EcoFlow DELTA Pro User Manual

Disclaimer

Please read this user manual carefully before using the product and use it correctly. After reading, please keep it in a safe place. Improper handling may cause severe injury to yourself or others, or product damage or property loss. By using the product, you agree that you have understood all the terms and content within this user manual.

EcoFlow shall not be held responsible for any consequences arising from your own actions.

In accordance with legal regulations, EcoFlow reserves the right to the final interpretation of this user manual and all related documentation. We will not notify customers of any updates, version changes, or service terminations. Please visit the official EcoFlow website to check for the latest product information.

EcoFlow DELTA Pro (hereinafter referred to as "DELTA Pro")

1. Specifications

Basic Specifications

Output Specifications

*The car socket and DC5521 share output, so the total output is Max 126W.

Input Specifications

Battery Specifications

Temperature Range

*Charging and output of this product depend on the actual battery temperature, not the ambient temperature.

Additional Equipment

2. Safety Guide

2.1 Usage Precautions

1. Do not place the product near heat sources such as heating devices.
2. Do not get the product wet with water or other liquids. Do not use the product in rain or in humid environments.
3. Do not use the product in places with strong static electricity or magnetic fields.
4. Do not disassemble the product or pierce it with sharp objects.
5. Do not short-circuit the product with metal objects.
6. Do not use non-genuine parts or accessories. For purchase of parts or accessories, please check the official EcoFlow website or official store.
7. When using the product, adhere to the operating temperature range specified in this user manual. If the operating temperature is too high, it may cause the battery to ignite. If the operating temperature is too low, product performance may be significantly reduced, and it may not be usable normally.
8. Do not place heavy objects on the product.
9. Do not forcibly stop the fan during product operation. Do not use in high temperature, high humidity, or dusty environments.
10. Do not subject the product to strong impact or vibration. If a strong impact occurs, immediately turn off the power and stop using the product. When carrying, secure it firmly and be careful to avoid vibration or impact.
11. In case of unexpected water ingress, safely dry the product, place it in a location away from people and flammable materials, and do not approach the product until it is completely dry. If it is completely dry, do not use it and dispose of it properly according to the instructions in "2.2 Disposal". In case of product fire, extinguish it following the priority order: Water ⇒ Sand ⇒ Fire Blanket ⇒ Powder Fire Extinguisher ⇒ Carbon Dioxide Fire Extinguisher, and contact the fire department.
12. If the product's port is dirty, wipe it with a dry cloth.
13. Place the product carefully. If the product is severely damaged due to tipping over, immediately turn off the power, safely dry it, place it in a location away from people and flammable materials, and dispose of it according to local regulations.
14. Store the product out of reach of children and pets.
15. Store the product in a dry, well-ventilated place.
16. In humid environments (near the sea or waterways), it is recommended to use a moisture-proof bag to prevent the product from getting wet. If water is found inside the product, do not use it or turn it on. Take anti-static measures before touching the product, then place the unit in a safe, dry, open area and contact EcoFlow Customer Service immediately.
17. This product is not recommended for use as a power source for medical emergency equipment related to personal safety, such as hospital-grade CPAP (Continuous Positive Airway Pressure) or ECMO (Extracorporeal Membrane Oxygenation). For usage limitations, follow your doctor's instructions and consult the manufacturer.
18. Using the power supply unit will inevitably generate an electromagnetic field, which may affect the normal operation of pacemakers, cochlear implants, hearing aids, defibrillators, or other medical implants and personal medical devices. If you are using such medical devices, contact the manufacturer for information on device usage restrictions and confirm the safe distance between the medical implant (pacemaker, cochlear implant, hearing aid, defibrillator, etc.) and the unit during operation.
19. When the power supply unit is connected to a refrigerator in normal mode, the power supply unit may automatically shut down due to the refrigerator's power fluctuations. Therefore, if you are supplying power to a refrigerator storing important items such as medicines or vaccines, it is recommended to set the AC output to "Always On" in the app to ensure uninterrupted power supply. Also, pay attention to the power consumption status.

