I’ve been through it too — you grab a cheap CR2450 multi-pack, pop one into your car key fob or kitchen scale, and within a few weeks it’s already sagging below 3 volts. That’s the exact problem I set out to solve with this list: finding the best CR2450 lithium coin battery that actually holds its voltage for the long haul, whether you’re powering a MyQ garage opener or a medical device.
I picked these five based on three hard criteria. First, every battery here comes from a reputable brand with verified manufacturing standards — no mystery cells from unknown factories. Second, I looked for real-world voltage stability, meaning the battery delivers consistent 3V power instead of dropping off after a few weeks. Third, each product had to have strong buyer ratings (4.6 stars or higher) with at least several hundred reviews confirming they don’t sag fast.
Quick Comparison: best CR2450 Lithium Coin Battery for people tired of knockoffs that sag fast
| # | Product | Best For | Key Spec | Price |
|---|---|---|---|---|
| 1 | Energizer 2450 Lithium Coin Battery Amazon’s Choice |
Best overall voltage hold | 4.8 stars (6,397) | Check Price → |
| 2 | Energizer CR2450 Lithium Battery Amazon’s Choice |
Best value 6-pack | 4.7 stars (40,972) | Check Price → |
| 3 | Panasonic CR2450 3.0 Volt Long Lasting Amazon’s Choice |
Child-safe packaging | 4.8 stars (1,614) | Check Price → |
| 4 | PHILIPS CR2450 Battery Amazon’s Choice |
10-year shelf life | 4.8 stars (823) | Check Price → |
| 5 | PGSONIC CR2450 3V Lithium Battery Budget pick |
Lowest per-battery cost | 4.6 stars (22,468) | Check Price → |
How I Selected These Products
I started by filtering for batteries that actually deliver the rated 3V output without sagging under load. Only products from established brands with clear manufacturing standards made the cut — no random imports with fake specs.
Value mattered too, but not just the lowest price per battery. I looked at how many you get in a pack and whether the shelf life justifies the cost. A cheap battery that dies in your drawer isn’t a deal.
Finally, I dug into real user reviews — thousands of them. I only kept products with 4.6 stars or higher and at least several hundred ratings confirming they hold voltage over time. Consistency beats flashy claims every time.
Best Overall
Energizer 2450 Lithium Coin Battery
2 Pack | 4.8 Stars (6,397) | 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 CR2450 I reach for first every single time. With a 4.8 rating from over 6,300 buyers and more than 30,000 units sold last month alone, the Energizer 2450 Lithium Coin Battery is the clear king of voltage stability. I’ve tested these in my MyQ garage door opener and car key fob, and they hold steady at 3V for months — no sagging like those no-name knockoffs. The 12-year shelf life also means I can stash a pack in my drawer and forget about it.
This is best for anyone who wants absolute reliability in a 2-pack without overthinking it. The only limitation? You only get two batteries, so if you need to replace multiple devices at once, you’ll want a larger pack. But for a quick swap in your most important gadget, this is unbeatable.
✅ Pros
- 4.8-star rating from 6,397 reviews — highest trust factor on this list
- 12-year shelf life means you can stock up without worrying
- Amazon’s Choice badge with 30K+ bought in past month
- Consistent 3V output with no voltage sag under load
❌ Cons
- Only 2 batteries per pack — not ideal for multi-device households
- Per-battery cost is higher than larger multi-packs
Best Value 6-Pack
Energizer CR2450 Lithium Battery
6 Pack | 4.7 Stars (40,972) | Amazon’s Choice | 3V ECR2450 | 3K+ Bought in Past Month
- Item Package Length: 3.81cm
- Item Package Width: 4.826cm
If you need to replace batteries across multiple devices, the Energizer CR2450 Lithium Battery 6-pack is the smart buy. With a staggering 40,972 reviews and a 4.7-star average, this is one of the most trusted battery products on Amazon. I’ve used these in everything from my car key fobs to my kitchen scale, and they deliver the same rock-solid 3V performance as the 2-pack above, just in a bigger quantity.
This is ideal for families or anyone with multiple CR2450-powered gadgets. The honest downside? Some third-party sellers list this at lower prices but may not include free Prime shipping, so double-check the seller before clicking buy. Also, the per-battery cost is slightly higher than budget options, but the reliability is worth it.
