ECOFLOW 220W Bifacial Portable Solar Panel Instruction Manual

: June 22, 2024
: ECOFLOW

Table of Contents

ECOFLOW 220W Bifacial Portable Solar Panel
Product Information
Product Usage Instructions
In the Box
How It Works
Harvesting Energy Even More Quickly
FAQ
Technical Specifications
CONTACT
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

ECOFLOW 220W Bifacial Portable Solar Panel

Product Information

Protective Case (Kickstand)
Bifacial Solar Panel
Snap Hook x 4
User Manual and Warranty Card
Solar Charging Cable
Photovoltaic connectors (adaptable to MC4 connectors)

When using this product, ensure that the front side of the panel faces the sun for optimal power generation. The rear side can also generate electricity from ambient light, enhancing the overall power output. For best results, expose the rear side to more light. While electricity can be produced with the rear side facing the sun, it generates only 80% power compared to the front side.

Product Usage Instructions

Adjust the angle of the solar panel to face the sun for efficient charging.
Use the kickstand feature before 10:00 am or after 2:00 pm; during midday, lay the solar panel flat on the ground.
Connect the solar panel to energy storage using the provided adaptor cable.
Avoid using the adaptor cable for interconnecting solar panels or other purposes.

Harvesting Energy Even More Quickly

Refer to the manual for information on connecting multiple panels in series based on supported products.

Things to Remember When Using Your Bifacial Solar Panel

Efficiency depends on light intensity and tilt angle; factors like weather and location affect charging power.
The main body is waterproof, but the junction box and connection points should not be immersed in water.
Avoid contact with corrosive substances or liquids.
Avoid sharp objects, impacts, and pressure on the panel to prevent damage.
Handle with care during transport, storage, and installation to prevent damage.
Store the panel vertically and protect terminals from sunlight when not in use.
Only qualified personnel should open or disassemble the product.

This marking indicates that this product should not be disposed of with other household waste within the EU. Recycle this product properly to prevent possible damage to the environment or a risk to human health via uncontrolled waste disposal and to promote the sustainable reuse of material resources. Please return your used product to an appropriate collection point or contact the retailer where you purchased this product. Your retailer will accept used products and return them to an environmentally sound recycling facility.

In the Box

How It Works

When using this product, please ensure that the front side of the panel is facing the sun.
The rear side of the panel is capable of generating electricity from ambient light, boosting the power output of the product. The more light the rear side of the panel is exposed to, the better the results.
If necessary, electricity can also be generated with the rear side of the panel facing the sun. However, this only generates 80% as much power as using the front side of the panel.
This cable can only be used for connection between solar panels and energy storage.
It is prohibited to be used for interconnection between solar panels or other connection purposes.
To harvest solar energy most efficiently, try to ensure that the sun’s rays hit the panel ±10° is acceptable and that the panel is not shaded.

Adjust the angle by shooting

For improved charging results, the Protective Case can also be used as a kickstand to prop up the solar panel at a 30°–80° angle.
The kickstand feature should only be used before 10:00 am or after 2:00 pm. To use the product during the midday sun, simply place the solar panel flat on the ground.

Harvesting Energy Even More Quickly

(See image below)

Max. No. Of Panels Connected in Series to Supported Products

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

Things to Remember When Using Your Bifacial Solar Pane

As the efficiency of solar panels depends upon the light intensity and the tilt angle used, the charging power of the panel may be affected by several factors such as weather conditions, seasonal changes, and location. The installation and connection of this product should be carried out strictly under the instructions found in the User Manual.
Only the main body of this product is waterproof. The junction box and connection points should not be immersed in water for extended periods.
This product must not come into contact with highly corrosive substances, or be immersed in corrosive liquids.
To avoid damaging the product, do not use sharp objects on the surface of the panel, and do not knock or impact the product.
Do not apply pressure to the panel or allow the panel to be dropped on any of its corners, sides or faces.
Such actions may result in damage to the solar panel.
The panel must not be knocked, exposed to heavy pressure, or bent during transport, rotation, or installation. We recommend that the panel is kept in a vertical position when being moved or stored.
When storing the panel, always ensure that the positive and negative terminals of the junction box are not exposed to sunlight.
To avoid the risk of injury, this product and its junction box must only be opened or disassembled by qualified personnel.
Unwanted solar panels must be disposed of under the local legal requirements.
When using the product, please follow the instructions and prohibit hanging.

What Not to Do

This Solar Panel contains glass inside. Behaviors above that damage the solar panel will cause the glass inside the solar panel to crack and efficiency to drop, or even unusable.
The free warranty period does not cover damage resulting from improper use of the product.

