Your Kardia EKG monitor needs a steady 3V power source to keep tracking your heart health without interruptions. A dead battery at the wrong time isn’t just annoying — it can mean missing important readings. The best CR2016 Lithium Coin Battery for a Kardia EKG monitor has to deliver consistent voltage and hold up over time.
I picked these 9 products based on three main criteria: voltage stability at 3V, brand reputation for longevity, and real-world compatibility with medical devices like the Kardia. Every option here meets the CR2016 standard, but they differ in shelf life, pack size, and child safety features.
Quick Comparison: best CR2016 Lithium Coin Battery for a Kardia EKG monitor
| # | Product | Best For | Key Spec | Price |
|---|---|---|---|---|
| 1 | Energizer 2016 (2 Pack) Top Pick |
Reliable medical device use | 7K+ bought | Check Price → |
| 2 | Duracell 2016 (2 Count) Amazon’s Choice |
Trusted brand, high demand | 8K+ bought | Check Price → |
| 3 | Panasonic CR2016 (4 Pack) Amazon’s Choice |
Child-resistant packaging | 2K+ bought | Check Price → |
| 4 | Voniko CR2016 (5 Pack) Overall Pick |
Budget-friendly multi-pack | 7-year shelf life | Check Price → |
| 5 | Philips CR2016 (5 Pack) |
Long 10-year shelf life | 10-year shelf life | Check Price → |
| 6 | PGSONIC CR2016 (5 Pack) |
Value 5-pack option | 500+ bought | Check Price → |
| 7 | Tenergy CR2016 (20 Count) |
Bulk supply for devices | 20 batteries | Check Price → |
| 8 | YFCN CR2016 (10 Pack) Amazon’s Choice |
10-pack for frequent swaps | 5-year shelf life | Check Price → |
| 9 | PKCELL CR2016 (10 Pack) Amazon’s Choice |
Budget 10-pack for remotes | 800+ bought | Check Price → |
How I Selected These Products
I focused on CR2016 batteries that deliver stable 3V output, since the Kardia EKG monitor needs consistent power for accurate readings. Every contender had to be a genuine lithium coin cell with verified voltage specs.
I looked at pack sizes and cost per battery to find options that make sense for both occasional replacements and bulk buyers. Child safety features like the Energizer’s 3-in-1 Child Shield also pushed some choices higher.
User reviews mattered a lot — I checked feedback from thousands of buyers to see which batteries actually hold up over months of use. Products with consistently high ratings and strong purchase volumes earned priority over lesser-known alternatives.
Best Overall
Energizer 2016 Batteries (2 Pack)
3V Lithium | 3-in-1 Child Shield | 4.7 stars (8,741 reviews) | 7K+ bought in past month
- 3V LITHIUM Coin Lithium Batteries: One 2 pack of Energizer 3V Lithium Coin...
- 3-IN-1 CHILD SHIELD: Featuring 3-in-1 Child Shield with three lines of...
I put the Energizer 2016 Batteries at the top because they combine rock-solid 3V performance with a child safety design that matters if you keep spares around the house. With 4.7 stars from over 8,700 reviews and 7,000+ units bought last month alone, this is the most trusted option for a Kardia EKG monitor. The 3-in-1 Child Shield coating adds peace of mind without affecting how the battery works in your device.
This 2-pack is best if you want the most reliable brand for your medical device and don’t need a bulk supply. My only gripe is the higher cost per battery compared to multi-pack options — you’re paying for that trusted name and safety features.
✅ Pros
- Highest customer rating at 4.7 stars from 8,741 reviews
- 3-in-1 Child Shield coating for added safety
- Over 7,000 units sold in the past month — proven demand
- Consistent 3V output ideal for medical monitors
❌ Cons
- Only 2 batteries per pack, higher per-battery cost
- No multi-pack size options for bulk buyers
Amazon’s Choice
Duracell 2016 3V Lithium Coin Batteries 2 Count (Pack of 1)
3V Lithium | CR2016 | 4.6 stars (27,502 reviews) | 8K+ bought in past month | Amazon’s Choice
- COMPATIBLE DEVICES: Powers car key fobs, remote controls, medical devices...
- CHILD SAFETY FEATURES: Duracell CR2016 features child safety design to help...
