1. Introduction
This manual provides essential instructions for the safe and efficient operation of your EF ECOFLOW DELTA 3 Classic Portable Power Station and 220W Solar Panel. Please read this manual thoroughly before using the product to ensure proper functionality and to prevent damage.
2. Safety Instructions
- Do not disassemble, repair, or modify the product.
- Keep the product away from heat sources, direct sunlight, and flammable materials.
- Avoid contact with water or other liquids. Do not operate in rain or wet conditions.
- Ensure proper ventilation during use and charging to prevent overheating.
- Use only original or certified accessories.
- Keep out of reach of children and pets.
- In case of fire, use a dry powder fire extinguisher.
3. Package Contents
The EF ECOFLOW DELTA 3 Classic Solar Generator package includes the following items:
- DELTA 3 Classic Portable Power Station
- 220W Solar Panel
- User Manual (this document)
- AC Charging Cable
- Car Charging Cable
- Solar Charging Cable
Note: The DELTA 3 Classic Solar Generator and 220W Solar Panel may arrive separately. Please await the arrival of all components before use.
4. Product Overview
The EF ECOFLOW DELTA 3 Classic is a portable power station designed to provide reliable power for various applications, from home backup to outdoor adventures. It features a 1024Wh LiFePO4 battery, 1800W AC output (3600W surge with X-Boost), and multiple charging options.
Image: The EF ECOFLOW DELTA 3 Classic Portable Power Station shown with two 220W solar panels in the background.
4.1 Main Unit Features
- Display Screen: Shows battery level, input/output wattage, remaining runtime, and error indicators.
- AC Output Ports: Three 1800W (3600W surge) AC outlets for standard appliances.
- USB-C Ports: One 100W Max and one 30W Max USB-C output for fast charging compatible devices.
- USB-A Port: One 18W Max USB-A output.
- DC Output: Car power outlet and DC5521 output ports.
- Input Ports: AC charging, Solar charging, Car charging.
Image: A close-up view of the DELTA 3 Classic's front panel, highlighting the three AC outlets, two USB-C ports (100W and 30W), and one USB-A port (18W).
4.2 220W Solar Panel Features
- High Efficiency: Up to 25% energy conversion rate with N-Type solar cells.
- Bifacial Design: Captures sunlight from both sides for increased power generation.
- Durable and Portable: Designed for outdoor use with a foldable, compact form factor.
5. Setup
5.1 Initial Charging
Before first use, it is recommended to fully charge your DELTA 3 Classic. Connect the AC charging cable to a wall outlet and to the AC input port on the power station. The display will indicate charging status.
5.2 Connecting the 220W Solar Panel
- Unfold the 220W solar panel and position it in direct sunlight.
- Connect the solar charging cable to the solar panel's output port.
- Connect the other end of the solar charging cable to the solar input port on the DELTA 3 Classic.
- Ensure the connections are secure. The display will show the solar input wattage.
Image: The DELTA 3 Classic power station is shown outdoors, connected to multiple solar panels for charging.
6. Operation
6.1 Powering On/Off
Press and hold the main power button to turn the DELTA 3 Classic on or off. The display screen will illuminate upon activation.
6.2 Using Output Ports
- AC Outlets: Press the AC ON/OFF button to activate the AC output. Plug in your devices.
- USB Ports: USB outputs are typically active when the unit is on. Connect your USB devices directly.
- DC Outlets: Press the DC ON/OFF button to activate the DC output. Plug in your 12V devices.
6.3 X-Boost Feature
The X-Boost feature allows the DELTA 3 Classic to power appliances requiring up to 3600W, even though its rated output is 1800W. This is achieved by reducing the voltage and current, making it suitable for most heating appliances. This feature is automatically enabled when the output exceeds 1800W.
Image: The DELTA 3 Classic is shown powering a PC, projector, camping light, and microwave, demonstrating its 1800W AC output and 3600W surge capability.
6.4 Uninterrupted Power Supply (UPS)
When connected to an AC wall outlet, the DELTA 3 Classic can function as an Uninterrupted Power Supply (UPS). In the event of a power outage, it automatically switches to battery power in less than 10 milliseconds, ensuring continuous operation for connected devices like computers, servers, or medical equipment.
