Freitag, April 12, 2024
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Test: Sandberg (.world) Solar Charger 21W 2xUSB – Power on the Go

Today we’re taking a closer look at the Sandberg Solar Charger 21W 2xUSB Type-A, a product from the outdoor and survival category. We would like to express our gratitude to Sandberg for their trust and for providing us with the Solar Charger 21W for review.


The packaging of the Sandberg Solar Charger 21W 2xUSB Type-A is elegantly designed in black with a striking grass-green border. The front of the packaging prominently features the solar panel, making it immediately clear what the product is. Sandberg’s logo is prominently placed at the top of the packaging, promoting trust and brand recognition.

The product’s specifications are discreetly located at the bottom of the packaging, making all relevant information easy to find. This design conveys professionalism and ensures an appealing presentation of the product.


Features that make it an ideal companion for outdoor activities:

  1. Green Solar Power: The Solar Charger 21W harnesses the power of the sun to generate environmentally friendly energy. By converting sunlight into electrical energy, it enables charging of devices even when away from power sources.
  2. Foldable Design: Thanks to its foldable design, the solar panel can be compactly folded, facilitating transportation and storage. This makes it convenient to store in backpacks, bags, or outdoor gear, occupying minimal space.
  3. IP67 Certification: The IP67 certification ensures that the solar panel is both waterproof and dustproof. This protection rating means it can be safely used in adverse weather conditions without sustaining damage.
  4. Waterproof Bag: The included waterproof bag provides additional protection for the solar panel during transportation and outdoor use. It shields the panel from moisture, rain, and other external influences, thereby increasing the device’s longevity.
  5. Four Carry Hooks Included: The four included carry hooks allow flexible attachment of the solar panel. These hooks enable the panel to be secured to backpacks, tents, branches, or other structures to ensure optimal sunlight exposure.
  6. Designed for Outdoor Life: The solar panel is specifically designed for outdoor use, making it ideal for outdoor adventures such as camping, hiking, trekking, and more. It enables adventurers to charge their electronic devices with environmentally friendly solar energy even in remote areas, allowing them to remain independent.


The Sandberg Solar Charger 21W 2xUSB Type-A offers comprehensive equipment for easy outdoor use. Here are the main components included:

  • 21-Watt Solar Panel: The solar panel is the main component of the charger, converting sunlight into electrical energy used to charge USB-powered devices. With a power output of 21 watts, it provides sufficient energy to charge most common electronic devices.
  • Four Carry Hooks: These carry hooks allow the solar panel to be securely attached to various surfaces. They are designed to be attached to backpacks, tents, or other outdoor gear. This flexibility allows users to position the panel optimally for maximum sunlight exposure and charging efficiency.

With these components, the Sandberg Solar Charger 21W provides a convenient solution for mobile outdoor use, allowing users to charge their electronic devices with environmentally friendly solar energy on the go.


The solar panel of the Sandberg Solar Charger 21W 2xUSB Type-A is extremely user-friendly. It unfolds effortlessly, allowing users to quickly and easily start charging their devices. Plugging in a USB cable is straightforward and requires no special expertise.

The eyelets at the corners of the panel provide a convenient way to attach the panel to a backpack, tent wall, or other suitable objects. This allows users to securely attach the solar panel while charging, whether on the go or outdoors.

On the back of the panel is a pocket containing the two USB-A ports. These ports can be used to charge various devices such as smartphones, tablets, power banks, and more. Integrating the ports into the pocket ensures tidy and secure storage when not in use, protecting them from damage during transportation or inclement weather. Overall, the design of the solar panel offers a convenient and efficient solution for charging devices outdoors.


The solar panel of the Sandberg Solar Charger 21W 2xUSB Type-A is not only powerful but also rugged and weatherproof. Its textured textile surface provides excellent grip and durability, which is particularly important when used outdoors. This surface also makes the panel water-resistant, meaning it won’t be immediately damaged by rain or snow and will continue to operate effectively.

The included bag is also water-resistant, meaning it can repel moisture and splashes. This provides additional protection for the solar panel and connected devices during outdoor use. However, it’s important to note that the bag is not fully waterproof and therefore does not protect against water ingress. Nonetheless, it provides some security and allows the Solar Charger to be used even in slightly damp conditions without compromising charging functionality.

Solar Panel:

The solar panel of the Sandberg Solar Charger 21W 2xUSB Type-A is extremely versatile and reliable, even in less-than-ideal weather conditions. Even on cloudy days, it can still achieve some charging power, although it may be somewhat slower than in direct sunlight. This makes the Solar Charger a practical solution for outdoor use, where the sun isn’t always shining continuously.

The USB ports integrated into the pocket allow for secure storage of a phone while charging, keeping it protected. However, due to their size and shape, storing action cameras or tablets is less practical. Charging time varies depending on the battery level of the device being charged and its size. While smaller devices may be charged more quickly, larger devices may take a bit longer.

With a power output of 21 watts, the Solar Panel of the Solar Charger 21W offers impressive charging speed, especially under favorable weather conditions with sufficient sunlight. This makes it a reliable power source on the go, especially during outdoor activities such as hiking, camping, or traveling.


The Sandberg Solar Charger 21W offers a reliable and user-friendly solution for on-the-go charging. Its foldability and included carry hooks make it extremely portable and easy to transport. Additionally, with its IP67 certification, it is protected against dust and water, making it ideal for outdoor use.

The solar panel charges even on cloudy days, providing a reliable power source when the sun isn’t shining fully. The integrated waterproof bag allows for safe storage of sensitive devices such as smartphones while charging. With a power output of 21 watts, the Solar Charger charges devices quickly under favorable weather conditions.

The ability to charge the Sandberg Survival Powerbank 7in1 72000 makes the Solar Charger a versatile companion for outdoor activities and emergency situations. Whether hiking, camping, or traveling, the Solar Charger 21W offers reliable power and is an essential accessory for outdoor enthusiasts and adventurers.

For its outstanding performance and versatility, the Sandberg Solar Charger 21W receives our Dataholic Must-Have Award.


The Sandberg Solar Charger 21W 2xUSB Type-A is available for purchase through various retail channels and online stores.


Price: 76,99 €