/sys/class/power_supply/hid-77:07:15:14:03:94-battery: POWER_SUPPLY_NAME=hid-77:07:15:14:03:94-battery POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_ONLINE=1 POWER_SUPPLY_CAPACITY=38 POWER_SUPPLY_MODEL_NAME=Bluetooth 3.0 Keyboard POWER_SUPPLY_STATUS=Discharging POWER_SUPPLY_SCOPE=Device