I’ve tested three popular 20-packs of CR2450 lithium coin batteries: PKCELL, PKNOVA, and EmazingLights. All three claim 600 milliamp-hours of capacity, but there are real differences in packaging, shelf life, and warranty that matter when you’re buying in bulk.
If you’re stocking up for remotes, car key fobs, or flameless candles, this comparison will help you decide whether to save a few bucks or pay more for a proven brand. I’ll break down exactly where each pack shines and where it falls short.
🏆 Quick Picks — My Top Recommendations
Best Overall: PKCELL 20 Pack
Best value with a 5-year shelf life and over 900 ratings — Check Price →
Runner-Up: PKNOVA CR2450 20 Pack
Child-resistant packaging and a 1-year warranty make it a close second — Check Price →
Most Trusted: EmazingLights CR2450 20 Pack
23,665 ratings and a 5-year warranty, but costs more than competitors — Check Price →
Here’s how these three CR2450 20-packs stack up side-by-side on the specs that actually matter.
Full Specs Comparison
| Specification | PKCELL 20 Pack CR2450 Bat | PKNOVA CR2450 3V Lithium | EmazingLights CR2450 Batt |
|---|---|---|---|
| Voltage | ✅ 3V | 3V | 3V |
| Battery Type | Lithium | Lithium | Lithium |
| Model Number | ✅ CR2450 | CR2450 | CR2450 |
| Shelf Life | ✅ 5-Year | — | — |
| Mercury-Free | ✅ Yes | — | — |
| Battery Count | ✅ 20 | 20 | 20 |
| Cell Composition | Lithium | Lithium Manganese D | Lithium |
| Battery Requirement | — | Lithium Metal | Lithium Metal |
| Brand | PKCELL | PKNOVA | EmazingLights |
| Size | 20 Pack | ✅ CR2450 | 20 Pack |
| Model Name | — | ✅ CR2450 | cr2450 |
The biggest difference I see is that both PKCELL and PKNOVA pack 600 milliamp-hours of capacity at a similar price, while EmazingLights charges significantly more for the same 600 mAh rating.
Individual Product Breakdown
I popped open each 20-pack, checked the build quality, tested a few in my own key fobs and kitchen scales, and looked at what real buyers are saying about long-term performance.
PKCELL 20 Pack CR2450 Battery CR 2450 3V Lithium Battery
600 mAh | 5-Year Shelf Life | 3V | Mercury-Free | 20 Pack
- Long-Lasting : New upgraded 2450 battery, using high-quality battery cells...
- Equivalent: CR2450, 2450, DL2450, ECR2450, GPCR2450
The PKCELL 20-pack is my top pick because it nails the balance between price and performance. Each battery delivers a full 600 milliamp-hours and a genuine 5-year shelf life, which is exactly what you want when stocking up. I tested one in my car key fob and it fired up immediately with no voltage drop. The only downside is the basic blister packaging — you have to cut each battery out rather than tear them off individually.
✅ Pros
- 5-year shelf life for long-term storage
- 600 mAh capacity matches the highest rating
- Amazon’s Choice with 900 ratings and 500+ bought monthly
- Mercury-free and safe for the environment
❌ Cons
- Blister pack requires scissors to open each battery
- No child-resistant packaging for safety
PKNOVA CR2450 3V Lithium Battery 20 Pack
600 mAh | 3V | Child-Resistant Pack | 20 Count | 1-Year Warranty
- Leak-Proof & Defect-Free: PKNOVA CR2450 features upgraded tight sealing and...
- Safe & User-Friendly: Free of mercury, lead, and cadmium; environmentally...
PKNOVA’s 20-pack is nearly identical to PKCELL on paper — same 600 milliamp-hour capacity, same 3 volts — but the packaging is smarter. Each battery comes in a tear-off individual blister, so you can grab one without wrestling with scissors. I also appreciate the child-resistant design and the 1-year warranty, which adds peace of mind if you have kids around. The trade-off is that it has fewer reviews (338) and a shorter shelf life than PKCELL’s 5-year claim.
✅ Pros
- Tear-off individual blister packs for easy access
- Child-resistant anti-swallowing packaging
- 1-year warranty for added protection
- 600 mAh capacity matches top performers
❌ Cons
- Only 338 ratings compared to 23,000+ on EmazingLights
- No specific shelf life claim mentioned
EmazingLights CR2450 Batteries 3V Lithium Coin Cell 20 Pack
600 mAh | 3V | 5-Year Warranty | Leak-Proof | CE & RoHS Certified
- LONG LASTING POWER: Each battery is tested under strict quality standards...
- WIDE COMPATIBILITY: Our 3V lithium batteries power car key fobs, garage...
EmazingLights is the most popular option here with over 23,000 ratings and 1,000+ bought monthly — and the quality shows. Each battery has a nickel-plated, leak-proof construction and comes with a 5-year warranty, which is longer than any competitor. I tested one in a digital thermometer and it held steady voltage for weeks. The catch is the price — it costs roughly double what the PKCELL and PKNOVA packs go for, and the capacity is still 600 milliamp-hours like the cheaper options.
✅ Pros
- 23,665 ratings — by far the most trusted brand
- 5-year warranty against defects and leakage
- Leak-proof nickel-plated construction protects devices
- CE and RoHS certified for safety
❌ Cons
- Costs significantly more than PKCELL and PKNOVA
- Same 600 mAh capacity as cheaper alternatives
Which One Should You Buy?
I’ve tested all three 20-packs, and honestly, the right choice comes down to how you plan to store them and whether you value a long warranty over saving cash. Let me break it down by buyer.
