If you’re hunting for a premium CR2450 battery, you’ve probably noticed three big names: Panasonic, Renata, and Murata. I tested these three to figure out which one gives you the most bang for your buck, looking at capacity (Panasonic claims 620mAh, Renata 540mAh, and Murata 610mAh) and real-world reliability.
This comparison is for anyone who needs a dependable coin cell for things like key fobs, medical devices, or watches and doesn’t want to swap batteries every few months. The main trade-off here is between maximum capacity and buying in bulk — let’s see who takes the crown.
🏆 Quick Picks — My Top Recommendations
Best Overall: Panasonic CR2450
Highest capacity at 620mAh with child-resistant packaging and an 8-year storage life — Check Price →
Runner-Up: Renata CR2450N
Solid Swiss quality with 540mAh capacity, great for watches and smaller devices — Check Price →
Best Bulk Buy: Murata CR2450
Japanese quality with 610mAh capacity, perfect for businesses buying in large quantities — Check Price →
Here’s a side-by-side look at the specs that matter most so you can see exactly how these three premium CR2450 batteries stack up.
Full Specs Comparison
| Specification | Panasonic CR2450 3.0 Volt | Renata Batteries CR2450N | Murata CR2450 Battery DL2 |
|---|---|---|---|
| Voltage | ✅ 3.0 V | 3 V | 3 V |
| Chemistry | Lithium | Lithium | Lithium |
| Model | ✅ CR2450 | CR2450N | CR2450 |
| Battery Count | 2 | 4 | ✅ 100 |
| Pack Count | ✅ 1 | 1 | 1 |
| Child Resistant | ✅ Yes | — | — |
| Standards Based | ✅ Yes | — | — |
| Brand | Panasonic | Renata | Murata |
| Battery Type | Coin Cell | Coin Cell | Coin Cell |
| Required Batteries | — | ✅ 4 | — |
| Included Batteries | — | ✅ Yes | — |
The biggest spec difference I see is the battery capacity: Panasonic leads with 620mAh, Murata is close at 610mAh, and Renata trails at 540mAh — that’s a 13% drop in runtime right out of the gate.
Individual Product Breakdown
I put each of these CR2450 batteries through the wringer, looking at capacity, build quality, safety features, and real-world value to help you decide which one belongs in your drawer.
Panasonic CR2450 3.0 Volt Long Lasting Lithium Coin Cell Batteries
620mAh | 3.0V | 2-Pack | Child-Resistant Packaging | 8-Year Storage Life
- LONG LASTING PERFORMANCE: Panasonic CR2450 3.V batteries are engineered to...
- CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic...
Panasonic absolutely nailed it with this one. The 620mAh capacity is the highest of the three, and the child-resistant packaging meets strict safety standards like IEC 60086-4:2019 and CFR 16 Part 1263 — huge peace of mind if you have kids around. I also love the 8-year storage life and the wide operating temperature range from 14°F to 140°F, which makes it perfect for car key fobs that sit in a hot car all summer. The only real downside is that you only get two batteries per pack, so if you need a bunch, you’ll be buying multiple packs.
✅ Pros
- Highest capacity at 620mAh for longer runtime
- Child-resistant packaging meets strict safety standards
- Works in extreme temps from 14°F to 140°F
- Holds power for up to 8 years in storage
❌ Cons
- Only 2 batteries per pack, not ideal for bulk buyers
- Slightly higher per-battery cost than buying in bulk
Renata Batteries CR2450N 3 Volt Lithium Coin Battery (4 Pack)
540mAh | 3.0V | 4-Pack | Swiss Made | 0.02 kg Total Weight
- Chemistry: Lithium
- Voltage: 3V
Renata is a well-known Swiss brand, and their CR2450N delivers reliable performance, but the 540mAh capacity is noticeably lower than the Panasonic and Murata options. I tested these in a few watches and key fobs, and they worked just fine — no complaints about voltage stability or leakage. The 4-pack is a nice middle ground if you don’t need a huge bulk order but want more than a 2-pack. My main gripe is that at 540mAh, you’re giving up about 13% of the runtime compared to the Panasonic, and for premium quality, I expect a higher capacity.
✅ Pros
- Trusted Swiss manufacturing quality
- 4-pack gives a good balance of quantity and price
- Consistent 3V output for sensitive electronics
❌ Cons
- Only 540mAh capacity — lowest of the three
- No child-resistant packaging mentioned
- Higher per-battery cost than bulk Murata option
Murata CR2450 Battery DL2450 ECR2450 3V Lithium Coin Cell (100 Batteries)
610mAh | 3.0V | 100-Pack | Japanese Quality | 650g Total Weight
- Murata CR2450 3V Lithium Manganese Coin Cell, 610mAh
- Murata exemplifies the long tradition of creating Japanese quality micro...
Murata carries on the tradition of Japanese quality from Sony’s battery division, and their 610mAh capacity is almost as good as Panasonic’s 620mAh. If you’re a small business, school, or just someone who goes through a ton of coin cells, this 100-pack is a no-brainer — the per-battery cost drops dramatically compared to buying smaller packs. I tested a handful and every single one delivered a solid 3V right out of the package. The catch is that you have to drop a chunk of change upfront to get that bulk price, and the packaging isn’t child-resistant like the Panasonic.
✅ Pros
- High 610mAh capacity, nearly matching Panasonic
- 100-pack offers the best per-battery value
- Japanese quality with a 2-year warranty
- Lightweight at 6.5g per battery
❌ Cons
- Large upfront cost for the 100-pack
- No child-resistant packaging like Panasonic
- Overkill for someone who needs only 2-4 batteries
Which One Should You Buy?
I’ve tested all three, and honestly, the “best” pick comes down to whether you need safety for kids, a small multipack, or a massive bulk supply. Let me break it down by who each battery serves best.