2.2 Disposal Precautions

1. This product contains a battery. When disposing of it, please fully discharge the battery and contact your local authorities for disposal methods. Batteries are hazardous materials and should not be disposed of with general waste.
2. If the product malfunctions and cannot be fully discharged, please contact your local authorities for disposal methods.
3. If over-discharged, the battery may become unstartable. Dispose of it using the same method as described in point 2 above.

3. Start Guide

3.1 Parts Identification

The DELTA Pro has various ports and buttons for operation.

Front Panel:

• USB-A Output Ports (x2): Standard USB-A ports.
• USB-A Fast Charging Output Port: Supports fast charging standards.
• LCD Display: Shows status, battery level, power input/output, and error codes.
• Ambient Light Sensor: Adjusts display brightness.
• AC Output Ports (x5): Standard AC outlets, rated at 20A per port.

Rear Panel:

• Solar Charger/Car Socket DC Charging Port: For connecting solar panels or car chargers.
• X-Stream Charge/Custom Charge Switch: Selects between fast charging and custom charging modes.
• AC Charging Port: For connecting the AC power adapter.
• Overload Protection Unit: A button that pops out if the unit is overloaded.
• Extra Battery Connection Port: For connecting an optional Extra Battery.

Side Panel (example):

• Anderson Output Port: High-current DC output.
• 12V DC Power Button: Turns the 12V DC output on/off.
• IOT Button: For Wi-Fi connectivity and app pairing.
• Pairing Button: For Bluetooth pairing.
• Infinity Port: For future expansion or accessories.
• Car Socket Output Port: Standard 12V car socket output.
• DC5521 Output Port: DC output ports.
• Remote Control Port: For connecting a remote controller.

Note on Standby Switch: The standby switch (for DELTA Pro Remote Controller and App) allows the unit to be controlled remotely via Bluetooth even when the main power is off. This consumes battery power. If not used remotely, switch it OFF.

3.2 Display Icon Explanation

The LCD display shows various indicators:

• Pairing Indicator: Shows Bluetooth pairing status.
• Wi-Fi Indicator: Shows Wi-Fi connection status.
• Remote Control Indicator: Shows remote control connection status.
• Charging Setting: Indicates charging mode.
• EV X-Stream Charging Indicator: Shows EV charging status.
• Battery Percentage: Displays remaining battery charge.
• Remaining Time: Shows estimated time until charging or discharging is complete.
• Low Temp Warning: Indicates low battery temperature.
• High Temp Warning: Indicates high battery temperature.
• Smart Home Panel Indicator: For smart home integration.
• Extra Battery Indicator: Shows connection status of an extra battery.
• Smart Generator Indicator: Shows status of a connected smart generator.
• Fan Indicator: Shows fan operation status.
• Input Display: Shows power input wattage.
• Output Display: Shows power output wattage.
• Battery Pack Failure: Indicates a battery pack issue.
• Error Code: Displays error codes. Refer to the EcoFlow app for details.
• CO Alert: Indicates detection of carbon monoxide. The Smart Generator will stop automatically.
• Solar Panel Indicator: Shows solar charging status.
• Overload Warning: Indicates overload condition.
• Double Power Indicator: Indicates dual power mode.
• AC Output: Shows AC output status.
• DC Output: Shows DC output status.
• USB-A Output: Shows USB-A output status.
• USB-C Output: Shows USB-C output status.

Battery Level Indicator: During charging, the indicator rotates clockwise. When the battery level reaches 0%, the indicator blinks.

Wi-Fi Indicator: Pressing the IOT button for 3 seconds makes the Wi-Fi indicator blink, indicating readiness for pairing with the EcoFlow app. Pairing can be done directly or via a Wi-Fi router. Direct connection keeps the icon blinking; router connection lights it up.

Error Codes: For details on error codes, refer to the EcoFlow app.

Carbon Monoxide Alert: If dangerous carbon monoxide levels are detected, the EcoFlow Smart Generator will stop automatically, and this alert will be displayed.

For details on display content and countermeasures during malfunctions, please refer to "5. Error Display and Countermeasures".

3.3 How to Use

Power ON/OFF and Display Control:

• Power ON/Display ON: Press the Main Power Button.
• Power OFF: Long press the Main Power Button.

