Lithium Battery CR2032: Technical Specifications & Overview
The CR2032 is a high-performance, coin-shaped lithium battery widely used for providing long-lasting power to small electronic devices. It is known for its reliability, stable voltage, and impressive shelf life.
1. Technical Specifications
| Parameter | Details |
| Model | CR2032 |
| Chemistry | Lithium Manganese Dioxide ($LiMnO_{2}$) |
| Nominal Voltage | 3.0V |
| Typical Capacity | 210 mAh to 240 mAh (varies by brand) |
| Diameter | 20 mm |
| Height | 3.2 mm |
| Weight | Approx. 3.0 grams |
| Operating Temp. | -20°C to +70°C |
| Shelf Life | 5 to 10 years (low self-discharge) |
2. Key Features
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High Energy Density: Provides significant power in a compact, lightweight design.
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Stable Discharge: Maintains a consistent 3V output throughout most of its life cycle, ensuring devices perform accurately.
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Long Shelf Life: Due to its low self-discharge rate (less than 1% per year), it stays fresh for up to a decade when stored properly.
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Leak Protection: Encased in a leak-proof stainless steel housing for maximum safety of your electronics.
3. Common Applications
CR2032 batteries are the “gold standard” for small gadgets, including:
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Computing: CMOS/BIOS battery on computer motherboards to maintain time and settings.
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Automotive: Keyless entry remotes (car key fobs).
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Medical Devices: Digital thermometers, glucose monitors, and heart rate monitors.
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Personal Electronics: Digital watches, pocket calculators, and electronic toys.
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Smart Home: Doorbell sensors, security tokens, and fitness trackers.
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