The ammeter of BigBlue 28w solar panel charger can measure the current real-time value, easy to your use. Note that the value depends on your connected devices, sunlight intensity and the used cable. If your device has an limited input current of 1A (such as the iPhone), the amount of ammeter will show between 0.8A and 1A in theory.
Higher Solar Conversion Efficiency
SunPower Solar Panels is the most durable panels at present, whose conversion efficiency can reach 24%. If clouds blocking the sun, this solar charger can detect intelligently the sunlight and restart to charge your electronic in 30s when there are enough sunlight. This folding solar charger is easy to carry for any outdoor activities such as camping, climbing, fishing etc.
Exclusive Smart IC Technology
With the built-in intelligent chip, our solar phone charger detects your device then deliver its fastest possible charging speed( Single maximum output up to 5V/2.4A, dual maximum outputs is up to 5V/4A). Dual-port applys to all the 5V Android devices and 5V powered apple devices. Note: We don't provide the lightning cable for Apple devices.
Special PET Polymer Surface
Industrial-strength PET polymer fabric protects your portable solar panel and your devices from occasional rain or wet fog. IPX4 waterproof level, but the USB ports and ammeter are not water-resistant, so keep them away from water while using. The pocket with a zip will keep your devices safe and clean while camping.
Easy to Use
Please unfold four solar panels under direct sunlight in the open air( No cloud and no shadow), then connect your device to the usb port with your certificated cable. 4 carabiners allow you to hook your solar charger everywhere convenient to get solar access.
What You Get
1 x Solar charger
1 x USB-A to USB-C cable
4 x Carabiners
1 x Owners manual