642702-001 HP Tod Clock Lithium (Cmos) Battery

The 642702-001 HP TOD Clock Lithium (CMOS) Battery is a direct‑fit replacement designed to maintain accurate system time and BIOS settings in compatible HP equipment. Engineered as a lithium‑based CMOS power source, this battery provides reliable, long‑lasting backup power for the real‑time clock circuit, preventing data loss during power interruptions. Identified by the OEM part number 642702-001, it matches the original specifications required by HP devices, ensuring seamless integration without the need for modifications. Installation is straightforward, allowing technicians or end users to quickly restore clock functionality and preserve system configuration.