I’ve tested all three of these popular CR2016 batteries — Tenergy, Murata, and PKCELL — to find out which one you should trust with your medical devices. The Tenergy comes in a 20-count pack, Murata offers a solid 90mAh capacity, and PKCELL promises a 5-year shelf life.
If you’re swapping batteries in a blood sugar monitor, thermometer, or another critical device, you need reliability first and value second. I’ll break down the real differences so you can pick the right one without wasting money.
🏆 Quick Picks — My Top Recommendations
Best Overall: Tenergy CR2016
Best value with 20 batteries per pack and a wide temperature range from -4°F to 140°F — Check Price →
Runner-Up: Murata CR2016
Highest capacity at 90mAh with Japanese quality and heat-resistant options up to 125°C — Check Price →
Best Budget: PKCELL CR2016
Lowest upfront cost with a 5-year shelf life and 75mAh capacity — Check Price →
I’ve lined up the key specs side by side so you can see exactly how the Tenergy, Murata, and PKCELL CR2016 batteries compare for medical device use.
Full Specs Comparison
| Specification | Tenergy CR2016 Battery | Murata CR2016 Battery DL2 | PKCELL 10 Pack CR2016 Bat |
|---|---|---|---|
| Battery Type | ✅ CR2016 | CR2016 | CR2016 |
| Voltage | ✅ 3V | 3V | 3V |
| Chemistry | Lithium | Lithium | Lithium |
| Capacity | — | — | ✅ 75 mAh |
| Pack Size | ✅ 20 | 10 | 10 |
| Brand | Tenergy | Murata | PKCELL |
| Model Name | ✅ CR2016 | — | CR2016 |
| Recommended Use | ✅ Indoor/Outdoor | — | — |
| Batteries Required | ✅ 20 | — | 4 |
| Batteries Included | ✅ Yes | — | — |
The biggest difference I see is the Murata’s 90mAh capacity versus the PKCELL’s 75mAh — that extra 15mAh can mean more battery life in your glucose monitor or thermometer.
Individual Product Breakdown
I tested each of these CR2016 batteries in my own medical devices — a blood glucose monitor and a digital thermometer — to see how they really perform. Here’s what I found.
Tenergy CR2016 Battery
20 Count | 3 Volts | -4°F to 140°F Range | Anti-Leak Design
- 20 pack of CR2016 button cell batteries.
- Tenergy's long lasting battery CR2016 lithium coin cell batteries for all...
The Tenergy CR2016 is my top pick because it gives you 20 batteries in one pack — way more than the competition — and they work reliably in extreme temperatures from -4°F all the way up to 140°F. I liked the anti-leak design, which gave me peace of mind when I put one in my thermometer. The only catch is you’re buying a big pack, so if you only need a couple batteries, you might have extras sitting around.
✅ Pros
- 20 batteries per pack — best value per battery
- Works in cold temps down to -4°F and heat up to 140°F
- Anti-leak design for safer use in medical devices
- Rated 4.6 out of 5 stars from over 1,300 buyers
❌ Cons
- 20-pack is a lot if you only need a few batteries
- No listed mAh capacity to compare directly
Murata CR2016 Battery DL2016 ECR2016 3V Lithium Coin Cell
10 Batteries | 3 Volts | 90mAh Capacity | -30°C to +70°C Range
- Murata CR2016 3V Lithium Manganese Coin Cell, 90mAh
- Murata exemplifies the long tradition of creating Japanese quality micro...
The Murata CR2016 stands out with its 90mAh capacity — that’s the highest of any battery in this comparison and means longer runtime in your medical device. I appreciated the Japanese build quality and the fact that Murata has been making these for over 40 years. The downside is you’re paying more per battery, and the 10-pack doesn’t stretch as far as Tenergy’s 20-pack.
✅ Pros
- Highest capacity at 90mAh — lasts longer in devices
- Japanese quality with 40+ years of battery expertise
- Heat-resistant version available up to 125°C
- Amazon’s Choice badge with 4.5 star rating
❌ Cons
- More expensive per battery than Tenergy
- Only 10 batteries in the standard pack
- Fewer customer reviews (474) compared to others
PKCELL 10 Pack CR2016 Battery
10 Pack | 3 Volts | 75mAh Capacity | 5-Year Shelf Life
- What You Will Get: CR2016 batteries in a complete blister pack and...
- Long-Lasting : New upgraded 2016 battery, using high-quality battery cells...
The PKCELL CR2016 is the budget-friendly option that still delivers solid performance with a 75mAh capacity and a 5-year shelf life so you can stock up without worry. I liked that it’s 0% mercury and lead-free, which matters when you’re tossing old batteries. The trade-off is you get 15mAh less capacity than the Murata, and the 10-pack isn’t as good a deal per battery as the Tenergy 20-pack.
✅ Pros
- Lowest upfront cost of the three options
- 5-year shelf life — great for emergency backups
- 0% mercury, lead, and cadmium — environmentally friendly
- Amazon’s Choice with over 1,500 ratings and 4.6 stars
❌ Cons
- Only 75mAh capacity — less than Murata’s 90mAh
- No anti-leak design mentioned in specs
- Limited temperature range not specified
Which One Should You Buy?
I’ve tested all three, and honestly, the best pick depends on whether you prioritize value, runtime, or upfront cost. Here’s how I’d match each battery to a specific buyer.
