How does the solar bag work?
For one to understand how a solar bag works, we must first run through the basics of solar energy. A number of photovoltaic cells are grouped together as a panel. Photovoltaic cells are able to produce electricity from direct sunlight. In order for these cells to work they must be accompanied by something called a semiconductor. As daylight hits the solar panel the photovoltaic cells absorb the daylight and its energy, as a result of this electrons become loose and are left to flow freely. The electric fields in the photovoltaic cells force the electrons to flow in one direction. Therefore creating an electrical current, which is harnessed by attaching metal contact cells at the top and bottom of the photovoltaic cell. Once the electrical current is created it is then directed to flow into the battery pack, which can be found within the solar bags.
Once the electricity has been collected you are free to either use the electricity immediately or store it in the battery pack for later use. All you have to then do is plug in your USB device in to the battery pack and begin charging.
Discription of the solar backpack:
The solar backpack is a stylish backpack with all of the functionality and looks of a well-equipped backpack with the addition of a solar panel. Our solar backpack can be divided into two series: the integrated and detachable solar panel backpack series. The integrated backpack has a solar panel integrated with a regular backpack, and the solar panel is part of the backpack. The detachable backpack uses a removable solar panel which can be easily insert into or remove from a specially designed pocket in the backpack. This detachable solar panel can also be used as a separate solar charger. For example, it can be placed under sunlight to charge electronic devices.
We use lightweight, flexible amorphous silicon panel with an efficiency of 7%-8%.
With a ergonomic design, the backpack can carry a 14-17 inch laptop computer.
Better light sensitivity than traditional C-si solar panels: Even under the natural light or in clouldy days, the solar panel can still charge electronic devices.
Removable solar panel, easy to clean(upon different models)
Built-in and long lasting battery pack—specially designed to maximize the solar energy havesting.
The output 5v is universal for charging almost all tablets, smart phones and other electronic devices.(customizable on size and voltage)