{
  "id": "mba-m1-usbc-charge",
  "version": "1.0.0",
  "title": "USB-C power and battery checks",
  "deviceFamily": "laptop",
  "modelId": "mba-m1",
  "modelApplicability": {
    "id": "mba-m1",
    "name": "MacBook Air M1",
    "family": "laptop",
    "revision": "MacBook Air (M1, 2020), Apple M1 chip",
    "os": "macOS Big Sur or later; Ventura and later call the preferences app System Settings. Diagnostic screens vary by macOS.",
    "region": "US-first; local repair provider requirements vary.",
    "help": "Choose Apple menu → About This Mac. Confirm MacBook Air (M1, 2020) and Chip: Apple M1. An Intel processor or another chip does not match.",
    "exclusions": [
      "MacBook Air Intel 2020",
      "MacBook Air M2",
      "MacBook Pro M1"
    ],
    "sourceIds": [
      "mac-id",
      "mac-spec",
      "mac-diagnostics"
    ]
  },
  "exclusions": [
    "MacBook Air Intel 2020",
    "MacBook Air M2",
    "MacBook Pro M1"
  ],
  "intent": "Separate charging hardware, load and battery settings on the M1 Air.",
  "category": "power",
  "prerequisites": [
    "Apple M1 Air is confirmed",
    "Work can be saved before restart"
  ],
  "tools": [
    "Undamaged compatible USB-C charging cable",
    "Compatible power adapter and working outlet"
  ],
  "materials": [
    "A private place to keep your findings",
    "A current backup if the device is accessible"
  ],
  "checks": [
    {
      "id": "safety",
      "goal": "Separate unsafe hardware from routine preparation.",
      "question": "Any swelling, casing separation, liquid damage, smoke, burning smell, or damaged battery/adapter?",
      "sourceIds": [
        "mac-charge"
      ],
      "options": [
        {
          "id": "safe",
          "label": "No visible danger",
          "next": "check-1"
        },
        {
          "id": "danger",
          "label": "Yes, or suspected damage",
          "next": "stop"
        },
        {
          "id": "unknown",
          "label": "I cannot confirm",
          "next": "uncertain"
        }
      ]
    },
    {
      "id": "check-1",
      "goal": "Confirm external power setup.",
      "question": "Is the Mac connected directly with undamaged compatible charging equipment?",
      "sourceIds": [
        "mac-charge",
        "mac-spec"
      ],
      "options": [
        {
          "id": "yes",
          "label": "Yes",
          "next": "check-2"
        },
        {
          "id": "no",
          "label": "No",
          "next": "attention"
        },
        {
          "id": "unknown",
          "label": "Not checked / unsure",
          "next": "uncertain"
        }
      ]
    },
    {
      "id": "check-2",
      "goal": "Compare load and battery settings.",
      "question": "Does the battery menu recognize power with the expected charging behavior?",
      "sourceIds": [
        "mac-charge",
        "mac-spec"
      ],
      "options": [
        {
          "id": "yes",
          "label": "Power behavior understood",
          "next": "ready"
        },
        {
          "id": "no",
          "label": "Still unrecognized or unexplained",
          "next": "service"
        },
        {
          "id": "unknown",
          "label": "Not checked / unsure",
          "next": "uncertain"
        }
      ]
    }
  ],
  "branches": [
    {
      "from": "safety",
      "answer": "safe",
      "to": "check-1"
    },
    {
      "from": "safety",
      "answer": "danger",
      "to": "stop"
    },
    {
      "from": "safety",
      "answer": "unknown",
      "to": "uncertain"
    },
    {
      "from": "check-1",
      "answer": "yes",
      "to": "check-2"
    },
    {
      "from": "check-1",
      "answer": "no",
      "to": "attention"
    },
    {
      "from": "check-1",
      "answer": "unknown",
      "to": "uncertain"
    },
    {
      "from": "check-2",
      "answer": "yes",
      "to": "ready"
    },
    {
      "from": "check-2",
      "answer": "no",
      "to": "service"
    },
    {
      "from": "check-2",
      "answer": "unknown",
      "to": "uncertain"
    }
  ],
  "steps": [
    {
      "id": "step-1",
      "text": "Inspect cable, port and power adapter for visible damage. If anything is damaged, stop using it. Try an undamaged charging-capable cable, not a data-only cable.",
      "sourceIds": [
        "mac-charge",
        "mac-spec"
      ],
      "locator": "Check hardware / Check software / M1 specification Battery and Power"
    },
    {
      "id": "step-2",
      "text": "Connect directly to the Mac and a working outlet. The original M1 Air specification lists a 30 W USB-C adapter; use a compatible recommended supply rather than assuming any USB source can charge under load.",
      "sourceIds": [
        "mac-charge",
        "mac-spec"
      ],
      "locator": "Check hardware / Check software / M1 specification Battery and Power"
    },
    {
      "id": "step-3",
      "text": "Review the battery menu and Battery settings. A high workload or an intentional battery health pause can cause Not Charging without identifying a defective battery.",
      "sourceIds": [
        "mac-charge",
        "mac-spec"
      ],
      "locator": "Check hardware / Check software / M1 specification Battery and Power"
    },
    {
      "id": "step-4",
      "text": "Save work, restart this Apple silicon Mac, and retest with lighter workload in a ventilated location. Do not perform Intel SMC key combinations on the M1.",
      "sourceIds": [
        "mac-charge",
        "mac-spec"
      ],
      "locator": "Check hardware / Check software / M1 specification Battery and Power"
    }
  ],
  "outcomeChecks": [
    "Save the observed charging behavior and workload. If it recurs, retain the comparison for Apple support.",
    "Persistent unexplained charging trouble needs Apple support. Do not open the adapter or interpret this as permission to replace a battery."
