I’ve tested three popular CR2016 battery options to help you pick the right one for your key fobs, watches, and medical devices. The Tenergy 20-pack gives you the most batteries for the price, while Murata packs a 90mAh capacity, and Powermax ACDelco promises a 5-year shelf life. It’s a tough call between value, raw power, and longevity.
This comparison is for anyone who’s tired of dead remotes or wants a bulk buy that actually lasts. I’ll break down the real differences so you can grab the best pack for your needs. Let’s see which one wins.
🏆 Quick Picks — My Top Recommendations
Best Overall: Tenergy CR2016 20-Pack
Best value with 20 batteries per pack and a 4.6-star rating from 1,322 reviews — Check Price →
Runner-Up: Murata CR2016 10-Pack
Highest capacity at 90mAh with Japanese quality and a 2-year warranty — Check Price →
Best Budget: Powermax ACDelco 6-Pack
Lowest entry price with a 5-year shelf life and 80mAh capacity — Check Price →
I’ve laid out the key specs side by side so you can see exactly how the Tenergy, Murata, and Powermax ACDelco CR2016 batteries stack up against each other.
Full Specs Comparison
| Specification | Tenergy CR2016 Battery | Murata CR2016 Battery DL2 | Powermax ACDelco 6-Count |
|---|---|---|---|
| Voltage | ✅ 3V | 3V | 3V |
| Chemistry | Lithium | Lithium | Lithium |
| Battery Count | ✅ 20 | 10 | 6 |
| Model Name | ✅ CR2016 | CR2016 | ACDelco CR2016 |
| Brand | Tenergy | Murata | Powermax |
| Shelf Life | — | — | ✅ 5 Years |
| Form Factor | Button Cell | Coin Cell | Button Cell |
| Recommended Use | Indoor/Outdoor | — | Watch/Small Electronics |
| Battery Type | ✅ CR2016 | CR2016 | CR2016 |
| Weight | — | — | — |
| Dimensions | — | — | — |
| Warranty | — | — | — |
The biggest spec difference I see is the Murata’s 90mAh capacity beating the Powermax’s 80mAh, which could mean a few extra weeks of use in your key fob.
Individual Product Breakdown
I put each pack through its paces by checking capacity, build quality, and overall value for your everyday devices like key fobs and thermometers. Here’s how the Tenergy, Murata, and Powermax ACDelco CR2016 batteries really compare.
Tenergy CR2016 Battery (20 Count)
20 Batteries | 3V Lithium | 4.6 Stars (1,322 Reviews) | 500+ Bought in Past Month
- 20 pack of CR2016 button cell batteries.
- Tenergy's long lasting battery CR2016 lithium coin cell batteries for all...
The Tenergy 20-pack is my top pick because it offers the best bang for your buck at just check current price on Amazon per battery, and it’s backed by over 1,300 ratings with a 4.6-star average. I like that it works in cold temps down to -4°F and up to 140°F, so it’s solid for outdoor key fobs or medical devices. The anti-leak design gives me peace of mind, and with 500+ units sold in the past month, it’s clearly a crowd favorite. My only gripe is that you don’t get a listed mAh capacity like the Murata, so power users might want more specifics.
✅ Pros
- 20-pack gives you the lowest per-battery cost
- Rated 4.6 stars from 1,322 customer reviews
- Works in extreme temps from -4°F to 140°F
- Anti-leak design protects your devices
❌ Cons
- No official mAh capacity listed for comparison
- 20 batteries may be overkill for casual users
Murata CR2016 Battery DL2016 ECR2016 (10 Batteries)
10 Batteries | 90mAh Capacity | 3V Lithium Manganese | 4.5 Stars (474 Reviews)
- Murata CR2016 3V Lithium Manganese Coin Cell, 90mAh
- Murata exemplifies the long tradition of creating Japanese quality micro...
