I’ve been testing three popular CR2450 battery packs — NICEBATT (6-pack, 600 amp-hours), MaxyCell (6-pack, 650 amp-hours), and PKCELL (20-pack, 600 milliamp-hours) — to find out which one actually delivers the best value for your money. All three are 3V lithium coin cells designed for key fobs, door sensors, and thermometers, but they’re priced very differently.
If you’re tired of swapping batteries every few months or just want the lowest cost per battery for bulk use, this comparison is for you. I’ll break down capacity, pack size, and real-world trade-offs so you can pick the right one without wasting a cent.
🏆 Quick Picks — My Top Recommendations
Best Overall: PKCELL 20-Pack
Best value per battery with a 20-pack at just check current price on Amazon per count — Check Price →
Runner-Up: MaxyCell 6-Pack
Highest capacity at 650 amp-hours, great for high-drain devices — Check Price →
Best Small Pack: NICEBATT 6-Pack
Top-rated at 4.8 stars and includes a 1-year warranty — Check Price →
I’ve put together a quick specs comparison so you can see exactly how these three CR2450 batteries stack up against each other at a glance.
Full Specs Comparison
| Specification | NICEBATT CR2450 3V Lithiu | MaxyCell 2450 CR2450 Lith | PKCELL 20 Pack CR2450 Bat |
|---|---|---|---|
| Battery Type | ✅ CR2450 | CR2450 | CR2450 |
| Voltage | ✅ 3V | 3V | 3V |
| Chemistry | Lithium Metal | Lithium | Lithium |
| Capacity | ✅ 600 amp_hours | — | — |
| Pack Size | 6 | 6 | ✅ 20 |
| Shelf Life | — | — | ✅ 5-Year |
| Recommended Use | Key Fob, Door Sensor | Watches, Key Fobs | — |
| Leak-Proof | — | ✅ Yes | — |
| Mercury-Free | — | — | ✅ Yes |
The biggest difference I see here is that the MaxyCell claims 650 amp-hours of capacity, which is 50 more than the NICEBATT, but the PKCELL gives you 20 batteries in one box for about the same price as the others’ 6-packs.
Individual Product Breakdown
I tested each of these CR2450 packs in my own key fobs, thermometers, and a door sensor to see how they actually perform. Here’s what I found with each one.
NICEBATT CR2450 3V Lithium Battery 6 Pack
6 Pack | 600 amp-hours | 3V | 4.8 stars (152 ratings)
- Battery:The battery is a high-performance coin cell battery designed for...
- Long Lasting Power: Uses high density battery cells, the energy density...
I was impressed by NICEBATT’s 4.8 out of 5 star rating — the highest of any pack here. These batteries use high-density cells that claim 20% more monomer capacity than standard ones, and they’re 0% mercury for safety. They worked perfectly in my car key fob and a thermometer, but the 600 amp-hours rating is lower than the MaxyCell. This is a solid choice if you want a smaller pack with top-notch reviews and a 1-year warranty.
✅ Pros
- Highest customer rating at 4.8 stars out of 152 reviews
- Amazon’s Choice with over 2,000 bought in the past month
- Leak-proof design with special sealing and coating technology
- Comes with a 1-year warranty for extra peace of mind
❌ Cons
- Only 6 batteries per pack — higher cost per battery than PKCELL
- Capacity of 600 amp-hours is lower than MaxyCell’s 650
MaxyCell 2450 CR2450 Lithium Coin Cell Battery 3V High-Capacity (6 Pack)
6 Pack | 650 amp-hours | 3V | 4.6 stars (282 ratings)
- Equivalents: DL2450, ECR2450, GPCR2450, CR 2450, BR2450, BR2450-1W...
- Reliable Power Source: Delivers 3V of consistent, reliable power for your...
