Renata CR2450N Lithium Coin Cell Battery

The Renata CR2450N is a high-quality lithium manganese dioxide (Li-MnO₂) coin cell battery designed for long-term, low-drain applications. With a nominal voltage of 3V and a typical capacity of 550 mAh, this battery is widely used for memory backup in PLCs, real-time clocks (RTC), medical devices, and wireless sensors. Its stable discharge characteristics and wide operating temperature range make it a reliable power source for industrial and consumer electronics.

Performance Characteristics

The CR2450N offers a flat discharge curve, maintaining a stable voltage over most of its service life, which is critical for memory retention and precision timing circuits. The battery has a very low self-discharge rate (less than 1% per year at 20°C), providing a shelf life of up to 10 years. Its lithium chemistry provides high energy density and excellent low-temperature performance down to -20°C, making it suitable for outdoor or unheated industrial environments.

Safety and Compliance

Renata CR2450N batteries are manufactured with safety features including a pressure relief vent and separator shut-down mechanism to prevent explosion or leakage under abuse conditions. They are certified to UL 1642 (safety standard for lithium batteries) and comply with UN 38.3 for transportation. The batteries are RoHS compliant and free from mercury, cadmium, and lead.

Application Domains

Typical applications include PLC and industrial computer memory backup, real-time clocks (RTC) on PC motherboards and embedded systems, wireless sensors and IoT devices, medical equipment (glucose meters, thermometers), and automotive key fobs and TPMS sensors. The CR2450N is also used in calculators, digital calipers, and other portable instruments.