21 Watt Foldable Solar Panel

Features

  • Charges any small electronic device with USB-A or USB-C port
  • Can be paired with RYOBI 18V ONE+ power sources
  • Lightweight and portable design

Specifications

Output 1 USB-A Port & 1 USB-C Port
Watts 21
Warranty 3-Year Limited Warranty
Weight 1.5 lbs
Dimensions (Folded) 12.25" x 6.5"

The 21 Watt Foldable Solar Panel provides a means to power small electronic devices with USB-A or USB-C ports using solar energy. It can charge phones, tablets, power banks, and RYOBI 18V ONE+ batteries when used with a compatible power source. The panel is portable, lightweight, and measures 12.25”x 6.5” when folded.

Model Number: RYi20SP

Ryobi 21 Watt Foldable Solar Panel Review

4.7 out of 5

The Ryobi 21-Watt Foldable Solar Panel (Model RYi20SP) has quickly become one of my favorite tools for outdoor adventures and everyday use. This compact, portable solar panel is designed to charge small electronic devices with USB-A or USB-C ports, and it pairs seamlessly with RYOBI 18V ONE+ power sources. Its lightweight design and foldable nature make it an ideal companion for camping, hiking, beach trips, and even tailgating.

Design and Portability

One of the standout features of this solar panel is its design. When folded, it measures a mere 12.25” x 6.5”, roughly the size of a book, and weighs only 1.5 lbs. This makes it incredibly easy to pack and carry, whether you're slipping it into a backpack or a soft-sided tool case. The panel unfolds to reveal a durable, well-constructed array of solar cells that feel robust enough to withstand the rigors of outdoor use.

Performance

In terms of performance, the 21-watt output might seem like an unusual number, but it strikes a good balance between power and portability. During my testing, I found that it could charge my iPhone 14 from 11% to 87% in about two hours under direct sunlight. This makes it a reliable option for keeping your phone, tablet, or power bank charged while you're on the go.

One of the more impressive aspects of this solar panel is its ability to charge devices even in indirect sunlight. While direct sun will always yield the fastest charging times, I was pleasantly surprised at how well it performed on a partly cloudy day. It took about six hours to charge a 4ah battery using the Ryobi Inverter/Charger Model# RYi150CBT, which is quite reasonable given the conditions.

Versatility

The Ryobi 21-Watt Foldable Solar Panel is incredibly versatile. It comes equipped with both USB-A and USB-C ports, allowing you to charge a wide range of devices. Whether you need to power up your phone, tablet, or a Ryobi 18V ONE+ battery, this panel has you covered. The inclusion of convenient hanging hooks also adds to its versatility, making it easy to position the panel for optimal sun exposure as the day progresses.

Durability and Build Quality

Durability is always a concern with portable solar panels, but Ryobi has done an excellent job here. The panel feels well-made and sturdy, with high-quality materials that should stand up to regular use. The folding mechanism is smooth and secure, ensuring that the panel stays protected when not in use. The 3-year limited warranty also provides some peace of mind, should any issues arise.

Practical Considerations

While I have mostly positive things to say about this solar panel, there are a few practical considerations to keep in mind. First, the panel does not appear to have a blocking diode, which means it can discharge the battery if there isn't adequate sunlight. This is something to be aware of, especially if you plan to leave your devices connected for extended periods.

Additionally, while the panel is compact, some might find it a bit too large for certain activities like hiking. However, its ability to fit into a Ryobi soft-sided tool case makes it a convenient option for most other outdoor activities.

Conclusion

In summary, the Ryobi 21-Watt Foldable Solar Panel is a highly effective and versatile tool for anyone who spends time outdoors or needs a reliable way to charge small electronic devices on the go. Its compact, lightweight design makes it easy to carry, and its performance in both direct and indirect sunlight is impressive. The ability to charge a variety of devices through USB-A and USB-C ports adds to its versatility, and the durable build quality ensures it will stand up to regular use.

I would highly recommend this solar panel for anyone looking for a portable, efficient way to stay powered up while off the grid. Whether you're camping, hiking, at the beach, or tailgating, the Ryobi 21-Watt Foldable Solar Panel is a dependable and convenient option. Its minor drawbacks are easily outweighed by its numerous benefits, making it a valuable addition to any outdoor enthusiast's toolkit.


Project Ideas

Business

Mobile Device Charging Service

Set up a mobile charging station business at outdoor events, festivals, and parks using the foldable solar panel. Charge a small fee to allow people to charge their phones and other devices.


Eco-Friendly Gadget Rentals

Start a rental service for solar-powered gadgets, including the foldable solar panel, for campers and outdoor enthusiasts. Offer packages that cater to different needs, such as phone charging, lighting, and portable cooking.


Solar-Powered Product Line

Develop and sell a line of solar-powered products, such as solar backpacks, camping equipment, and emergency kits, incorporating the foldable solar panel. Market these products as eco-friendly and sustainable solutions.


Solar Charging Stations for Remote Work

Install solar charging stations in remote work locations, such as beachside cafes, parks, and coworking spaces. Offer subscriptions or pay-per-use models for remote workers and digital nomads who need reliable power sources.


Solar Workshop and Education

Conduct workshops and educational sessions on the benefits of solar energy and how to use solar panels effectively. Sell the foldable solar panels as part of the workshop kit, providing attendees with hands-on experience and immediate practical use.

Creative

Portable Solar Art Station

Create a mobile art station that uses the solar panel to power a tablet or laptop for digital drawing, along with a small LED light for nighttime work. This setup can be used for outdoor inspiration and on-the-go creativity.


Solar-Powered Emergency Kit

Design a compact emergency kit that includes the foldable solar panel to keep essential devices charged, such as a phone, flashlight, and a small radio. This kit would be perfect for outdoor enthusiasts or as a preparedness measure for natural disasters.


Solar-Powered Outdoor Speaker

Construct a solar-powered Bluetooth speaker system that utilizes the solar panel to keep the speaker charged during outdoor activities. This would be ideal for picnics, beach outings, and camping trips.


Solar Charging Station for Garden Tools

Create a dedicated solar charging station for cordless garden tools that use RYOBI 18V ONE+ batteries. This setup would ensure tools are always charged and ready to use without the need for an electrical outlet.


Solar Backpack

Integrate the foldable solar panel into a backpack design, allowing users to charge their devices while hiking or commuting. This would be especially useful for travelers and students.