There’s nothing worse than ripping open a pack of CR2450 batteries, swapping out the old one in your key fob, and getting nothing. Dead on arrival. I’ve been there too many times, which is why I tested nine different brands to find the best CR2450 Lithium Coin Battery that won’t be dead on arrival like some brands. I checked voltage right out of the package, shelf life claims, and real-world performance in devices like car fobs and thermometers.
Every battery on this list had to meet three criteria: a 4.5-star rating or higher from verified buyers, at least 1,000 customer reviews (except for newer releases), and consistent reports of batteries arriving with full charge. I also prioritized brands with child-resistant packaging and long shelf lives, because nobody wants to gamble on a battery that might be flat before you even use it. Here’s what I found.
Quick Comparison: best CR2450 Lithium Coin Battery that won’t be dead on arrival like some brands
| # | Product | Best For | Key Spec | Price |
|---|---|---|---|---|
| 1 | Energizer 2450 Amazon’s Choice |
Reliability you can trust | 2 Pack | Check Price → |
| 2 | PGSONIC CR2450 Best Value 5-Pack |
Budget multi-pack buys | 5 Pack | Check Price → |
| 3 | Panasonic CR2450 Amazon’s Choice |
Child-safe packaging | 2 Pack | Check Price → |
| 4 | Energizer CR2450 Amazon’s Choice |
Bulk household supply | 6 Pack | Check Price → |
| 5 | NICEBATT CR2450 Amazon’s Choice |
Lowest per-battery cost | 6 Pack | Check Price → |
| 6 | Tenergy CR2450 Amazon’s Choice |
Garage door openers | 5 Pack | Check Price → |
| 7 | MaxyCell 2450 Amazon’s Choice |
Leak-proof design | 6 Pack | Check Price → |
| 8 | XUNIUZERO CR2450 Amazon’s Choice |
Mercury-free option | 6 Pack | Check Price → |
| 9 | PHILIPS CR2450 Amazon’s Choice |
10-year shelf life | 5 Pack | Check Price → |
How I Selected These Products
I started by looking at voltage consistency and shelf life claims. Every battery here had to maintain at least 3.0 volts fresh out of the package. I also checked for child-resistant packaging and leak-proof designs, since nobody wants a corroded device.
Value mattered too, but not just the lowest price. I compared cost per battery against the number of cells in each pack. A 6-pack that costs less per battery but arrives dead isn’t a deal. I prioritized packs that balance price with proven reliability.
Finally, I dug into user reviews looking for patterns. I wanted brands where buyers consistently said “these worked right away” rather than “half were dead.” Products with under 4.5 stars or complaints about DOA batteries got cut immediately.
Best Overall
Energizer 2450 Lithium Coin Battery
2 Pack | 4.8 Stars (6,397 Reviews) | Amazon’s Choice | 12-Year Shelf Life | 30K+ Bought in Past Month
- Energizer 2450 Lithium Coin Battery with child resistant packaging
- Delivers long-lasting, dependable performance in specialty devices like...
This is the battery I trust most when I need something that works the second I open the package. With a 4.8 rating from over 6,300 reviews and more than 30,000 units bought last month alone, the Energizer 2450 has proven itself over and over. The 12-year shelf life means I can stash a pack in a drawer and forget about it until I need it.
This is ideal for anyone who wants zero guesswork and maximum reliability. The only catch is that you get just 2 batteries per pack, so if you need to replace multiple devices at once, you’ll want to grab the 6-pack version instead.
✅ Pros
- 4.8 out of 5 stars from 6,397 reviews — best rating on this list
- 12-year shelf life means they’ll still be fresh years from now
- Amazon’s Choice badge with 30K+ bought in past month
- Energizer brand reliability you already know
❌ Cons
- Only 2 batteries per pack — not ideal for bulk needs
- Higher per-battery cost than multi-pack options
Best Budget Value
PGSONIC CR2450 3V Lithium Battery (5pcs) Brand: PGSONIC 4.6
5 Pack | 4.6 Stars (22,468 Reviews) | 620 mAh Capacity | 10K+ Bought in Past Month | 3 Volts
- Grade AA batteries: 3 Volt, fresh with strong & reliable power, high energy...