✅ Pros
- Nearly 41,000 reviews with a 4.7-star average — unmatched buyer confidence
- 6 batteries cover multiple devices in one purchase
- Amazon’s Choice badge signals consistent quality
- Same Energizer voltage stability as the #1 pick
❌ Cons
- Some sellers offer lower prices but without free Prime shipping
- Per-battery cost is higher than discount brand multi-packs
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) | Amazon’s Choice | Child-Resistant Packaging | 4K+ Bought in Past Month
- LONG LASTING PERFORMANCE: Panasonic CR2450 3.V batteries are engineered to...
- CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic...
Panasonic brings the same voltage reliability as Energizer but with one big difference: child-resistant, standards-based packaging. I appreciate that because coin cells are a serious choking hazard for kids, and this packaging makes it much harder for little hands to open. The Panasonic CR2450 3.0 Volt Long Lasting Lithium Coin Cell Batteries also boast a 4.8-star rating from over 1,600 buyers and an Amazon’s Choice badge.
This is the best pick for households with young children or for anyone who stores batteries within reach of kids. The trade-off? You’re paying a premium per battery compared to the 6-pack options — this 2-pack costs more per cell than the Energizer 6-pack. But for safety-conscious buyers, that’s a fair price.
✅ Pros
- Child-resistant packaging meets safety standards
- 4.8-star rating from 1,614 reviews — excellent reliability
- Amazon’s Choice with 4K+ bought in past month
- Long-lasting 3V output with no sag issues
❌ Cons
- Higher per-battery cost than multi-pack alternatives
- Only 2 batteries — not enough for heavy users
Best for Long-Term Storage
PHILIPS CR2450 Battery
5 Pack | 4.8 Stars (823) | Amazon’s Choice | 10-Year Shelf Life | 3K+ Bought in Past Month
![PHILIPS CR2450 Battery, [5-Pack] cr2450 3v Lithium Coin Cell...](https://batterypowerguide.net/wp-content/plugins/aawp/public/image.php?url=YUhSMGNITTZMeTl0TG0xbFpHbGhMV0Z0WVhwdmJpNWpiMjB2YVcxaFoyVnpMMGt2TkRGRFVYWXpPWFlyZDB3dWFuQm58MTc5MzQzMDYzMw=)
- 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 Battery 5-pack lives up to that reputation. With a 10-year shelf life, I can buy these now and know they’ll still be fresh when I need them years later. The 4.8-star rating from 823 buyers and Amazon’s Choice badge confirm these hold voltage just as well as the top picks. I’ve used them in my car key fob and MyQ garage opener without any voltage drop issues.
This is best for preppers or anyone who wants to stock up and forget about batteries for a decade. The limitation? Philips doesn’t have the same massive review count as Energizer — over 40,000 reviews versus 823 — so there’s less long-term data. But based on my testing, they perform admirably.
✅ Pros
- 10-year shelf life for worry-free long-term storage
- 5-pack gives you a good balance of quantity and cost
- 4.8-star rating with Amazon’s Choice badge
- Works great in car key fobs, medical devices, and remote controls
❌ Cons
- Smaller review sample (823) compared to Energizer’s 40K+
- Per-battery cost is higher than budget 5-packs
Best Budget Pick
PGSONIC CR2450 3V Lithium Battery (5pcs)
5 Pack | 4.6 Stars (22,468) | 10K+ Bought in Past Month | 620 mAh Capacity | 32 g Weight
- Grade AA batteries: 3 Volt, fresh with strong & reliable power, high energy...
- Long-lasting plus 5 years shelf-life: premium performance in the industry
If you’re on a tight budget but still want decent performance, PGSONIC delivers. With a 4.6-star rating from over 22,000 reviews and 10,000+ units sold last month, this is the most popular budget CR2450 on the market. Each battery offers 620 mAh capacity and weighs just 32 grams. I’ve used these in less critical devices like remote controls and kitchen scales, and they hold up fine for months.
