The Panasonic CR2016 is a 3V lithium coin battery used in small electronics like watches, calculators, and medical devices. It offers a 90mAh capacity, a 10-year shelf life, and stable voltage output. Its compact size (20mm diameter, 1.6mm height) and heat resistance make it ideal for low-drain applications. Always check device compatibility before use.
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How Does the CR2016 Differ From Other Button Cell Batteries?
The CR2016 is thinner (1.6mm) than the CR2032 (3.2mm) but shares the same diameter. It delivers lower capacity (90mAh vs. 225mAh in CR2032) but fits slimmer devices. Unlike alkaline alternatives, lithium construction ensures leak resistance and stable performance in temperatures from -30°C to 60°C. Voltage remains consistent at 3V throughout its lifespan.
This battery’s chemistry also differs from silver oxide counterparts. While silver oxide cells (SR series) offer slightly higher energy density, they’re more expensive and less temperature-stable. The CR2016’s lithium manganese dioxide composition provides better cost efficiency for devices requiring moderate power over extended periods. Engineers often select it for applications where battery replacement frequency matters – its 0.9-gram weight and flat discharge curve make it preferable for IoT sensors and backup power modules.
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Where Should You Use Panasonic CR2016 Batteries?
Common applications include car key fobs, fitness trackers, glucometers, and CMOS batteries. Avoid high-drain devices like digital cameras. Optimal for devices drawing less than 0.1mA continuously. Panasonic’s gold-plated contacts minimize internal resistance, making them suitable for precision instruments requiring uninterrupted power flow.
| Device Type | Average Current Draw | Expected Lifespan |
|---|---|---|
| Car Key Fob | 0.05mA | 3-5 years |
| Digital Thermometer | 0.08mA | 2-3 years |
| LED Calculator | 0.12mA | 1-2 years |
Why Choose Panasonic Over Generic CR2016 Batteries?
Panasonic uses aerospace-grade lithium manganese dioxide (Li-MnO2) chemistry with 0.001% defect rates. Third-party tests show 15% longer runtime versus generics. Each batch undergoes 23 quality checks, including humidity resistance and shock tests. Counterfeit versions often miss the laser-etched “Panasonic” logo and UL certification mark.
The manufacturing process employs hermetic sealing that reduces oxidation by 40% compared to standard batteries. This is critical in humid environments where generic cells might fail within months. Panasonic’s proprietary electrolyte formulation maintains ionic conductivity even at -40°C, a feature verified through 500-cycle testing. For automotive applications, this translates to reliable performance in extreme weather conditions where cheaper alternatives frequently experience voltage drops during cold starts.
Can CR2016 Batteries Be Recharged or Reactivated?
No—attempting to recharge non-rechargeable lithium cells risks thermal runaway. The CR2016 is single-use. For reusable alternatives, consider ML2016 lithium-manganese rechargeables, but verify device compatibility. Panasonic’s design prevents reverse charging through built-in pressure relief vents and separator layers.
“Panasonic’s CR2016 sets the benchmark for reliability in micro batteries. Their patented stacking technology allows 30% denser energy storage than competitors. In medical devices, this consistency can be life-saving—a 0.1V drop could skew glucometer readings by 15%. Always prioritize OEM cells in critical applications.”
— Dr. Elena Torres, Power Systems Engineer
FAQs
- Q: Can I use CR2032 instead of CR2016?
- A: Only if the device compartment allows 3.2mm height. Forcing thicker batteries damages contacts. Use spacers only if recommended by the manufacturer.
- Q: Do CR2016 batteries expire if unused?
- A: Yes—Panasonic guarantees 10-year shelf life if stored below 25°C at 65% humidity. After 10 years, capacity may drop to 75%.
- Q: Are all CR2016 batteries the same?
- A: No—Panasonic uses purer lithium cathodes (99.9%) versus 97% in generics. This reduces internal resistance by 22%, per IEC 60086-3 standards.