# Invoke _EJ0 (eject) – dangerous, only if device is unmounted echo "\_SB_.PCI0.LPC_.EC__.IB68._EJ0" | acpi_call
Providing accurate data on battery health, discharge rates, and remaining life. acpi ibm0068
The hardware ID ACPI\IBM0068 corresponds to the Lenovo/IBM ThinkPad Power Management Driver # Invoke _EJ0 (eject) – dangerous, only if