/sys/class/power_supply/ADP1: POWER_SUPPLY_NAME=ADP1 POWER_SUPPLY_TYPE=Mains POWER_SUPPLY_ONLINE=1 /sys/class/power_supply/hid-90:9c:4a:05:87:59-battery: POWER_SUPPLY_NAME=hid-90:9c:4a:05:87:59-battery POWER_SUPPLY_TYPE=Battery POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_ONLINE=1 POWER_SUPPLY_CAPACITY=49 POWER_SUPPLY_MODEL_NAME=Magic Keyboard with Numeric Keypad POWER_SUPPLY_STATUS=Discharging POWER_SUPPLY_SCOPE=Device