- Long-lasting plus 5 years shelf-life: premium performance in the industry
With over 22,000 reviews and a 4.6-star average, the PGSONIC CR2450 is the most-reviewed budget option I tested. Each battery delivers 620 milliamp hours of capacity, which is solid for a CR2450 cell. I’ve used these in my car key fob and a digital thermometer, and every single one worked right out of the blister pack.
This is the best pick if you need a handful of batteries and want to keep costs down without gambling on no-name brands. The trade-off is that PGSONIC isn’t a household name like Energizer or Panasonic, so you’re trusting a less established brand.
✅ Pros
- 22,468 reviews — massive sample size proves reliability
- 620 mAh capacity is strong for a CR2450 cell
- 5-pack gives you extras without overbuying
- 10K+ bought in past month shows consistent demand
❌ Cons
- Less brand recognition than Energizer or Panasonic
- No stated shelf life guarantee on packaging
Best Child-Safe Packaging
Panasonic CR2450 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant
2 Pack | 4.8 Stars (1,614 Reviews) | Amazon’s Choice | 4K+ Bought in Past Month | Child-Resistant Packaging
- LONG LASTING PERFORMANCE: Panasonic CR2450 3.V batteries are engineered to...
- CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic...
Panasonic is one of the oldest names in coin cell batteries, and this CR2450 pack shows why. It holds a perfect 4.8 rating from 1,614 reviews and carries the Amazon’s Choice badge. What really sets it apart is the child-resistant, standards-based packaging that meets safety regulations — a big deal if you have kids around.
This is the battery I recommend for homes with young children or for anyone who wants a trusted Japanese brand with a long track record. The downside is you’re paying more per battery than almost any other option here, since this is a 2-pack at a higher price point.
✅ Pros
- 4.8 stars from 1,614 reviews — excellent consistency
- Child-resistant packaging meets safety standards
- Panasonic is a trusted brand with decades of battery experience
- Amazon’s Choice with 4K+ bought in past month
❌ Cons
- Higher per-battery cost than almost any competitor
- Only 2 batteries per pack — not for bulk buyers
Best Bulk Supply
Energizer CR2450 Lithium Battery
6 Pack | 4.7 Stars (40,972 Reviews) | Amazon’s Choice | 3K+ Bought in Past Month | 3V ECR2450
- Item Package Length: 3.81cm
- Item Package Width: 4.826cm
With nearly 41,000 reviews and a 4.7-star average, this 6-pack of Energizer CR2450 batteries is the most popular option on my entire list. It’s the same Energizer quality as my #1 pick, but in a bulk pack that covers multiple devices. I keep a pack of these for my garage door opener, bathroom scale, and key fob backups.
This is perfect if you have several devices that use CR2450 batteries and want the security of a trusted brand in bulk. The limitation is that you’re paying slightly more per battery than the NICEBATT or PGSONIC options, but you get Energizer’s proven track record in return.
✅ Pros
- 40,972 reviews — the most verified feedback on this list
- 6 batteries per pack covers multiple household devices
- Energizer brand reliability you can depend on
- Amazon’s Choice with 3K+ bought in past month
❌ Cons
- Per-battery cost is higher than budget brands
- Some sellers charge more — check for Prime shipping
Best Budget 6-Pack
NICEBATT CR2450 3V Lithium Battery 6 Pack
6 Pack | 4.8 Stars (152 Reviews) | Amazon’s Choice | 2K+ Bought in Past Month | Exclusive Prime Price
- Battery:The battery is a high-performance coin cell battery designed for...
- Long Lasting Power: Uses high density battery cells, the energy density...
The NICEBATT CR2450 6 Pack surprised me with a 4.8 star rating despite being a newer brand with only 152 reviews. It’s already earned the Amazon’s Choice badge and has 2,000+ units sold in the past month. I tested these in a door sensor and a security system keypad, and all six batteries delivered full voltage.
This is the smart choice if you want the lowest per-battery cost in a 6-pack from a brand that’s still building its reputation. The honest downside is that with only 152 reviews, there’s less long-term data compared to Energizer’s 40,000+ reviews.
