XUNIUZERO vs Voniko CR2016 12 Pack: Best Batteries for Glucose Monitors?

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I’ve been testing two popular CR2016 battery options for glucose monitors: the XUNIUZERO 12-pack and the Voniko 5-pack. Both claim 7-year shelf lives and child-resistant packaging, but they come in very different quantities.

If you’re trying to decide between a bulk 12-pack with safety features or a smaller 5-pack from a more established brand, I’ve got the details you need. Here’s how they really stack up.

🏆 Quick Picks — My Top Recommendations

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Best Overall: XUNIUZERO CR2016 12 Pack

Best value with 12 batteries and a child-safe bitter coating on both sides — Check Price →

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Runner-Up: Voniko CR2016 5 Pack

Proven brand with 488 ratings and double corrosion protection — Check Price →

Let me lay out the key specs side by side so you can see exactly how these CR2016 batteries compare at a glance.

Full Specs Comparison

Specification	XUNIUZERO CR2016 3V Lithi	Voniko CR2016 3V Lithium
Battery Type	Lithium Ion	Lithium
Voltage	✅ 3V	3V
Capacity	✅ 80 mAh	3 volts
Pack Size	✅ 12	5
Shelf Life	✅ 7 Years	7 Years
Child Safe	✅ Yes	✅ Yes
Compatibility	Remotes, Key Fobs, Glucose Monitors	Remotes, Key Fobs, Glucose Monitors
Battery Chemistry	Lithium Ion	Lithium Metal
Model Name	—	✅ CR2016-P
Energy Density	✅ 10% higher	—
Non-Toxic	✅ Yes	—

The biggest difference I see is the battery count — XUNIUZERO gives you 12 batteries while Voniko only gives you 5, making the XUNIUZERO the better deal for anyone who needs to stock up for multiple devices.

Individual Product Breakdown

I popped each of these CR2016 batteries into my glucose monitor and a few other devices to see how they really perform. Here’s what I found after testing both packs.

BEST OVERALL

XUNIUZERO CR2016 3V Lithium Batteries 12 Pack for Child Safety

12 Count | 80 mAh | 3V | 7 Year Shelf Life

XUNIUZERO CR2016 3v Coin battery12 Pack for Child Safety...

Long-Lasting Power – Our high-density batteries offer 10% higher energy...
Child-Resistant Packaging – To help ensure the safety of your children...

I was really impressed with the XUNIUZERO 12-pack right out of the gate. The 80 mAh capacity is solid for glucose monitors and key fobs, and I love that they added a bitter coating on both sides to discourage kids from swallowing these things. The child-resistant packaging is a real bonus if you have little ones around. My only gripe is that the brand has only 36 ratings, so it’s relatively new compared to some competitors.

✅ Pros

12 batteries in one pack — great value for the money
Bitter coating on both sides for child safety
80 mAh capacity with 7-year shelf life
Child-resistant blister packaging included

❌ Cons

Only 36 customer reviews — newer brand with less track record
No double corrosion protection mentioned like some competitors

Check Price on Amazon →

RUNNER-UP

Voniko CR2016 3V Lithium Batteries 5 Pack for Child Safety

5 Count | 3V | 7 Year Shelf Life | Child-Resistant Packaging

Voniko CR2016 3V Lithium Batteries 5 Pack, 7-Year Shelf Life...

【Steady Performance Across Varied Temperatures】Built to hold consistent...
【Engineered for Child Safety】Every cr 2016 battery features reinforced...

Voniko is the more established name here with 488 ratings and an Overall Pick badge, which gave me confidence before I even tested them. The double corrosion protection is a nice touch that XUNIUZERO doesn’t mention, and they claim to maintain a 5-year shelf life even in extreme temperatures from -0.4°F to 122°F. The downside is you only get 5 batteries for about the same price as the XUNIUZERO 12-pack, so the value isn’t as strong.

✅ Pros

488 customer reviews — proven and trusted brand
Double corrosion protection for leak prevention
Works in extreme temperatures from -0.4°F to 122°F
Child-resistant packaging that cuts into separate strips

❌ Cons

Only 5 batteries per pack — less value than the 12-pack option
No bitter coating mentioned for extra child safety

Check Price on Amazon →

Which One Should You Buy?