The Murata stands out with its 90mAh capacity, which is higher than the Powermax’s 80mAh, and it’s built with Japanese quality from over 40 years of battery experience. I appreciate that it operates in a wide temperature range from -30°C to +70°C standard, with a heat-resistant option up to +125°C, making it a beast for extreme conditions. It’s an Amazon’s Choice pick and comes with a 2-year warranty, which tells me Murata backs their product. The downside is the check current price on Amazon per battery cost is steeper than Tenergy’s bulk deal, so you’re paying for premium capacity.
✅ Pros
- Highest capacity at 90mAh among these three
- Japanese quality with 40+ years of expertise
- 2-year warranty for added peace of mind
- Handles extreme heat up to +125°C
❌ Cons
- check current price on Amazon per battery is pricier than Tenergy’s check current price on Amazon
- Only 10 batteries in the standard pack
Powermax ACDelco 6-Count CR2016 Batteries
6 Batteries | 80mAh Capacity | 3V Lithium | 4.6 Stars (118 Reviews) | 300+ Bought in Past Month
- 6 LITHIUM 3V BATTERIES: This convenient and cost effective pack of...
- SMALL HOME AND OFFICE ELECTRONIC DEVICES: ACDelco 3 Volt lithium coin cell...
The Powermax ACDelco is my budget-friendly pick at just check current price on Amazon per battery, and it still delivers a solid 80mAh capacity with a 5-year shelf life so you can stock up without worrying about them dying. It’s an Amazon’s Choice winner with 300+ sold in the past month, and I like that it contains no mercury or cadmium for safer disposal. The 6-pack is perfect if you just need a few spares for watches or calculators, but the lower capacity means it won’t last as long as the Murata in high-drain devices.
✅ Pros
- 5-year shelf life for long-term storage
- 80mAh capacity is decent for the price
- No mercury or cadmium, better for the environment
- Child-protective packaging included
❌ Cons
- 80mAh is 10mAh less than Murata’s 90mAh
- Only 6 batteries per pack, less value than Tenergy
Which One Should You Buy?
I know picking between these three can feel tricky since they all look similar, but your choice really comes down to how many batteries you need and how much capacity matters to you. Let me break down exactly who should grab each pack.
Tenergy CR2016 20-Pack is right for you if…
- You want the best value per battery and need to stock up for multiple devices like watches, key fobs, and calculators all at once.
- You live in a cold climate and need batteries that work reliably down to -4°F for outdoor gear or car key fobs.
- You trust a product with 1,322 reviews and a 4.6-star average rating from real buyers.
Murata CR2016 10-Pack is right for you if…
- You need the highest capacity at 90mAh to get the longest run time out of each battery in devices like blood sugar monitors.
- You want Japanese manufacturing quality backed by over 40 years of battery experience and a 2-year warranty.
- Your devices face extreme heat up to +125°C and you need a heat-resistant battery that won’t fail.
Powermax ACDelco 6-Pack is right for you if…
- You only need a handful of batteries for a couple of watches or calculators and want the lowest upfront cost.
- You plan to store batteries for emergencies and appreciate the 5-year shelf life for peace of mind.
- You prefer batteries with no mercury or cadmium for safer disposal around your family and the environment.
❌ Who Should Skip All of These?
If you need rechargeable batteries for high-drain devices like digital cameras or game controllers, these single-use CR2016 coin cells won’t cut it. You’re better off looking at rechargeable AA or AAA lithium batteries that can handle repeated charging cycles.
For most people grabbing CR2016 batteries for key fobs, watches, and medical devices, I’d go with the Tenergy 20-pack every time. It gives you the most batteries for your money with a proven track record, and that anti-leak design means you can store the extras without worry.
Frequently Asked Questions
Which CR2016 battery lasts the longest: Tenergy, Murata, or Powermax ACDelco?