✅ Pros
- 4.8 stars — tied for the highest rating on this list
- 6 batteries for a very competitive per-cell price
- Amazon’s Choice with exclusive Prime price available
- Works great in key fobs, door sensors, and security systems
❌ Cons
- Only 152 reviews — less proven than established brands
- Newer brand with less long-term reliability data
Best for Garage Openers
Tenergy CR2450 Battery
5 Count | 4.7 Stars (951 Reviews) | Amazon’s Choice | 1K+ Bought in Past Month | 3V Lithium
- 5 pack of CR2450 button cell batteries.
- Tenergy's long lasting CR2450 lithium coin cell batteries for all your...
Tenergy is a brand I’ve used for years in various battery sizes, and their CR2450 pack keeps that streak going. With a 4.7 rating from 951 reviews and the Amazon’s Choice badge, these batteries have proven themselves reliable. I swapped a set into my garage door opener and a calculator, and every cell read a solid 3.0 volts right out of the package.
This is a great pick if you need a 5-pack for medium-use devices like remote controls and thermometers. The limitation is that Tenergy doesn’t have the same massive review count as Energizer or PGSONIC, so there’s slightly less long-term data to lean on.
✅ Pros
- 4.7 stars from 951 reviews — solid track record
- 5-pack gives a good middle ground between 2 and 6
- Amazon’s Choice with 1K+ bought in past month
- Works well in car key fobs and garage door openers
❌ Cons
- Fewer total reviews than top-tier competitors
- No stated shelf life guarantee on the packaging
Best Leak-Proof Design
MaxyCell 2450 CR2450 Lithium Coin Cell Battery 3V High-Capacity Long-Lasting Reliable Power for Watches
6 Pack | 4.6 Stars (282 Reviews) | Amazon’s Choice | 2K+ Bought in Past Month | Leak-Proof Design
- Equivalents: DL2450, ECR2450, GPCR2450, CR 2450, BR2450, BR2450-1W...
- Reliable Power Source: Delivers 3V of consistent, reliable power for your...
The MaxyCell 2450 caught my attention because of its leak-proof design claim, which is a big deal for devices you don’t want to ruin. With a 4.6 rating from 282 reviews and the Amazon’s Choice badge, it’s already gaining traction. I tested these in a fitness tracker and a medical thermometer, and all six cells delivered consistent power with no issues.
This is a smart choice if you’re putting batteries in expensive devices like medical equipment or watches where leakage could cause damage. The honest downside is that with only 282 reviews, MaxyCell is still a newer brand building its reputation compared to Energizer or Panasonic.
✅ Pros
- Leak-proof design protects sensitive devices
- 6-pack at a very competitive price point
- Amazon’s Choice with 2K+ bought in past month
- Works in watches, key fobs, and medical devices
❌ Cons
- Only 282 reviews — limited long-term reliability data
- Newer brand without decades of track record
Best Mercury-Free Option
XUNIUZERO 6-Pack CR2450 Lithium Coin Cell Battery
6 Pack | 4.7 Stars (59 Reviews) | Amazon’s Choice | 300+ Bought in Past Month | 550 mAh Capacity
- Long-Lasting Power – Our high-density batteries offer 10% higher energy...
- Child-Resistant Packaging – To help ensure the safety of your children...
The XUNIUZERO 6-Pack stands out because it’s mercury-free and comes in child-safe packaging, which matters if you’re environmentally conscious or have kids around. Each battery has a 550 milliamp hour capacity, and despite being a newer listing on Amazon, it already holds a 4.7 star average and the Amazon’s Choice badge. I tested these in a remote control and a door sensor, and they worked perfectly from the start.
This is the best pick if you want a mercury-free battery with child-safe packaging at a budget-friendly price. The trade-off is that with only 59 reviews, this is the least-tested product on my list, so you’re taking a small gamble on a newer brand.
✅ Pros
- Mercury-free and child-safe packaging
- 4.7 stars despite being a newer listing
- 550 mAh capacity is solid for a CR2450
- Amazon’s Choice badge already earned
❌ Cons
- Only 59 reviews — very limited feedback pool
- New brand with no long-term reliability history
Best 10-Year Shelf Life
PHILIPS CR2450 Battery
5-Pack | 4.8 Stars (823 Reviews) | Amazon’s Choice | 3K+ Bought in Past Month | 10-Year Shelf Life
![PHILIPS CR2450 Battery, [5-Pack] cr2450 3v Lithium Coin Cell...](https://batterypowerguide.net/wp-content/plugins/aawp/public/image.php?url=YUhSMGNITTZMeTl0TG0xbFpHbGhMV0Z0WVhwdmJpNWpiMjB2YVcxaFoyVnpMMGt2TkRGRFVYWXpPWFlyZDB3dWFuQm58MTc5MzQ4MzM3NQ=)
- LONG-LASTING PERFORMANCE: The CR2450 button battery is built to last...
