The Anker PowerPort Solar offers 21 watt SunPower solar that is enough power to charge two devices at the same time. It has a three panel solar charger, two USB-ports and PowerIQ technology that provides the charging speed up to 2.4 amps per port or 3.0 amps overall if you are using both ports at once. This Anker 21W portable solar charger also is a lightweight and ultra-thin design, it folds into a small package and fits in a backpack. It is a cool travel gear; you can attach the panel to your backpack or tent using the two stainless steel eye-holes.
