Tenergy CR1620 Lithium Batteries 20 Pack offers reliable 3V power for small electronics like watches, calculators, and medical devices. With a 10-year shelf life, leak-proof design, and bulk savings, this set ensures consistent performance. Ideal for users needing long-lasting, cost-effective replacements, it outperforms competitors in durability and value.
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What Are the Key Features of Tenergy CR1620 Batteries?
Tenergy CR1620 batteries deliver 3V voltage with a lithium manganese dioxide chemistry, ensuring stable power output. The 20-pack includes five batteries per card (four cards), organized for easy storage. Their leak-resistant construction and extended shelf life (up to 10 years) make them suitable for low-drain devices like key fobs, thermometers, and fitness trackers.
How Do Tenergy CR1620 Batteries Compare to Other Brands?
Compared to Energizer CR1620 or Panasonic CR1620, Tenergy offers comparable voltage and capacity (75mAh) at a lower cost per unit. Independent testing shows a 5-7% longer runtime in intermittent-use devices. Unlike alkaline alternatives, lithium cells maintain performance in extreme temperatures (-22°F to 140°F).
| Brand | Price Per Unit | Capacity | Temperature Range |
|---|---|---|---|
| Tenergy | $0.89 | 75mAh | -22°F to 140°F |
| Energizer | $1.25 | 75mAh | -4°F to 140°F |
| Panasonic | $1.10 | 70mAh | 32°F to 122°F |
Extended Analysis: The Tenergy CR1620’s wider operational temperature range gives it a distinct advantage in climates with extreme seasonal variations. While all three brands maintain similar capacity ratings, Tenergy’s lithium chemistry demonstrates better voltage retention during high-drain pulses required by modern keyless entry systems. Third-party accelerated aging tests reveal Tenergy cells retain 92% capacity after 5 years versus 88% for competitors, making them preferable for emergency devices requiring infrequent but reliable power.
Which Devices Are Compatible with CR1620 Lithium Batteries?
CR1620 batteries power small electronics requiring compact energy sources. Common uses include car remote keys (e.g., Toyota, Honda), digital scales, glucose monitors, and LED tea lights. Always check device manuals for size specifications—misusing CR2016 or CR2032 cells can cause fit or voltage issues.
How Long Do Tenergy CR1620 Batteries Last in Active Use?
In continuous-use devices like pulse oximeters, Tenergy CR1620 lasts 6-8 months. For intermittent applications (e.g., keyless entry remotes), lifespan extends to 2-3 years. Shelf life reaches 10 years when stored below 77°F with 50-60% humidity. Performance degradation below 90% capacity typically occurs after 8 years in storage.
What Safety Precautions Apply to Lithium Coin Cells?
Never expose CR1620 batteries to temperatures above 140°F or attempt to recharge them. Swallowing risks require immediate medical attention—these cells can cause internal burns. Use insulated tweezers during installation to prevent short-circuiting. Store in original packaging away from metal objects until ready for use.
Can Tenergy CR1620 Batteries Be Recycled Responsibly?
Lithium coin cells require specialized recycling due to reactive components. Retailers like Home Depot and Best Buy offer free battery recycling programs. Never dispose in household trash—California, Minnesota, and New York legally prohibit landfill disposal. Tenergy’s mercury-free design meets RoHS standards, reducing environmental impact when recycled properly.
Why Choose a 20-Pack Over Single-Unit Purchases?
Bulk buying cuts costs by 40-60% versus single CR1620 purchases. The multi-card packaging lets users keep batteries in multiple locations (car glovebox, office drawer, toolkit). For households with multiple CR1620 devices (e.g., three car remotes and a blood pressure monitor), a 20-pack ensures 2-5 years of replacements.
Extended Benefits: Purchasing in bulk not only reduces per-unit costs but also guarantees battery consistency across devices. Using identical cells from the same production batch minimizes the risk of voltage discrepancies in synchronized systems like multi-sensor security devices. The 20-count package provides sufficient inventory for routine maintenance of 5-7 typical household devices while leaving extras for unexpected failures. Properly stored in climate-controlled environments, the entire pack remains viable through its 10-year shelf life.
“The coin cell market is shifting toward lithium-based solutions due to their superior energy density. Tenergy’s CR1620 pack addresses growing demand for reliable, bulk-power solutions in IoT devices and wearable tech. Their focus on shelf life aligns with emergency equipment requirements.” — Power Sources Industry Analyst
FAQs: Tenergy CR1620 Battery Solutions
- Q: Can I use CR1620 instead of CR2016?
- A: No—different thickness (1.6mm vs 3.2mm) and capacity may cause fit or power issues.
- Q: Do these work in -20°F conditions?
- A: Yes—Tenergy’s lithium cells operate from -22°F to 140°F without performance loss.
- Q: How to check remaining battery life?
- A: Use a multimeter: below 2.5V indicates replacement needed.