  ],
  "stopConditions": [
    "Stop using and charging a swollen or damaged battery. Do not open, compress, puncture, or attempt battery removal. Contact the manufacturer or a qualified service provider.",
    "Disconnect a damaged accessory if it is safe to do so. Do not open a mains power adapter.",
    "Save accessible data before restarting. Do not reset, erase, flash firmware, bypass a lock, or open the enclosure in this task."
  ],
  "terminals": {
    "ready": {
      "type": "preparation_saved",
      "title": "Checks recorded",
      "text": "Save the observed charging behavior and workload. If it recurs, retain the comparison for Apple support."
    },
    "service": {
      "type": "service_needed",
      "title": "Arrange service or support",
      "text": "Persistent unexplained charging trouble needs Apple support. Do not open the adapter or interpret this as permission to replace a battery."
    },
    "attention": {
      "type": "maintenance_possible",
      "title": "Complete the preparation first",
      "text": "Review the relevant step above. Gather the missing item or perform the reversible check, then go back and update your answer. A missing prerequisite does not identify a failed part."
    },
    "uncertain": {
      "type": "preparation_saved",
      "title": "Save an incomplete preparation record",
      "text": "Your observation is still unknown. Save the unanswered checks and use the linked support instructions or a qualified provider to confirm the next step."
    },
    "stop": {
      "type": "service_needed",
      "title": "Stop and get professional help",
      "text": "Do not charge, use, open or press on a device with suspected battery damage. Do not handle hot or smoking equipment. Seek the manufacturer’s safety and service guidance; use local emergency services if there is an immediate fire risk."
    }
  },
  "sources": [
    {
      "id": "mac-charge",
      "title": "Mac battery will not charge",
      "url": "https://support.apple.com/en-gb/guide/mac-help/-mh29198/mac",
      "locator": "Check software / Check hardware",
      "purpose": "Cable, power, temperature and Apple silicon restart",
      "checkedAt": "2026-10-04",
      "reuse": "Reference only. Original paraphrase; no copied images or manual pages.",
      "licenseStatus": "Public support document; no redistribution license assumed."
    },
    {
      "id": "mac-spec",
      "title": "MacBook Air M1 2020 specifications",
      "url": "https://support.apple.com/en-us/111883",
      "locator": "Charging and Expansion / Display Support",
      "purpose": "USB-C charging, one native external display",
      "checkedAt": "2026-10-04",
      "reuse": "Reference only. Original paraphrase; no copied images or manual pages.",
      "licenseStatus": "Public support document; no redistribution license assumed."
    },
    {
      "id": "mac-id",
      "title": "Identify MacBook Air model",
      "url": "https://support.apple.com/en-ie/102869",
      "locator": "Find model / MacBook Air M1 2020",
      "purpose": "Model and chip confirmation",
      "checkedAt": "2026-10-04",
      "reuse": "Reference only. Original paraphrase; no copied images or manual pages.",
      "licenseStatus": "Public support document; no redistribution license assumed."
    },
    {
      "id": "mac-diagnostics",
      "title": "Use Apple Diagnostics",
      "url": "https://support.apple.com/en-gb/102550",
      "locator": "Prepare / Apple silicon / Results",
      "purpose": "Startup options, Command-D and reference codes",
      "checkedAt": "2026-10-04",
      "reuse": "Reference only. Original paraphrase; no copied images or manual pages.",
      "licenseStatus": "Public support document; no redistribution license assumed."
    }
  ],
  "assets": [
    {
      "path": "/assets/decision-flow.svg",
      "kind": "Original schematic",
      "alt": "Model match, danger check, observation, then preparation or service"
    }
  ],
  "relatedIds": [
    "mba-m1-diagnostics",
    "mba-m1-safe-mode",
    "mba-m1-wifi-access"
  ],
  "estimatedDuration": {
    "minutes": 15,
    "label": "Planning estimate; excludes charging, cooling, backups and service. Not a measured repair time."
  }
}