1. はじめにview
The EF ECOFLOW DELTA 3 Ultra Plus Portable Power Station with 2x400W Solar Panels is a versatile power solution designed for reliable energy supply in various scenarios, including home backup, outdoor activities, and off-grid living. This system features a 3072Wh LiFePO4 battery, capable of delivering 3600W of continuous power with a 7200W surge capacity. Its modular design allows for expandable capacity from 3kWh up to 11kWh, adapting to diverse power requirements.
The power station is engineered for durability and longevity, utilizing an advanced LiFePO4 battery and an EV-grade cell-to-chassis (CTC) structure, ensuring a 10-year lifespan under daily use. It incorporates a 24/7 smart battery management system (BMS) for protection against extreme temperatures and heavy loads. The system also offers multiple charging options and a rapid <10ms Uninterruptible Power Supply (UPS) feature for seamless power transfer during outages。

画像1.1: The DELTA 3 Ultra Plus providing stable power to household appliances, demonstrating its 3600W output and 7200W surge capability.

画像1.2: 以上view of the six versatile charging methods available for the DELTA 3 Ultra Plus, highlighting its rapid charging capabilities.
2. 含まれるもの
パッケージには次のコンポーネントが含まれています。
- 1 x EF ECOFLOW DELTA 3 Ultra Plus Portable Power Station
- 2 x EF ECOFLOW 400W Portable Solar Panels
- Necessary charging cables (AC charging cable, car charging cable, solar charging cable)
- ユーザーマニュアルと保証書
Please inspect all items upon receipt to ensure they are present and undamaged. If any items are missing or damaged, contact customer support immediately.
3. セットアップ
3.1 初期充電
Before first use, fully charge the DELTA 3 Ultra Plus. Connect the AC charging cable to a standard wall outlet. The display will show the charging progress. A full charge from 0% to 80% typically takes under an hour using X-Stream fast charging.
3.2 ソーラーパネルの接続
To connect the 400W solar panels:
- Unfold the solar panels and position them in direct sunlight for optimal charging.
- Connect the solar charging cable to the solar input port on the DELTA 3 Ultra Plus.
- Connect the other end of the solar charging cable to the solar panels. Ensure a secure connection.
The power station's display will indicate solar input wattage. For maximum efficiency, adjust the panel angle throughout the day to follow the sun.

画像3.1: Connecting the solar panel to the DELTA 3 Ultra Plus for solar charging, illustrating an outdoor setup.
3.3 Home Connection Options
The DELTA 3 Ultra Plus offers two primary methods for home integration:
- Manual Transfer Switch: Allows seamless switching between grid power and the DELTA 3 Ultra Plus to meet diverse energy needs.
- Inlet Box: Connect the built-in AC socket with an Inlet Box to power your home appliances directly.

画像3.2: Visual representation of connecting the power station to a home using either a manual transfer switch or an inlet box.
4. 操作手順
4.1 電源のオン/オフ
Press and hold the main power button for 3 seconds to turn the unit on or off. The LCD screen will illuminate, displaying battery status and output information.
4.2AC出力
ACコンセントを使用するには:
- Ensure the DELTA 3 Ultra Plus is powered on.
- Press the AC ON/OFF button to activate the AC output. The AC indicator on the screen will light up.
- Plug your devices into the available AC outlets. The unit provides 4 x 120V, 20A AC outputs and 1 x TT-30 RV Port (120V, 30A).
- To turn off AC output, press the AC ON/OFF button again.

画像4.1: Front panel of the DELTA 3 Ultra Plus, detailing the various output ports including AC, USB-A, and USB-C.
4.3 DC and USB Output
To use DC or USB ports:
- Ensure the DELTA 3 Ultra Plus is powered on.
- Press the DC ON/OFF button (if applicable) to activate DC output.
- Plug your devices into the USB-A (18W), USB-C (140W, 45W), or 12V cigarette lighter port.
- To turn off DC/USB output, press the corresponding ON/OFF button.
ビデオ4.2: Official product video from EcoFlow Inc. demonstrating the DELTA 3 Ultra Plus in various usage scenarios, including powering home appliances and charging devices. This video highlights the product's versatility and ease of use.
4.4 スマートアプリの機能
The EcoFlow app provides enhanced control and monitoring capabilities:
- Smart Remote Switching: Reduce waste and increase runtime for essential devices by remotely managing power output.
- Smart Power Reserve: Set a desired battery threshold to automatically shed non-essential loads during outages。
- AIモード: Optimize charging during low-cost periods and use during peak times to save on electricity bills.
- セルフパワー: Store solar energy to reduce grid dependency and lower electricity costs.
- Deeper Insights: Monitor energy usage, savings, and solar generation with an intuitive dashboard, tracking battery status, real-time electricity rates, and financial savings.

