{
  "node": {
    "id": "term:testing",
    "type": "Term",
    "label": "Cell testing",
    "properties": {
      "id": "testing",
      "name": "Cell testing",
      "section": "topic-testing",
      "definition": "Measuring a cell’s capacity, resistance, efficiency, rate capability, life and safety under defined conditions. Because every result depends on the conditions, a result without its temperature, current and voltage limits is not a result.",
      "related": [
        "capacity-test",
        "cycler",
        "reference-performance-test",
        "abuse-testing",
        "datasheet"
      ],
      "url": "https://lemonergy.com/learn/glossary/testing/",
      "mentions": [
        "rate-capability"
      ]
    }
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      "id": "edge:2598",
      "source": "term:testing",
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      "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"
      }
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      "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": [
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          "rate-test"
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        "url": "https://lemonergy.com/learn/glossary/capacity-test/",
        "mentions": []
      }
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    {
      "id": "term:cycler",
      "type": "Term",
      "label": "Battery cycler",
      "properties": {
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        "name": "Battery cycler",
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          "cycling channel"
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        "section": "topic-testing",
        "definition": "The instrument that charges and discharges cells to a programmed schedule while logging voltage, current and temperature, with one independent channel per cell. Laboratory cyclers resolve microvolts; production formation cyclers handle thousands of cells at once.",
        "related": [
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          "capacity-test",
          "potentiostat",
          "formation",
          "cycler-file-formats"
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        "mentions": []
      }
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      "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"
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        "url": "https://lemonergy.com/learn/glossary/reference-performance-test/",
        "mentions": [
          "impedance"
        ]
      }
    },
    {
      "id": "term:abuse-testing",
      "type": "Term",
      "label": "Abuse testing",
      "properties": {
        "id": "abuse-testing",
        "name": "Abuse testing",
        "section": "topic-safety",
        "definition": "Deliberately driving cells and packs beyond their limits — overcharge, crush, nail penetration, external short, heating, drop — to see how they fail. Standards define each test and rank the outcome on a hazard scale from no effect to explosion.",
        "related": [
          "nail-penetration",
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        "url": "https://lemonergy.com/learn/glossary/abuse-testing/",
        "mentions": [
          "overcharge"
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    },
    {
      "id": "term:datasheet",
      "type": "Term",
      "label": "Datasheet",
      "properties": {
        "id": "datasheet",
        "name": "Datasheet",
        "section": "topic-ratings",
        "definition": "The manufacturer’s specification sheet for a cell: nominal capacity, nominal voltage, voltage window, continuous and peak currents, operating temperatures, dimensions, mass and cycle life, each tied to the test conditions it was measured under.",
        "related": [
          "nominal-capacity",
          "nominal-voltage",
          "operating-temperature",
          "cycle-life",
          "iec-62620"
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        "url": "https://lemonergy.com/learn/glossary/datasheet/",
        "mentions": [
          "voltage-window"
        ]
      }
    },
    {
      "id": "term:rate-capability",
      "type": "Term",
      "label": "Rate capability",
      "properties": {
        "id": "rate-capability",
        "name": "Rate capability",
        "section": "topic-ratings",
        "definition": "How much of its capacity a cell can still deliver as the C-rate rises. It is measured by discharging at a series of rates and falls faster for thick, dense electrodes and at low temperature.",
        "related": [
          "c-rate",
          "ideal-duration",
          "polarization",
          "tortuosity",
          "peukert"
        ],
        "url": "https://lemonergy.com/learn/glossary/rate-capability/",
        "mentions": []
      }
    },
    {
      "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"
      }
    }
  ]
}