EcoFlow 220W Bifacial Solar Panel

In the Box

The package includes:

• Protective Case (Kickstand)
• Bifacial Solar Panel
• Snap Hooks (x4)
• User Manual and Warranty Card
• MC4 Output Controller

How It Works

Ensure the front side of the panel faces the sun ☀️ for optimal performance. The rear side can generate electricity from ambient light ?, boosting the product's power output. The more light the rear side receives, the better the results. If necessary, the rear side can face the sun, generating approximately 80% of the power compared to the front side.

Setup Steps:

1. Positioning: Set up the panel with the front side facing the sun. The rear side is designed to capture ambient light.
2. Unfolding and Angling: Unfold the panel and use the kickstand legs to prop it up.
3. Connecting: Connect the MC4 Output Controller to the panel's junction box. A close-up illustration shows the MC4 cable being securely plugged into the panel's port.
4. Connecting to Power Station: Connect the MC4 Output Controller to your EcoFlow power station. The diagram shows the solar panel angled towards the sun ☀️, connected to the controller, which is then connected to the power station.
5. Optimal Angle: For maximum solar energy harvesting, aim for the sun's rays to hit the panel at a 90° angle (±10° is acceptable). Ensure the panel is not shaded.
6. Adjusting Kickstand Angle: The Protective Case can be used as a kickstand to prop up the solar panel at angles between 30° and 80° for improved charging results. Adjust the angle using the case's zipper mechanism.
7. Kickstand Usage Timing: The kickstand feature is recommended for use before 10:00 AM or after 2:00 PM. During midday sun, place the solar panel flat on the ground for best results.

Harvesting Energy Even More Quickly

The following table shows the maximum number of panels that can be connected in series to various EcoFlow portable power stations:

Note: Please refer to relevant User Manuals for the number of solar panels that may be attached to other products.

A diagram illustrates the series connection of multiple solar panels leading to a single output.

Things to Remember When Using Your Bifacial Solar Panel

• Panel efficiency depends on light intensity, tilt angle, weather, season, and location. Follow the User Manual for installation and connection.
• Only the main body is waterproof. Avoid immersing the junction box and connection points in water.
• Avoid contact with corrosive substances or liquids.
• Do not use sharp objects, knock, or impact the panel to prevent damage.
• Do not apply pressure or drop the panel on its corners, sides, or faces, as this may cause damage.
• Avoid knocking, heavy pressure, or bending during transport or installation. Store vertically.
• When storing, ensure the junction box terminals are not exposed to sunlight.
• Only qualified personnel should open or disassemble the product.
• Dispose of unwanted solar panels according to local legal requirements.

What Not to Do

Behaviors that damage the solar panel can cause the internal glass to crack, leading to reduced efficiency or making the panel unusable. The warranty does not cover damage from improper use.

• ❌ Do not bend or impact the solar panel.
• ❌ Do not drop the solar panel on its edge.
• ❌ Do not step on or apply pressure to the solar panel.

Q&A

Does the 220W Bifacial Solar Panel generate a full 220W of power?

It is normal for a solar panel not to deliver its full nominal power. Factors affecting output include:

• Light Intensity: Output fluctuates with light levels. Midday sun on a clear day yields closer to nominal power than morning or afternoon. Weather conditions (hazy, cloudy, rainy) significantly reduce output.
• Surface Temperature: Lower temperatures produce more power. Panels can reach 60°C (140°F) in summer, reducing nominal power by up to 13% despite higher light levels.
• Sunlight Angle: Optimal performance is achieved when sun rays are perpendicular (90°) to the panel surface. Output is only marginally affected by angles within ±10° of 90°.
• Panel Shading: Shading from shadows, objects, or glass greatly reduces power output.

If output remains significantly below expected figures after addressing these points, contact Customer Support.

How much power can the 220W Bifacial Solar Panel generate under normal conditions?

Under clear sky conditions with sunlight hitting at a 90° angle, the panel typically generates 160W-180W. Standard test conditions are 1000W/m² (AM1.5) at 25°C, while typical conditions might be 800-900W/m² at 50°C panel temperature. Winter midday sun often yields output closer to nominal values.

What should I know about the operating temperature, storage, and use of the 220W Bifacial Solar Panel?

• Operating Temperature: -20°C to 85°C (-4°F to 185°F).
• Storage: Fold the panel into its original shape and store it in its Protective Case for protection. Avoid external forces or impacts when not in use.
• Handling: The panel is made of glass. Do not drop, pierce, bend, or sit on it, as this can break the glass and render it unusable. Such damage is not covered by the warranty.

How can I tell which side is which, and how can I optimize power generation using the rear side of the panel?

The front side of the panel has a junction box. Position this side perpendicular to the sun's rays for primary power generation. The rear side typically uses ambient light ? for a performance boost of 5%-25% (higher with mirrors or strong ambient light). Using the rear side facing the sun yields about 80% of the front side's power, with no negative effect on the product.

Can I use non-EcoFlow branded power stations with the 220W Bifacial Solar Panel?

Yes, provided the power station is compatible with MC4 standards. However, other brands may offer lower compatibility, nominal power ratings, or overall performance compared to EcoFlow products.

Can I connect both 110W and 220W Bifacial Solar Panels together in series?

This is not recommended. While voltages are identical, current ratings differ. In series, the current is limited by the 110W panel, preventing the 220W panel from reaching its full potential (resulting in a 1+2<3 scenario). Use panels of the same specifications for series connections.

Can I connect 220W Bifacial Solar Panels in parallel?

This is not recommended. The 220W panel has a maximum current rating of 12A. While parallel connections increase power output, DELTA and RIVER series power stations support a maximum of 12A. Connecting in parallel would limit the current to 12A by the connected devices (a 1+1=1 scenario). This is only advisable if using a power station with an input current of 20A or above.

Technical Specifications

*Standard Test Conditions: 1000W/m² (92.9W/ft²), AM1.5, 25°C (77°F)

Temperature Coefficient Specifications

Contact Us

For inquiries, please visit: www.ecoflow.com ?