Hottest solar backpack bag 3 solar panel backpack can charge laptop,mobile phone/mp3,mp4/ radio/digital products. Solar Hottest solar backpack bagThicker cotton ... carrrying it for long time streamlined side bag design on both sides of backpack can contain beverages inside.Battery: Lithium with ... 9V,12-16.8VCapacity:3.7V 8800MAH(32.5WH)Solar Bag with three solar panels, can charge laptop,mobile phone/ ...