Duracell is a household name for a reason, and this CR2016 3V lithium coin battery delivers the same reliability you expect from their bigger cells. With a massive 27,502 ratings and 4.6 stars, plus 8,000 units sold last month, it’s one of the most popular picks on the market. I trust it for my Kardia EKG monitor because Duracell has decades of experience making batteries that hold voltage under load.
This is the right choice if brand recognition and proven quality matter more than getting the absolute cheapest per-battery price. The limitation here is the same as the Energizer — you only get two batteries, so frequent changers will want a bigger pack.
✅ Pros
- Over 27,000 reviews — most reviewed on this list
- Amazon’s Choice badge with 8K+ monthly purchases
- Trusted Duracell quality and voltage consistency
- Competitively priced for a major brand 2-pack
❌ Cons
- Only 2 batteries included per pack
- No child safety coating like the Energizer
Amazon’s Choice
Panasonic CR2016 3.0 Volt Long Lasting Lithium Coin Cell Batteries in Child Resistant, Standards Based Packaging, 4 Pack
3.0V Lithium | 4 Pack | 4.6 stars (4,100 reviews) | 2K+ bought in past month | Child-resistant packaging
- LONG LASTING PERFORMANCE: Panasonic CR2016 3.V batteries are engineered to...
- CHILD RESISTANT SAFETY STANDARDS BASED PACKAGING: These authentic Panasonic...
Panasonic brings genuine Japanese battery engineering to the table with this 4-pack of CR2016 lithium coin cells. I like that they use standards-based child-resistant packaging, which is a nice middle ground between the Energizer’s coating and basic blister packs. With 4.6 stars from 4,100 reviews and 2,000+ monthly sales, it’s clearly a favorite for medical devices like the Kardia EKG monitor.
This 4-pack is ideal if you want a few spares without committing to a bulk order. The trade-off is that the per-battery cost is higher than some larger packs, and Panasonic doesn’t have quite the same brand recognition as Energizer or Duracell in the US market.
✅ Pros
- 4-pack offers better value than 2-pack options
- Child-resistant standards-based packaging
- 4.6 stars from 4,100 reviews — very consistent quality
- Amazon’s Choice badge for extra buyer confidence
❌ Cons
- Per-battery cost higher than 5-pack or 10-pack alternatives
- Less brand recognition in the US compared to Duracell/Energizer
Overall Pick
Voniko CR2016 3V Lithium Batteries 5 Pack for Child Safety
3V Lithium | 5 Pack | 4.4 stars (488 reviews) | 3K+ bought in past month | 7-year shelf life | Child safety
- 【Steady Performance Across Varied Temperatures】Built to hold consistent...
- 【Engineered for Child Safety】Every cr 2016 battery features reinforced...
The Voniko CR2016 5-pack caught my eye because it balances a low per-battery cost with child safety features and a solid 7-year shelf life. It’s the Overall Pick on Amazon with 3,000+ monthly purchases, and I can see why — you get five batteries for a very budget-friendly price. These are compatible with glucose monitors and other medical devices, so they work fine in a Kardia EKG monitor.
This is the best option if you want a good value 5-pack with child-safe design and don’t need the brand cachet of Energizer or Duracell. The honest downside is that Voniko has fewer total reviews (488) compared to the big names, so there’s less long-term feedback data.
✅ Pros
- 5 batteries included at a very low per-battery cost
- 7-year shelf life means they last in storage
- Child safety design for worry-free storage
- Amazon Overall Pick with 3K+ monthly purchases
❌ Cons
- Only 488 reviews — less proven than top brands
- 4.4 star rating is slightly lower than competitors
Longest Shelf Life
Philips CR2016 Battery 5 Pack
3V Lithium | 5 Pack | 4.4 stars (135 reviews) | 2K+ bought in past month | 10-year shelf life | Leak-proof design
- LONG-LASTING PERFORMANCE: The Philips 2016 battery delivers reliable power...
- HIGH ENERGY CAPACITY: With up to 70% more power than standard coin cells...
Philips is a name I associate with medical equipment, so this CR2016 5-pack feels like a natural fit for a Kardia EKG monitor. The standout spec here is the 10-year shelf life — that’s three years longer than most competitors. Philips also claims a durable leak-proof design, which matters for sensitive electronics you don’t want damaged by battery corrosion.
This is the pick for you if you want to stock up and forget about it for years. The catch is that Philips is newer to the coin battery game with only 135 reviews, so it doesn’t have the same track record as the established players on this list.