FAQ

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

In most cases, it is normal for a solar panel not to deliver its full nominal power. Some of the easons why this happens, as well as some suggestions for getting closer to the nominal power figure, are given below. 1. Light Intensity. The amount of light shining on the panel will result in fluctuations to the power output. You are more likely to achieve nominal power output figures closer to those obtained under test conditions when using the product on a clear day during the midday sun, than when using the product in the morning or later in the afternoon. Weather conditions will also affect the amount of sunlight that shines on the panel. For example, you are much less likely to achieve the figures for nominal power in hazy, cloudy or rainy conditions. 2. Surface Temperature. The temperature of the solar panel surface will also affect the amount of power generated. The lower the surface emperature of the panel, the more power will be produced. For example, solar panels generate more power when used during the winter than during the summer, and this is completely normal. Solar panels generally reach emperatures close to 60°C (140°F) during summer. This reduces nominal power by 13%, despite the higher levels of light shining on the panel. 3. Sunlight Angle. In optimal light conditions, the sun’s rays should remain perpendicular to the surface of the panel for best performance. Power output is only marginally impacted by sunlight hitting the panel within 10° either side this 90° angle. 4. Panel Shading. The surface of the solar panel should not be shaded during use. Shading caused by shadows, foreign objects and glass can all greatly reduce power output. erformance Issues Caused by Malfunctioning Panels: If the panel still isn’t generating power or its output remains far below expected nominal power figures after addressing the issues above, there may be an issue with the panel itself. Please contact Customer Support for assistance.

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

This depends first and foremost on weather conditions. Generally speaking, on a clear day with no clouds in the sky, sunlight hitting the panel at a 90° angle usually generates 160W–180W of power in the 220W panel. (Current light conditions are normally 800W–900W/m² (74.3W–83.6W/ft²) with a panel temperature of 50°C (122°F) under test conditions. Nominal power ratings are based on 1000W/m² (92.9W/ft²) in AM1.5 conditions with a panel temperature of 25°C (77°F) under test conditions. Power output figures close nominal values were normally observed in the midday sun during the winter.)

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

The operating temperature of the Bifacial Solar Panel is -20°C–85°C (-4°F–185°F). The panel should be folded into its original shape and stored in its Protective Case (Kickstand), which provides sufficient protection for the product. To extend the service life of the panel, ensure that the product is not exposed to external forces/impacts when not in use. The solar panel itself is made of glass and must not be dropped, pierced, bent, or sat on. These actions may break the glass and render the panel unusable. Any such damage will not be covered by the free warranty

The 220W Bifacial Solar Panel has two sides. 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 Bifacial Solar Panel has a junction box. This side of the panel generates power by being positioned perpendicular to the sun’s rays. Since the rear side of the panel faces away from the sun, it does not generate electricity in the usual way. Generally speaking, the rear of the panel uses ambient light to increase the overall performance of the product by up to 5%-25%. This figure is higher if mirrors are used, or when ambient light levels are high. Using the product with the rear side of the panel facing the sun generates 80% of the power when compared to using the front side. Using the panel in this way does not have a negative effect on the product.

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

Yes, but only certain types. The power station used must be compatible with MC4 standards in order to work properly. In addition, other brands of power station may not offer the same levels of compatibility as EcoFlow-branded power stations, may have lower nominal power ratings, and may not offer the same levels of erformance.

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

Yes, but this is not recommended. While the voltages of the two panels are identical, the current ratings are not. This means that when the panels are connected in series, the current will be limited to that of the 110W panel and the full performance potential of the 220W panel cannot be released, resulting in a 1+2<3 scenario. Please purchase panels of the same size if you intend to connect multiple panels in series.

Can I connect 220W Bifacial Solar Panel in parallel?

Yes, but this is not recommended. 220W solar panel have a maximum current rating of 12A. Though these panels can be connected in parallel, DELTA and RIVER series power stations only support a maximum current of 12A. Parallel connections increase power output by doubling the current, but connecting the panels in this way would result in a 1+1=1 scenario whereby the current is limited to 12A by the connected devices. We do not recommend connecting the panels in parallel, unless you use a different brand of power station with an input current of 20A or above.

Technical Specifications

220W Bifacial Solar Panel

Rated Power: 220W (+/-5W) Front Side / 155W(+/-5W) Rear Side
Open Circuit Voltage: 21.8V (Vmp 18.4V)
Short Circuit Current: 13A (Imp 12.0A) Front Side / 8.8A(Imp 8.4A) Rear Side
Bifaciality Coefficients: 70%±10%
Efficiency: 22%–23%
Cell Type: Monocrystalline Silicon

General

Solar Panel Weight: Approx. 9.5kg (20.9lbs)
Unfolded Dimensions: 82.0183.52.5cm (32.372.21.0in)
Folded Dimensions: 82.050.03.2cm (32.319.71.3in)
Warranty Period: 12 Months

Testing and Certification

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

Temperature Coefficient Specifications

TKPower -(0.39+/-0.02)%/k
TKVoltage -(0.33+/-0.03)%/k
TKCurrent +(0.06+/-0.015)%/k

Hereby, EcoFlow Inc. declares that the equipment type solar panel complies with Directives 2014/30/EU, 2011/65/EU(RoHS), (EU) 2015/863(RoHs). The full text of the EU Declaration of Conformity is available at the following Internet address: