Gabatarwa
Thank you for choosing the MARBERO 21W Portable Foldable Solar Panel. This device is designed to provide reliable power for your electronic devices during outdoor activities, travel, and emergencies. Its compact, lightweight, and durable design ensures convenience and efficiency. Please read this manual thoroughly before use to ensure proper operation and longevity of your solar panel.

Image: The MARBERO 21W Portable Foldable Solar Panel in its unfolded state, showcasing the solar cells designed to capture sunlight.
Abubuwan Kunshin
Upon opening your MARBERO 21W Portable Foldable Solar Panel package, you should find the following items:
- 1x MARBERO Foldable Solar Panel 21W
- 1x DC 5521 Cable
- 3x Interchangeable DC Adapters
- 1 x Manual mai amfani
- 2x Carabiners
Saita da Connection
Follow these steps to set up and connect your solar panel for charging:
- Buɗe Faifan Hasken Rana: Carefully unfold the MARBERO 21W solar panel and lay it flat in an area with direct sunlight.
- Matsayi don Mafi kyawun Hasken Rana: For best efficiency, position the solar panel at an optimal tilt angle (typically 35 to 65 degrees) towards the sun. Avoid shaded areas.
- Haɗa Cable DC: Plug the DC 5521 cable into the DC output port on the solar panel's control box.
- Choose DC Adapter (if needed): If your device requires a specific DC adapter, select the appropriate interchangeable DC adapter and connect it to the DC 5521 cable.
- Haɗa zuwa Na'urar ku: Plug the other end of the DC cable (or the chosen DC adapter) into your portable power station or other compatible device. For USB charging, directly plug your device's USB cable into the USB-A output port on the solar panel.
- Fara Caji: Once connected, your device should begin charging. The solar panel features a built-in smart chip that intelligently detects your device to maximize charging speed.

Image: A visual guide demonstrating the connection process: 1. Plug DC cable into solar panel. 2. Choose suitable DC adapter. 3. Connect to your device. 4. Device will begin charging.

Image: Detail of the solar panel's output interface, showing the USB-A (5V/2.4A) and DC (18V/1.1A) ports for connecting various devices.
Umarnin Aiki
The MARBERO 21W solar panel is designed for user-friendly operation. Here are some key points for optimal performance:
- Bayyanar Hasken Rana: Ensure the solar panel receives maximum direct sunlight. Any clouds, suboptimal angles, or obstructions will affect the real output.
- Cloudy Day Performance: The panel maintains high efficiency even on cloudy days, providing 12W–16W of power. Under full sunlight, it generates 18W–21W.
- Cajin Wayo: The built-in smart chip protects your devices from overcharging and overloading, ensuring safe and efficient power delivery.
- Ayyukan Sake farawa ta atomatik: The solar panel can restart to charge your devices after high temperature conditions, enhancing convenience and security.
- Dacewar Na'urar: Use the USB-A and DC ports to charge smartphones, tablets, power banks, speakers, and portable power stations. Note that this portable solar charger cannot store electricity and cannot charge laptops and power stations directly without a compatible power station.

Image: The solar panel deployed in an outdoor setting, connected to a portable power station, illustrating its use for charging devices during camping ko wasu ayyukan waje.
Mabuɗin Siffofin
The MARBERO 21W Portable Foldable Solar Panel offers several features designed for convenience and performance:
- High Solar Conversion: Equipped with high-efficiency solar arrays, offering a conversion rate of up to 23% for faster charging.
- Durable & Versatile Design: Crafted from high-quality, durable Oxford cloth with IP65 waterproofing, dust resistance, and high-temperature durability.
- Mai šaukuwa & Mai nauyi: With a folded size of 11.4" x 6.3" x 1.3" and weighing just 1.32 lbs, it's easy to carry and fits into most backpacks.
- Attachment Holes: Designed with 4 attachment holes and includes carabiners for convenient hanging.
- Kariyar Tsaro: Features over-temperature protection, low-voltage protection, short-circuit protection, and an auto-restart function.

