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If you’ve landed here, you’re probably staring at a dead key fob, a silent watch, or a sensor that stopped reporting — and you need to know which 24mm coin cell is actually worth dropping into the slot. The good news is that the 2430 size is a well-trodden standard, so your main job is picking between raw value, brand trust, and how long you want to avoid the next swap. This guide cuts through the spec sheets to tell you which battery earns its place in your drawer.
I’m Min — the founder and writer behind Gadgets Feed. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
You need a 2430 battery equivalent that fits your car remote, medical monitor, or smart home sensor without fail. That means matching the exact voltage (3 volts), capacity, and shelf life your device expects, so it powers up and stays powered.
Our Picks at a Glance
How To Choose The Best 2430 Battery Equivalent
Choosing a 2430 coin cell is mostly about matching the right chemistry and capacity to how your device drains power. The label “CR2430” is a universal standard, but the brand you pick and the number of cells in the pack will shape your experience far more than the tiny size difference.
Check the capacity first
Capacity, measured in milliamp-hours (mAh), tells you how much energy the cell holds. A higher number like 290mAh generally means longer runtime in a low-drain device compared to a 225mAh cell, though real-world life also depends on how your gadget uses power.
Understand the “equivalent” names
Batteries labeled DL2430, ECR2430, BR2430, or KCR2430 are all designed to fit the same 24mm by 3.0mm slot and deliver 3 volts. You can swap these interchangeably in most devices, which is why the word “equivalent” gets thrown around so much.
Match the pack size to your needs
If you only need one battery for a single fob, a 2-pack saves you from hoarding spares. If you run multiple sensors or remotes, a 20-pack or even a 100-pack makes financial sense — just be honest about whether you’ll actually use them before the shelf life runs out.
Quick Comparison
| Model | Best For | Capacity | Count | Voltage | Amazon |
|---|---|---|---|---|---|
| Energizer CR2430 10-Pack★ Best Overall | Multi-device households | 290 mAh | 10 | 3V | Amazon |
| Energizer 6-Count PackBudget 6-Pack | Budget multi-pack spares | — | 6 | 3V | Amazon |
| Tenergy CR2430 20-Pack20-Pack Value | High-volume replacement | 3V | 20 | 3V | Amazon |
| Duracell Lithium 2430 | Brand-name reliability | — | 1 | 3V | Amazon |
| FOZAOAXE CR2430 20-Pack | Long shelf-life spares | 270 mAh | 20 | 3V | Amazon |
| Energizer ECR2430BP 6-Pack | High-drain remotes | 290 mAh | 6 | 3V | Amazon |
| Volvo Key Fob 2-Pack | Volvo owners needing a pry tool | 225 mAh | 2 | 3V | Amazon |
| Renata CR2430 5-Pack | Swiss-made precision devices | 285 mAh | 5 | 3V | Amazon |
| SKOANBE 100-Pack | Bulk buyers with many devices | — | 100 | 3V | Amazon |
In‑Depth Reviews
1. Energizer CR2430 10-Pack (ECR2430BP)
Our pick — over 4.5★ from 28,500+ verified ratings; the strongest balance of quality and price.
The 10-pack that pairs 290 mAh of capacity with a brand name owners trust for Arlo cameras and flashlights.
This Energizer pack is the crowd favorite for a simple reason: it covers the two things you actually want from a coin cell — dependable power and enough spares to forget about reordering. At 290 milliamp-hours (mAh), it holds a solid charge for a 3-volt cell, which is why it’s a common pick for heart rate monitors, keyless entry systems, and watches that sip power slowly. The cells operate from -22º to 140º F, so a fob in a hot car or a sensor in a freezing garage keeps working.
What wins people over is the value — with a 10-pack in hand, you’re set for years across multiple devices. The battery life story is more honest: some buyers report cells lasting longer than regular ones, while others see them die in under a month in high-drain gear like motion sensors. The eight-year storage shelf life makes this 10-pack a set-and-forget buy for multi-device households.
There’s a caveat that pops up in the review pages: a few owners mention getting a dud that dies far too fast, including one who saw less than two months of service in security sensors. It’s not the norm, but it’s worth knowing that even the top brand isn’t immune to the occasional bad cell — which is exactly why a 10-pack gives you margin to work with.