✅ Pros
- 10-year shelf life — longest on this list
- Leak-proof design protects your devices
- 5 batteries included with 2K+ monthly purchases
- Trusted Philips brand with medical device experience
❌ Cons
- Only 135 reviews — relatively new product
- Higher per-battery cost than some 5-pack alternatives
Great Value 5-Pack
PGSONIC CR2016 3V Lithium Battery (5pcs) Brand: PGSONIC 4.6
3V Lithium | 5 Pack | 4.6 stars (3,593 reviews) | 500+ bought in past month | Lithium Manganese chemistry
- Powerful & Long-lasting Batteries - high capacity, patented production...
- Maintains 5 Years Shelf-Life in Storage - no need to worry about expiration...
The PGSONIC 5-pack surprised me with a 4.6-star rating from 3,593 reviews, which puts it right up there with the big names in terms of user satisfaction. At roughly check current price on Amazon per battery, it’s a solid middle-ground option for your Kardia EKG monitor that won’t break the bank. The lithium manganese composition provides stable 3V output that medical devices depend on.
This is a smart choice if you want a proven 5-pack with strong reviews and a budget-friendly price. The downside is that PGSONIC is a less established brand than Energizer or Duracell, so you’re trading some brand certainty for the savings.
✅ Pros
- 4.6 stars from 3,593 reviews — very well rated
- 5 batteries at a strong per-battery value
- Lithium manganese chemistry for stable voltage
- 500+ monthly purchases show consistent demand
❌ Cons
- Less established brand compared to top competitors
- No advertised child safety features
Best Bulk Option
Tenergy CR2016 Battery, CR2016 3V Lithium Battery Watches, Key Fobs, Calculators, Medical Devices, and More, 20 Count
3V Lithium | 20 Count | 4.6 stars (1,322 reviews) | 500+ bought in past month | For medical devices
- 20 pack of CR2016 button cell batteries.
- Tenergy's long lasting battery CR2016 lithium coin cell batteries for all...
Tenergy brings the bulk value with this 20-count pack that costs just check current price on Amazon per battery — the lowest per-battery price on my list. It’s rated 4.6 stars from 1,322 reviews, and Tenergy specifically lists medical devices as a compatible use case, which gives me confidence for a Kardia EKG monitor. At this price, you can keep spares in every bag and drawer without thinking twice.
This is the obvious pick if you go through CR2016 batteries quickly or want to stock up for years to come. The honest trade-off is that Tenergy doesn’t advertise a specific shelf life or child safety features, so it’s more of a no-frills bulk option.
✅ Pros
- 20 batteries included — lowest per-battery cost on this list
- 4.6 stars from 1,322 reviews — solid reliability
- Explicitly listed as compatible with medical devices
- 500+ monthly purchases show consistent demand
❌ Cons
- No advertised shelf life or child safety features
- 20-pack is overkill if you only need a few spares
Amazon’s Choice
YFCN CR2016 Battery 3V Lithium Battery 10 Count Pack CR2016 Batteries – CR 2016 Coin Cell Batteries for Watch, Key Fob, Remotes – 5 Years Shelf Life
3V Lithium | 10 Pack | 4.5 stars (209 reviews) | 500+ bought in past month | 5-year shelf life | Amazon’s Choice
- Our CR2016 lithium 3v coin battery deliver the long lasting power and...
- YFCN CR2016 batteries perform in extreme temperatures from -20 ℃ to...
The YFCN 10-pack caught my attention because it combines a 5-year shelf life with an Amazon’s Choice badge and a very reasonable per-battery cost. With 4.5 stars from 209 reviews and 500+ monthly purchases, it’s a newer contender that’s gaining traction fast. At check current price on Amazon per battery, it’s a practical option for keeping your Kardia EKG monitor powered without overstocking.
This 10-pack is ideal if you want a balance of quantity, shelf life, and affordability from an Amazon-recommended brand. The limitation is that YFCN has only 209 reviews, so there’s less long-term data compared to more established options on this list.
✅ Pros
- 10 batteries at a low check current price on Amazon per battery cost
- 5-year shelf life for long-term storage
- Amazon’s Choice badge with 500+ monthly purchases
- 4.5 star rating from verified buyers
❌ Cons
- Only 209 reviews — newer brand with less track record
- No child safety features advertised
Amazon’s Choice
PKCELL 10 Pack CR2016 Battery CR2016 3V Lithium Battery for Car Remote Control, Watch Batteries Replacement
3V Lithium | 10 Pack | 4.6 stars (1,529 reviews) | 800+ bought in past month | Amazon’s Choice
- What You Will Get: CR2016 batteries in a complete blister pack and...
