DURACELL 2032 Lithium Battery. 4 Count Pack. Child Safety Features. Compatible with Apple AirTag, Key Fob, and other devices. CR2032 3V Cell. 2032 Battery, Lithium Coin

Why I reached for these coin cells

My house quietly depends on coin-cell batteries: key fobs, Apple AirTags, a kitchen scale, a couple of thermometers, and a drawer of tiny remotes. I picked up the Duracell CR2032 4-pack to simplify replacements across those devices and to have a few spares on standby. After several weeks of everyday use and a handful of device swaps, these have become the set I’ll keep around.

Packaging and safety details that actually matter

Duracell leans into safety on this pack, and it shows. The blister packaging is genuinely child-resistant—there’s no way to thumb a cell out of the pack. You will need scissors, which is mildly inconvenient for adults and exactly the point if you have kids in the house. Each cell sits in its own sealed cavity, so you can open one without exposing the others to air or curious hands.

The cells themselves carry a non-toxic bitter coating on both sides to discourage swallowing. You can’t see it and won’t notice it during installation, but it’s there. It’s not a substitute for basic caution—coin cells are ingestion hazards—but it’s a helpful layer of deterrence. I also appreciated that the polarity markings are large and clear, which makes quick swaps less error-prone.

Tip: After handling any bitter-coated coin cell, wash your hands if you’re heading straight back to food prep. The coating can transfer a taste to your fingers.

Installation and compatibility across common devices

I installed these in:

• Two Apple AirTags
• A car key fob
• A kitchen/bathroom scale
• A small IR remote for a light bar
• A digital thermometer

Fitment was spot-on—this sounds trivial, but off-spec coin cells can be a hair too thick or thin and cause intermittent contact. These sat flush and secure in every tray, and all devices powered up immediately.

AirTag note: Some bitter-coated CR2032 cells have been known to cause contact issues in a few older devices. I didn’t encounter any problems in any AirTag or fob I tested. If you do, a quick wipe of the battery contacts in the device with a dry cloth often solves it. In rare cases, a device might prefer an uncoated cell, but that wasn’t my experience here.

Performance and consistency

Out of the pack, my battery tester showed full voltage on all four cells. That’s expected for a quality CR2032, but consistency across a pack matters. After installation:

• AirTags reported a full battery weeks in, with no early warnings.
• The key fob regained its snappy range.
• The scale stopped doing the “half-power flicker” routine and stabilized.
• The IR remote’s responsiveness improved, especially for repeated presses.

A CR2032 is meant for low-to-moderate drain over long periods or short bursts of higher current (like a car fob). I’m not going to promise exact runtime—every device manages power differently—but compared to generic cells I’ve used, these have avoided early dips or sudden drop-offs. That steady performance is what I want from coin cells: install and forget about them for a good while.

Shelf life and storage

Duracell rates these to hold power for up to 10 years in storage. That aligns with why I like the 4-count pack: it’s enough to handle a couple of immediate swaps and leave extras for the next surprise low-battery beep. If you’re buying ahead, check the expiry date on the card and store unopened packs in a cool, dry place. No freezer needed. Once opened, keep spares in the original blister until you use them—don’t toss loose coin cells into a drawer where they can short against metal.

Build quality and quality assurance

The finish on the cells is clean, with sharp, readable etching and no rough edges. Contacts are smooth, and the coating doesn’t smear or flake. Duracell backs these with a quality guarantee against defects in materials and workmanship. In practical terms, I care more about consistency in voltage and physical tolerance than a warranty card; these hit those marks.

Value and pack size

You can find cheaper CR2032s, especially in large bundles. The 4-pack sits in the sweet spot: enough cells to be useful without committing to a bulk box that may outlive your devices. I’d rather pay a small premium for cells that behave predictably in critical items like key fobs and trackers. The cost difference tends to pay itself back in fewer surprise failures and less frequent replacements.

If your home runs on a lot of CR2032s—think dozens of sensors and tags—buying larger name-brand packs makes sense. For most households, this 4-pack covers common needs.

What could be better

• Packaging vs convenience: While I appreciate the child-secure design, opening the blister requires scissors and a bit of care. I’d love to see a perforated, single-cell sleeve system that retains child-resistance but is a touch easier for adults.
• Bitter-coating edge cases: I didn’t have compatibility issues, but some niche or older devices can be picky. If you run into intermittent contact, clean the device contacts or try a cell without a coating. It’s rare, but worth noting.
• Environmental trade-off: These are primary (non-rechargeable) lithium cells. If you’re cycling through large volumes in certain gadgets, consider whether a device that supports rechargeables or a different form factor might be better long-term.

Safety reminders

• Store out of sight and reach of children and pets.
• Don’t keep loose coin cells in pockets, purses, or drawers with metal objects; shorting can cause heat or leakage.
• Recycle spent coin cells properly. Many hardware stores and municipal centers accept lithium primary batteries.

Alternatives and sizes

If your device manual specifies a different 20 mm coin cell, Duracell also offers CR2016 and CR2025. They look similar but differ in thickness and capacity. Always match the exact code stamped inside your device. If you absolutely need a rechargeable coin cell, know that LIR2032 rechargeables use a different chemistry/voltage profile and aren’t drop-in replacements for every CR2032 device—check compatibility first.

Who this 4-pack is for

• People with a handful of essential devices (key fobs, trackers, scales, remotes) who want dependable replacements without buying a brick of batteries.
• Households with kids where child-resistant packaging and a bitter coating provide sensible, extra safeguards.
• Anyone who values long shelf life so spares are ready when something chirps at 11 p.m.

My take after living with them

What I want from coin cells is boring reliability. These Duracell 2032s deliver that. Installation is uneventful, voltage is consistent across the pack, and performance has been steady across everything I tried. I appreciate the safety-first approach—especially the coated cells and the packaging—because coin cells are exactly the kind of small hardware that can cause big problems if left lying around.

They’re not the cheapest, and the pack isn’t the easiest to open, but those trade-offs make sense for what you get: dependable cells you can store for years and trust in the devices you use every day.

Recommendation

I recommend the Duracell CR2032 4-pack. It’s a practical, reliable choice for everyday devices, with thoughtful safety features, strong out-of-the-pack performance, and a long storage life that makes keeping spares a no-brainer. If you value predictable behavior in key fobs and trackers and want packaging that’s harder for children to access, this pack is worth choosing over bargain-bin alternatives.