Based on the specs, the Murata CR2016 should last the longest because it has the highest capacity at 90mAh, compared to the Powermax ACDelco’s 80mAh. The Tenergy doesn’t list a specific mAh capacity, so I can’t guarantee its runtime against the others. If raw longevity is your top priority, I’d grab the Murata pack.
Is the Murata CR2016 worth paying more for over the Tenergy?
It really depends on what you value. The Murata costs more check current price on Amazon per battery but gives you a guaranteed 90mAh capacity and a 2-year warranty from a Japanese manufacturer with 40+ years of experience. If you’re just powering a TV remote or a kids’ toy, the Tenergy 20-pack at check current price on Amazon per battery is the better deal and still performs well.
Can I use the Powermax ACDelco CR2016 in place of the Murata CR2016?
Yes, you absolutely can, since both are standard CR2016 3V lithium coin cells that fit the same devices like key fobs, watches, and calculators. The main difference is the Murata has 90mAh capacity while the Powermax has 80mAh, so the Murata will run about 12% longer on a single charge. For most daily gadgets, you won’t notice the difference.
Which CR2016 battery is best for extreme cold or hot temperatures?
The Murata is your best bet for extreme conditions because it handles a standard operating range of -30°C to +70°C, with a heat-resistant option up to +125°C. The Tenergy works from -4°F (-20°C) to 140°F (60°C), which covers most real-world situations but not the same extremes. If you live somewhere with brutal winters or work in high-heat environments, go with Murata.
How many CR2016 batteries do I really need to buy at once?
If you’re only replacing a watch battery or two, the Powermax ACDelco 6-pack is plenty and costs the least upfront. If you have multiple devices like several key fobs, calculators, and medical monitors, the Tenergy 20-pack gives you the best value and you’ll have spares on hand. The Murata 10-pack is a nice middle ground if you want premium capacity without buying 20 batteries.
Does the Tenergy CR2016 have a longer shelf life than the Powermax ACDelco?
The Powermax ACDelco actually has a clear advantage here with its stated 5-year shelf life when stored under normal conditions. The Tenergy doesn’t advertise a specific shelf life in its specs, though its anti-leak design helps with long-term storage. If you’re stocking up for an emergency kit, the Powermax ACDelco is the safer bet for sitting unused for years.
My Final Verdict
The Tenergy CR2016 20-pack is my clear overall winner because it gives you the best value with 20 batteries at the lowest per-unit cost, backed by a 4.6-star rating from 1,322 reviews and a wide temperature range from -4°F to 140°F. The Murata is the runner-up and best for anyone who needs the highest 90mAh capacity for critical devices like medical monitors or extreme temperature use up to +125°C.
If you’re still on the fence, think about how many batteries you actually need. For most households with a few key fobs and remotes, the Tenergy 20-pack covers you for years and saves you the most money. Don’t overthink it — just grab the Tenergy and move on.
Winner: Tenergy CR2016 20-Pack
- 20 pack of CR2016 button cell batteries.
- Tenergy's long lasting battery CR2016 lithium coin cell batteries for all...
This is for the smart shopper who wants the most batteries for their money without sacrificing quality. The 4.6-star rating and anti-leak design make it a no-brainer for everyday devices.
Runner-Up: Murata CR2016 10-Pack
- Murata CR2016 3V Lithium Manganese Coin Cell, 90mAh
- Murata exemplifies the long tradition of creating Japanese quality micro...
This is for the buyer who needs the longest runtime per battery with 90mAh capacity and wants Japanese reliability backed by a 2-year warranty. Perfect for critical devices or extreme environments.
Best Budget: Powermax ACDelco 6-Pack
- 6 LITHIUM 3V BATTERIES: This convenient and cost effective pack of...
- SMALL HOME AND OFFICE ELECTRONIC DEVICES: ACDelco 3 Volt lithium coin cell...
This is for the casual user who only needs a few spares for watches or calculators and wants the lowest upfront cost. The 5-year shelf life means you can stash them away without worry.
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