List current devices:

upower --enumerate

Example output -- save the path to your battery (in my case `/org/freedesktop/UPower/devices/battery_BAT0`):

/org/freedesktop/UPower/devices/battery_BAT0
/org/freedesktop/UPower/devices/line_power_AC
/org/freedesktop/UPower/devices/line_power_ucsi_source_psy_USBC000o001
/org/freedesktop/UPower/devices/mouse_dev_D7_D5_EA_EE_B0_D8
/org/freedesktop/UPower/devices/DisplayDevice

Get full details:

upower -i /org/freedesktop/UPower/devices/battery_BAT0