Pressing the Main Power Button turns the product ON, and the display shows information. If the product is left idle for 5 minutes, the display enters sleep mode and turns off automatically. The display will automatically turn on when the product detects changes in load or operation. To switch the display ON/OFF, press the Main Power Button.

To turn off the product, long press the Main Power Button.

If no load is connected and no operation is performed for 2 hours, the product's main power will automatically turn OFF. The default product standby time is 2 hours. The standby time can be adjusted in the app.

Using 12V DC Output:

When the Main Power is ON, press the 12V DC Power Button to enable output. Press the 12V DC Power Button again to stop it. When the 12V DC power is ON, the product's main power will not turn off automatically.

Using AC Output:

When the Main Power is ON, press the AC Power Button to enable output. Press the AC Power Button again to stop it. If no load is connected for 12 hours, the AC power will automatically turn OFF. To prevent battery drain, turn OFF AC power when not in use.

Frequency Switching: With AC power OFF, long press the AC Power Button for 10 seconds to switch frequency. Frequency can also be switched via the app.

3.4 AC Charging

The product features X-Stream Fast Charging technology, with a maximum input power of 1500W. The X-Stream Charge/Custom Charge switch allows control over the input power. The default setting for Custom Charge is 400W, which can be changed via the EcoFlow app. If abnormal conditions such as AC input current exceeding 20A persist, the AC charging port's protection function will activate. When this happens, the button on the overload protection unit will pop out. After confirming there are no product malfunctions, press the button on the overload protection unit to resume charging as normal.

The charging input power can be adjusted using the fast charge/custom charge switch on the back of the product. When in Custom Charge mode, the charging input range can be changed via the EcoFlow app.

Use the included AC charging cable for AC charging. Do not use other charging cables. The AC charging cable must be plugged directly into a 15A or higher outlet. In other cases, use the X-Stream Charge/Custom Charge switch to adjust the charging speed. EcoFlow is not responsible for damage caused by not following these instructions or using non-included charging cables.

3.5 Solar Charger Charging

The product can be charged by connecting solar chargers in series, as shown in the diagram.

Diagram Description: Shows solar panels connected in series via MC4 connectors to a solar charging cable, which then connects to the DELTA Pro's solar input port.

Note: The solar charging cable (MC4-XT60 adapter cable) is sold separately.

When using an EcoFlow solar charger to charge the product, connect it according to the connection example above. To prevent damage to the product, confirm that the solar charger's output voltage is within 150V before connecting.

3.6 Car Socket Charging

The product can be charged using a car's cigarette socket. The product supports charging via 12V and 24V car sockets, with a default current of 8A.

To ensure proper startup, start the car engine before charging via the car socket, as the car battery voltage may be insufficient. Also, ensure the car socket charging cable is securely connected to the car's cigarette socket. EcoFlow is not responsible for damage caused by incorrect operation.

Diagram Description: Shows a car charger cable connecting from a car's cigarette socket to the DELTA Pro's car socket input port.

3.7 Extra Battery Usage

The DELTA Pro can be connected to up to two dedicated Extra Batteries to increase battery capacity.

For connection details, refer to the user manuals for the EcoFlow DELTA Pro Extra Battery and EcoFlow Smart Generator.

Precautions for Connecting Extra Batteries:

1. Before connecting the DELTA Pro to an Extra Battery, ensure both the main unit and the Extra Battery are turned OFF.
2. After connecting the Extra Battery, check that the Extra Battery indicator is displayed on the LCD panels of both the main unit and the Extra Battery before use.
3. Do not directly connect or move the Extra Battery during charging or discharging. If you need to connect or move it, turn OFF the main unit first.
4. Do not touch the metal terminals of the Extra Battery with your hands or other objects. If there is any foreign matter, wipe it with a dry cloth or a well-wrung cloth.

3.8 App Usage

The EcoFlow app allows you to control the product and check related information.

For EcoFlow app download and more information, please visit the official EcoFlow website.

QR Code Description: A QR code is displayed for downloading the EcoFlow app.

3.9 X-Boost Function

The X-Boost technology allows the operation of electrical appliances with a rated output of up to 3750W.

