing reliable, long-lasting power for medical devices, security devices, electronics, and other equipment. Child-resistant packaging adds an important layer of household protection, while the stated 10-year storage guarantee makes the cell suitable for emergency reserves as well as immediate use. It is also identified as equivalent to the DL2450 and CR2450 designations.
The obvious trade-off is quantity. A one-cell pack offers no spare for a second device, a future replacement, or a household maintenance kit. Buyers who expect to replace batteries regularly may find the six-count option more efficient in terms of shopping frequency. The single pack is still valuable when a specific device has reached the end of its service life and the required type is already known.
This product best suits the buyer who needs exactly one dependable CR2450 equivalent. It is particularly convenient for travel, a vehicle glove compartment, or a medication device that needs one specific replacement. Confirm that the device requests a CR2450, DL2450, or stated equivalent, and follow the polarity guide printed inside the compartment.
A Simple Replacement for One Device
The single-cell format avoids carrying spare batteries that will not be used. It is a straightforward option when a key fob, watch, or remote has stopped responding and the replacement specification is already known.
Safety and Storage Confidence
Child-resistant packaging and a 10-year storage guarantee add value even for a small purchase. The cell can serve as a dedicated spare without occupying much space, provided it remains in its original package.
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4. Energizer CR2450, Qty 6 – Best Balanced Six-Cell Household Pack
Energizer CR2450, Qty 6
Six lithium coin cells
Three-volt ECR2450
ECR2450BP model number
Compact storage package
The Energizer CR2450 Lithium Battery, 3v ECR2450, Qty 6 provides a middle-ground inventory for households that regularly replace small batteries. Its supplied rating is 4.7, matching several higher-ranked options, and the six-cell count is large enough to cover multiple devices without reaching the larger package sizes offered later in the guide.
Pros
- Useful six-cell quantity
- Strong 4.7 rating
- Recognized Energizer branding
- Compact package dimensions
- Suitable for shared inventories
Cons
- Limited feature details supplied
- No stated shelf-life figure
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The product is identified by the model number ECR2450BP and is a 3-volt lithium coin battery. Its compact listed package dimensions make it convenient to store in a utility drawer, travel organizer, or maintenance kit. The Energizer name also provides useful brand recognition for shoppers who already trust the manufacturer in other battery categories.
The supplied information is comparatively limited. It does not provide a stated shelf life, operating temperature range, replacement codes, or specific device applications. That means the main evidence available for comparison is the rating, quantity, model designation, and Energizer branding. Buyers should therefore confirm the required battery code and inspect the package for the full manufacturer information.
This six-pack is a good option for families managing multiple key fobs, remotes, watches, sensors, or similar devices. It is also a sensible middle quantity when you want spares but do not need a bulk maintenance supply. For a single-device need, the two-pack or one-cell option is more concise; for regular replacement, this product offers a practical balance.
Convenient Quantity for Shared Maintenance
Six cells let a household rotate batteries across several products while retaining a few spares. The quantity is large enough to be useful without creating the storage demands of a 20-cell package.
Compact Model Identification
The ECR2450BP model number gives buyers a clear identifier when comparing the product with compatible equipment. Always check the device manual or battery compartment to confirm that ECR2450 is accepted.
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5. PGSONIC CR2450, 20 Pack – Best Bulk Replacement Option
PGSONIC CR2450, 20 Pack
Twenty lithium coin cells
Three-volt output
Five-year shelf life
Mercury-free leak-proof design
The PGSONIC 20 Pack CR2450 3V Lithium Coin Battery is built for frequent replacement and bulk household maintenance. Its supplied rating is 4.6, and the generous quantity can support many devices or a well-stocked maintenance drawer. The product is described as providing powerful, reliable, high-capacity power with a five-year shelf life.
Pros
- Large twenty-cell quantity
- Five-year shelf life
- Leak-proof construction
- Zero-percent mercury
- Broad compatibility list
Cons
- May be excessive for occasional use
- Shorter storage claim than leaders
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Its compatibility list includes flameless candles, lights, sensors, scales, remote controls, and key fobs. It also works with 2450, DL2450, ECR2450, GPCR2450, and CR 2450 designations, giving it flexibility across common equipment. The stated leak-proof, zero-percent-mercury construction adds another layer of reassurance for devices where leakage could cause damage.
