BigBlue 28W Solar Charger Foldable with Digital Ammeter, Outdoor Solar Powered Charger With SunPower Solar Panels Dual USB Ports(5V/4A Overall) for iPhone iPad Samsung Galaxy LG Cellphones and Devices

Product Information

That's nearly twice the weight of some other 20-30-watt panels, though less than many 50+ watt panels. Key specs – Type: Solar generator; Maximum capacity: 2,048Whr; Maximum output: 2,400W; Panels included: 0-2; Panel size: 602 x 2,130mm; Maximum panels: 4; Outputs: 3 x 240V mains, 2 x 12V Car, 3 x USB Type-C, 2 x USB Type-A; Dimensions: 525 x 396 x 250mm; Weight: 30.

The solar cells in these foldable units are encased in PET polymer and surrounded by polyester canvas. Getting consistent sunshine is a constant challenge for testing solar power banks and chargers, so we test them and any solar panels provided on sunny days in a south-facing garden, using the internal power meter or a plug-in USB power meter to find the ideal angle and position and evaluate how quickly the solar panel or panels can charge the internal power bank or a smartphone. The generator unit alone can weigh anywhere between 6kg and 20kg, while the solar panels may be around 50 x 50cm when folded and weigh upwards of another 6kg. Frankly, this is one area where the BigBlue solar charger really shines with its auto-restart function. If you’re hoping it’ll power your devices while strapped to the outside of your pack and hiking, you’ll be displeased.The book-style case is protected by zippers so the solar panels can possibly have a longer shelf life compared to most other brands, which usually go with the folding look.

While the SolarSaga 100 is relatively lightweight and folds flat, it doesn't fold down as small as many other 100-watt panels we tested.The amount of sunlight, weather, or shady may cause fluctuations in the current output that prevent your devices from charging.

However, it ran a 42in LED TV, drawing 72W to 75W, for 5hrs 27mins, making it through the first two Hobbit movies in the process. Then you might also have to keep your back arched at a certain angle to maintain the best angle orientation throughout the day. For instance, unlike many other reviews and ‘best of’ lists we evaluated, we firmly recommend using solar chargers with backup batteries.The BigBlue is impressively efficient in its charging capabilities and performed the best in all our testing of portable solar panels. So, we connected the BigBlue with a phone, a battery pack and a DSLR camera simultaneously in our tests.