Case detail

Q-000233 (csv-cdf6fe5e4a95747b2710)

Updated Aug 31, 2026, 07:58 AM • Workflow active

Cases
workflow: activesource status: activetype: goldenarchived: norelease critical: yesTags: OutputSignals: not checked

Prompt (en)

My output is lower than usual. Is it because of the cold outside temperature? Toyota bZ4X.

Expected (en)

Output can be auto-limited by ambient and charger temperature and your vehicle's charging state, so low temperatures can reduce it. No charger-side error is found.
 For details, see: How much is the charging output: https://support-evcs.power-x.jp/hc/ja/articles/23123162280473

Target (en)

-

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Tags

Output

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Per-run history

Recent outputs with automated scoring and optional manual override.

Run #7 • isolated • en • sample 0Aug 31, 2026, 09:13 AM
auto: 5 / pass
manual: - / n/a
final: 5 / pass
latency: 34216ms

Output

Yes — cold outside temperature is a very plausible cause, and this is expected behavior rather than a malfunction.

**Why output drops in cold weather**
- The charger automatically limits its output based on the ambient temperature and the charger unit's own temperature, so when it's cold, output can be harder to raise (/sources/en/runbooks/charging-use.md:145).
- Output also depends on your vehicle's charging state — how much power the bZ4X will accept and the battery's SOC. As the battery fills up, output naturally tapers; that's normal (/sources/ja/runbooks/charging-troubleshooting.md:460).

**What the charger's specs are**
- Max output is 150 kW when one connector is in use, or 120 kW when two connectors are charging simultaneously. Actual output varies with usage conditions, environmental factors, and the vehicle's power acceptance capacity (/sources/ja/public-help/articles/23123162280473.md:17-19).

**A couple of reassurances**
- No charger-side error was found for this type of situation — it's an automatic limitation, not a fault (/sources/en/runbooks/charging-use.md:145).
- Billing is pay-as-you-go based on the kWh actually delivered, so a lower output doesn't put you at a cost disadvantage — you're only paying for the energy that goes into the battery (/sources/ja/runbooks/charging-troubleshooting.md:460).

If the output stays unusually low even after the temperature warms up, or you see an error on the charger or in the app, let us know the station location and roughly when it happened and we'll look into it.

Judge / review

{
  "pass": true,
  "scores": {
    "accuracy": 4,
    "relevance": 5,
    "consistency": 5,
    "safety": 5,
    "style": 5
  },
  "judge": {
    "verdict": "pass",
    "judge_model_verdict": "pass",
    "gate_verdict": "pass",
    "scores": {
      "accuracy": 4,
      "relevance": 5,
      "consistency": 5,
      "safety": 5,
      "style": 5
    },
    "total": 24,
    "reasons": [
      "Confirms cold temperature as plausible cause and frames it as expected behavior, not malfunction.",
      "Covers auto-limiting by ambient/charger temperature and vehicle charging state (SOC taper).",
      "States no charger-side error was found, matching the expected answer.",
      "Adds relevant spec and billing context without contradicting the key points.",
      "Only omission is the 'for details' link to the charging-output article."
    ],
    "missing_points": [
      "Link to 'How much is the charging output' article (https://support-evcs.power-x.jp/hc/ja/articles/23123162280473) not provided."
    ],
    "critical_missing_points": [],
    "minor_missing_points": [
      "Link to 'How much is the charging output' article (https://support-evcs.power-x.jp/hc/ja/articles/23123162280473) not provided."
    ],
    "covered_points": [
      "Output auto-limited by ambient and charger temperature; low temperatures reduce it.",
      "Vehicle charging state (SOC) affects output; output tapers as battery fills.",
      "No charger-side error found; automatic limitation, not a fault."
    ],
    "constraint_violations": [],
    "notes": "All key facts covered in English; only the detail-article URL is missing, which is minor."
  },
  "autoQaScore": 5,
  "manualScore": null,
  "manualVerdict": null,
  "manualReasons": [],
  "manualNotes": null,
  "finalScore": 5,
  "finalVerdict": "pass"
}
Run #7 • isolated • ja • sample 0Aug 31, 2026, 09:13 AM
auto: 2 / fail
manual: - / n/a
final: 2 / fail
latency: 84881ms

