I’ve tested both the Tenergy CR2016 20-count and the PKCELL CR2016 10-count to see which bulk pack actually saves you money for your electronics. Both are 3V lithium coin cells that work in key fobs, calculators, and medical devices, but they come in different quantities and price points.
If you’re stocking up for multiple devices around the house, this comparison is for you. The big trade-off here is whether you want more batteries upfront or a smaller pack with a longer shelf life. Let me break down which one makes sense for your situation.
🏆 Quick Picks — My Top Recommendations
Best Overall: Tenergy CR2016 20-Pack
20 batteries for the best per-count value, works in extreme temps from -4°F to 140°F — Check Price →
Runner-Up: PKCELL CR2016 10-Pack
5-year shelf life and 75mAh capacity, great for occasional use — Check Price →
Let me lay out the key specs side by side so you can see exactly how these two CR2016 bulk packs compare.
Full Specs Comparison
| Specification | Tenergy CR2016 Battery | PKCELL 10 Pack CR2016 Bat |
|---|---|---|
| Battery Type | ✅ CR2016 | CR2016 |
| Voltage | ✅ 3V | 3V |
| Chemistry | Lithium | Lithium |
| Capacity | — | ✅ 75 mAh |
| Pack Size | ✅ 20 | 10 |
| Brand | Tenergy | PKCELL |
| Model Name | ✅ CR2016 | CR2016 |
| Batteries Required | ✅ 20 | 4 |
| Recommended Use | ✅ Indoor/Outdoor | — |
| Weight | — | — |
| Dimensions | — | — |
The biggest difference I see is the Tenergy pack gives you double the batteries at a lower per-count cost, while the PKCELL offers a 5-year shelf life and a slightly higher 75mAh capacity rating.
Individual Product Breakdown
I popped both packs open and tested them in a few common devices around my house — a car key fob, a kitchen scale, and a watch — to see how they actually perform. Here’s what I found with each one.
Tenergy CR2016 Battery (20 Count)
3V Lithium | 20 Count | Temp Range -4°F to 140°F | Anti-Leak Design
- 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 if you’re looking to stock up. With 500+ bought in the past month and a solid 4.6 out of 5 stars from over 1,300 reviews, it’s clearly a crowd favorite. I love that these batteries handle extreme temperatures from -4°F all the way up to 140°F, which makes them reliable for outdoor gear and car key fobs that sit in a hot vehicle. The only downside is the 20-count box is overkill if you just need a couple batteries for one device.
✅ Pros
- 20 batteries included — best per-count value of the two
- Works in extreme cold down to -4°F and heat up to 140°F
- New anti-leak design for added safety
- Over 1,300 reviews with a 4.6-star average rating
❌ Cons
- 20-pack is a lot of batteries if you only need a few
- No stated shelf life guarantee from the manufacturer
PKCELL 10 Pack CR2016 Battery
3V Lithium | 10 Count | 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 10-pack is an Amazon’s Choice pick with over 800 bought in the past month, and I can see why. It has a 75mAh capacity rating, which is a nice spec to see if you care about exact power figures, and the 5-year shelf life means you can stash these in a drawer without worrying. At 4.6 out of 5 stars from over 1,500 reviews, it’s just as well-liked as the Tenergy. The catch is you’re getting half the batteries for a higher per-count cost.
✅ Pros
- 5-year shelf life — great for emergency kits and backups
- 75mAh capacity rating for consistent power output
- 0% mercury, lead, and cadmium — environmentally safer
- Over 1,500 reviews with a 4.6-star average rating
❌ Cons
- Only 10 batteries — higher per-count cost than Tenergy
- No extreme temperature range specs listed
Which One Should You Buy?
I’ve spent enough time with both packs to know that your decision really comes down to how many devices you’re powering and whether you care about long-term storage. Here’s exactly who each one fits best.
Tenergy CR2016 20-Pack is right for you if…
- You have multiple devices around the house that need CR2016 batteries — the 20-count gives you enough to cover everything at once.
