Output

Joining PowerX First doesn't change charging speed — that's not the cause. Here's what's actually going on:

**Membership doesn't affect output.** The maximum output (150kW) is unrelated to whether you're a PowerX First member or a general member. First membership changes your price (discounted rate per kWh), reservation privileges, and max charging time — not the speed (/sources/en/runbooks/charging-use.md:46, /sources/en/runbooks/charging-troubleshooting.md:460).

**150kW is a maximum, not a constant.** Per the official Help Center article, the max is 150kW when one port is in use, and 120kW when two ports (two vehicles) are charging simultaneously (/sources/ja/public-help/articles/23123162280473.md:20).

**Actual output varies with conditions**, so it may not reach the maximum (/sources/en/runbooks/charging-use.md:27):
- **Ambient or charger temperature** — the charger automatically limits output when it's hot or cold
- **Your vehicle's acceptance capacity** — the charger adjusts to what your car can take in
- **Battery state of charge (SOC)** — output naturally tapers as the battery fills up; this is normal behavior, not a malfunction (/sources/en/runbooks/charging-troubleshooting.md:460)

A reading of 20–30kW is typically the result of one or more of these factors — most commonly a warm battery/charger, high ambient temperature, or a battery that's already fairly charged.

One reassurance: billing is based on the energy actually delivered (kWh), not time, so a lower output doesn't put you at a pricing disadvantage (/sources/en/runbooks/charging-troubleshooting.md:460).

If the output stays unusually low even with a low battery and mild temperatures, let us know your vehicle model and the station, and we can check the individual case.

Judge / review

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      "Maximum output (150kW) is unrelated to membership type",
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Output

ご加入のタイミングと出力は関係しておりません。PowerX Firstへの加入・非加入にかかわらず、充電出力に差はありません。

出力が150kWにならない主な理由は以下のとおりです。

- **会員種別は出力に影響しない**:最大出力(150kW)は会員種別(PowerX First/一般)に関係なく同じです。
- **ステーションの仕様**:1口利用で最大150kW、2口同時充電の場合は最大120kWです。
- **環境要因による自動制限**:外気温や充電器本体の温度により、出力が自動的に制限される場合があります。
- **車両側の受電容量**:車両が受け入れられる電力の大きさにも左右されるため、車種によっては最大出力に達しません。
- **SOC(バッテリー残量)の上昇**:充電が進むにつれて出力が下がるのは一般的な挙動です。

なお、料金は時間ではなく充電した電力量(kWh)に応じた従量課金制のため、出力が低くても時間的に不利になることはありません。

万が一、車両の受電容量から見て明らかに低すぎる出力が続く場合は、個別に状況を確認させていただきますので、お使いの車種などの詳細をお知らせください。

参考:公式ヘルプ「充電出力はどのくらいですか?」 https://support-evcs.power-x.jp/hc/ja/articles/23123162280473
(出典: /sources/ja/public-help/articles/23123162280473.md:20、/sources/ja/runbooks/charging-use.md:42-46、/sources/ja/runbooks/charging-troubleshooting.md:460)

Judge / review

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Output

Short answer: PowerX First doesn't change charging speed — the 150 kW figure is the station's maximum, not a guaranteed output, and membership type has no effect on it.

What the guidance says:

- Maximum output is 150 kW when a single port is used, and up to 120 kW when two ports charge simultaneously. Output does not vary by plan or membership (en/runbooks/charging-use.md:27, en/runbooks/charging-use.md:46).
- Charging speed is the same for PowerX First and general members, and the same across the Economy/Regular/Premium menus — those menus differ only in price and renewable-energy ratio (en/runbooks/compatibility.md:139).
- Actual output is commonly held down by: ambient temperature and charger temperature (automatic limiting), the vehicle's own maximum acceptance capacity, and rising state of charge — output declining as the battery fills is normal behaviour (en/runbooks/charging-troubleshooting.md:460).

So a 20–30 kW reading is most consistent with the vehicle's acceptance curve, battery temperature, a high SOC, or the second port being in use on the unit — not with the membership change you made mid-session.

Two things worth knowing:
- Billing is per kWh (volume-based), not per minute, so a slower session does not cost you extra in time charges (en/runbooks/charging-troubleshooting.md:460).
- If the session looks genuinely wrong, the standard first steps are to return the connector to the unit and start again with "Charge again", or try the opposite charger (en/runbooks/charging-troubleshooting.md:197).

The workspace does not contain a per-vehicle output table, so I can't confirm the exact cause for your car. If you send the vehicle model, SOC at the time, battery temperature/cold-soak conditions, the station and time, and whether the other port was in use, I can check the case specifics against the station and output references.

Judge / review

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Output

ご加入のタイミングと出力低下は関係ありません。PowerX Firstは料金の割引や予約特典に関する会員制度で、充電出力（最大150kW）は会員種別によって変わりません。一般会員でも同じ上限です。

出力が20〜30kWにとどまる主な理由は以下のとおりです。

・外気温や充電器本体の温度により、充電器側で自動的に出力が制限される場合があります。
・車両側の受電能力（バッテリーの状態・温度・充電率SOC）に左右されます。SOCが上がると出力が下がるのは正常な挙動です。
・2口（2台同時）充電の場合は最大120kWが上限になります。
・ステーションによっては最大出力が120kWに制限されている拠点もあり、順次150kWへアップデート予定と案内されています。

なお、課金は充電量（kWh）ベースで時間課金ではないため、出力が低い場合でも時間分の不利は発生しません。

まずはコネクタを本体に戻し、アプリの「再度充電する」から再試行いただく、あるいは反対側の充電器をお試しください。それでも改善しない場合は、車種・ステーション名・発生時刻をお知らせいただければ、個別に出力状況を確認します。

参照: /sources/ja/runbooks/charging-use.md:42-47、/sources/ja/public-help/articles/23123162280473.md:19-21（公式「充電出力はどのくらいですか？」）、/sources/ja/runbooks/charging-troubleshooting.md:195

Judge / review

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