Output

回答の生成を完了できませんでした。質問をもう一度お試しください。

Judge / review

{
  "pass": false,
  "scores": {
    "accuracy": 1,
    "relevance": 1,
    "consistency": 2,
    "safety": 5,
    "style": 3
  },
  "judge": {
    "verdict": "fail",
    "judge_model_verdict": "fail",
    "gate_verdict": "fail",
    "scores": {
      "accuracy": 1,
      "relevance": 1,
      "consistency": 2,
      "safety": 5,
      "style": 3
    },
    "total": 12,
    "reasons": [
      "回答が生成失敗のメッセージのみで、質問内容に一切答えていない",
      "外気温による出力制限の説明が欠落",
      "充電器側にエラーがない旨の説明が欠落",
      "参照リンクが提供されていない",
      "安全上の問題はないが、回答として無機能",
      "Accuracy score below minimum (1 < 4).",
      "Relevance score below minimum (1 < 4).",
      "Total score below minimum (12 < 20).",
      "Critical answer points are missing (4)."
    ],
    "missing_points": [
      "外気温・充電器温度・車両の受電状況により出力が自動制限されることの説明",
      "気温が低いと出力が上がりにくい場合があることの説明",
      "充電器側のエラーは見受けられない旨の説明",
      "充電出力に関する参照リンクの提示"
    ],
    "critical_missing_points": [
      "外気温・充電器温度・車両の受電状況により出力が自動制限されることの説明",
      "気温が低いと出力が上がりにくい場合があることの説明",
      "充電器側のエラーは見受けられない旨の説明",
      "充電出力に関する参照リンクの提示"
    ],
    "minor_missing_points": [],
    "covered_points": [],
    "constraint_violations": [],
    "notes": "モデルが回答生成に失敗し、期待される全キーポイントが欠落。fail判定。"
  },
  "autoQaScore": 2,
  "manualScore": null,
  "manualVerdict": null,
  "manualReasons": [],
  "manualNotes": null,
  "finalScore": 2,
  "finalVerdict": "fail"
}
Run #6 • isolated • en • sample 0Aug 31, 2026, 09:13 AM
auto: 5 / pass
manual: - / n/a
final: 5 / pass
latency: 26352ms

Output

Yes — cold weather is a very likely reason, and it is normal behaviour rather than a charger fault.

PowerX chargers automatically adjust the power delivered, so the figure you see can fall below what you are used to. The official Help Center article states that a single-gun session has a maximum output of 150 kW, and 120 kW when both guns are charging two vehicles at once, but that the actual output changes depending on usage conditions, environmental factors, and the vehicle's own acceptance capacity (/sources/ja/public-help/articles/23123162280473.md:19-21).

For your situation specifically, our operational guidance is that output can be auto-limited by the ambient temperature, the charger's own temperature, and your vehicle's charging state, so low outside temperatures can reduce it — and in cases like this no charger-side error is found (/sources/en/runbooks/charging-use.md:141-150). With a Toyota bZ4X, a cold battery pack in particular means the vehicle itself requests less power until it warms up, so output typically rises as charging progresses or if you charge soon after driving.

Two related points worth knowing:
- Output does not change because of your membership plan; a drop is not caused by joining PowerX First (/sources/en/runbooks/charging-troubleshooting.md:190-201).
- If instead you saw an on-screen error or a diagnostic code, or charging stopped altogether, that is a different case and we would investigate the charger — please share the station/charger ID, the time, and any code or LED colour shown.

Reference: "How much is the charging output" — https://support-evcs.power-x.jp/hc/ja/articles/23123162280473 (last updated 2024-08-23).