画像4.3: The EcoFlow app interface demonstrating smart remote switching and power reserve functionalities for optimized energy management.
5. メンテナンス
5.1一般的なケア
- Keep the power station and solar panels clean and dry. Use a soft, dry cloth for cleaning.
- 使用していないときは、ユニットを長時間極端な温度や直射日光にさらさないでください。
- Ensure proper ventilation around the unit during operation and charging.
5.2 バッテリー寿命
The DELTA 3 Ultra Plus is designed for 10 years of daily use thanks to its LiFePO4 battery. To maximize battery lifespan:
- 使用しないときは、ユニットを涼しく乾燥した場所に保管してください。
- For long-term storage, maintain a charge level between 30% and 80%.
- バッテリーを頻繁に完全に放電することは避けてください。

画像5.1: The advanced Smart Battery Management System (BMS) ensures 24/7 protection and extends battery life by monitoring various parameters.
6。 トラブルシューティング
If you encounter issues with your DELTA 3 Ultra Plus, refer to the following common problems and solutions:
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| ユニットの電源が入らない | バッテリー残量が少ない、電源ボタンが正しく押されていない | Charge the unit. Press and hold the power button for 3 seconds. |
| AC出力が機能しない | AC output not activated, overload, low battery | Press AC ON/OFF button. Reduce load. Charge the unit. |
| ソーラー充電が機能しない | Insufficient sunlight, incorrect panel connection, damaged cable/panel | Ensure direct sunlight. Check cable connections. Inspect panels/cables for damage. |
| ユニットにエラーコードが表示される | Internal fault, specific issue | Refer to the full user manual for specific error code meanings and solutions. Contact customer support if the issue persists. |
For more detailed troubleshooting, please consult the comprehensive user manual provided with your product or visit the official EF ECOFLOW support webサイト。
7. 仕様
Key technical specifications for the EF ECOFLOW DELTA 3 Ultra Plus Portable Power Station and 400W Solar Panels:
| 特徴 | 仕様 |
|---|---|
| ブランド | EFエコフロー |
| モデル名 | DELTA 3 Ultra Plus with 2x400W Solar Panels |
| モデル番号 | EF-DL-H02-3UP |
| 電池のタイプ | リン酸鉄リチウム |
| バッテリー容量 | 3072Wh(11kWhまで拡張可能) |
| AC出力電力 | 3600W(7200Wサージ) |
| ACコンセント合計 | 4 x 120V, 20A AC Outlets + 1 x TT-30 RV Port (120V, 30A) |
| USB-C出力 | 1 x 140W最大、2 x 45W最大 |
| USB-A出力 | 1 x 18W 最大 |
| DC出力 | 12V Cigarette Lighter Port, Anderson Port (12V, 30A) |
| AC充電入力 | 1800W (0-80% in 89 mins) |
| ソーラー充電入力 | 1600W (0-80% in 101 mins with 400W panels) |
| UPS機能 | <10ms Auto-Switch |
| 騒音レベル | 25dB (under 600W load) |
| 製品寸法 | 長さ24.1インチ x 幅12.9インチ x 高さ15.6インチ |
| Solar Panel Rated Power | パネルあたり400W |
| 太陽光パネルの効率 | 22.40% |
| ソーラーパネルの防水等級 | IP68 |

画像7.1: Detailed specifications for the 400W Portable Solar Panel, including its construction and electrical characteristics.
8. 保証とサポート
8.1 保証情報
The EF ECOFLOW DELTA 3 Ultra Plus Portable Power Station comes with a 5年間のメーカー保証この保証は、通常の使用状況における材料および製造上の欠陥を対象としています。保証請求の際は、購入証明書を保管してください。
8.2 カスタマーサポート
For technical assistance, troubleshooting, or warranty inquiries, please contact EF ECOFLOW customer support through their official website or the contact information provided in your product packaging. You can also find additional resources and FAQs online.
オンラインリソース: 訪問する EcoFlow Inc. Brand Store 製品情報およびサポートについては、こちらをご覧ください。