{
  "node": {
    "id": "term:reference-performance-test",
    "type": "Term",
    "label": "Reference performance test",
    "properties": {
      "id": "reference-performance-test",
      "name": "Reference performance test",
      "abbr": "RPT",
      "aka": [
        "check-up"
      ],
      "section": "topic-testing",
      "definition": "A fixed set of measurements — capacity, resistance by pulse, sometimes impedance — repeated at intervals during an aging test to track state of health under identical conditions. Everything between RPTs is the aging itself.",
      "related": [
        "capacity-test",
        "hppc",
        "state-of-health",
        "accelerated-aging"
      ],
      "url": "https://lemonergy.com/learn/glossary/reference-performance-test/",
      "mentions": [
        "impedance"
      ]
    }
  },
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      "id": "edge:2630",
      "source": "term:reference-performance-test",
      "target": "term:capacity-test",
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      "target": "term:impedance",
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      "source": "term:reference-performance-test",
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      "properties": {
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        "scope": "direct technical reference"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-testing",
      "type": "Topic",
      "label": "Testing methods",
      "properties": {
        "id": "topic-testing",
        "name": "Testing methods",
        "lede": "The measurements and test procedures that characterise a cell or pack, from capacity and pulse tests to abuse and environmental tests.",
        "context": "Record specimen, state, instrument, temperature and timing.",
        "example": "Resistance immediately after a current step can differ from a ten-second value because slower polarization contributes.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/capacity-and-c-rate/",
        "lesson_label": "Open capacity measurements"
      }
    },
    {
      "id": "term:capacity-test",
      "type": "Term",
      "label": "Capacity test",
      "properties": {
        "id": "capacity-test",
        "name": "Capacity test",
        "section": "topic-testing",
        "definition": "A defined capacity test with specified charge, rest, discharge and cutoff conditions, usually a full CC-CV charge, a rest, and a C/3 or lower discharge to the lower cutoff at 25 °C. The delivered ampere-hours are the cell’s measured capacity.",
        "related": [
          "nominal-capacity",
          "cc-cv-charging",
          "cutoff-voltage",
          "reference-performance-test",
          "rate-test"
        ],
        "lesson": "fundamentals/capacity-and-c-rate/#nominal-capacity",
        "url": "https://lemonergy.com/learn/glossary/capacity-test/",
        "mentions": []
      }
    },
    {
      "id": "term:hppc",
      "type": "Term",
      "label": "Hybrid pulse power characterisation",
      "properties": {
        "id": "hppc",
        "name": "Hybrid pulse power characterisation",
        "abbr": "HPPC",
        "section": "topic-testing",
        "definition": "A test that applies a short discharge pulse and a short charge pulse at each state of charge, from which resistance and power capability are read as a function of SOC. It is the standard source of equivalent-circuit parameters.",
        "related": [
          "equivalent-circuit-model",
          "state-of-power",
          "internal-resistance",
          "dcir",
          "pulse-test"
        ],
        "url": "https://lemonergy.com/learn/glossary/hppc/",
        "mentions": [
          "state-of-charge"
        ]
      }
    },
    {
      "id": "term:state-of-health",
      "type": "Term",
      "label": "State of health",
      "properties": {
        "id": "state-of-health",
        "name": "State of health",
        "abbr": "SOH",
        "section": "topic-state",
        "definition": "A summary of how far a cell has aged, often expressed through remaining capacity or increased resistance compared with when it was new. By convention a cell has reached end of life at 80 % of its rated capacity.",
        "unit": "%",
        "related": [
          "capacity-fade",
          "impedance-rise",
          "end-of-life",
          "remaining-useful-life",
          "state-of-charge",
          "state-of-certified-energy"
        ],
        "lesson": "fundamentals/capacity-and-c-rate/#real-cells",
        "url": "https://lemonergy.com/learn/glossary/state-of-health/",
        "mentions": [
          "nominal-capacity"
        ]
      }
    },
    {
      "id": "term:accelerated-aging",
      "type": "Term",
      "label": "Accelerated aging test",
      "properties": {
        "id": "accelerated-aging",
        "name": "Accelerated aging test",
        "section": "topic-testing",
        "definition": "Aging cells faster than in service — at higher temperature, higher SOC or higher rate — and extrapolating to real conditions with a model such as Arrhenius. The extrapolation only holds if acceleration does not change which mechanism dominates.",
        "related": [
          "arrhenius",
          "calendar-aging",
          "cycle-aging",
          "aging-model",
          "reference-performance-test"
        ],
        "url": "https://lemonergy.com/learn/glossary/accelerated-aging/",
        "mentions": [
          "state-of-charge"
        ]
      }
    },
    {
      "id": "term:impedance",
      "type": "Term",
      "label": "Impedance",
      "properties": {
        "id": "impedance",
        "name": "Impedance",
        "abbr": "Z",
        "section": "topic-units",
        "definition": "The frequency-dependent generalisation of resistance, with a magnitude and a phase. A cell’s impedance separates ohmic, charge-transfer and diffusion contributions that a single DC resistance lumps together.",
        "unit": "Ω",
        "related": [
          "internal-resistance",
          "electrochemical-impedance-spectroscopy",
          "nyquist-plot"
        ],
        "url": "https://lemonergy.com/learn/glossary/impedance/",
        "mentions": [
          "diffusion"
        ]
      }
    },
    {
      "id": "reference:inl-ev-tests",
      "type": "Reference",
      "label": "Battery Test Manual For Electric Vehicles, Revision 3",
      "properties": {
        "title": "Battery Test Manual For Electric Vehicles, Revision 3",
        "publisher": "Idaho National Laboratory",
        "url": "https://inldigitallibrary.inl.gov/sites/sti/sti/6492291.pdf",
        "type": "Test manual",
        "scope": "Performance characterization, pulse resistance/power, life testing and reference performance tests; historical 2015 edition.",
        "year": 2015,
        "authors": [
          "Jon P. Christopherson"
        ],
        "accessed": "2026-10-27"
      }
    }
  ]
}