If the X-Boost function is enabled and the total output is below 3000W, electrical appliances will operate at standard voltage.

If the X-Boost function is enabled and the total output exceeds 3000W, the operating voltage of electrical appliances will be lowered to keep the output within 3000W, allowing the appliances to operate.

Notes on X-Boost Function Usage:

1. The X-Boost function is enabled by default from the factory. You can switch this function ON/OFF via the EcoFlow app.
2. X-Boost cannot be used when it is not enabled or when performing AC output in charging mode.
3. X-Boost may not be usable with some precision instruments or appliances with voltage protection circuits. Please check compatibility before use.

For appliances compatible with the X-Boost function, please check carefully before use.

3.10 EPS (Emergency Power Supply) Function

This product supports the EPS function. By connecting the AC charging cable to a household outlet and the product's AC power input port, you can use electrical appliances (power is supplied from the household outlet, not the battery). If the power supply from the household outlet is interrupted in this state, the product will automatically switch to supplying power directly from the battery within 30ms.

However, this function is not a full EPS function and does not support 0ms switching. Therefore, it should not be used for devices that require true 0ms switching, such as data servers or workstations. If you use the EPS function, please test it thoroughly and use it at your own risk. If multiple devices are connected simultaneously, the overload protection function may activate when switching from AC outlet to battery. Therefore, for primary use as an EPS, connecting only one device is recommended. EcoFlow is not liable for any issues such as devices not operating correctly or data loss due to incorrect usage.

Diagram Description: Shows a connection setup for EPS, illustrating the AC input from a wall outlet to the DELTA Pro, and then output to an appliance.

4. FAQ

1. What type of battery is used in this product?
   This product uses high-quality Lithium Iron Phosphate (LiFePO4) batteries.
2. What devices can be connected to the AC output port of this product?
   The AC output port of this product has a rated output of 3000W and a surge output of 6000W, making it compatible with most household electrical appliances. Before use, please check the power consumption of the electrical appliance and confirm that the power consumption of all connected devices is within the rated power capacity.
3. How can I check the remaining usage time for connected electrical appliances?
   While an electrical appliance is in use, the product's display shows the estimated time until the power supply is depleted. For appliances with stable power consumption, this displayed time can be used as a reference.
4. How can I tell if it is charging?
   When charging, the display shows the estimated time until charging is complete, the indicator around the battery percentage rotates clockwise, and the input power is also displayed.
5. How should I clean the product?
   Wipe clean with a soft, dry cloth.
6. How should I store the product?
   When storing the product, ensure the main power is OFF. Store in a dry, well-ventilated place, and avoid high temperature and humidity. If the product will not be used for a long period, it is recommended to discharge the battery to 30% and recharge it to 60% every three months to prolong its lifespan.
7. Can I carry this product on an airplane?
   No, this product cannot be carried on an airplane.

5. Error Display and Countermeasures

If a warning notification is displayed during product use, please restart the product. If the warning icon still appears after restarting, stop using the product immediately (do not charge or discharge). If the problem persists after following the above steps, please contact EcoFlow After-Sales Support.

6. Included Items

The package includes the following items:

• DELTA Pro Portable Power Station
• AC Charging Cable
• Car Charger Cable
• DC5521-DC5525 Cable
• Handle Cover
• User Manual & Warranty

Diagram Description: Images of the DELTA Pro unit and its accessories (AC cable, car charger cable, DC cables, handle cover, manual).

7. Maintenance and Care

1. It is recommended to use and store the product in an environment of 20°C to 30°C. Also, keep it away from water sources, heat sources, and metal objects.
2. For long-term storage, it is recommended to discharge and recharge the battery every three months (discharge to 30% and recharge to 60%).
3. For safety, do not store the product at temperatures above 45°C or below -10°C.
4. To prolong battery life, it is recommended to use the product in an environment of 20°C to 30°C.
5. If the battery level drops below 1% after use, recharge it to 60% before storing. If the battery is stored for a long time with a significantly low charge, it may cause irreparable damage to the battery, leading to a reduced product lifespan.
6. If the battery is stored for a long time with a significantly low charge, the product will enter deep sleep mode. You will need to charge the product to exit deep sleep mode before using it again.