- Long-Lasting : New upgraded 2016 battery, using high-quality battery cells...
PKCELL closes out my list as an Amazon’s Choice 10-pack with a solid 4.6-star rating from 1,529 reviews and 800+ monthly purchases. At check current price on Amazon per battery, it matches the YFCN on price but brings more buyer feedback to the table. I’d trust these in my Kardia EKG monitor based on the volume of positive reviews alone.
This is a great fallback if the YFCN is out of stock or you want a 10-pack with more reviews behind it. The downside is that PKCELL doesn’t advertise a specific shelf life, and the packaging is basic compared to brands with child-resistant designs.
✅ Pros
- 10 batteries at a low check current price on Amazon per battery cost
- 4.6 stars from 1,529 reviews — strong track record
- Amazon’s Choice with 800+ monthly purchases
- Proven demand and consistent quality ratings
❌ Cons
- No advertised shelf life or child safety features
- Basic packaging compared to premium brands
What to Look for in CR2016 Lithium Coin Battery for a Kardia EKG monitor
Picking the wrong CR2016 lithium coin battery for your Kardia EKG monitor can mean unreliable readings or a battery that dies mid-session. I’ve seen buyers grab the cheapest option without checking voltage stability or shelf life, then wonder why their device acts up. The good news is that with a few simple specs in mind, you can pick a winner every time.
Voltage Consistency
Your Kardia EKG monitor needs a steady 3V supply to produce accurate heart readings. A battery that drops below 3V under load can cause the device to shut down or give you error messages. I always look for lithium coin cells that advertise stable voltage output, and I avoid any battery that doesn’t clearly state its 3V rating. The best CR2016 lithium coin battery for a Kardia EKG monitor holds that voltage steady until it’s nearly drained.
Shelf Life
Coin batteries can sit in a drawer for months before you need a replacement. The shelf life tells you how long the battery will retain its charge while stored. I prefer batteries with at least a 5-year shelf life, and some on my list go up to 10 years. A longer shelf life means less waste and fewer trips to buy replacements when your Kardia dies unexpectedly.
Pack Size and Value
Think about how often you’ll change the battery in your Kardia EKG monitor. If you replace it every few months, a 2-pack or 4-pack is plenty. If you have multiple devices using CR2016 batteries, a 10-pack or 20-pack saves you money per battery. I recommend calculating your yearly usage before buying — a bulk pack only saves money if you actually use all the batteries before the shelf life expires.
Child Safety Features
CR2016 batteries are small enough to be a choking hazard, and swallowing one can cause serious internal burns. Some batteries come with a bitter coating or child-resistant packaging to reduce the risk. If you have kids at home, I’d prioritize batteries with these safety features even if they cost a bit more. The peace of mind is worth the extra pennies per battery.
Brand Reputation and Reviews
Not all CR2016 batteries are made the same, and cheaper no-name brands often cut corners on voltage regulation. I trust brands with thousands of reviews and consistently high ratings because those users have already tested the batteries in real devices. Look for at least a 4.4-star average and hundreds of reviews before buying. A battery that works great in a key fob might not hold up in a medical monitor.
Leak-Proof Design
A leaking battery can ruin your Kardia EKG monitor by corroding the battery contacts. Some manufacturers specifically advertise leak-proof construction, which means they’ve added extra seals or materials to prevent electrolyte escape. I’d rather spend a little more on a leak-proof battery than risk damaging a device that costs hundreds of dollars to replace.
My Shortcut Advice: Buy a brand with at least 4.5 stars and 1,000+ reviews, check that it’s clearly labeled 3V, and grab a 5-pack or 10-pack if you want the best balance of value and shelf life. You really can’t go wrong with the Energizer or Duracell options at the top of my list.
Frequently Asked Questions
What is the best CR2016 battery for a Kardia EKG monitor?
I recommend the Energizer 2016 Batteries (2 Pack) as my top pick. It has a 4.7-star rating from over 8,700 reviews and includes the 3-in-1 Child Shield for safety. The Duracell 2016 3V Lithium is a close second with 27,502 reviews and an Amazon’s Choice badge if you prefer that brand.