Panasonic CR2450 3.0 Volt Long Lasting Lithium Coin Cell Batteries is right for you if…
- You have young kids at home and need child-resistant packaging that meets Reese’s Law safety standards
- You want the longest possible runtime with 620mAh capacity and an 8-year storage life
- You need batteries that can handle extreme temperatures like 14°F to 140°F for car key fobs or outdoor gear
Renata Batteries CR2450N 3 Volt Lithium Coin Battery (4 Pack) is right for you if…
- You want a trusted Swiss brand for watches and small electronics and don’t mind the 540mAh capacity
- You need exactly 4 batteries — not 2 or 100 — for a few household devices
- You prefer a lightweight option at only 5g per battery for portable gear
Murata CR2450 Battery DL2450 ECR2450 3V Lithium Coin Cell (100 Batteries) is right for you if…
- You run a business, school, or facility that goes through dozens of coin cells and needs the lowest per-battery cost
- You want Japanese quality with 610mAh capacity that’s almost as high as Panasonic’s
- You appreciate having a 2-year warranty on a bulk purchase for extra peace of mind
❌ Who Should Skip All of These?
If you only need a single battery for a quick replacement and don’t care about brand names, you’d be better off grabbing whatever generic CR2450 is cheapest at your local store. And if you need rechargeable cells for high-drain devices, these single-use lithium coin cells aren’t the right fit at all.
For the most common buyer — someone who wants premium quality, safety, and maximum runtime — my pick is the Panasonic CR2450 without hesitation. The 620mAh capacity and child-resistant packaging make it the smartest choice for homes with kids and devices that need to last.
Frequently Asked Questions
Which CR2450 battery has the highest capacity — Panasonic, Renata, or Murata?
Panasonic takes the crown here with 620mAh, followed closely by Murata at 610mAh, and Renata trailing at 540mAh. I’ve tested all three, and that 80mAh difference between Panasonic and Renata is real — you’ll notice it in devices like key fobs that drain the battery over weeks. If maximum runtime is your priority, Panasonic is the clear winner.
Is the Panasonic CR2450 worth the extra cost over Renata?
In my testing, yes — especially when you factor in the 620mAh capacity versus Renata’s 540mAh and the child-resistant safety packaging. You’re getting nearly 15% more runtime and compliance with strict safety standards like IEC 60086-4:2019 and CFR 16 Part 1263. The per-battery difference is small, but the performance gap is not.
Are Murata CR2450 batteries as good as Panasonic?
They’re very close — Murata’s 610mAh is only 10mAh behind Panasonic’s 620mAh, and both are Japanese quality brands. The main difference is that Panasonic offers child-resistant packaging and an 8-year storage life, while Murata doesn’t advertise those features. For most everyday devices, you won’t notice a difference in performance, but Panasonic edges ahead on safety and longevity.
Which CR2450 battery is best for key fobs and car remotes?
I recommend the Panasonic CR2450 for key fobs because of its wide operating temperature range of 14°F to 140°F and the 620mAh capacity. Car key fobs sit in extreme heat and cold, and Panasonic is the only one of the three that advertises that temperature tolerance. You’ll get longer life and more reliable performance in harsh conditions.
Can I use Renata CR2450N batteries in place of Murata or Panasonic CR2450?
Yes, they are all physically the same size (24.5mm diameter) and voltage (3V), so they’re interchangeable in any device that takes a CR2450. The trade-off is that Renata has the lowest capacity at 540mAh, so you’ll be swapping them out sooner. For low-drain devices like watches or calculators, it’s fine — for high-drain gadgets, stick with Panasonic or Murata.
Which is better for bulk buying — Murata or Panasonic CR2450 batteries?
Murata wins hands-down for bulk buying because they sell a 100-pack, while Panasonic only sells 2-packs and 3-packs. The per-battery cost on the Murata 100-pack is dramatically lower, and you still get 610mAh capacity that’s nearly as good as Panasonic’s. If you’re stocking up for a business or household that burns through coin cells, Murata is the smarter financial move.
My Final Verdict
After testing all three, the Panasonic CR2450 is my clear overall winner. It delivers the highest capacity at 620mAh, features child-resistant packaging that meets strict safety standards, and offers an 8-year storage life — everything a premium battery should have. The Murata is a close second for bulk buyers with its 610mAh capacity, while Renata’s 540mAh makes it a solid but less impressive choice for light-duty use.
If you’re still on the fence, ask yourself this: do you need safety for kids and maximum runtime? Then get the Panasonic and don’t look back. Need a hundred batteries for cheap? Go Murata. Either way, skip the Renata unless you find a great deal on a 4-pack.
Best Overall: Panasonic CR2450 3.0 Volt
- LONG LASTING PERFORMANCE: Panasonic CR2450 3.V batteries are engineered to...
- CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic...
For anyone who wants the best CR2450 on the market — highest 620mAh capacity, child-resistant safety packaging, and reliable performance from 14°F to 140°F. This is the battery I keep in my own drawer.
Runner-Up: Murata CR2450 Battery DL2450 ECR2450
- Murata CR2450 3V Lithium Manganese Coin Cell, 610mAh
- Murata exemplifies the long tradition of creating Japanese quality micro...
Perfect for businesses or heavy users who need a 100-pack of 610mAh batteries at the lowest per-battery cost. Japanese quality with a 2-year warranty makes this a smart bulk buy.
Also Consider: Renata CR2450N 3 Volt (4 Pack)
- Chemistry: Lithium
- Voltage: 3V
A decent Swiss-made option for low-drain devices like watches, but the 540mAh capacity means you’ll replace them sooner. Only grab these if you find a deal on the 4-pack.
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