From Makers Electronics's description
Energizer CR2032 Coin Cell Lithium Battery 3V The Energizer CR2032 Coin Cell Lithium Battery is a 3V lithium battery designed for a wide range of electronic devices including watches, calculators, key fobs, glucose monitors, and toys. It has a nominal capacity of 235mAh and operates reliably in temperatures from -30°C to 60°C. This battery features a lithium manganese dioxide chemical system, offers a long shelf life of up to 8 years in storage, and comes in child-resistant packaging for safety. Its compact size of 20mm diameter and 3.2mm thickness makes it ideal for small, high-drain devices requiring consistent power. Features Lithium / manganese dioxide chemical system for reliable power. Nominal voltage of 3.0 volts with typical capacity of 235 mAh. Lightweight at approximately 3.0 grams for easy integration. Low self-discharge rate of about 1% per year for long shelf life. Operates efficiently in a wide temperature range from -30°C to 60°C. Compact coin cell size with 20mm diameter and 3.2mm thickness. Child-resistant packaging for enhanced safety. Suitable for a variety of devices including watches, key fobs, calculators, and medical devices. Consistent performance for high-drain electronic devices. Specifications Parameters Detail Battery Type CR2032 Lithium Coin Cell Chemical System Lithium / Manganese Dioxide (Li/MnO2) Nominal Voltage 3.0 Volts Capacity 235 mAh (to 2.0 volts at 15K ohms, 21°C) Operating Temperature Range -30°C to 60°C Dimensions (Diameter x Thickness) 20 mm x 3.2 mm Weight 3.0 grams Energy Density 198 mWh/g, 616-653 mWh/cc Self-discharge Rate 1% per year Max Reverse Charge Current 1 microampere Caution Do not recharge! Keep away from children! Observe the proper polarity (+/-), do not short-cut. Do not throw the batteries into open fire, do not disassemble, do not solder. Do not combine the batteries of various types, do not mix the new and old ones. Applications Car key fobs and remote controls. Wristwatches and fitness trackers. Glucose meters and other medical devices. Calculators and electronic organizers. Computer motherboards (BIOS backup power). Electronic toys and games. Cycling computers and sports equipment. Garage door openers and security devices. LED lights and small portable electronics. Package Contents 1 x Energizer CR2032 Coin Cell Lithium Battery 3V Datasheet CR2032
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