The BigBlue 28W Solar Charger Foldable (view on Amazon UK) is not only budget-friendly but also offers a range of features that make it a standout choice for outdoor enthusiasts.
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The BigBlue 28W Solar Charger Foldable at a Glance
Advantages of the BigBlue 28W Solar Charger Foldable
Pros
Disadvantages of the BigBlue 28W Solar Charger Foldable
Cons
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Our Verdict
This solar charger excels in its primary purpose. It charges small 5-volt devices and provides a reliable and fast charging experience for power banks and smartphones. The product is compatible with various devices. Also, it can charge a 5000mAh power bank in approximately 90 minutes.
Also, it includes an ammeter and internal chip that ensures stable charging. On the other hand, the Smart IC Technology delivers optimal charging speeds. The device’s compact size, coupled with stainless-steel eye-holes. This allows easy attachment to backpacks, trees, or tents for on-the-go charging during outdoor activities.
Despite some concerns about water resistance and occasional issues reported by users, the BigBlue 28W Solar Charger Foldable strikes an optimal balance between portability and power. In short, this is an excellent choice for outdoor enthusiasts.
BigBlue 28W Solar Charger -Lightweight and Efficient
Lightweight and extremely portable
The first thing that catches the eye about the BigBlue 28W is its impressive portability. When closed, the solar charger measures a mere 11.1 inches by 6.3 inches with a thickness of 1.3 inches. Weighing in at 22.55 ounces (640 grams), it’s remarkably lightweight, making it an ideal companion for those on the move. Unfolded, the charger extends to 34.1 inches, revealing four panels, each delivering 7 watts for a total power output of 28 watts.
Durability and Rugged Design
One of the standout features of this solar charger is its durability. The panels are not only portable but also rugged and built to withstand the challenges of outdoor use. This durability is a crucial factor for users who often find themselves in demanding environments where gear resilience is essential.
Practical USB Ports with Protective Cover
The inclusion of three USB ports within a protective waterproof cover is a thoughtful addition. With a rating of 5 volts by 2.4 amperes, these USB ports ensure compatibility with a wide range of devices. The waterproof cover adds an extra layer of protection, shielding the ports from water and dust damage during unpredictable weather conditions.
Versatile Charging Options
The BigBlue 28W is not designed to charge laptops or power stations directly. Instead, it excels at charging small 5-volt devices such as smartphones and power banks. During testing, it efficiently charged a 5000 mAh power bank in just 90 minutes, showcasing its ability to deliver fast and reliable power. The solar panels convert up to 24% of solar power into free energy as long as there’s enough sunlight
Innovative Design Features
Beyond its technical specifications, the BigBlue 28W incorporates design elements that enhance its practicality. The addition of grommets and lightweight aluminium carabiners provides users with multiple options for hanging and positioning the solar charger. This versatility is particularly valuable for those who wish to attach the solar charger to backpacks while hiking or exploring.
Waterproof Concerns Addressed
The concern about water entering the USB ports has been addressed with a rubber coating inside the pouch. This protective layer proved effective in preventing water from reaching the ports during testing, alleviating concerns about potential damage. However, reservations persist about the Velcro closure inside the pouch, which seems to leave gaps. While this design may not be entirely waterproof, it does offer some reassurance when the solar charger is strategically positioned to minimize exposure to water.
Efficiency and Power
In practical testing, a single panel took approximately three to four hours to fully charge, equivalent to 2000 milliamps per hour. Charging two devices simultaneously did not compromise the overall charging time, demonstrating the solar charger’s capacity to handle multiple devices efficiently.
Cutting-Edge Technology
The BigBlue 28W Solar Charger Foldable integrates advanced features, such as a built-in ammeter and chip. The digital ammeter displays the present Amps, providing users with real-time information. The internal chip ensures stable charging, contributing to the overall safety and reliability of the device.
Wide Compatibility
The solar charger caters to a broad range of users by including a Type C cable for Android devices and some DSLRs. While additional cables may be required for other devices, the charger has been tested with various phones, including iPhone, Samsung, HTC, Sony, Nexus, HUAWEI, XiaoMi, and more.
Safe and Clean Charging
Safety is a paramount concern when dealing with electronic devices, and the BigBlue 28W addresses this by incorporating overcurrent, overheating, and short-circuit protection. The pocket with a zip closure adds an extra layer of protection, keeping your devices safe and clean during outdoor activities.
Exclusive Smart IC Technology
The built-in intelligence chip in the BigBlue 28W detects connected devices and delivers the fastest possible charging speed. With a single maximum USB output of up to 5V/2.4A and dual maximum USB output up to 4A, the solar charger caters to both 5V Android devices and Apple devices.
Special PET Polymer Surface
A unique feature of the BigBlue 28W is its special PET polymer surface, offering protection from occasional rain or wet fog. With an IPX4 waterproof level, the charger adds an extra layer of defense against the elements.
User Feedback: Real-world Experiences
While technical specifications provide a solid foundation for evaluation, real-world user feedback provides valuable insights into the practical performance of any product. Users have reported varying experiences with the BigBlue 28W, showcasing both its strengths and areas for improvement.
Specifications of the BigBlue 28W Solar Charger Foldable
Power
| Model | SolarPowa 28 (with ammeter) |
| Rated Power | 28 w |
| Working Power | 20 w in total |
| USB Type-A Output | 5V / 2.4 A 2 x USB: 5V / 4 A Total (Max) |
| Net Weight | 0.67 kg / 1.48 lbs |
General
| Solar Cell Type | Monocrystalline Solar Cell (SUNPOWER) |
| Folded Size ( L x W x H) | 282 x 160 x 33 mm (11.1 x 6.3 x 1.3 inches) |
| Unfolded Size ( L x W x H) | 282 x 840 x 5 mm (11.1 x 33.1 x 0.2 inches) |
Read customer reviews
“The bad news: the highest charging current I’ve had in ideal conditions (Scotland, midsummer, midday sun, clear skies) is only 1.7/1.8A. A long way short of the maximum suggested by the manufacturers. The good news…”
Read the full review on Amazon UK
“Seems to lack the circuit to prevent device discharge if so much as the shadow of a sparrow crosses the panels. Bought as a backup for going to a festival. Left a power bank plugged into this on a very sunny day (in Devon, SW England), and when I got back that evening…”
Read the full review on Amazon UK
“Bought this for a hiking trip (as can clip on a backpack) but first took it to a festival for a trial run.
When hung inside a plastic tent window on mostly overcast days…”
Read the full review on Amazon UK
Conclusion
For an affordable price, the BigBlue 28W Solar Charger Foldable is an excellent investment for outdoor enthusiasts. With its sleek and portable design, this solar panel system offers efficiency and convenience. Boasting four panels, each generating 7 watts for a total of 28 watts, it efficiently converts up to 24% of solar power into free energy. The robust and durable construction and the three USB ports make it an excellent choice for charging small 5-volt devices. While not intended for direct laptop or power station charging, it´s compatible with a variety of devices. Besides, its safety features, like overcurrent and short circuit protection, make this product a reliable companion for your adventures
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