DURACELL 2032 Lithium Battery. 8 Count Pack. Child Safety Features. Compatible with Apple AirTag, Key Fob, and other devices. CR2032 Battery Lithium Coin. CR 3V Cell

Small coin cells power more of my daily gear than I’d like to admit—key fobs, trackers, remotes, a couple of slim sensors, even a set of fairy lights I keep on a bookshelf. After rotating through a handful of budget CR2032s over the years, I switched to the Duracell CR2032 8-pack and put them through a mix of everyday use and side-by-side comparisons. The short version: they’re consistent, they last, and they’re clearly engineered with safety in mind. The only real wrinkle is the packaging, which is intentionally tough to open.

What you’re getting

• Eight CR2032 lithium coin cells, 3V each
• A non-toxic bitter coating on both sides to discourage swallowing
• Child-secure packaging that requires scissors to open
• A 10-year storage guarantee (mine arrived with a long-dated expiration)

It’s a simple value proposition: dependable cells, safer handling around kids and pets, and enough inventory to cover multiple devices without frequent reorders.

Real-world performance

Longevity matters most with coin cells, and these have been solid across both low-drain and intermittent-use devices.

• Key fob: I ran a practical side-by-side comparison with two identical fobs—one with a Duracell CR2032, one with a generic. After three months of normal use, the Duracell-equipped fob maintained range and responsiveness; the generic began dropping commands and showed a low-battery warning. A quick voltage check mirrored the experience: the Duracell stayed close to nominal under load, while the generic sagged sooner.
• Trackers (like AirTag): No hiccups at all. Battery life has been in line with expectations and consistent across units.
• Fairy lights: In a continuous run test on two identical strings, the Duracell kept a usable glow significantly longer than a discount brand. In these steady-drain scenarios, the difference is obvious.
• Remotes and small sensors: These tend to sip power, and I prefer not to think about them again for a long time. The Duracell cells deliver that forget-it-and-move-on reliability.

Performance consistency is as important as absolute runtime. I haven’t encountered duds, rapid early drop-offs, or leakage. The cells came in clean, sealed compartments, and the expiration codes were far out, which matters if you’re buying an 8-pack to last you years.

Child safety and packaging

Duracell’s bitter coating and child-resistant packaging are more than marketing—both are prominent and effective. The bitterant is immediately noticeable if it touches your lips (ask me how I know), and while it’s non-toxic, it definitely discourages curious testing. That’s the point.

The packaging is another layer of prevention. You will need scissors to open it, and you’ll want to cut along the indicated channels to free just one cell at a time. It’s a trade-off: there’s genuine peace of mind if you have kids around, but if you’re traveling or you expect to pop a battery out on the fly, the packaging can be frustrating.

A few practical tips:
- Pre-open one or two cells at home and keep them in a small coin envelope or plastic battery case if you expect to need them on the go.
- Don’t use a knife; the plastic clamshell resists tearing and can be slippery.
- Dispose of the cut packaging pieces promptly so loose cavities don’t become grabby curiosities for small hands.

Compatibility with trackers and fobs

Some users worry that bitter coatings might interfere with battery contacts in very compact devices. In my experience, these Duracell cells work normally in AirTags, key fobs, and slim remotes without any special prep. If you run into a device that’s particularly picky, a quick wipe with a dry, lint-free cloth (or slightly damp with water, thoroughly dried afterwards) is enough to ensure clean contacts. I wouldn’t use solvents; there’s no need.

Storage and shelf life

Duracell claims a 10-year shelf life, and the long-dated expiration on my pack backs that up. Proper storage still matters:
- Keep in a cool, dry drawer or container, away from humidity.
- Leave cells in their individual blisters until needed to avoid accidental shorting or contamination.
- Don’t store loose cells together or with metal items (key rings, paper clips).

If you go through CR2032s slowly, this 8-pack makes sense precisely because the cells should be ready when you finally need them.

Build quality and quality control

Coin cells sound simple, but slight differences in internal construction can show up in voltage stability and runtime under load. Across this pack, I saw consistent behavior from cell to cell. No oil residues, no bent edges, and no flaky or brittle blisters—small details, but they matter for contact reliability in tight battery sleds.

What I don’t love

• Packaging convenience: Safety-first design is the right approach, but it does mean friction if you need an emergency swap and don’t have scissors. If you routinely carry spares, pre-opening is almost mandatory.
• Taste transfer: The bitter coating can linger on your fingers. Wash hands after handling to avoid an unpleasant surprise when you later snack or touch your face.
• Price vs. budget brands: You can buy cheaper CR2032s. In my tests and daily use, they don’t last as long or as consistently, which erases the savings. But if you’re powering something disposable or rarely used, the value calculus may differ.
• Not rechargeable: That’s a given for CR2032 chemistry, but it’s worth noting for those trying to minimize waste. Be sure to recycle spent coin cells at appropriate drop-offs.

Who it’s for

• Families or caregivers: The bitter coating and child-secure packaging meaningfully reduce risk around small batteries.
• People who rely on key fobs and trackers: Consistent voltage and solid runtime help avoid range loss and false low-battery alerts.
• Smart home users: Contact sensors, leak detectors, and other low-draw devices benefit from the longer, predictable lifespan.
• Tinkerers and hobbyists: If you run LEDs, small remotes, boards, or meters, having a known-good CR2032 on hand saves troubleshooting time.
• Occasional users: Thanks to the long-dated expiration, you won’t feel pressured to burn through the pack quickly.

If you use CR2032s in medical devices like glucose monitors, always follow the device manufacturer’s battery guidance; while these cells are common in that category, compliance and warranty considerations can vary.

Practical tips for best results

• Clean contacts lightly before installing if a device has been sitting. Dust and skin oils can impede performance.
• Insert with the correct polarity; coin cells seem simple, but some holders obscure the markings.
• If a device is finicky, rotate the cell a few degrees in the holder to improve surface contact.
• Label the install date on the device or a note on your phone; it helps you spot abnormal drain later.

Bottom line

I recommend the Duracell CR2032 8-pack. In my devices and tests, these cells outlasted generics, maintained stable performance under typical loads, and arrived with long-dated expiration codes that make stocking up sensible. The child-safety features are not window dressing; they’re implemented thoughtfully and provide genuine reassurance in households where small batteries are a hazard.

The trade-off is packaging convenience. You’ll need scissors, and you should plan ahead if you expect to swap a battery while traveling. For me, that’s an acceptable compromise for the safety benefits and the reliability I’ve seen in daily use. If you value consistent performance, fewer surprise low-battery moments, and safer handling, this pack earns a spot in the drawer.