HP 481089-001 Real-time clock (RTC) battery - CR2032 button style, 3VDC, 220mAh, lithium, 20mm diameter, 3.2mm height
This is a 3 volt coin cell battery that has no wires and no connector attached to it. It fits into a coin cell retainer clip that is on the motherboard of HP Models that use HP P/N 481089-001.