src/power/battery-manager/meta/battery_manager.cmx

{
    "program": {
        "binary": "bin/app"
    },
    "sandbox": {
        "dev": [
            "class/power"
        ],
        "services": [
            "fuchsia.hardware.power.Source",
            "fuchsia.logger.LogSink"
        ]
    }
}