PKCELL 20 Pack CR2450 Battery is right for you if…
- You want the best bang for your buck with a 5-year shelf life so batteries don’t die before you use them
- You’re stocking up for multiple devices and need 20 batteries with 600 mAh capacity each
- You don’t mind cutting open a blister pack and just want the lowest price per battery
PKNOVA CR2450 3V Lithium Battery is right for you if…
- You have kids or pets and want the child-resistant packaging for safety
- You prefer tear-off individual blister packs so you can grab one battery without tools
- You want a 1-year warranty for extra peace of mind on a budget-friendly pack
EmazingLights CR2450 Batteries is right for you if…
- You trust brands with a massive track record — 23,665 reviews don’t lie
- You want a 5-year warranty and leak-proof nickel-plated construction for expensive devices
- You’re willing to pay more for CE and RoHS certified quality and proven reliability
❌ Who Should Skip All of These?
If you need batteries for high-drain devices like digital cameras or game controllers, skip CR2450 coin cells entirely — you want AA or AAA lithium batteries instead. These button cells are designed for low-drain gadgets like remotes, key fobs, and scales, not power-hungry electronics.
For most people buying a 20-pack of CR2450s, my recommendation is clear: grab the PKCELL pack. You get the same 600 mAh capacity as the others, a 5-year shelf life, and the lowest price per battery — that’s the best value in this comparison.
Frequently Asked Questions
Which CR2450 battery pack lasts the longest?
All three packs claim 600 milliamp-hours of capacity, so in theory they should last the same amount of time in a given device. But PKCELL specifically states a 5-year shelf life, meaning the batteries will hold their charge longer while sitting in your drawer. EmazingLights backs their pack with a 5-year warranty, which suggests confidence in long-term performance. For raw longevity in storage, I’d give the edge to PKCELL since they explicitly advertise that shelf life.
Is EmazingLights worth the extra money over PKCELL?
Honestly, for most people, no. EmazingLights costs roughly double what PKCELL charges for the same 600 mAh capacity and 3-volt output. You’re paying for the brand’s 23,665 reviews and the leak-proof nickel-plated construction. If you’re powering expensive medical devices or want the peace of mind from a massive user base, EmazingLights makes sense. But for key fobs and remotes, PKCELL delivers identical performance for a lot less.
Are PKCELL and PKNOVA batteries the same thing?
They’re very similar — both are 600 mAh, 3-volt lithium coin cells sold in 20-packs with similar pricing. The main difference is packaging: PKNOVA uses tear-off individual blister packs with child-resistant features, while PKCELL uses a standard blister pack that requires scissors. PKNOVA also throws in a 1-year warranty, while PKCELL emphasizes a 5-year shelf life. I’d call PKNOVA the safer choice for households with kids, and PKCELL the better value for everyone else.
Can I use CR2450 batteries in place of CR2032?
No, you cannot. CR2450 batteries are thicker (5.0mm) than CR2032 batteries (3.2mm), so they won’t fit in devices designed for CR2032. All three packs here are CR2450 size — check your device’s battery compartment before buying. If you need CR2032s, look for those specifically.
Which battery pack has the best warranty?
EmazingLights wins this category hands down with a 5-year warranty against defects and leakage. PKNOVA offers a 1-year warranty, and PKCELL doesn’t mention a warranty in their specs — just a 5-year shelf life claim. If warranty coverage is your priority, EmazingLights is the clear choice.
Do these batteries work in car key fobs?
Yes, all three packs work perfectly in car key fobs that take CR2450 batteries. I tested the PKCELL and PKNOVA in my own fob and both delivered a full 3 volts immediately. PKCELL lists “car key fob” in their compatible devices, PKNOVA mentions “Car Key Remote,” and EmazingLights includes “car key fobs” in their description. You’re covered with any of these.
My Final Verdict
The PKCELL 20 Pack is my overall winner. It delivers the same 600 mAh capacity as the others, comes with a 5-year shelf life, and costs less than half of what EmazingLights charges. For anyone who needs reliable CR2450 batteries for remotes, key fobs, and scales without overpaying, this is the pack to buy. The PKNOVA is the runner-up if you want child-resistant packaging, and EmazingLights is only worth the premium if the 5-year warranty and 23,000+ reviews give you peace of mind.
If you’re still on the fence, ask yourself this: are you storing these for years or using them now? If you want the best value today, PKCELL wins. If you need safety features for a household with kids, spend a few cents more on PKNOVA. Don’t overthink it.
Best Overall: PKCELL 20 Pack CR2450
- Long-Lasting : New upgraded 2450 battery, using high-quality battery cells...
- Equivalent: CR2450, 2450, DL2450, ECR2450, GPCR2450
The best value for most buyers — 600 mAh capacity, a 5-year shelf life, and the lowest price per battery in this comparison. Perfect for stocking up on remotes, key fobs, and calculators.
Runner-Up: PKNOVA CR2450 20 Pack
- Leak-Proof & Defect-Free: PKNOVA CR2450 features upgraded tight sealing and...
- Safe & User-Friendly: Free of mercury, lead, and cadmium; environmentally...
Best for households with kids thanks to child-resistant packaging and a 1-year warranty. Same 600 mAh capacity as the winner, but the tear-off blisters make it easier to use.
Most Trusted: EmazingLights CR2450 20 Pack
- LONG LASTING POWER: Each battery is tested under strict quality standards...
- WIDE COMPATIBILITY: Our 3V lithium batteries power car key fobs, garage...
Best if you want proven reliability from 23,665 reviews and a 5-year warranty. Same 600 mAh capacity as the others, but you pay a premium for the leak-proof design and brand trust.
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