Why It Wins
- 290 mAh capacity delivers strong runtime for low-drain gadgets
- 10-pack means you won’t reorder for a long stretch
- Handles -22º to 140º F temperature swings
The Cloud
- Battery life is mixed — some cells die fast in high-drain sensors
- Zero mercury design, but still single-use only
Reach for this if: you want a trusted brand with enough spares for the whole house and a watch that’s been running since 2019 on one cell.
Look elsewhere if: your device chews through batteries quickly — you’ll want a higher-capacity option for that draw.
2. Energizer Watch/Electronic Battery 6-Count
A budget 6-pack of genuine Energizer cells that owners call a great value for hard-to-find sizes.
If you just need spares without paying for a 10-pack you might not use, this 6-count box hits a balance — it’s the same brand name but at a friendlier price. The cells are the standard 2430 size at 3 volts, made for watches and calculators, and they arrive individually wrapped in commercial packaging. That’s a small detail that matters if you’re stashing extras in a drawer and don’t want them rattling around loose.
Quality is the thing everyone raves about here, and it’s backed by a practical win: owners note you get six batteries for what two would cost bought individually. The cells work well in dog collars and alarm sensors, per buyer reports, which speaks to steady 3-volt output in low-drain roles. One recurring piece of advice from the review pages is to treat the pack with a little caution — a single dead cell at 0 volts showed up in one delivery, so having five working backups is the buffer.
The honest trade-off is shipping time, with some orders coming from overseas and taking over two weeks to arrive. That’s fine if you’re planning ahead, but not ideal for an urgent fob revival.
Solid spares: the 6-pack balances cost and brand trust, but expect occasional shipping delays and the rare dud cell.
Who it suits: anyone who needs a handful of genuine Energizer cells without committing to a bigger bulk pack.
The warning: order early — delivery can stretch past two weeks, and one of the six might arrive dead.
3. Tenergy CR2430 20-Pack
A 20-pack that handles cold down to -4 °F, built for hurricane shade remotes and Volvo fobs.
This Tenergy pack is for the household that burns through coin cells — 20 of them covers key fobs, calculators, heart rate monitors, and thermometers in one go. It runs on the standard 3-volt lithium chemistry and is tuned for temperature extremes, performing as cold as -4 °F and as warm as 140 °F. That makes it a smart pick for outdoor sensors or a car remote that lives in a freezing garage.
Reliability is what owners single out most, with buyers reporting perfect function in Volvo key fobs and bathroom scales alike. The value is the second big win — at this count, you’re paying a fraction per cell versus buying singles. A new anti-leak design is built in, which is a genuine comfort for batteries that might sit in a drawer for months between uses.
Here’s the honest part: battery life is the weakest link, with owners reporting cells lasting only about two weeks in some devices. As one buyer put it, the cell “will not last as long as the large long bread” — meaning the bulk price makes it worth it, but you shouldn’t expect marathon runtime.
Bulk bargain: the 20-pack wins on price per cell and cold-weather performance, but shorter life means you’ll swap more often.
Best for: high-volume households with several 2430 devices and a tolerance for more frequent swaps.
Not for: a single critical device where you want maximum time between changes.
4. Duracell Lithium Coin Battery 2430
A single premium cell guaranteed for 10 years in storage, arriving fresh with the child-safe packaging.
When a coin cell fails and you need to know the next one won’t, Duracell makes the case for paying a bit more per battery. This is a single 2430 cell backed by a 10-year storage guarantee, so it sits in a drawer ready to go whenever you need it. It’s built for medical devices, security gear, and electronics where a dead battery is a critical failure.
The cell ships in child-resistant packaging and is guaranteed against material and workmanship defects. The warranty also covers device damage: if a Duracell defect harms your gadget, the company repairs or replaces it. Owners confirm the cells arrive “legit and fully charged,” with years still under the expiration date — a real concern given how many knock-offs ship half-charged.
The only real drawback is scale — this is a single battery, so it’s not the play for someone managing five devices. But for a Misfit Phase watch or a Volvo XC60 key remote that needs a reliable drop-in, it’s exactly the kind of no-surprises cell you want.
Trust in a cell: the 10-year storage guarantee and defect warranty make this the safest single-battery bet on the list.
Choose it when: you need one dependable cell for a critical device and want the backup of a real warranty.
skip it if: you’re stocking multiple devices — you’ll want a multi-pack for that.
