{
  "battery_runtime_h": null,
  "power_active_w": null,
  "power_est_local_w": null,
  "power_sum_w": null,
  "power_w": 5.5,
  "source": "heuristic",
  "temp_c": null,
  "timestamp_utc": "2026-04-03T22:53:05Z",
  "voltage_v": null
}