The Lenovo (04X0443) CMOS Battery is an essential component specifically designed for various Lenovo laptops and desktops. As a critical part of the motherboard, this battery maintains the system clock, BIOS settings, and data integrity when the computer is powered off. Built to uphold Lenovo's commitment to performance and reliability, this CMOS battery ensures your machine remains efficient and operational. Ideal for users who rely on consistent system performance, it provides a straightforward solution for preserving system configurations and keeps you connected without interruptions. With a straightforward installation process, this product is perfect for both professional technicians and everyday users wishing to maintain or upgrade their systems. Ensure your Lenovo device runs smoothly by replacing old or depleted batteries with the high-quality 04X0443 CMOS Battery.