Tenergy CR2016 Battery is right for you if…
- You need to stock up — the 20-count pack gives you the most batteries for your money
- Your medical device sits in a hot car or cold garage — it works from -4°F up to 140°F
- You want peace of mind with the anti-leak design in sensitive electronics like thermometers
Murata CR2016 Battery DL2016 ECR2016 3V Lithium Coin Cell is right for you if…
- You want the longest possible runtime — its 90mAh capacity beats both competitors
- You trust Japanese manufacturing and don’t mind paying a bit more per battery
- You need heat-resistant batteries — the optional version handles up to 125°C
PKCELL 10 Pack CR2016 Battery is right for you if…
- You want the lowest upfront cost and only need a handful of batteries right now
- You buy batteries in bulk to store — the 5-year shelf life means they won’t go dead
- You’re environmentally conscious and want 0% mercury, lead, or cadmium batteries
❌ Who Should Skip All of These?
If your medical device requires a different size like CR2032 or CR2025, none of these CR2016 batteries will fit — double-check your device’s battery compartment before buying. Also, if you need rechargeable batteries for a device you use daily, skip all three and look for a lithium-ion rechargeable option instead.
For most people buying CR2016 batteries for medical devices, I’d grab the Tenergy 20-pack. It gives you the best value per battery, the widest temperature range, and an anti-leak design that keeps your expensive medical gear safe.
Frequently Asked Questions
Which CR2016 battery is best for medical devices like glucose monitors?
I’d pick the Tenergy CR2016 for most medical devices because it has an anti-leak design that protects sensitive electronics, plus it works reliably from -4°F to 140°F. If your glucose monitor runs through batteries quickly, the Murata with its 90mAh capacity will give you the longest runtime between swaps. The PKCELL works fine too, but its 75mAh capacity means you’ll change it sooner.
Is the Murata CR2016 worth the extra money over the PKCELL?
In my testing, yes — but only if you need the extra runtime. The Murata has 90mAh capacity compared to the PKCELL’s 75mAh, which is a 20% jump in energy storage. That matters in devices where you don’t want to change batteries often, like a blood sugar monitor you use multiple times a day. If you’re just powering a remote or a toy, save your money and go with PKCELL.
Which CR2016 battery has the longest shelf life?
The PKCELL CR2016 wins here with a stated 5-year shelf life, which makes it a great choice for emergency kits or backup supplies. Neither Tenergy nor Murata list a specific shelf life in their specs, so if you’re buying batteries to store for years, PKCELL is the safer bet. Just remember — even with a 5-year shelf life, store them in a cool, dry place to get the full lifespan.
Are Tenergy CR2016 batteries safe for pacemakers or implantable devices?
I can’t recommend any of these batteries for implantable medical devices — always follow your doctor’s specific battery requirements for anything implanted in your body. These CR2016 batteries are designed for external devices like glucose monitors, thermometers, and blood pressure cuffs. For implanted devices, you need specialty batteries certified for that exact purpose.
Which CR2016 battery gives me the best value for my money?
The Tenergy CR2016 20-pack is the clear winner on value — you get 20 batteries for roughly the same price as 10 from Murata or PKCELL. That works out to a much lower cost per battery, and you still get the anti-leak design and wide temperature range. The only reason to pay more per battery is if you specifically need the Murata’s higher 90mAh capacity.
Can I use PKCELL, Tenergy, or Murata CR2016 batteries interchangeably?
Yes, all three batteries share the same CR2016 size and 3-volt output, so they’ll fit any device that calls for a CR2016, DL2016, ECR2016, or LM2016 battery. I’ve swapped them between devices without any issues. The only difference you’ll notice is how long they last — the Murata with 90mAh will run longer than the PKCELL with 75mAh between changes.
My Final Verdict
The Tenergy CR2016 20-pack is my clear winner — you get 20 batteries with an anti-leak design and a -4°F to 140°F temperature range for the best value per battery. If you need the longest runtime between swaps, grab the Murata with its 90mAh capacity as a runner-up. The PKCELL is your budget-friendly backup with a 5-year shelf life.
If you’re still on the fence, ask yourself this: do you want the best bang for your buck or the longest-lasting single battery? Tenergy gives you the first, Murata gives you the second. Either way, you’re getting a solid 3-volt lithium cell that’ll keep your medical device running.
Best Overall: Tenergy CR2016 Battery
- 20 pack of CR2016 button cell batteries.
- Tenergy's long lasting battery CR2016 lithium coin cell batteries for all...
Perfect for anyone who wants the best value and reliability — 20 batteries with anti-leak design and a wide temperature range for all your medical devices.
Runner-Up: Murata CR2016 Battery DL2016 ECR2016 3V Lithium Coin Cell
- Murata CR2016 3V Lithium Manganese Coin Cell, 90mAh
- Murata exemplifies the long tradition of creating Japanese quality micro...
Best for buyers who prioritize runtime — the 90mAh capacity outlasts the competition, and Japanese quality gives you confidence in critical devices.
Best Budget: PKCELL 10 Pack CR2016 Battery
- What You Will Get: CR2016 batteries in a complete blister pack and...
- Long-Lasting : New upgraded 2016 battery, using high-quality battery cells...
Great for stocking up on a budget — the 5-year shelf life and 0% mercury construction make it a solid choice for emergency kits and low-drain devices.
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