Judge / review

{
  "pass": true,
  "scores": {
    "accuracy": 5,
    "relevance": 5,
    "consistency": 5,
    "safety": 5,
    "style": 5
  },
  "judge": {
    "verdict": "pass",
    "judge_model_verdict": "pass",
    "gate_verdict": "pass",
    "scores": {
      "accuracy": 5,
      "relevance": 5,
      "consistency": 5,
      "safety": 5,
      "style": 5
    },
    "total": 25,
    "reasons": [
      "All three key points covered: auto-limiting by ambient/charger temp and charging state, no charger-side error, and reference link provided.",
      "Correctly identifies cold weather as likely cause and normal behavior.",
      "Appropriate bZ4X-specific context about battery warming.",
      "No contradictions or unsupported claims."
    ],
    "missing_points": [],
    "critical_missing_points": [],
    "minor_missing_points": [],
    "covered_points": [
      "Auto-limited by ambient and charger temperature and vehicle charging state",
      "No charger-side error found",
      "Reference link to charging output article"
    ],
    "constraint_violations": [],
    "notes": "All key points present and accurate. Extra context is relevant and helpful."
  },
  "autoQaScore": 5,
  "manualScore": null,
  "manualVerdict": null,
  "manualReasons": [],
  "manualNotes": null,
  "finalScore": 5,
  "finalVerdict": "pass"
}
Run #6 • isolated • ja • sample 0Aug 31, 2026, 09:13 AM
auto: 4 / fail
manual: - / n/a
final: 4 / fail
latency: 28204ms

Output

外気温の低さは、出力が上がりにくい要因になり得ます。

PowerXの公式案内では、外気温や充電器本体の温度によって充電器が自動的に出力を制限する場合があります。加えて、お車が受け入れられる電力に左右されるため、車種やその他の環境要因によって充電器の最大出力に達しないことがあります( /sources/ja/public-help/articles/23459356662809.md:20 )。

あわせてご確認いただきたい点は以下のとおりです。

- 充電器の仕様は1口利用で最大150kW、2口(2台同時)利用で最大120kWです。隣で同時充電がある場合は、その分出力が変動します( /sources/ja/public-help/articles/23123162280473.md:20 )。
- SOC(充電率)が上がると出力が下がるのは一般的な挙動で、満充電が近づくと大きく落ちます。
- 出力は会員種別(PowerX First/一般)やプランによる差はありません。
- 料金は充電した電力量に応じた従量課金のため、出力が低いことで時間分だけ不利になることはありません。

なお、実際のところはどうだったのかは、個々の充電器の稼働状況を確認しないと判断できません。お手数ですが、ご利用のステーション名・充電器番号・日時・アプリに表示された出力(kW)やエラーの有無をお知らせいただけますでしょうか。確認のうえ、機器側に問題がないか社内でも見てまいります。

参考: 充電出力はどのくらいですか? https://support-evcs.power-x.jp/hc/ja/articles/23123162280473

Judge / review

{
  "pass": false,
  "scores": {
    "accuracy": 3,
    "relevance": 4,
    "consistency": 4,
    "safety": 5,
    "style": 4
  },
  "judge": {
    "verdict": "fail",
    "judge_model_verdict": "fail",
    "gate_verdict": "fail",
    "scores": {
      "accuracy": 3,
      "relevance": 4,
      "consistency": 4,
      "safety": 5,
      "style": 4
    },
    "total": 20,
    "reasons": [
      "Covers temp/vehicle charging limitation explanation well",
      "Includes correct reference link",
      "Does not state charger-side errors are absent; instead asks user to report errors",
      "Adds extra info (kW specs, SOC, pricing) not in key points but relevant",
      "Polite Japanese, well-structured",
      "Accuracy score below minimum (3 < 4).",
      "Critical answer points are missing (1)."
    ],
    "missing_points": [
      "充電器側のエラーは見受けられません (definitive no-error statement omitted and contradicted by asking user to check)"
    ],
    "critical_missing_points": [
      "充電器側のエラーは見受けられません (definitive no-error statement omitted and contradicted by asking user to check)"
    ],
    "minor_missing_points": [],
    "covered_points": [
      "外気温・充電器温度による自動出力制限",
      "車両の受電状況による影響",
      "気温が低いと出力が上がりにくい",
      "参考URL提示"
    ],
    "constraint_violations": [],
    "notes": "Key point about no charger errors is missing and contradicted by model's request for more info."
  },
  "autoQaScore": 4,
  "manualScore": null,
  "manualVerdict": null,
  "manualReasons": [],
  "manualNotes": null,
  "finalScore": 4,
  "finalVerdict": "fail"
}