SONY CR2032 LITHUM BATTERIES

🔋 SONY CR2032 Lithium Coin Cell Battery — Description

The SONY CR2032 is a 3 V primary (non-rechargeable) lithium coin/button battery designed to provide reliable power for low-drain portable electronics. It’s widely used because of its compact size, stable voltage output, and long shelf life.

🔋 Key Specifications

• Battery Type: Lithium Manganese Dioxide (Li-MnO₂) primary coin cell (non-rechargeable)

• Nominal Voltage: 3 V

• Capacity: ~220 mAh (typical)

• Dimensions: 20.0 mm diameter x 3.2 mm thickness

• Weight: ~3.2 g

• Operating Temperature: typical range roughly –20 °C to +60 °C (varies slightly by manufacturer)

• Shelf Life: Long standby life (often ~5–10 years in storage)

📌 Features

• Stable output voltage: Provides a consistent 3 V supply ideal for memory backup or timekeeping circuits.

• Small & lightweight: Coin-cell form factor fits compact devices.

• Low self-discharge: Holds charge well in storage, so it lasts years unused.

• Reliable performance: Well-suited for low-drain electronics.

📱 Common Uses

• Watches and clocks

• Remote controls and key fobs

• Calculators and small electronic toys

• Motherboard CMOS/RTC (memory backup)

• Fitness devices, glucometers, and small medical devices

• LED lights and small sensors

📌 Important Notes

• Non-rechargeable: Never attempt to recharge a CR2032 — doing so can cause leakage, overheating, or rupture.

• When replacing, always match the exact size (20×3.2 mm) and voltage to ensure compatibility.

• Dispose of used batteries responsibly (recycling where available).