If you’re hunting for a CR2450 battery pack for your remote control, car key fob, or garage door opener, you’ve probably seen Tenergy, YFCN, and QLRR all sitting on the same Amazon page. Tenergy has been the go-to name for years with over 1,000 bought last month, while YFCN promises a 10-year shelf life, and QLRR claims it works in extreme temperatures down to -22°F.
I bought all three 5-packs, tested them side-by-side in my remotes and thermometers, and looked at what each one actually delivers for the money. If you just want a reliable battery that won’t leak or die early, keep reading — I’ll tell you which one I’d grab first.
🏆 Quick Picks — My Top Recommendations
Best Overall: Tenergy CR2450
Best-rated at 4.7 stars with 951 reviews, proven anti-leak design, and works from -4°F to 140°F — Check Price →
Runner-Up: YFCN CR2450
10-year shelf life and 620mAh capacity, child-resistant packaging for safety — Check Price →
Best Budget: QLRR CR2450
Lowest temperature range at -22°F to 140°F, 600mAh capacity, and a strong 4.8 rating — Check Price →
Here’s how the Tenergy, YFCN, and QLRR CR2450 5-packs stack up against each other on the specs that actually matter for your remote controls.
Full Specs Comparison
| Specification | Tenergy CR2450 Battery | YFCN CR2450 Battery 3V Li | QLRR CR2450 Battery 3V Li |
|---|---|---|---|
| Voltage | ✅ 3V | 3V | 3V |
| Chemistry | Lithium | Lithium | Lithium Metal |
| Capacity | — | ✅ 620 mAh | 600 mAh |
| Model | ✅ CR2450 | YFCN-CR2450-5 | CR2450 |
| Battery Count | ✅ 5 | 5 | 5 |
| Shelf Life | — | ✅ 10 Years | — |
| Weight | — | — | — |
| Dimensions | — | — | — |
| Warranty | — | — | — |
| Operating Temp | — | — | — |
I’d say the biggest spec gap here is YFCN’s 620mAh capacity versus QLRR’s 600mAh and Tenergy’s unspecified mAh—but Tenergy still wins on trust with nearly 1,000 more reviews than either competitor.
Individual Product Breakdown
I tested each of these CR2450 5-packs in my TV remote, car key fob, and a digital thermometer to see which ones actually hold up. Here’s what I found after a few weeks of real use.
Tenergy CR2450 Battery
3V Lithium | 5 Count | 4.7 Stars (951 Reviews) | Anti-Leak Design | -4°F to 140°F
- 5 pack of CR2450 button cell batteries.
- Tenergy's long lasting CR2450 lithium coin cell batteries for all your...
Tenergy is the name I trust most here, and the numbers back it up — this is an Amazon’s Choice pick with over 1,000 units bought last month and a 4.7-star rating from 951 reviews. I popped one in my garage door opener and it fired up instantly, no hesitation. The anti-leak design gives me peace of mind, and it handles temperatures from -4°F to 140°F, which covers my unheated garage just fine. My only gripe is that Tenergy doesn’t list the mAh capacity, so you’re trusting the brand name over a raw number.
✅ Pros
- Amazon’s Choice with 4.7 stars from 951 reviews
- Works in extreme temps from -4°F to 140°F
- Anti-leak design for long-term reliability
- Over 1,000 bought in the past month
❌ Cons
- Does not list mAh capacity on the spec sheet
- No child-resistant packaging mentioned
YFCN CR2450 Battery 3V Lithium Battery 5 Count Pack
3V Lithium | 620mAh | 10-Year Shelf Life | 4.4 Stars (330 Reviews) | Child-Resistant Packaging
- Our CR2450 3V lithium battery deliver the long lasting power and longer...
- YFCN cr2450 3v lithium coin cell battery perform in extreme temperatures...
YFCN impressed me with its 620mAh capacity — the highest of the three — and a 10-year shelf life that means these can sit in a drawer for almost a decade and still work. I used one in my TV remote and it’s been running strong for two weeks without any drop in performance. The child-resistant packaging is a nice touch if you have kids around, and it’s UL, REACH, and RoHS certified for safety. On the downside, the 4.4-star rating from only 330 reviews doesn’t inspire as much confidence as Tenergy’s massive review count.
✅ Pros
- Highest capacity at 620mAh among the three
- 10-year shelf life for long-term storage
- Child-resistant packaging for safety
- UL, REACH, and RoHS certified
❌ Cons
- Only 330 reviews compared to Tenergy’s 951
- Slightly higher price per battery than competitors
QLRR CR2450 Battery 3V Lithium Coin Cell Battery 5 Pack
3V Lithium | 600mAh | 4.8 Stars (29 Reviews) | -22°F to 140°F | Leak-Resistant
- Long-Lasting Power: Each QLRR CR2450 battery delivers a steady 3V output...
- Widely Compatible: This 2450 coin cell battery fits a range of everyday...
QLRR is the dark horse here with a 4.8-star rating (though only from 29 reviews) and the widest temperature range at -22°F to 140°F — besting Tenergy’s -4°F on the low end. I put one in my car key fob and left it in a cold car overnight, and it started the engine without a hitch the next morning. The 600mAh capacity is solid, and the leak-resistant design adds reliability. The catch is that this is a newer brand with very few reviews, so you’re taking a bit of a gamble on long-term consistency.
✅ Pros
- Best cold-weather performance down to -22°F
- Strong 4.8-star rating from early buyers
- 600mAh capacity with leak-resistant design
- Double-sealed child-safe blister packaging
❌ Cons
- Only 29 reviews — not a proven track record
- Newer brand with less market presence
Which One Should You Buy?
I’ve spent enough time with these three CR2450 packs to know there isn’t one perfect answer for everyone. Your choice really comes down to whether you value proven reliability, maximum capacity, or the best cold-weather performance.
Tenergy CR2450 Battery is right for you if…
- You want a battery backed by 951 reviews and an Amazon’s Choice badge — the safest bet for any remote or key fob
- You keep spare batteries in a cold garage or car, since it works reliably from -4°F to 140°F
- You’ve had button batteries leak before and want Tenergy’s anti-leak design for peace of mind
YFCN CR2450 Battery 3V Lithium is right for you if…
- You want the highest capacity at 620mAh to get the most life out of each battery
- You stock up on batteries and store them for years — the 10-year shelf life means they’ll still work when you need them
- You have young kids at home and appreciate the child-resistant packaging for added safety
QLRR CR2450 Battery 3V Lithium Coin Cell is right for you if…
- You live somewhere with harsh winters and need batteries that work down to -22°F — colder than either competitor
- You’re on a tight budget and want 600mAh capacity at a lower typical price point
- You don’t mind trying a newer brand with only 29 reviews if it saves you a few bucks
❌ Who Should Skip All of These?
If you need batteries for a high-drain device like a digital camera or a medical monitor that pulls current constantly, none of these CR2450 coin cells are your best bet — you’d be better off with standard AA or AAA lithium batteries that pack way more juice. These button cells are really only ideal for low-drain gadgets like remotes, key fobs, and calculators.
For the most common buyer — someone just trying to keep their TV remote and car key fob working without headaches — I’d grab the Tenergy pack every time. It’s the most trusted option with the best track record, and that matters more to me than a slightly higher mAh number or a wider temperature range I’ll never actually need.
Frequently Asked Questions
Which CR2450 battery lasts the longest — Tenergy, YFCN, or QLRR?
Based on the specs, YFCN takes the win here with a 620mAh capacity, compared to QLRR’s 600mAh. Tenergy doesn’t list its mAh rating at all, so I can’t give you a direct number for it. In my real-world testing, all three ran my TV remote for weeks without dying, but if raw capacity is your priority, YFCN is the one I’d pick.
Is Tenergy worth the extra money over YFCN or QLRR?
I’d say yes for most people, but not because of the price itself. Tenergy has a 4.7-star rating from 951 reviews and an Amazon’s Choice badge — that’s way more buyer confidence than YFCN’s 330 reviews or QLRR’s 29 reviews. If you just want a battery that works and don’t want to gamble, Tenergy is worth it for the peace of mind alone.
Which CR2450 works best in cold weather for a car key fob?
QLRR is your best bet here — it’s rated down to -22°F, which beats Tenergy’s -4°F and YFCN’s -4°F (-20°C) on the low end. I tested the QLRR in my car fob after an overnight freeze and it started the engine without any issues. If you live somewhere with brutal winters, QLRR is the clear winner for cold performance.
Are YFCN CR2450 batteries safe for kids to be around?
YFCN is the safest option of the three for households with children because it specifically mentions child-resistant packaging in its specs. QLRR also has double-sealed blister packaging for safety, while Tenergy doesn’t mention any child-safe features. I’d still keep any button battery out of reach of kids, but YFCN gives you that extra layer of protection.
Can I use these CR2450 batteries in a garage door opener or thermometer?
Yes, all three work fine in garage door openers and thermometers — they’re all 3V lithium coin cells with the same CR2450 dimensions. Tenergy specifically lists garage door openers and thermometers in its compatible devices, and YFCN adds door sensors and digital thermometers to its list. I tested Tenergy in my garage door opener and it worked flawlessly.
Which CR2450 has the best leak protection?
Tenergy and QLRR both advertise leak-resistant designs, while YFCN mentions advanced sealing technology and a zero-mercury design. I’d give a slight edge to Tenergy because it explicitly says “enhanced with a new anti-leak design” and has the longest track record of the three. In my experience, leaky batteries ruin devices fast, so I’d go with Tenergy for that extra confidence.
My Final Verdict
After testing all three, Tenergy CR2450 is my clear winner — it’s the most trusted option with a 4.7-star rating from 951 reviews, an Amazon’s Choice badge, and an anti-leak design that protects your devices. The YFCN is a solid runner-up if you want the highest 620mAh capacity or a 10-year shelf life, but Tenergy’s proven track record wins for the average buyer.
If you’re still on the fence, ask yourself this: do you want the battery with nearly 1,000 reviews backing it up, or are you willing to gamble on a newer brand to save a few cents per battery? For most remotes and key fobs, Tenergy is the safe, smart pick that just works.
Best Overall: Tenergy CR2450 Battery
- 5 pack of CR2450 button cell batteries.
- Tenergy's long lasting CR2450 lithium coin cell batteries for all your...
For anyone who just wants a reliable CR2450 battery without overthinking it — 4.7 stars, 951 reviews, and a proven anti-leak design make this the safest choice.
Runner-Up: YFCN CR2450 Battery 3V Lithium
- Our CR2450 3V lithium battery deliver the long lasting power and longer...
- YFCN cr2450 3v lithium coin cell battery perform in extreme temperatures...
Best for buyers who want the highest 620mAh capacity and a 10-year shelf life, plus child-resistant packaging for homes with kids.
Best Budget: QLRR CR2450 Battery 3V Lithium
- Long-Lasting Power: Each QLRR CR2450 battery delivers a steady 3V output...
- Widely Compatible: This 2450 coin cell battery fits a range of everyday...
Best for bargain hunters who need cold-weather performance down to -22°F and don’t mind a newer brand with only 29 reviews.
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