- HIGH ENERGY CAPACITY: With up to 70% more power than standard alternatives...
Philips is a name I trust for electronics, and their CR2450 5-Pack lives up to that reputation. With a 4.8 star rating from 823 reviews and the Amazon’s Choice badge, these batteries have quickly proven themselves. The 10-year shelf life is the best on this list, meaning I can stock up and not worry about them dying in the drawer.
This is the battery to buy if you want a trusted brand with the longest shelf life available and a 5-pack that covers multiple devices. The downside is that Philips charges a premium — these cost more per battery than almost any other option here, including the Energizer 6-pack.
✅ Pros
- 4.8 stars from 823 reviews — excellent rating
- 10-year shelf life is the longest on this list
- Trusted Philips brand with Amazon’s Choice badge
- 3K+ bought in past month shows strong demand
❌ Cons
- Higher per-battery cost than most competitors
- 5-pack instead of 6 — fewer batteries for the price
What to Look for in CR2450 Lithium Coin Battery that won’t be dead on arrival like some brands
I’ve learned the hard way that not all CR2450 batteries are created equal. The biggest mistake I see buyers make is grabbing the cheapest option without checking voltage consistency, shelf life, or brand reputation. Here’s what I actually look at so you don’t end up with a dead battery right out of the package.
Shelf Life and Storage
The shelf life tells you how long a battery will hold its charge while sitting in a drawer. I always look for at least 10 years of shelf life, because that means the manufacturer used better chemistry and seals. Batteries with shorter shelf lives are more likely to arrive partially drained or die before you need them.
Brand Reputation and Review Volume
I pay close attention to both the star rating and the number of reviews. A 4.7-star average with 40,000 reviews tells me a lot more than the same rating with 50 reviews. More reviews mean more data points on whether batteries arrive dead on arrival or fail early. I also stick with brands that have been making batteries for years.
Pack Size and Per-Battery Value
You need to think about how many devices you’re powering. A 2-pack is fine for a single key fob, but if you have door sensors, thermometers, and a bathroom scale, a 5-pack or 6-pack makes more sense. I calculate the cost per battery, but I never sacrifice quality just to save a few cents per cell.
Voltage Consistency Out of Package
Every CR2450 should read 3.0 volts fresh from the factory. The problem with some cheap brands is that you’ll get batteries reading 2.8 or 2.9 volts, which means they’re already partially depleted. I look for brands where buyers consistently report full voltage right out of the blister pack.
Child-Resistant and Safety Packaging
Coin cell batteries are a serious choking hazard for kids, so child-resistant packaging matters more than most people realize. I prioritize batteries that come in standards-based safety packaging that meets regulations. Some brands also advertise mercury-free construction, which is better for the environment when you dispose of them.
Leak-Proof Design
A leaking battery can destroy a check current price on Amazon key fob or a check current price on Amazon medical device. I look for batteries with leak-proof construction or corrosion-resistant seals. This is especially important if you’re putting batteries in devices you don’t use every day, like emergency thermometers or backup garage door openers.
My Shortcut Advice: Stick with Energizer or Panasonic if you want zero risk of dead-on-arrival batteries, and only try budget brands like PGSONIC or NICEBATT if you’re okay with slightly less long-term track record in exchange for a lower price.
Frequently Asked Questions
What is the best CR2450 battery for key fobs?
I recommend the Energizer 2450 Lithium Coin Battery for key fobs because it has a 12-year shelf life and a 4.8 star rating from over 6,300 reviews. Key fobs are something you use daily, so you need a battery that won’t fail at the worst time. The Energizer 2-pack is perfect if you just need to replace one fob, but the Energizer CR2450 6-pack is better if you have multiple vehicles.
How long do CR2450 batteries last in a car key fob?
