Energizer 2CR5 Lithium Battery Review: Reliable Power Verdict
The Energizer 2CR5 Lithium Battery has become somewhat of a cult-favorite among film photographers and owners of legacy cameras, scoring a solid 9/10 in aggregated user ratings. While marketed as a high-energy, long-life photo battery, what really stands out in user feedback is its availability and ability to bring vintage electronics back to life — often years after they’ve been shelved. Reddit user feedback and Best Buy reviews alike lean heavily toward praise, with one buyer noting: “Canon rates 2CR5s up to 40 rolls or 5 years, and I’m confident in that number.”
Quick Verdict: Yes — especially for film camera users and vintage gear collectors.
| Pros | Cons |
|---|---|
| Long-lasting power, often years between replacements | Price higher than generics |
| Consistent performance in older film cameras | Occasional reports of overheating |
| Wide compatibility with legacy models | Some units arrive with dents or low voltage |
| Reliable cold-weather operation | No rechargeable option |
| Readily available at major retailers | Packaging may vary |
Claims vs Reality
One of Energizer’s key marketing claims is “long-lasting performance for film and digital cameras”. Owners of older Canon and Minolta film models back this up in droves. A verified buyer on Amazon wrote: “I put the battery in and the camera came to life… previous batteries have lasted years.” Students in college photography courses seem to rely on it heavily because, as Reddit notes, alternatives either don’t fit or die quickly. Best Buy user Anton reinforced this: “The battery is still showing no signs of quitting… I use the camera once a week on average.”
Another claim is 10-year shelf life. While hard to verify in casual use, multiple stories point to forgotten cameras springing back to life with stored or newly bought batteries. Responding to weather station users, one Amazon reviewer noted: “Three months in, minimal discharge — if they make it through the winter, it’s a winner.”
Energizer also lists extreme temperature durability (-40°F to 140°F). Cold-weather operation gets specific praise from outdoor shooters. Reddit users caution that hot climates could test upper limits, though most feedback is neutral on heat except one Amazon customer reporting, “Battery got hot and froze my camera.”
Cross-Platform Consensus
Universally Praised
From Reddit hobbyists to Trustpilot reviewers, the defining praise goes to compatibility and longevity. Vintage gear owners benefit most — a Best Buy customer recounts reviving an “old relic of a Canon EOS A2e”, calling it a hunt-ending find. Film students praise it for “semester-long reliability” without the frustration of mid-project battery swaps. The long shelf life is especially valued by occasional shooters, with Reddit's feedback highlighting that cameras left idle for months still fire immediately.
Photographers using older Canon FD lenses or Minolta bodies see it as irreplaceable; alternatives often fail to match voltage stability. Even non-camera uses, like CNC machine backups, surface in Reddit discussions: “Great performance and longevity… reliable for memory storage.”
Common Complaints
Price emerges as the most frequent gripe, especially when buying at specialty stores. While Amazon often undercuts brick-and-mortar costs, Best Buy shoppers accept a higher price for instant availability. There are occasional gripes about dead-on-arrival units. One Reddit reviewer warns: “Some customers received dead batteries… quality control could be better.” A handful report heat issues during use, seen in the Amazon review about the frozen camera. Rare but worth noting: minor dent damage on arrival from Panasonic versions.
Divisive Features
The non-rechargeable design divides opinion. For purists and casual shooters, single-use longevity trumps rechargeable convenience. Sustainability-focused users would prefer a rechargeable lithium option — though in community comparisons, rechargeables often lack shelf life or extreme-temp tolerance. Packaging variation is another minor cause of discontent; while harmless, buyers prefer predictable presentation for storage purposes.
Trust & Reliability
Trustpilot/Best Buy sentiment reveals impressive consistency across years of use. Buyers from a decade ago still recommend it, citing no noticeable voltage drops in seldom-used cameras. As one long-term Best Buy customer put it: “Old camera… works like a charm as expected. Nice feature is the long shelf life.” Importantly, Fakespot analysis found minimal fake review patterns — over 90% high-quality reviews.
Durability stories pile up in Reddit threads: users pulling cameras out after years in closets find them fully operational after insertion. This kind of scenario resilience is rare for single-use lithium batteries, and the Energizer 2CR5 is one of the few consistently achieving it.
Alternatives
The main competition comes from Panasonic 2CR5 and budget brands like EBL. Panasonic sees praise for analog film compatibility and lower price points — one Reddit review calls it “perfect for Canon EOS 35mm film cameras, expiration date 2031.” However, scattered feedback notes poor battery life in some batches.
EBL delivers affordability and eco-friendly sealing technology, working in extreme temps, but short lifespan reports make it less appealing for professional shooters. For memory storage devices and occasional camera use, EBL satisfies cost-conscious buyers, yet serious photographers gravitate to Energizer’s reliability.
Price & Value
Prices vary sharply by outlet: eBay bulk deals under $7 per unit, Best Buy retail up to $15, and Amazon often in the $10–$13 range for singles. Reddit buyers emphasize stock certainty over savings, especially for academic or project deadlines. Tips from the community include buying in 2-packs when available, watching for high-volume eBay sellers with proven authenticity, and avoiding unfamiliar “no-name” brands that can underperform or damage equipment.
FAQ
Q: Are Energizer 2CR5 batteries rechargeable?
A: No. These are single-use lithium batteries. Users attempting to recharge risk damaging both the cell and the charger.
Q: Will this fit my Nikon camera marked 223 CRP2 6V?
A: No. The 2CR5 is longer than a 223, and it won’t fit that battery compartment.
Q: What’s the shelf life?
A: Energizer states 10 years. Many users confirm functionality after years of storage.
Q: Does this work with Canon EOS Rebel XS 35mm?
A: Yes. Multiple Best Buy and Reddit reports confirm compatibility.
Q: Can I use this instead of 4LR44 6V?
A: No. It won’t fit the 4LR44 compartment — voltage is the same, but form factor differs.
Final Verdict
Buy if you’re a film camera user, vintage electronics owner, or outdoor shooter needing reliable cold-weather performance. Avoid if you seek rechargeable convenience or are trying to fit non-2CR5 battery bays. Pro tip from Best Buy customers: “Stock up when you find it — supply can vanish quickly.”