The main consideration is whether 20 cells fit your needs. A household with only one compatible device may accumulate unused batteries, and the five-year shelf-life claim is shorter than the ten- or 12-year claims made by some competing products. Bulk packaging also requires dry, secure storage away from children and pets, particularly if individual cells are removed and distributed around the home.
This pack is most appropriate for landlords, property managers, offices, workshops, or households with numerous sensors and small electronics. It is also useful for people who prefer infrequent replenishment over regular small purchases. Confirm all relevant model codes before buying and store the cells in their original protective packaging until needed.
Useful for High-Replacement Households
A 20-cell inventory suits homes with multiple key fobs, sensors, flameless candles, scales, and similar products. It reduces the need for frequent ordering while keeping replacements readily available.
Leak Resistance and Responsible Chemistry
The stated leak-proof design and zero-percent-mercury formulation make the pack appropriate for careful use in sensitive electronics. Safe installation and correct polarity remain essential regardless of the battery's construction.
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6. PGSONIC CR2450, 5 Pack – Best Five-Cell General-Use Battery
PGSONIC CR2450, 5 Pack
Five lithium coin cells
Three-volt output
Five-year shelf life
Special sealing and coating
The PGSONIC CR2450 3V Lithium Battery 5-Pack is a versatile general-purpose choice for devices that use small coin cells. Its supplied rating is 4.6, and the product description emphasizes fresh 3-volt power, strong reliability, high energy density, and high capacity. Five batteries provide enough supply for common household replacements without moving into bulk inventory.
Pros
- Practical five-cell quantity
- High energy density
- Five-year shelf life
- Leak-proof special sealing
- Many household applications
Cons
- Five-year shelf-life claim
- Lower rating than top selections
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The pack is described as safe and leak-proof, using special sealing and coating technology, and contains zero-percent mercury. Its stated applications include flameless candles, lights, remote controls, key fobs, alarm and contact sensors, and smart devices. Equivalent designations include DL2450, ECR2450, GPCR2450, and CR 2450, broadening the range of equipment it can serve.
Its five-year shelf life is sufficient for normal spare-battery storage, though buyers prioritizing long-term inventory may prefer products advertising ten or more years. The information does not state a child-resistant packaging feature, so unused cells should remain secured and inaccessible to children. As with any coin cell, proper handling is important during installation.
This is a good selection for a household that wants a moderate number of CR2450 batteries for mixed devices. It works well for key fobs, contact sensors, flameless candles, and remote controls, particularly when those products are used regularly. Verify the device's required code and voltage, and keep unused cells in a secure, dry location.
Flexible Supply for Mixed Devices
Five cells are enough to service several common devices while avoiding a large storage commitment. The broad application list makes this a practical choice for mixed household inventories.
Sealing Helps Protect Equipment
The described special sealing and coating are intended to reduce leakage risk. Correct installation, clean battery contacts, and prompt replacement of a depleted cell are still important for device longevity.
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7. PGSONIC CR2450, 10 Count – Best Balanced Pack for Frequent Use
PGSONIC CR2450, 10 Count
Ten lithium coin cells
Three-volt output
Five-year shelf life
Child-secure package
The PGSONIC CR2450 10 Count offers a useful midpoint between a small replacement pack and a large maintenance supply. It has a supplied rating of 4.6 and is designed for flameless candles, sensors, key fobs, thermometers, scales, and other compact devices. The ten-cell quantity can keep several products running or provide a manageable reserve for the home.
Pros
- Ten-cell practical quantity
- Leak-free performance claim
- Mercury-free construction
- Child-secure packaging
- Wide household applications
Cons
- Five-year storage period
- Limited to five spare cells
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Safety details distinguish this version from the five-cell PGSONIC option. The package is described as child secure to help protect children and pets, while the cells are marketed as leak-free and mercury-free. A five-year shelf life is stated, and a best-before date can be found on the back of the package for easier inventory management.
The product is compatible with ECR2450, GPCR2450, DL2450, and CR2450 designations, as listed in the supplied description. Buyers should still compare the physical dimensions and voltage requirement with the original battery because some devices use similar-looking codes with different electrical requirements. Keeping spares in their original package also reduces accidental contact and helps protect small cells from loss.