Most CR2450 batteries will last between 1 and 3 years in a typical car key fob, depending on how often you use the remote start or proximity features. A high-quality battery like the Panasonic CR2450 or Energizer CR2450 will usually hit the 3-year mark. Cheap batteries might only last 6 to 12 months before you notice the range dropping.
Are cheap CR2450 batteries worth buying?
Some budget brands are worth it, but you have to be careful. The PGSONIC CR2450 5-pack has 22,468 reviews and a 4.6 star average, which tells me it’s reliable despite being cheaper than name brands. The problem is that truly unknown no-name brands often ship batteries that are already partially drained, so you save money but waste time dealing with dead cells.
What’s the difference between CR2450 and CR2032 batteries?
The main difference is size and capacity. A CR2450 is 24mm in diameter and 5.0mm thick, while a CR2032 is 20mm in diameter and 3.2mm thick. The CR2450 has more capacity — typically around 550 to 620 milliamp hours compared to about 225 for a CR2032 — so it lasts longer in devices that need more power. You cannot swap them because the CR2450 is thicker and won’t fit in CR2032 slots.
Can I use a CR2450 in a device that says CR2032?
No, you should not do this. The CR2450 is 1.8mm thicker than a CR2032, so it likely won’t fit in the battery compartment. Even if you manage to force it, the voltage is the same at 3 volts, but the extra thickness can damage the battery contacts or crack the device. Always check your device manual for the exact battery size it requires.
How do I know if a CR2450 battery is dead on arrival?
The easiest way is to use a multimeter to check the voltage before you install it. A fresh CR2450 should read at least 3.0 volts. If it reads 2.8 volts or lower, that battery is already partially depleted and will fail sooner than expected. I also look at Amazon reviews for patterns — if multiple buyers mention dead batteries, I skip that brand entirely.
Which CR2450 battery has the longest shelf life?
The PHILIPS CR2450 5-Pack has a 10-year shelf life, which is the longest I found on this list. The Energizer 2450 Lithium Coin Battery also has an impressive 12-year shelf life, making it the best option for long-term storage. Both are excellent if you want to stock up and not worry about batteries dying in the drawer.
What devices use CR2450 batteries?
CR2450 batteries are common in car key fobs, garage door openers, bathroom scales, digital thermometers, door and window sensors for security systems, and some fitness trackers. I’ve also seen them in MyQ garage door openers and certain medical devices like blood pressure monitors. Always check your device before buying because some brands use CR2032 instead.
My Final Verdict
After testing all nine options, the Energizer 2450 Lithium Coin Battery is my clear winner. It has the highest rating at 4.8 stars from 6,397 reviews, a 12-year shelf life that beats almost everything else, and the brand trust that comes with decades of battery manufacturing. The Panasonic CR2450 takes the runner-up spot for its child-safe packaging, and the PGSONIC CR2450 5-pack is the best budget choice if you want solid performance without paying a premium.
If you want zero risk of dead-on-arrival batteries and plan to keep spares in a drawer for years, buy the Energizer 2450. If you’re outfitting multiple devices and need to watch your spending, the PGSONIC 5-pack gives you reliable voltage at a fraction of the cost. Either way, skip the unknown brands with no reviews — the savings aren’t worth the frustration.
Best Overall: Energizer 2450 Lithium Coin Battery
- Energizer 2450 Lithium Coin Battery with child resistant packaging
- Delivers long-lasting, dependable performance in specialty devices like...
Buy this if you want the most reliable CR2450 battery with a 12-year shelf life and the highest customer satisfaction rating on the market. It’s the safest bet against dead-on-arrival cells.
Runner-Up: PGSONIC CR2450 3V Lithium Battery (5pcs)
- Grade AA batteries: 3 Volt, fresh with strong & reliable power, high energy...
- Long-lasting plus 5 years shelf-life: premium performance in the industry
Choose this 5-pack if you need a budget-friendly option that still delivers consistent voltage and has over 22,000 positive reviews backing it up.
Best Safety Pick: Panasonic CR2450 3.0 Volt Long Lasting Lithium Coin Cell Batteries
- LONG LASTING PERFORMANCE: Panasonic CR2450 3.V batteries are engineered to...
- CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic...
Pick this 2-pack if you need child-resistant packaging and want a trusted Japanese brand with a 4.8 star rating and a long history of quality coin cells.