CR2032 lithium coin cell battery (3 V) for BIOS/CMOS backup on motherboards, provides long‑lasting standby power to retain system settings and time, with wide compatibility and a compact form factor. Chemistry: Lithium/Manganese dioxide Dimensions: ~20 mm diameter × 3.2 mm thickness Long shelf and service life (often 5–10 years) Maintains BIOS/CMOS settings, system time, and hardware configuration Widely compatible with desktop and laptop motherboards