Image: A person is working on a computer during a power outage, with the DELTA 3 Classic providing backup power, illustrating its <10ms UPS feature.
6.5 EcoFlow App Control
Download the EcoFlow app to monitor and control your DELTA 3 Classic remotely via Wi-Fi or Bluetooth. The app provides real-time data on power consumption, charging status, and allows for customization of settings.
Image: A smartphone screen shows the EcoFlow app, providing insights and control over the power station, including scheduled tasks and backup modes.
6.6 Quiet Operation
The DELTA 3 Classic is designed for quiet operation, especially when powering devices under 600W, maintaining noise levels as low as 30 dB. This makes it suitable for use in quiet environments like bedrooms or offices.
Image: The DELTA 3 Classic is shown operating quietly next to a bed, illustrating its 30 dB whisper-quiet operation when under 600W load.
7. Charging
7.1 AC Charging (X-Stream Fast Charging)
The DELTA 3 Classic features X-Stream technology for ultra-fast AC charging. It can charge from 0% to 80% in approximately 45 minutes and to 100% in about 60 minutes.
Image: The DELTA 3 Classic is plugged into a wall outlet, demonstrating its fast AC recharging capability, reaching 80% in 45 minutes.
7.2 Solar Charging
Utilize the included 220W solar panel for clean, renewable energy charging. The charging time will vary based on sunlight intensity and panel orientation.
- With 1x 220W Solar Panel: Approximately 5.8 hours for a full charge.
- With 2x 220W Solar Panels: Approximately 2.9 hours for a full charge.
- With 1x 400W Solar Panel: Approximately 3.2 hours for a full charge.
- With 500W MAX solar input: Approximately 2.5 hours for a full charge.
7.3 Car Charging
The DELTA 3 Classic can be charged using a car charger. Connect the car charging cable to your vehicle's 12V cigarette lighter port and to the car charging input on the power station. An optional EcoFlow 500W Alternator Charger can achieve 0-80% in 1.8 hours.
7.4 Generator Charging
The unit is compatible with generators for charging. Refer to your generator's manual for proper connection and safety guidelines.
8. Maintenance
8.1 Battery Care
The DELTA 3 Classic uses LiFePO4 battery cells, known for their longevity and safety. These batteries are rated for over 3500 cycles to 80% capacity and 6500 cycles to 50% capacity, providing over 10 years of daily use.
- Avoid completely draining the battery for extended periods.
- For long-term storage, charge the unit to 30-50% and store in a cool, dry place. Recharge every 3-6 months.
8.2 Cleaning
Wipe the exterior of the power station with a soft, dry cloth. Do not use harsh chemicals or abrasive materials. Ensure all ports are free of dust and debris.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on | Battery is depleted; Power button not pressed correctly | Charge the unit; Press and hold the power button for 3 seconds |
| AC output not working | AC output not enabled; Overload; Overheating | Press AC ON/OFF button; Reduce load; Allow unit to cool down |
| Solar charging not working | Insufficient sunlight; Incorrect connection; Damaged panel/cable | Relocate panel to direct sunlight; Check cable connections; Inspect panel/cable for damage |
| Unusual noise or smell | Internal fault; Overheating | Immediately power off the unit and contact customer support. |
10. Specifications
| Feature | Specification |
|---|---|
| Model Name | DELTA 3 Classic |
| Battery Capacity | 1024Wh |
| Battery Type | LiFePO4 |
| AC Output | 1800W (3600W Surge with X-Boost) |
| USB-C Output | 1x 100W Max, 1x 30W Max |
| USB-A Output | 1x 18W Max |
| AC Input | X-Stream Fast Charging (0-80% in 45 min) |
| Solar Input | 500W Max |
| Product Dimensions | 7.9"L x 11.1"W x 15.7"H |
| Weight | 42.1 Pounds |
| Operating Noise | 30 dB (under 600W) |
| UPS Function | <10ms Auto-Switch |
11. Warranty and Support
EF ECOFLOW products come with a manufacturer's warranty. For detailed warranty information, registration, or technical support, please visit the official EF ECOFLOW website or contact their customer service. Keep your purchase receipt as proof of purchase.
Video: An overview of the EF ECOFLOW DELTA 3 Classic Portable Power Station, demonstrating its features and use cases, including its UPS functionality during a power outage and fast charging capabilities.