This ten-count pack suits active households, small offices, or property managers who regularly encounter battery replacement. It is more economical in purchasing frequency than a five-cell pack but avoids the surplus risk of a 20-cell option. For users who want straightforward bulk availability and child-secure storage, it delivers a balanced combination of quantity and protection.
A Practical Quantity for Regular Replacements
Ten cells offer enough supply for multiple devices or several replacement cycles. The pack is sized for users who want fewer routine orders without committing to a much larger inventory.
Security and Mercury-Free Design
Child-secure packaging helps limit access to small cells, and the cells are described as mercury-free. Unused batteries should still be stored in a secure location and kept away from children and pets.
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8. CR2450 3V Coin Cell, 20 Pack – Best for Individually Sealed Storage
CR2450 3V Coin Cell, 20 Pack
Twenty lithium coin cells
Three-volt output
Five-year warranty
CE and RoHS certified
The CR2450 3V Lithium Coin Cell Button Battery 20 Pack distinguishes itself through its individual blister packaging and stated certifications. Its supplied rating is 4.6, and every battery is described as arriving in a sealed pack designed to prevent contact discharge during storage. The cells are also stated to be fully charged and ready for installation.
Pros
- Individually sealed blister packs
- CE and RoHS certified
- Five-year warranty
- Broad device compatibility
- Leak-proof nickel-plated shell
Cons
- Large quantity for light users
- Generic product naming
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The product is certified to CE and RoHS standards and carries a five-year warranty. Its engraved nickel-plated construction is described as leak-proof, while its mercury-free construction provides another useful specification. The compatibility list covers car key fobs, garage-door openers, flameless candles, remote controls, doorbell cameras, thermometers, calculators, watches, and other electronics.
One consideration is that the product name is more generic than the branded alternatives, so buyers have less manufacturer-specific information in the listing title. The five-year warranty is also different from a storage-life claim and should not be interpreted as a promise that every unused cell will retain full capacity for five years. Nevertheless, the sealed packaging and stated quality controls make this a credible bulk option.
This 20-pack is best for households, offices, installers, or maintenance professionals who replace coin cells regularly and value keeping every unused cell separated. It is less compelling for one device, but the broad compatibility and protective packaging support use across an entire home or property. Store unused cells securely, and follow the device's required installation orientation.
Sealed Packs Reduce Storage Risks
Individual blister packs help prevent accidental contact between cells and make unused units easier to track. They are especially helpful in drawers containing other batteries or small metal components.
Certifications and Warranty Add Assurance
The listed CE and RoHS certifications, leak-resistant construction, and five-year warranty strengthen the product's positioning for dependable household use. Warranty terms should be reviewed on the listing for specific conditions and exclusions.
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9. Duracell 2450, 6 Count – Best Six-Cell Battery with Storage Protection
Duracell 2450, 6 Count
Six lithium coin cells
Three-volt output
Duralock power preservation
Triple corrosion protection
The Duracell 2450 3V Lithium Coin Battery 6 Count is a solid choice for shoppers who trust a leading battery brand and prefer a moderate quantity. Its supplied rating is 4.6, and the six-cell pack is practical for multiple devices or keeping a limited stock of spares. The 3-volt specification matches the standard CR2450 format used in many compact electronics.
Pros
- Six-cell replacement quantity
- Duralock storage preservation
- Triple corrosion protection
- High-purity lithium construction
- Recognized brand credibility
Cons
- Limited application details
- No explicit shelf-life figure
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Its defining features are Duralock power-preserve technology, intended to preserve power during storage, and triple corrosion protection. The cells are also described as high-purity lithium batteries. These attributes make the pack relevant to owners of key fobs, security systems, medical devices, and similar products who want dependable performance without purchasing a large number of cells.
The supplied details do not provide a specific storage-life number, compatible replacement codes, or a list of intended devices. That limits the depth of direct comparison with products that document those features. Nevertheless, the storage-preservation and corrosion-protection claims address two practical concerns: preserving unused power and protecting equipment from battery-related corrosion.
