curl --request POST \
  --url https://api.iotools.cloud/v1/tool/battery-life-runtime-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "batteryCapacity": "5000",
  "capacityUnit": "mAh",
  "voltage": "3.7",
  "powerDraw": "2.5",
  "efficiency": "85"
}
'

{
  "tool": "battery-life-runtime-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "runtime": "6 hours 17 minutes",
    "runtimeDetails": [
      {
        "metric": "Estimated Runtime",
        "value": "6 hours 17 minutes"
      },
      {
        "metric": "Total Hours",
        "value": "6.29"
      },
      {
        "metric": "Total Minutes",
        "value": "377"
      },
      {
        "metric": "Usable Capacity",
        "value": "15.72 Wh"
      },
      {
        "metric": "Battery Capacity",
        "value": "18.50 Wh"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}