In FreeBSD, you can use the acpiconf command to find out the battery life status of a laptop.
To get the battery status, run the following command in the terminal:
acpiconf -i 0
This will display information about the first (0th) battery in the system, including its current charge level and whether it is charging or discharging.
For more information on the acpiconf command and its options, you can run man acpiconf in the terminal.