{
  "node": {
    "id": "term:state-of-power",
    "type": "Term",
    "label": "State of power",
    "properties": {
      "id": "state-of-power",
      "name": "State of power",
      "abbr": "SOP",
      "section": "topic-state",
      "definition": "The maximum charge or discharge power a battery can deliver for the next few seconds without breaking a voltage, current or temperature limit. The BMS recomputes it continuously from SOC, temperature and resistance and sends it to the motor controller.",
      "unit": "W",
      "related": [
        "power",
        "state-of-charge",
        "continuous-current",
        "derating",
        "bms",
        "state-of-function"
      ],
      "url": "https://lemonergy.com/learn/glossary/state-of-power/",
      "mentions": []
    }
  },
  "edges": [
    {
      "id": "edge:1247",
      "source": "term:state-of-power",
      "target": "topic:topic-state",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:1248",
      "source": "term:state-of-power",
      "target": "term:power",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:1249",
      "source": "term:state-of-power",
      "target": "term:state-of-charge",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:1250",
      "source": "term:state-of-power",
      "target": "term:continuous-current",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:1251",
      "source": "term:state-of-power",
      "target": "term:derating",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:1252",
      "source": "term:state-of-power",
      "target": "term:bms",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:1253",
      "source": "term:state-of-power",
      "target": "term:state-of-function",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-state",
      "type": "Topic",
      "label": "State estimation",
      "properties": {
        "id": "topic-state",
        "name": "State estimation",
        "lede": "The quantities a battery management system estimates but cannot measure directly.",
        "context": "Distinguish internal states from noisy measurement estimates.",
        "example": "Current-sensor bias accumulates in coulomb counting. Exact model SOC does not establish real estimator accuracy.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/capacity-and-c-rate/",
        "lesson_label": "Open charge balance"
      }
    },
    {
      "id": "term:power",
      "type": "Term",
      "label": "Power",
      "properties": {
        "id": "power",
        "name": "Power",
        "section": "topic-units",
        "definition": "The rate at which a cell delivers or absorbs energy: voltage times current, in watts. Power is limited by internal resistance and temperature long before capacity runs out.",
        "formula": "P = V × I",
        "unit": "W",
        "related": [
          "watt",
          "specific-power",
          "state-of-power",
          "internal-resistance"
        ],
        "example": {
          "title": "Separate power from energy",
          "text": "A 100 W load running for 30 min uses 50 Wh. Power tells you how fast energy is transferred; the duration determines how much energy is transferred."
        },
        "url": "https://lemonergy.com/learn/glossary/power/",
        "mentions": []
      }
    },
    {
      "id": "term:state-of-charge",
      "type": "Term",
      "label": "State of charge",
      "properties": {
        "id": "state-of-charge",
        "name": "State of charge",
        "abbr": "SOC",
        "section": "topic-state",
        "definition": "How full a cell is, as a fraction of its available capacity. State of charge, like temperature, affects how fast a stored cell ages.",
        "unit": "%",
        "related": [
          "depth-of-discharge",
          "ocv-soc-curve",
          "coulomb-counting",
          "state-of-health",
          "bms"
        ],
        "lesson": "fundamentals/battery-aging/#storage-soc",
        "example": {
          "title": "Interpret a charge inventory",
          "text": "If available capacity is 5 Ah and 3 Ah remains by the chosen estimator, SOC is 60%. A different estimate of available capacity changes this percentage, so compare SOC values only with the capacity convention recorded."
        },
        "url": "https://lemonergy.com/learn/glossary/state-of-charge/",
        "mentions": [
          "usable-capacity"
        ]
      }
    },
    {
      "id": "term:continuous-current",
      "type": "Term",
      "label": "Continuous and peak current",
      "properties": {
        "id": "continuous-current",
        "name": "Continuous and peak current",
        "section": "topic-ratings",
        "definition": "The current a cell can supply indefinitely without exceeding its temperature limit, and the higher current it can supply for a stated few seconds. Peak ratings are only valid for the duration and starting temperature given.",
        "unit": "A",
        "related": [
          "c-rate",
          "datasheet",
          "state-of-power",
          "derating"
        ],
        "url": "https://lemonergy.com/learn/glossary/continuous-current/",
        "mentions": []
      }
    },
    {
      "id": "term:derating",
      "type": "Term",
      "label": "Derating",
      "properties": {
        "id": "derating",
        "name": "Derating",
        "section": "topic-pack",
        "definition": "Reducing the allowed charge or discharge power as the battery approaches a limit — low temperature, high temperature, high or low SOC, or age. It is how a BMS keeps the cells safe while letting the vehicle do as much as it can.",
        "related": [
          "state-of-power",
          "bms",
          "operating-temperature",
          "fast-charging",
          "limp-home-mode"
        ],
        "url": "https://lemonergy.com/learn/glossary/derating/",
        "mentions": [
          "state-of-charge"
        ]
      }
    },
    {
      "id": "term:bms",
      "type": "Term",
      "label": "Battery management system",
      "properties": {
        "id": "bms",
        "name": "Battery management system",
        "abbr": "BMS",
        "section": "topic-pack",
        "definition": "The electronics and software that keep a battery inside its safe window: measuring every cell voltage and many temperatures, estimating SOC and SOH, balancing cells, computing current limits, controlling the contactors and reporting over the vehicle network.",
        "related": [
          "state-of-charge",
          "cell-balancing",
          "state-of-power",
          "cell-supervision-circuit",
          "contactor",
          "can-bus"
        ],
        "lesson": "fundamentals/battery-basics/#cell-module-pack",
        "url": "https://lemonergy.com/learn/glossary/bms/",
        "mentions": [
          "state-of-health",
          "cell-voltage"
        ]
      }
    },
    {
      "id": "term:state-of-function",
      "type": "Term",
      "label": "State of function",
      "properties": {
        "id": "state-of-function",
        "name": "State of function",
        "abbr": "SOF",
        "section": "topic-state",
        "definition": "A yes-or-no, or graded, judgement of whether a battery can perform a specific task right now — crank an engine, deliver the next ten seconds of power — combining state of charge, state of health and temperature.",
        "related": [
          "state-of-power",
          "state-of-charge",
          "state-of-health"
        ],
        "url": "https://lemonergy.com/learn/glossary/state-of-function/",
        "mentions": []
      }
    }
  ]
}