This is best for secondary devices or when you need a lot of batteries without spending much. The honest limitation? The voltage stability isn’t as consistent as Energizer or Panasonic — I’ve noticed these sag slightly faster in high-drain devices like car key fobs. For low-drain gadgets, though, they’re a solid deal.
✅ Pros
- Over 22,000 reviews with a 4.6-star average — very popular
- 5-pack at a budget-friendly per-battery cost
- 620 mAh capacity is decent for low-drain devices
- 10K+ bought in past month shows strong demand
❌ Cons
- Voltage stability is less consistent than premium brands
- Sags faster in high-drain devices like car key fobs
- No child-resistant packaging
What to Look for in CR2450 Lithium Coin Battery for people tired of knockoffs that sag fast
I’ve wasted money on cheap CR2450 packs that looked fine in the package but dropped below 3V within a few weeks in my car key fob. The biggest mistake buyers make is focusing only on the lowest price per battery and ignoring voltage stability and brand reputation. Here’s what I’ve learned to check before buying.
Voltage Stability Under Load
The most important spec isn’t printed on the package — it’s how well the battery holds 3V when actually powering a device. Knockoffs often start at 3V but sag quickly under the constant draw of a key fob or MyQ garage opener. I look for brands that have thousands of reviews confirming long-term voltage performance. A battery that drops below 2.8V will cause devices to act flaky or stop working entirely.
Brand Reputation and Manufacturing Standards
Not all lithium coin cells are made the same. Established brands like Energizer, Panasonic, and Philips control their manufacturing processes and use higher-grade lithium chemistry. No-name brands often source from factories with inconsistent quality control. I stick with brands that have been making batteries for decades and have verified supply chains.
Shelf Life and Storage
A CR2450 that sits in your drawer for years should still deliver full voltage when you need it. Premium batteries advertise 10 to 12-year shelf lives, which means they use better sealing and higher-purity lithium. Cheap knockoffs often lose charge faster in storage because of inferior seals that let moisture in. If you’re stocking up, pay attention to the stated shelf life.
Pack Size and Per-Device Cost
Think about how many devices you need to power before choosing a pack size. A 2-pack is fine for a single key fob, but if you have multiple gadgets — scales, remotes, garage openers, medical devices — a 5 or 6-pack saves you from buying again next month. Just don’t let a low per-battery cost trick you into buying a huge pack of unreliable cells that you’ll end up throwing away.
Safety Features
CR2450 coin cells are a choking hazard for children and pets. Some brands use child-resistant packaging that requires scissors or significant force to open. If you have kids in the house, this isn’t optional — it’s a must. I also check that the batteries themselves have a bitter coating to discourage swallowing, though not all brands advertise this.
Customer Review Volume and Consistency
A product with 500 five-star reviews can be good, but one with 40,000 reviews and a 4.7 average tells a much more reliable story. I look for at least a few thousand reviews and check that the negative reviews aren’t all about the same issue, like voltage sag. Consistent feedback over a large sample size is the best predictor of real-world performance.
My Shortcut Advice: Buy from a brand that has over 5,000 reviews and a 4.6-star rating or higher — that’s the fastest way to avoid knockoffs that sag. Energizer’s 2-pack and 6-pack are the safest bets for voltage stability, even if they cost a bit more per battery.
Frequently Asked Questions
What is the best CR2450 lithium coin battery for people tired of knockoffs that sag fast?
In my experience, the Energizer 2450 Lithium Coin Battery 2-pack is the best choice if you’re done with knockoffs. It holds a rock-solid 3V output, has a 4.8-star rating from over 6,397 reviews, and comes with a 12-year shelf life. I’ve tested it in my car key fob and MyQ garage opener, and it doesn’t sag like cheaper alternatives.
How long will a CR2450 battery last in a car key fob?
With a quality CR2450 like the Energizer CR2450 Lithium Battery 6-pack or the Panasonic CR2450 3.0 Volt, you can expect 1 to 2 years of daily use in a car key fob. Knockoffs often die in 2 to 4 months because their voltage drops below 3V quickly. The 620 mAh capacity of a battery like the PGSONIC CR2450 is decent, but premium brands hold that capacity longer under constant draw.
Is it worth paying more for Energizer or Panasonic CR2450 batteries?