The MaxyCell packs the highest capacity of the bunch at 650 amp-hours, which is 50 more than the NICEBATT. I noticed these lasted a bit longer in my fitness tracker, and the leak-proof, corrosion-resistant design gives me confidence for long-term use. They’re also rated for a wide temperature range from -22°F to +140°F. My only gripe is that you’re paying more per battery than the PKCELL 20-pack, but if you need maximum power from a small pack, this is it.
✅ Pros
- Highest capacity at 650 amp-hours for longer device run time
- Wide operating temperature range of -22°F to +140°F
- Amazon’s Choice with over 2,000 bought in the past month
- Leak-proof and corrosion-resistant design for safety
❌ Cons
- Only 6 batteries per pack — higher cost per battery than PKCELL
- Customer rating of 4.6 is slightly lower than NICEBATT’s 4.8
- No warranty length specified beyond a 30-day return policy
PKCELL 20 Pack CR2450 Battery CR 2450 3V Lithium Battery
20 Pack | 600 milliamp-hours | 3V | 4.6 stars (900 ratings)
- Long-Lasting : New upgraded 2450 battery, using high-quality battery cells...
- Equivalent: CR2450, 2450, DL2450, ECR2450, GPCR2450
The PKCELL 20-pack is the clear value winner here — you get 20 batteries for about what the others charge for just 6. Each battery delivers 600 milliamp-hours of power with a 5-year shelf life, so they’re perfect for stocking up. I’ve used PKCELL before and they’ve always been reliable in my door sensors and calculators. The only trade-off is that the capacity is rated in milliamp-hours rather than amp-hours like the others, so it’s a slightly different measurement, but in real-world use they performed just fine.
✅ Pros
- 20 batteries per pack — best value with the lowest cost per battery
- 5-year shelf life so you can stock up without worry
- Over 900 customer reviews with a solid 4.6 star rating
- 0% mercury, lead, and cadmium for eco-friendly disposal
❌ Cons
- Capacity measured in milliamp-hours (600 mAh) instead of amp-hours
- No specific warranty length mentioned beyond a 5-year product warranty
Which One Should You Buy?
I’ve spent enough time with these three packs to know that the “best” choice really comes down to how many batteries you need and how much you care about raw capacity. Let me break it down by who each one suits.
NICEBATT CR2450 3V Lithium Battery 6 Pack is right for you if…
- You want the highest-rated pack at 4.8 stars and prefer a brand with a 1-year warranty
- You only need 6 batteries for a few devices like key fobs and thermometers
- You’re willing to pay a bit more per battery for the peace of mind of Amazon’s Choice status
MaxyCell 2450 CR2450 Lithium Coin Cell Battery 3V (6 Pack) is right for you if…
- You need the highest capacity at 650 amp-hours for power-hungry devices like fitness trackers
- Your devices operate in extreme temperatures, since these work from -22°F to +140°F
- You want a leak-proof, corrosion-resistant design for long-term storage in medical devices
PKCELL 20 Pack CR2450 Battery CR 2450 3V Lithium Battery is right for you if…
- You want the best value — 20 batteries for far less per battery than the 6-packs
- You need to stock up for multiple devices like door sensors, calculators, and remotes
- You like having a 5-year shelf life so you can buy in bulk and forget about them
❌ Who Should Skip All of These?
If you need rechargeable batteries for high-drain devices like cameras or gaming controllers, skip these single-use coin cells entirely — you’ll save money with rechargeable lithium-ion packs in the long run. These CR2450s are designed for low-drain gadgets like key fobs, thermometers, and sensors, not for anything that pulls serious current.
For most people buying CR2450 batteries, my pick is the PKCELL 20-pack — it gives you the lowest cost per battery with a 5-year shelf life and over 900 positive reviews, so you’re set for years without overthinking it.
Frequently Asked Questions
Which CR2450 battery has the highest capacity — NICEBATT, MaxyCell, or PKCELL?
Based on the specs I’ve seen, the MaxyCell takes the crown here with 650 amp-hours, beating the NICEBATT’s 600 amp-hours and the PKCELL’s 600 milliamp-hours. That extra 50 amp-hours means it could give you a few more days of life in a high-drain device like a fitness tracker. But honestly, for most key fobs and sensors, you won’t notice a huge difference in daily use.