5. FOZAOAXE CR2430 20-Pack
A 20-pack with a 270 mAh core and a 10-year leak-proof shelf life for bulk buyers.
This FOZAOAXE pack leans hard into one promise: buy in bulk and forget about it. The cells pack 270 mAh into the standard 24.5mm x 3.0mm frame, with an ultra-low self-discharge rate for up to 10 years of leak-free storage. That’s a meaningful claim if you want a drawer full of backups that actually work when you finally need them.
It’s also a direct equivalent replacement for DL2430, ECR2430, BR2430, KCR2430, and LM2430 cells, so cross-compatibility is broad — watches, car key fobs, heart rate monitors, and smart home sensors all fit the bill. The operating range spans -20°C to +60°C (-4°F to +140°F), covering winter car fobs and summer attic sensors. The zero-mercury cells come in child-resistant blister packaging that needs scissors to open.
The trade-offs show up in the details: the packaging is genuinely hard to open (buyers describe slicing it), and an occasional dud cell slips through — one owner noted a dead battery in the pack but still recommended it since even name brands fail. Steady 3V output in remotes and sensors is the consistent praise.
The Upside
- 270 mAh capacity is strong for a 3-volt coin cell
- 10-year leak-proof shelf life for long-term storage
- -20°C to +60°C operating range
The Downside
- Blister pack needs scissors and patience to open
- Occasional dead cell slips through
Reach for it if: you want a big stash of backups that will still hold a charge years from now.
Be ready for: a frustrating unboxing and the small chance of a dud in the batch.
6. Energizer ECR2430BP 6-Pack
The 290 mAh Energizer that outlasts rivals in window shade remotes and high-drain gadgets.
Some 2430 cells die fast because the device pulls hard on them — and that’s exactly where this Energizer 6-pack earns its keep. With 290 milliamp-hours (mAh) on tap at 3 volts, it’s among the higher-capacity cells you’ll find in this size, built for electronic devices that need steady, reliable power. Customers note it’s “the only one that lasts longer than three days” in a window shade remote, which tells you it handles constant draw better than cheaper alternatives.
The pack of 6 gives you a practical buffer, and the brand backs it with a repair-or-replace guarantee. Battery life is the standout praise across the board — buyers consistently describe it as “long lasting” and note “longer life than other similar batteries.” For a motorized shade or a sensor that runs constantly, that runtime is the whole game.
The catch is thin data: this is a 6-pack, so the upfront cost per cell is higher than the 20-count bulk options, and you’re paying for the Energizer name. But if your device has been eating batteries weekly, the extra capacity tends to pay for itself in fewer swaps.
Longevity first: the 290 mAh capacity is the reason this 6-pack wins in high-drain devices that kill weaker cells.
Who it’s for: anyone with a power-hungry remote or sensor that burns through ordinary coin cells fast.
Who it’s not for: budget-focused buyers who’d rather have 20 cells for the same money, even if they die sooner.
7. Volvo Key Fob 2-Pack (OEM CR2430)
A Volvo-specific 2-pack with a pry tool and video guide, rated 225 mAh for daily fob use.
This is the rare battery listing built for one job: reviving a Volvo smart key fob without a trip to the dealer. The 2-pack delivers OEM replacement cells at 225 milliamp-hours (mAh) and 3 volts, and it’s only compatible with a specific set of Volvo models — XC60 (2010–2017), S60 (2011–2018), XC70 (2008–2016), S80 (2007–2016), V60 (2015–2018), and V70 (2008–2010). If you drive one of those, the fit is exact.
What makes it worth the premium is the whole kit: you get a dual-purpose opening tool to pry open the remote without scratching the case, plus a step-by-step installation video via a link on the packaging. No reprogramming is required after the swap, so it’s a genuine DIY job. The longevity story is strong — one owner reports the cells lasting almost two years with constant daily locking and open up from working out of their car.
The important note is the compatibility list. This is not for C30, XC40, XC90, or a host of other Volvo models, so check the fitment guide in the images before buying. If your fob matches, the included tool and video make this the most simple to use swap on this list.
Kit and caboodle: the pry tool, video guide, and Volvo-specific fit make this the easiest fob fix, not just a battery.
Perfect if: you drive one of the listed Volvo models and want a no-fuss, no-dealer fob fix.