This six-count Duracell pack is best for households with several compatible devices, medical or security equipment, or consumers who prefer a recognized brand with a moderate inventory. It is a sensible alternative to the single-cell Duracell option when the savings in purchase frequency and spare availability matter more than minimizing unused stock.
Power Preservation for Stored Batteries
Duralock technology is intended to maintain power while cells sit in storage. This is especially useful for emergency spares and devices that are only used occasionally.
Corrosion Protection for Sensitive Devices
Triple corrosion protection adds defense for devices with sensitive battery compartments. It does not replace correct installation or routine care, but it complements those practices when the cell is properly handled.
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10. PHILIPS CR2450, 5 Count – Best Premium Long-Lasting Coin Cell
PHILIPS CR2450, 5 Count
Five individually sealed cells
Three-volt output
Over 90% capacity retained
Child-resistant blister packaging
The PHILIPS 3V Lithium CR2450 5 Count is the Best Premium option because it presents the most detailed storage, safety, and environmental claims in the supplied product information. Its 4.6 rating is solid, and the product states that each cell retains more than 90% of its capacity after 10 years of sealed storage while providing stable 3-volt power until fully used.
Pros
- Detailed capacity-retention claim
- ASTM and CPSC certified packaging
- Wide temperature operating range
- Non-toxic leak-proof shell
- Individual sealed storage
Cons
- Some claims lack independent context
- Five-cell quantity is modest
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The packaging is described as ASTM and CPSC certified child-resistant blister packaging. Each battery also has a non-toxic, leak-proof shell free of heavy metals. These safety details make the pack attractive for households with children and for use in high-value electronics. The five individual sealed units allow convenient storage and reduce the chance of confusing cells with other coin batteries.
The operating range is stated as -4 degrees Fahrenheit to 140 degrees Fahrenheit, supporting use in cold garage remotes and warmer vehicle key fobs. The claimed compatibility list includes car key fobs, smart locks, garage-door openers, glucose meters, scales, thermostats, watches, and LED lights. These capacity and durability statements come from the product description and should be understood as manufacturer claims rather than independent test results.
This premium PHILIPS pack is best for people who value detailed safety information, long-term storage, and a moderate five-cell quantity. It is especially useful for smart locks, medical devices, and vehicle remotes where dependable power matters. Check the device's required code, install the battery promptly, and retain unused cells in their protective packaging.
Long-Lasting Capacity for Stored Spares
The stated retention of more than 90% capacity after 10 years of sealed storage is the pack's standout feature. It makes the batteries suitable for long-term emergency reserves as well as regular replacement.
Layered Household Safety Features
Certified child-resistant blister packaging, individual seals, and a non-toxic leak-proof shell all help reduce risks associated with small cells. Batteries should still be stored away from children and pets and installed only in the specified orientation.
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Buying Guide – How to Choose the Best CR2450 Lithium Coin Battery
The right CR2450 battery depends on device compatibility, expected replacement frequency, storage conditions, and safety priorities. Comparing the details below can prevent an incorrect purchase and help you select a pack that matches your routine.
Confirm the Exact Battery Code
Choose only a battery whose code and specifications clearly match the device requirement.
Match Pack Size to Replacement Frequency
Select a quantity that covers your normal replacement cycle without creating excessive unused inventory.
Compare Stated Shelf Life
Prioritize a long storage claim when keeping unused spares; otherwise, focus on device fit and reliability.
Consider Temperature and Leak Resistance
For variable-temperature locations, prioritize stated temperature performance and leak-resistant construction.
Look for Protective Packaging
Favor child-resistant and individually sealed packaging, especially in homes with young children.
Review Broad Device Compatibility
Choose a broadly compatible option when one battery code serves many devices throughout your home.
Balance Certification and Warranty Claims
Use certifications and warranties as supporting evidence, not as a substitute for checking compatibility.
Plan for Proper Storage
Store unused cells securely in original packaging and replace spent batteries promptly for dependable performance.
How to Use and Care for Your CR2450 Lithium Coin Battery
Before replacing a battery, turn off the device if it has an on-off control, open the compartment carefully, and note the position and orientation of the old cell. Some devices show a plus sign near one terminal, while others use a diagram. Remove the depleted battery and avoid touching the new cell's metal surfaces with your fingers when possible.
