The CR2032 is a 3-volt lithium coin cell battery widely used in small electronic devices like watches, calculators, car key fobs, and computer motherboards. Measuring 20mm in diameter and 3.2mm thick, it delivers long-lasting power with a typical capacity of around 220mAh. Known for its stable voltage and long shelf life, the CR2032 is a reliable choice for low-drain, memory-backup, or RTC (real-time clock) applications.