Wrong if: your car isn’t on the compatibility list — check the guide first.
8. Renata CR2430 5-Pack
A Swiss-made 5-pack at 285 mAh that owners say outlasts Energizer in car fobs.
If you’re willing to spend a little more for a cell that punches above its weight, Renata is the quiet specialist pick. These are Swiss-made lithium cells at 285 milliamp-hours (mAh) and 3 volts, recommended to buyers by jewelers and alarm companies for critical devices. The 5-pack gives you a healthy buffer without committing to a 20-count bulk box.
The performance story is compelling: reviewers point out Renata batteries lasting longer in a car fob than Energizer or any other brand, which is why they’re often suggested for medical devices too. The build quality earns consistent praise — “phenomenal quality and durability” with great expiration dates, per the review pages. Water resistance and shelf life come standard with the Swiss manufacturing pedigree.
The honest caveat is the mixed battery-life feedback, with some cells lasting longer and others not as long as hoped. There’s also a potential shipping surprise: one buyer got a postage-due charge on delivery. Still, for a watch or fob where reliability matters more than raw count, this 5-pack delivers.
Specialist grade: the Swiss build and 285 mAh capacity make this the pick for devices where you can’t afford a failure.
Reach for it if: you want premium build quality and better fob longevity than the big-box brands.
Accept that: you’re paying a premium for five cells, and a rare postage-due delivery fee can pop up.
9. SKOANBE 100-Pack CR2430
A 100-pack for the true bulk buyer, with owners praising exact fit in car remotes and fobs.
For anyone managing a fleet of devices — outdoor awnings, car fobs, calculators, smart sensors — this 100-pack is the nuclear option. Each cell delivers the standard 3 volts at the 2430 size, and the sheer count means you’ll likely never think about buying coin cells again. Shoppers say they pop into a car key fob without any issues, arriving well-packaged with no damage or corrosion.
The value math is the headline: at this count, the per-cell cost drops dramatically, which is why buyers describe it as “great value” compared to buying a few at retail. Functionality is the most-praised aspect, with exact fit in remotes and fobs being the consistent theme. For a business with multiple remotes or a household with a sensor on every door, this is the set-and-forget option.
The reality check is battery life — it’s the most-discussed negative, with some owners reporting cells lasting less than 6 months and opinions split on overall quality. One reviewer noted it plainly: “It is good but doesn’t last long enough.” That’s the trade-off you accept for this price per cell.
The Win
- 100 cells at a rock-bottom per-unit cost
- Exact fit and no corrosion in key fobs, per owners
- Well-packaged and ready for long-term storage
The Cost
- Battery life is the top negative — some die under 6 months
- Quality opinions are split, so expect some variance
Buy it if: you have many 2430 devices and want to stop thinking about battery costs entirely.
Think twice if: you need maximum runtime per cell — the cheap per-unit price comes with shorter life.
Understanding the Specs
Capacity (mAh)
Milliamp-hours (mAh) tells you how much energy a battery stores. A higher number, like 290 mAh versus 225 mAh, generally means the cell will run a low-drain device like a watch or fob for longer. For high-drain gadgets like motorized remotes, that extra capacity is the difference between weekly and monthly swaps.
The “Equivalent” Names
Your device might ask for a DL2430, ECR2430, or BR2430 — these all fit the same 24mm by 3.0mm slot and deliver 3 volts. The letters are just manufacturer codes, so any of them work as a 2430 battery equivalent. Always match the size code exactly; a 2032 or 2450 won’t fit correctly.
FAQ
Will a DL2430 work in place of a CR2430?
How long will a 2430 battery last in a car key fob?
Can I use a CR2430 in a device that takes a CR2032?
What is the storage shelf life of a 2430 battery?
Are these batteries safe in extreme temperatures?
Why are some 2430 batteries cheaper per cell than others?
Do I need to reprogram my car key fob after changing the battery?
What does “mAh” mean for my device’s runtime?
Final Thoughts: The Verdict
For most buyers, the 2430 battery equivalent winner is the Energizer 10-Pack because it pairs strong 290 mAh capacity with a trusted brand and enough spares for multiple devices. If you want maximum value and don’t mind more frequent swaps, grab the Tenergy 20-Pack. And for a single critical device where you can’t afford a failure, the Duracell single cell with its 10-year storage guarantee is the one to reach for.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of August 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
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