BigBlue’s new 28W portable solar panel, now available at a reduced price, provides a cost-effective solution for charging low-power devices during outdoor activities or power outages, though it lacks full weatherproofing and a built-in battery.
BigBlue’s 28W portable solar charger is being pitched as a low-cost way to keep small devices running when mains power is out of reach. TechEblog says the panel is currently sold for $59.97, down from $68, and positions it as a practical option for phones, tablets, power banks and other low-draw gadgets rather than as a replacement for a generator or wall charger.
The unit folds into four sections and is small enough to carry in a rucksack, measuring about 11.1 by 6.3 by 1.4 inches when packed away and weighing roughly 1.5 pounds. Opened out, the surface extends to around 33 by 11 inches. Multiple reviews say it uses high-efficiency monocrystalline or N-type cells with conversion figures of up to 25.4%, helped by a front surface that avoids metal grid lines so more sunlight reaches the cells.
Connectivity is another of its selling points. The charger offers dual USB-C ports and a USB-A port, with reviewers broadly agreeing that it can charge several devices at once. Some describe it as a sensible fit for hiking, camping and emergency kits, while also noting a clear limit: there is no built-in battery, so it only delivers power when the sun is available. That means performance can drop sharply in shade, and it is not intended for laptops or other high-power equipment.
The more cautious reviews also point out that the weather protection is limited. One assessment says the device is not fully waterproof, while another notes that the junction box is not sealed for harsher conditions. Even so, the overall verdict across the coverage is consistent: for buyers wanting a light, foldable and inexpensive solar panel for everyday outdoor charging, BigBlue’s 28W model appears to offer a useful compromise between price and performance.
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