/sys/class/power_supply/AC0: POWER_SUPPLY_NAME=AC0 POWER_SUPPLY_TYPE=Mains POWER_SUPPLY_ONLINE=1 /sys/class/power_supply/BAT0: POWER_SUPPLY_NAME=BAT0 POWER_SUPPLY_TYPE=Battery POWER_SUPPLY_STATUS=Not charging POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_TECHNOLOGY=Li-ion POWER_SUPPLY_CYCLE_COUNT=0 POWER_SUPPLY_VOLTAGE_MIN_DESIGN=14800000 POWER_SUPPLY_VOLTAGE_NOW=16349000 POWER_SUPPLY_POWER_NOW=0 POWER_SUPPLY_ENERGY_FULL_DESIGN=43950000 POWER_SUPPLY_ENERGY_FULL=32360000 POWER_SUPPLY_ENERGY_NOW=32360000 POWER_SUPPLY_CAPACITY=100 POWER_SUPPLY_CAPACITY_LEVEL=Normal POWER_SUPPLY_MODEL_NAME=Battery 0 POWER_SUPPLY_MANUFACTURER=Lenovo POWER_SUPPLY_SERIAL_NUMBER=... 37DA8F41C55E5852A5192AB323452BEA POWER_SUPPLY_NAME=hidpp_battery_0 POWER_SUPPLY_TYPE=Battery POWER_SUPPLY_ONLINE=0 POWER_SUPPLY_STATUS=Unknown POWER_SUPPLY_SCOPE=Device POWER_SUPPLY_MODEL_NAME=Wireless Keyboard POWER_SUPPLY_MANUFACTURER=Logitech POWER_SUPPLY_SERIAL_NUMBER=... POWER_SUPPLY_CAPACITY_LEVEL=Unknown