Install the new CR2450 or explicitly approved equivalent according to the polarity diagram. Press it gently into place without bending the contacts, then close the compartment securely. Test the device if the manufacturer recommends it, and reset or reprogram equipment only when instructed by its user guide. Never attempt to recharge a primary lithium coin cell unless the device and battery documentation explicitly support that function.
Store unused cells in their original or a suitable child-resistant package in a cool, dry place away from heat, moisture, metal, children, and pets. When a battery is exhausted, remove it promptly and dispose of it according to local battery and electronic-waste guidance. Avoid exposing a cell to crushing, puncture, fire, or short-circuit conditions, and clean any leakage or corrosion from the device using appropriate care.
Frequently Asked Questions
Is CR2450 the same as DL2450?
CR2450 and DL2450 are commonly listed as equivalent designations for the same 3-volt lithium coin-cell format. However, the device manufacturer may specify a particular code or list additional requirements. Always follow the marking in the battery compartment and check the voltage, diameter, and thickness before installation.
What devices use a CR2450 battery?
CR2450 batteries are commonly used in car key fobs, car remotes, smart locks, watches, thermometers, bathroom scales, sensors, garage-door openers, flameless candles, and some medical or small household electronics. Compatibility depends on the required size, voltage, and design, so check the original battery marking rather than relying only on the device category.
How long do CR2450 batteries last in storage?
The products in this guide advertise storage periods ranging from five years to 12 years, with individual listings making more specific claims. Actual results can vary with temperature, humidity, packaging condition, and use. Keep unused cells sealed in a cool, dry environment to help preserve their stated storage performance.
Can I use a CR2450 instead of CR2032?
Usually not without confirming the device and its design. CR2032 and CR2450 cells can share a nominal voltage, but they have different thicknesses and diameters, and some devices depend on the correct physical fit and contact pressure. Check the exact code printed in the compartment or specified in the device manual before substituting one type for another.
How should unused lithium coin batteries be stored?
Store them in their original or suitable child-resistant packaging, away from children and pets. Keep them away from metal objects, moisture, excessive heat, and direct physical damage. Separating cells in their original blister packaging also helps prevent accidental electrical contact during storage.
What does child-resistant packaging mean for a coin battery?
Child-resistant packaging is designed to make it more difficult for young children to open the package and access the small cells. It does not make loose coin batteries harmless, so unused cells should remain secured and stored out of reach. The same caution applies to used batteries until they are properly recycled or disposed of.
Can a leaking CR2450 damage a device?
Yes. A leaking coin battery can corrode contacts and damage the battery compartment or nearby electronics. If leakage is found, remove the cell according to the device instructions, avoid spreading residue, and have the compartment inspected or cleaned appropriately. Prevent recurrence by replacing old cells promptly and avoiding mixed use of old and new batteries in the same device.
Should I use all batteries from the same pack together?
Using cells from the same pack and close manufacturing date is generally preferable because they tend to have similar age and performance. If a device requires multiple cells, follow its instructions and replace the complete set when needed rather than mixing depleted cells with fresh ones. This helps prevent early shutdowns and uneven power delivery.
Final Thoughts on Choosing the Best CR2450 Lithium Coin Battery
The Energizer 2450 two-pack is the strongest all-around pick because it combines the highest supplied rating, a long storage claim, child-resistant packaging, and broad compatibility. The PHILIPS five-pack is the Editor's Choice for buyers who want a more useful quantity, individual packaging, and a wide range of everyday applications. For premium features, the PHILIPS five-count option stands out with detailed capacity, certification, and temperature claims.
The right alternative may be a single Duracell cell for one immediate replacement, a six-cell Energizer or Duracell pack for a moderate household inventory, or a PGSONIC and individually sealed bulk pack for frequent maintenance. Prioritize exact device compatibility first, then consider quantity, storage life, leak resistance, protective packaging, and temperature performance according to where the batteries will be used.
Before ordering, verify the required battery code, voltage, and physical dimensions, and review the current listing details and available offers. Product information, packaging, ratings, and availability can change, so confirm the latest specifications and seller information before making a final purchase.