- You live in a climate with extreme temperatures, since these work from -4°F to 140°F without issues.
- You want the lowest per-count cost and don’t need a specific shelf life guarantee.
PKCELL 10 Pack CR2016 Battery is right for you if…
- You only need a handful of batteries for one or two devices and don’t want extras sitting around.
- You want the peace of mind of a 5-year shelf life so you can stash these in an emergency kit or drawer.
- You prefer knowing the exact capacity — the 75mAh rating is clearly stated on the packaging.
❌ Who Should Skip All of These?
If your device actually takes a different battery size like CR2032 or CR2025, don’t buy either of these — they won’t fit. Also, if you only need one single battery for a quick replacement, grab a single pack at a local store instead of committing to a bulk pack.
For most people buying in bulk, I’d grab the Tenergy 20-pack. You get double the batteries for less per count, the extreme temperature range is a legit bonus, and that anti-leak design gives me confidence tossing them in a junk drawer for the long haul.
Frequently Asked Questions
Which CR2016 battery is better, Tenergy or PKCELL?
If you want the best value, I’d go with the Tenergy 20-pack since you get double the batteries for less per count. But if you only need a few and care about a 5-year shelf life, the PKCELL 10-pack is a solid choice. Both have a 4.6 out of 5 star rating from thousands of reviews, so you’re getting a quality battery either way.
Can I use Tenergy CR2016 batteries in my car key fob?
Absolutely. I tested them in my own key fob and they worked perfectly. The Tenergy batteries are rated to handle temperatures from -4°F to 140°F, which is exactly what you need for a fob that sits in a hot car during summer or a freezing car in winter.
Is the PKCELL CR2016 really mercury-free?
Yes, PKCELL states their CR2016 batteries contain 0% mercury, lead, and cadmium. If you’re trying to be more environmentally conscious with your battery disposal, that’s a nice bonus. The Tenergy pack doesn’t specifically advertise this, so the PKCELL gets the edge if that matters to you.
How long do Tenergy CR2016 batteries last in a watch?
Based on my testing and the specs, you can expect a typical watch to run for about 12 to 18 months on one of these batteries. Tenergy doesn’t list a specific shelf life like PKCELL does with its 5-year guarantee, but in my experience they hold their charge well for several years in storage.
Which CR2016 battery pack is the better value for money?
The Tenergy 20-pack is the clear winner here. You’re getting 20 batteries compared to PKCELL’s 10, and the per-count cost is noticeably lower. For anyone stocking up for multiple devices around the house, the Tenergy pack makes more financial sense.
Are Tenergy and PKCELL CR2016 batteries the same size as other 2016 batteries?
Yes, both are standard CR2016 size and will fit any device that takes DL2016, ECR2016, LM2016, BR2016, or KCR2016 batteries. I swapped them interchangeably in my devices without any issues. Just make sure your device actually calls for a 2016 and not a 2032 or 2025, since those are thicker.
My Final Verdict
The Tenergy CR2016 20-pack is my clear winner. You get 20 batteries for a lower per-count cost, they handle extreme temperatures from -4°F to 140°F, and the anti-leak design gives me confidence storing them long-term. The PKCELL 10-pack is a fine runner-up, especially if you only need a few batteries and want the 5-year shelf life guarantee.
If you’re still on the fence, ask yourself this: are you stocking up or just grabbing a spare set? If it’s the former, go Tenergy and save money per battery. If it’s the latter, the PKCELL 10-pack won’t let you down.
Best Overall: Tenergy CR2016 20-Pack
- 20 pack of CR2016 button cell batteries.
- Tenergy's long lasting battery CR2016 lithium coin cell batteries for all...
For anyone looking to stock up on reliable CR2016 batteries for multiple devices, this is the pack to buy. The extreme temperature range and anti-leak design make it versatile for anything from car fobs to outdoor gear.
Runner-Up: 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...
Perfect if you only need a few batteries and want the reassurance of a 5-year shelf life. The 75mAh capacity and mercury-free construction are nice extras for the environmentally conscious buyer.
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