this is my design
Solar Power Control Center for Back Pack with Digital Voltage Charging Display is the first solar power device for backpacks lovers. It is an integrated solar charging solution making your backpack, handbag, messager bag or vest smarter, effective green solar charging module. The solar power can be used for your cell phone, high tec toys, radio, digital camera, PDA, hand held GPS unit, CD player or MP3 player, and even in a laptop computer in the next model.
You can travel in remote country and wilderness with Solar Power Control Center without the worry of having no power.
The integrated solar charging module can be utilized by using a common 12V automotive charging adapter
and transformer (100/220 V ) and PC power supply
Personal electronics you own eg a cell phone as an example, you can use jumper change the cell phone battery during casual commutes or long hikes with the Solar power control center. The result is an extension of battery life, and a source for charging when traveling in remote areas where traditional charging sources are not available, or in emergency situations.
The result is the ultimate device in your backpacks for your mobility needs including a personal solar power charg