/sys/class/power_supply/AC0: POWER_SUPPLY_NAME=AC0 POWER_SUPPLY_TYPE=Mains POWER_SUPPLY_ONLINE=1 /sys/class/power_supply/hid-19:06:10:17:75:44-battery: POWER_SUPPLY_NAME=hid-19:06:10:17:75:44-battery POWER_SUPPLY_TYPE=Battery POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_ONLINE=1 POWER_SUPPLY_CAPACITY=5 POWER_SUPPLY_MODEL_NAME=Nulaxy Keyboard POWER_SUPPLY_STATUS=Discharging POWER_SUPPLY_SCOPE=Device /sys/class/power_supply/hidpp_battery_0: POWER_SUPPLY_NAME=hidpp_battery_0 POWER_SUPPLY_TYPE=Battery POWER_SUPPLY_ONLINE=1 POWER_SUPPLY_STATUS=Discharging POWER_SUPPLY_SCOPE=Device POWER_SUPPLY_MODEL_NAME=ERGO M575 Trackball POWER_SUPPLY_MANUFACTURER=Logitech POWER_SUPPLY_SERIAL_NUMBER=... POWER_SUPPLY_CAPACITY=40