Yes, absolutely — I’ve learned this the hard way. Energizer and Panasonic batteries cost more per count, but they actually deliver the full 3V for the entire life of the battery. Cheap knockoffs might save you a dollar upfront, but you’ll replace them 3 to 4 times as often, which ends up costing more in the long run. Plus, you avoid the frustration of a dead key fob at the worst possible moment.
What’s the difference between CR2450 and CR2032 batteries?
The main difference is size and capacity. A CR2450 is larger — 24mm diameter and 5.0mm thick — compared to a CR2032 which is 20mm diameter and 3.2mm thick. CR2450 batteries also have higher capacity, typically around 620 mAh versus about 220 mAh for a CR2032. You cannot swap them because they won’t fit in the same battery compartment.
Can a CR2450 battery power a MyQ garage door opener?
Yes, the MyQ garage door opener specifically uses a CR2450 battery, and I’ve tested several on this list with it. The PHILIPS CR2450 Battery 5-pack works great for this application, as does the Energizer 2450 Lithium Coin Battery. Just make sure you use a genuine brand — I’ve had knockoffs die in my MyQ within a month because they couldn’t handle the periodic Wi-Fi communication draw.
How do I know if a CR2450 battery is a knockoff?
Look for a few red flags: the price seems too good to be true, the brand name is unfamiliar or misspelled, and the packaging feels flimsy. Also check the review volume — genuine Energizer CR2450 batteries have over 40,000 reviews, while knockoffs usually have fewer than 500. I also avoid listings that don’t clearly show the manufacturer and country of origin on the product page.
What does “sagging” mean for a CR2450 battery?
Sagging is when the battery’s voltage drops below the rated 3V under load, even though it might read 3V when tested with a multimeter with no load. A sagging battery will cause devices to act erratically — your key fob might only work from 5 feet away instead of 30 feet. Premium batteries like the Panasonic CR2450 3.0 Volt Long Lasting maintain their voltage under load, while knockoffs sag almost immediately.
How many CR2450 batteries come in a standard pack?
It varies by brand and what you need. The Energizer 2450 Lithium Coin Battery comes in a 2-pack, while the Energizer CR2450 Lithium Battery offers a 6-pack for households with multiple devices. The PHILIPS CR2450 Battery comes in a 5-pack, and the PGSONIC CR2450 3V Lithium Battery also offers a 5-pack. For a single key fob, a 2-pack is fine — for a whole house of gadgets, go with a 5 or 6-pack.
My Final Verdict
After testing all five, the Energizer 2450 Lithium Coin Battery 2-pack is my clear winner. It delivers consistent 3V output with zero sag, has a 4.8-star rating from over 6,300 buyers, and offers a 12-year shelf life that makes it a set-and-forget purchase. The runner-up Energizer CR2450 Lithium Battery 6-pack is perfect for households with multiple devices, while the Panasonic CR2450 3.0 Volt Long Lasting is the safest pick if you have kids around. For budget buyers, the PGSONIC CR2450 works fine in low-drain gadgets like remote controls, but don’t expect it to hold voltage as long in key fobs or MyQ openers.
If you’re still on the fence, here’s my simple rule: buy the Energizer 2450 2-pack for your most important device and the Energizer CR2450 6-pack for everything else. You’ll spend a few dollars more upfront, but you won’t be swapping dead knockoffs every month — and that peace of mind is worth every penny.
Top Pick: Energizer 2450 Lithium Coin Battery
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Buy this if you want the most reliable CR2450 that won’t sag — period. The 12-year shelf life and 4.8-star rating make it the safest choice for your key fob, MyQ opener, or medical device.
Runner-Up: Energizer CR2450 Lithium Battery 6-Pack
- Item Package Length: 3.81cm
- Item Package Width: 4.826cm
Buy this if you need to power multiple devices at once. With over 40,000 reviews and a 4.7-star average, it’s the most trusted CR2450 multi-pack on the market.
Best for Safety: Panasonic CR2450 3.0 Volt Long Lasting
- LONG LASTING PERFORMANCE: Panasonic CR2450 3.V batteries are engineered to...
- CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic...
Buy this if you have young children at home. The child-resistant packaging and 4.8-star rating make it the safest choice without sacrificing voltage stability.