Hoto: Fashewa view diagram showing the layers of the solar panel, emphasizing its 23% efficiency and protective features like dust-proof, abrasion resistance, and waterproofing.

Image: The solar panel's dimensions in both folded and unfolded states, demonstrating its compact nature and ease of storage or transport in a bag.

Image: A person hiking with the solar panel attached to their backpack, highlighting the included carabiners and the panel's suitability for on-the-go power during outdoor adventures.
Ƙayyadaddun bayanai
| Ƙayyadaddun bayanai | Daki-daki |
|---|---|
| Samfura | ET-21W |
| Watatage | 21W |
| Adadin Juyawa | Har zuwa 23% |
| Girman Ninke | 11.4'' x 6.3'' x 1.3'' (29cm x 16cm x 3.3cm) |
| Girman Buɗewa | 26.8'' x 11.4'' x 1.4'' (68cm x 29cm x 3.5cm) |
| Nauyi | 1.32 lbs (0.6 kg) |
| USB A fitarwa | 5V / 2.4A |
| Fitowar DC | 18V / 1.1A |
| Kayan abu | Monocrystalline Silicon & Waterproof Oxford Fabric |
| Kimar hana ruwa | IP65 |
| Yanayin Aiki | -10 ~ 70 ℃ / 14 ~ 158 ℉ |
| Abubuwan da aka haɗa | 2 Carabiners, 3 Interchangeable DC Adapters, Bag, DC 5521 Cable, User Manual |
Kulawa
To ensure the longevity and optimal performance of your MARBERO 21W Portable Foldable Solar Panel, please follow these maintenance guidelines:
- Tsaftacewa: Regularly wipe the solar panels with a soft, damp cloth to remove dust, dirt, or debris that may accumulate and reduce efficiency. Do not use harsh chemicals or abrasive materials.
- Ajiya: Idan ba a amfani da shi, a naɗe na'urar hasken rana a ajiye a wuri mai sanyi da bushewa, nesa da hasken rana kai tsaye da kuma yanayin zafi mai tsanani.
- Dubawa: Periodically inspect the cables, connectors, and the panel's fabric for any signs of wear, damage, or corrosion. Ensure all connections are secure before use.
- Guji Nitsewa: While the panel is IP65 waterproof, it is designed to withstand splashes and light rain, not submersion in water.
Shirya matsala
If you encounter any issues with your solar panel, please refer to the following common troubleshooting tips:
- No Charging Output:
- Ensure the solar panel is in direct sunlight and not shaded.
- Check all cable connections to ensure they are secure and correctly inserted.
- Verify that your device is compatible with the output specifications (5V/2.4A for USB-A, 18V/1.1A for DC).
- Test with a different device or cable to rule out device/cable issues.
- Low Charging Speed:
- Adjust the panel's angle to face the sun directly for maximum exposure.
- Clean the solar panel surface to remove any dirt or dust.
- Cloudy or overcast weather will naturally reduce charging efficiency.
- Ensure the ambient temperature is within the operational range (-10~70℃).
- Zazzafar Panel:
- The panel has over-temperature protection and an auto-restart function. If it overheats, it may temporarily stop charging and resume once cooled.
- Ensure adequate airflow around the panel.
If these steps do not resolve the issue, please contact MARBERO customer service for further assistance.
Garanti da Taimako
MARBERO offers a Garanti na watanni 12 for your 21W Portable Foldable Solar Panel from the date of purchase. This warranty covers manufacturing defects and issues arising from normal use.
For any product-related problems, technical support, or warranty claims, please do not hesitate to contact our customer service team. We are available Kwanaki 7 a mako, awanni 24 a rana don taimaka muku.
You can reach us via Amazon message or through the contact information provided in your product packaging. Please have your purchase details and model number (ET-21W) ready when contacting support.