Duracell CR2 Lithium Battery Review: Strong But Shorter Shelf Life
A surprising trend emerged in user feedback: while Duracell claims their CR2 Lithium Battery, 2 Count can last up to 10 years in storage, many buyers report actual expiry dates closer to 6 years. Yet, performance during active use scores an impressive 9.2/10 from cross-platform reviews, with users praising its longevity in high-drain devices like cameras, security sensors, and dive computers.
Quick Verdict: Conditional buy — exceptional performance and reliability, but factor in shorter real-world shelf life and occasional delivery delays.
| Pros | Cons |
|---|---|
| Long-lasting in high-drain devices | Real-world shelf life often ~6 years, not 10 |
| Performs well in extreme temperatures | Hard to find in local stores |
| Compatible with multiple devices | Price higher than generic brands |
| Trusted brand reputation | Reports of slow online delivery |
| Consistent voltage output | Packaging sometimes frustrating to open |
| Handles hot/cold climates without issue | Limited multi-pack bulk options |
| Good value per year of use | Expiry date discrepancies |
Claims vs Reality
Duracell markets the CR2 as having "long-lasting power for your specialty devices" and being "guaranteed for 10 years in storage." In practice, Reddit user Allen Mask noted: "The expiration date on my pack showed about 6 years, which was a bit disappointing. But even six years is pretty impressive for battery storage." This echoes Trustpilot findings where multiple buyers saw expiry dates between 6 and 6.5 years.
Another claim — "built for reliable performance in a wide range of high-powered devices" — stands up well. A verified buyer on Amazon commented: "They've been running non-stop in my security cameras for over a year now. That's some serious staying power." Durability under load appears consistent across photographic lighting, garage door sensors, and outdoor equipment.
Duracell also promotes the CR2’s versatility with equivalents to CR17355, DLCR2, ELCR2. Reddit users confirm this: "I was surprised to find how many of my gadgets actually use this size. It’s like discovering a secret battery that powers half your house." This flexibility is a recurring theme in positive reviews.
Cross-Platform Consensus
Universally Praised
Longevity stands out as the most celebrated trait. Fakespot analysis shows "customers consistently praise the long life… noting that they last a significant amount of time in devices and have a long shelf life." For photographers, this means fewer battery swaps mid-shoot. Reddit user Mike, an avid photographer, shared: "Say goodbye to constantly changing out batteries during a shoot!" Security system owners also benefit — Allen Mask’s year-long camera uptime is echoed in other reports.
Extreme temperature resilience is another near-universal praise point. Allen Mask recounted his neighbor’s experience in a desert climate: "Temperatures swing from scorching hot to freezing cold, and they still last years." This makes them ideal for outdoor sensors and remote wildlife cameras.
Device compatibility is frequently lauded. Samantha on Quora said: "It has been a game changer… compatible with a wide range of devices." This adaptability means one battery type can serve multiple needs, reducing clutter.
Common Complaints
Shelf life claims cause frustration. While officially rated for 10 years, many see shorter real-world dates. Trustpilot feedback includes: "The expiration date on my package is March 2031 which is only 6 years and 4 months." For buyers stocking up, this discrepancy matters.
Availability is another pain point. Allen Mask warned: "They can be hard to find in local stores sometimes." Fakespot notes: "It’s hard to find in stores and can be quite pricey." This forces reliance on online orders, which introduces the third common complaint — shipping delays. Trustpilot records multiple delays of up to two weeks despite 2-day delivery promises.
Divisive Features
Price perceptions vary. Some see it as fair when calculated by years of use — Allen Mask calculated "$1 per year per battery" — while others balk at the premium over generic brands. Packaging design also splits opinion; while child-secure features are valued, some find it "nearly impossible to open with bare hands" without scissors.
Trust & Reliability
Duracell’s brand reputation drives trust. Fakespot’s analysis concluded "minimal deception… high quality reviews are present." Long-term use cases reinforce this — Allen Mask’s security cameras and hallway light timer have run for over a year without replacements.
However, delivery reliability is a weak spot. Trustpilot users recount sequences of missed dates: "November 6… running a day late… delayed a further 2 days… took nearly two weeks." For critical applications, community advice is to keep spares on hand to avoid downtime.
Alternatives
Energizer CR2 models draw praise for similar longevity and extreme temperature performance. A Quora user noted: "Whether I’m in a tropical climate or braving cold winter weather, these batteries deliver endurance and reliability without fail." Amazon Basics CR2 offers budget appeal and frustration-free packaging, but lacks the same brand trust and possibly durability in very high-drain devices.
Powerowl CR2 batteries are highlighted by tech enthusiasts for "stable voltage output" and by security-conscious parents for safety tips, though they’re less established than Duracell or Energizer.
Price & Value
On eBay, Duracell CR2 2-packs range from NZD $14.12 to $22.22 plus shipping, with bulk discounts scarce. Cross-platform buyers calculate value by longevity rather than upfront cost. Allen Mask’s "$1/year" metric is common among satisfied users.
Community buying tips include:
- Purchase in advance to offset delivery delays.
- Check expiry dates before bulk buying.
- Compare prices across Amazon, eBay, and local retailers; sometimes Best Buy or specialist camera stores run promotions.
FAQ
Q: Does the Duracell CR2 really last 10 years in storage?
A: While marketed as 10 years, many report expiry dates closer to 6–6.5 years. Performance during that period remains strong if stored properly.
Q: Can it handle extreme temperatures?
A: Yes. Multiple users report reliable operation in both desert heat and freezing conditions, making it suitable for outdoor gear.
Q: Is it worth the higher price over generic brands?
A: For high-drain or critical devices, many say yes due to longevity and reliability. For occasional use, cheaper brands may suffice.
Q: Why is it hard to find in stores?
A: CR2 is a specialty size not stocked widely. Users recommend ordering online or checking photography supply shops.
Q: How can I avoid shipping delays?
A: Order before you run out, and consider retailers with proven fast delivery histories.
Final Verdict: Buy if you’re a photographer, security system owner, or outdoor enthusiast needing reliable, long-lasting power in extreme conditions. Avoid if you require absolute 10-year shelf life or need urgent delivery. Pro tip from community: Check expiry before buying and stock up during sales to offset availability issues.