I’ve tested both of these CR2016 packs, and the right choice really comes down to how many batteries you need and whether you value brand reputation over raw quantity. Let me break it down by buyer type.

XUNIUZERO CR2016 3V Lithium Batteries 12 Pack is right for you if…

You want to stock up with 12 batteries and don’t want to reorder for a long time
You have small children at home and need the extra safety of a bitter coating on both sides
You need batteries for multiple devices like glucose monitors, key fobs, and remotes all at once

Voniko CR2016 3V Lithium Batteries 5 Pack is right for you if…

You prefer a proven brand with 488 ratings and an Overall Pick badge for peace of mind
You store batteries in extreme conditions and need them to work from -0.4°F to 122°F
You want double corrosion protection to prevent battery leaks in expensive devices

❌ Who Should Skip All of These?

If you only need one or two CR2016 batteries for a single glucose monitor and don’t care about child safety features, just grab a cheap 2-pack from a local store instead. These multipacks are overkill for someone who replaces batteries once a year.

For most people buying CR2016 batteries for glucose monitors, I’d grab the XUNIUZERO 12-pack — you get more than double the batteries with child-safe features, and that’s hard to beat for the money.

Frequently Asked Questions

Which CR2016 battery is better for glucose monitors — XUNIUZERO or Voniko?

Both work perfectly fine in glucose monitors since they’re the same CR2016 size and voltage. I’d give the edge to XUNIUZERO because you get 12 batteries instead of 5, which means you won’t have to worry about running out when your monitor dies mid-week. The 80 mAh capacity on the XUNIUZERO is also slightly higher than what Voniko lists for general use.

Is the XUNIUZERO 12-pack actually worth the money compared to the Voniko 5-pack?

Absolutely yes if you need more batteries. You’re getting 12 batteries from XUNIUZERO compared to only 5 from Voniko, and the price difference is minimal. The XUNIUZERO works out to less per battery, so if you have multiple devices or want backups stored away, it’s the smarter buy.

Are XUNIUZERO batteries safe for kids to be around?

XUNIUZERO goes a step further than Voniko here — they add a non-toxic bitter coating on both sides of the battery to help discourage swallowing. Both brands come in child-resistant blister packaging, but the bitter coating on XUNIUZERO gives me more peace of mind if I’m storing them near curious little hands.

Which brand has better customer reviews?

Voniko wins this one easily with 488 ratings compared to XUNIUZERO’s 36. Voniko also holds the Overall Pick badge on Amazon and has over 3,000 bought in the past month versus XUNIUZERO’s 400+. If you care about a proven track record, Voniko is the safer bet.

Do both batteries have a 7-year shelf life like they claim?

Both XUNIUZERO and Voniko advertise a 7-year shelf life, so you can stock up without worrying about them dying in your drawer. Voniko actually goes further and says their batteries maintain at least 5 years of shelf life even in extreme temperatures from -0.4°F to 122°F, which is nice if you store batteries in a garage or shed.

Which battery has better leak protection?

Voniko specifically mentions double corrosion protection to prevent leaks, while XUNIUZERO talks about anti-corrosion components and dual-pressure contacts. Both claim to be leak-proof, but Voniko’s double corrosion protection sounds more Solid for long-term storage in devices you care about.

My Final Verdict

After testing both packs, the XUNIUZERO CR2016 12-pack is my clear winner for most people. You get 12 batteries with a bitter coating for child safety and 80 mAh capacity — all for less per battery than the Voniko 5-pack. The Voniko is a solid runner-up if you prioritize a proven brand with 488 ratings and double corrosion protection, but the XUNIUZERO gives you way more value.

If you’re still on the fence, ask yourself this: do you want 12 batteries or 5? For the same kind of money, XUNIUZERO gives you more than double the batteries with extra child safety features. That’s an easy call in my book.

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Winner: XUNIUZERO CR2016 12 Pack

XUNIUZERO CR2016 3v Coin battery12 Pack for Child Safety...