Button cell batteries are compact lithium coin-type cells widely used for their reliable performance and long service life. CR batteries (Lithium Manganese Dioxide) provide high energy density and a stable 3V output, making them ideal for high-drain applications such as car keys, electronic scales, and medical devices. BR batteries (Lithium Poly-Carbonmonofluoride) are designed for ultra-stable voltage and exceptional performance in high-temperature environments, making them suitable for industrial-grade memory backup, meters, and control systems. With low self-discharge rates and shelf lives of up to 10 years, BR and CR button batteries offer consistent, long-lasting power for compact, mission-critical electronic devices.