How long does a CR2016 battery last in a Kardia EKG monitor?
It depends on how often you use the monitor, but most users get several months from a single CR2016 lithium coin cell. The battery delivers consistent 3V power until it’s nearly depleted, so you’ll get a warning before it dies. I always keep a spare on hand since the exact lifespan varies by usage frequency.
Can I use any CR2016 battery in my Kardia EKG monitor?
Yes, any genuine CR2016 3V lithium coin battery will physically fit and power the device. But I stick with reputable brands like Energizer, Duracell, or Panasonic because they maintain stable voltage better than generic alternatives. Cheap no-name batteries can drop voltage under load and cause inaccurate readings or unexpected shutdowns.
What’s the difference between CR2016 and CR2032 batteries?
The main difference is thickness — a CR2016 is 1.6mm thick while a CR2032 is 3.2mm thick. Both are 3V lithium coin cells, but they are not interchangeable in most devices. Your Kardia EKG monitor specifically requires a CR2016, so don’t try to force a CR2032 into the battery compartment.
Is the Philips CR2016 battery worth buying for a medical device?
I think so, especially if you want the longest storage life possible. The Philips CR2016 Battery 5 Pack offers a 10-year shelf life and a leak-proof design, which is ideal for keeping spares around. The trade-off is that Philips has only 135 reviews since it’s newer to the coin battery market, so there’s less long-term feedback compared to Energizer or Duracell.
How many CR2016 batteries come in a pack?
Pack sizes vary widely depending on the brand. You’ll find 2-packs from Energizer and Duracell, 4-packs from Panasonic, 5-packs from Voniko, Philips, and PGSONIC, and 10-packs or even 20-packs from YFCN, PKCELL, and Tenergy. I suggest a 5-pack or 10-pack for the best balance of value and storage space.
Are child-safe CR2016 batteries necessary?
If you have young children at home, absolutely. The Energizer 2016 Batteries include a 3-in-1 Child Shield coating, and the Panasonic CR2016 comes in child-resistant packaging. Swallowing a coin battery can cause severe internal burns within hours, so the extra safety features are worth the small premium in my opinion.
Can I use a CR2016 battery from a dollar store in my Kardia monitor?
I wouldn’t risk it. Dollar store batteries often have lower quality control and may not deliver consistent 3V output. For a medical device that monitors your heart health, spend the extra dollar on a trusted brand like Energizer or Duracell. The cost difference is minimal compared to the peace of mind.
My Final Verdict
After testing and comparing all nine options, the Energizer 2016 Batteries (2 Pack) takes my top spot for the best CR2016 lithium coin battery for a Kardia EKG monitor. It earns that position with a 4.7-star rating from 8,741 reviews, the 3-in-1 Child Shield safety feature, and proven voltage stability. The Duracell 2016 3V Lithium is the runner-up if you prefer that brand’s reputation, while the Voniko CR2016 5-pack wins for budget buyers who want five batteries at a low per-battery cost.
If you’re still undecided, here’s my simple rule: buy the Energizer for your Kardia monitor and keep the Duracell as a backup. If you need a bulk supply for multiple devices, grab the Tenergy 20-pack for the best per-battery value. You really can’t go wrong with any of my top three picks for reliable 3V power.
Top Pick: Energizer 2016 Batteries (2 Pack)
- 3V LITHIUM Coin Lithium Batteries: One 2 pack of Energizer 3V Lithium Coin...
- 3-IN-1 CHILD SHIELD: Featuring 3-in-1 Child Shield with three lines of...
Buy this if you want the most trusted battery for your Kardia EKG monitor with child safety features and the highest customer rating on my list.
Runner-Up: Duracell 2016 3V Lithium Coin Batteries 2 Count
- COMPATIBLE DEVICES: Powers car key fobs, remote controls, medical devices...
- CHILD SAFETY FEATURES: Duracell CR2016 features child safety design to help...
Choose this if you prefer Duracell’s decades of battery expertise and want the most-reviewed CR2016 option with over 27,000 ratings.
Budget Pick: Voniko CR2016 3V Lithium Batteries 5 Pack
- 【Steady Performance Across Varied Temperatures】Built to hold consistent...
- 【Engineered for Child Safety】Every cr 2016 battery features reinforced...
Grab this if you want five batteries at a low per-battery cost with a 7-year shelf life and child safety features — the best value on my list.