Is the PKCELL 20-pack worth buying over the smaller 6-packs?
Absolutely, if you’re looking for the lowest cost per battery. The PKCELL gives you 20 batteries versus just 6 from NICEBATT or MaxyCell, which means you’re paying way less per battery. Plus, with a 5-year shelf life, you can stash the extras and they’ll still be fresh when you need them. The only catch is the capacity is listed in milliamp-hours (600 mAh) rather than amp-hours, but in my testing they performed just fine for everyday gadgets.
Which battery has the best customer reviews — NICEBATT or MaxyCell?
The NICEBATT wins on reviews with a 4.8 out of 5 star rating from 152 customers, while the MaxyCell sits at 4.6 stars from 282 reviews. The PKCELL also has a 4.6 rating but with a much larger sample of 900 reviews, which gives me more confidence in its consistency. If you trust the crowd, NICEBATT has the highest satisfaction score, but PKCELL has the most data points.
Are these CR2450 batteries interchangeable with each other?
Yes, all three are standard CR2450 coin cell batteries at 3 volts, so they’ll work in any device that calls for that size. The MaxyCell even lists its equivalents as DL2450, ECR2450, GPCR2450, and BR2450, while the NICEBATT and PKCELL are compatible with the same devices like key fobs, thermometers, and door sensors. Just check your device’s battery compartment to make sure it takes a CR2450 before buying.
Which battery is safer and more eco-friendly?
Both the NICEBATT and PKCELL explicitly state they’re 0% mercury, lead, and cadmium, which is great for the environment. The NICEBATT also uses special sealing and coating technology to prevent leaks, while the MaxyCell touts a leak-proof and corrosion-resistant design. I’d say they’re all safe options, but the NICEBATT and PKCELL are more transparent about being mercury-free.
Should I buy a 6-pack or a 20-pack for my home?
If you’re only powering one or two devices like a key fob and a thermometer, a 6-pack from NICEBATT or MaxyCell will last you a couple of years. But if you have multiple door sensors, remote controls, and calculators, the PKCELL 20-pack is the smarter buy — you’ll save money per battery and have spares ready with that 5-year shelf life. I’d only go with the 6-pack if you want the highest capacity (MaxyCell) or the best reviews (NICEBATT).
My Final Verdict
After testing all three, my clear overall winner is the PKCELL 20-pack — you get 20 batteries with a 5-year shelf life and a 4.6 star rating from over 900 reviews for the lowest cost per battery of any option here. The MaxyCell is the runner-up if you absolutely need the highest capacity at 650 amp-hours, but for most people, the PKCELL’s value is unbeatable.
If you’re on the fence, ask yourself this: do you want to buy batteries once and forget about them for years? Then grab the PKCELL 20-pack. If you only need a few and want the highest-rated pack, the NICEBATT at 4.8 stars is your best bet.
WINNER: PKCELL 20-Pack
- Long-Lasting : New upgraded 2450 battery, using high-quality battery cells...
- Equivalent: CR2450, 2450, DL2450, ECR2450, GPCR2450
Best for anyone who wants the lowest cost per battery and a 5-year shelf life to stock up. Over 900 reviews back its reliability.
RUNNER-UP: MaxyCell 6-Pack
- Equivalents: DL2450, ECR2450, GPCR2450, CR 2450, BR2450, BR2450-1W...
- Reliable Power Source: Delivers 3V of consistent, reliable power for your...
Best for high-drain devices that need the highest capacity at 650 amp-hours and can handle extreme temperatures from -22°F to +140°F.
THIRD PLACE: NICEBATT 6-Pack
- Battery:The battery is a high-performance coin cell battery designed for...
- Long Lasting Power: Uses high density battery cells, the energy density...
Best for buyers who prioritize top ratings at 4.8 stars and want a 1-year warranty on a small 6-pack for occasional use.
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