• High-performance Solar Cell: BigBlue used upgraded solar cells whose conversion efficiency can reach 25.4%. Without metal lines on the front, the solar cells capture more sunlight, increasing electricity generation while providing a sleek design. Fewer front-side components also help these cells stay cooler, enabling solar panels to improve light absorption and extend their lifespan
• Built-in Digital Ammeter: BigBlue 28w solar panel charger can measure current real-time value, which is convenient for your use. Note that the value of actual outputs depends on the sunlight intensity, placed angle, temperature, connected devices etc. The foldable design and 4 carabiners are easy to carry for any outdoor activities such as camping trips, climbing, hiking, fishing etc.
• Exclusive Smart IC Technology: With the built-in intelligent chip, our solar phone charger detects your device and then delivers its fastest possible charging speed (Single maximum output up to 5V/2.4A, dual maximum outputs up to 5V/4A). If clouds block the sun, this portable solar charger can intelligently detect the sunlight and restart to charge your electronics when there is enough sunlight.
• Special PET Polymer Surface: Industrial-strength PET polymer fabric and IPX4 waterproof panels protect your backpacking solar panel from occasional rain or wet fog (USB ports and ammeter are not water-resistant). The zipped pocket keeps your devices safe and clean while camping. Please don't place your cellphones inside the pocket while charging for fear of overheating
• Easy to Use & Friendly Customer Support: Please unfold four portable solar panels in direct sunlight in the open air (No cloud and no shadow), then connect your device to the USB-A port with your certificated cable. This folding solar charger can't store electricity. You'll Get: 1x 28W Solar Charger, 1x USB-A to USB-C cable, 4x Carabiners and our friendly customer service