Create a backpack with which you can charge smartphones and mobile phones using solar energy is not a difficult task.
Calculating the cost really low material that we find is really a good investment account that both help the environment by harnessing the energy that gives us the sun.
Make sure you have on hand : Backpack, Solar Panels, Battery or accumulate, Electrical wire, Welder.
First of all, let’s go get an old backpack or buy them a new one without spending a fortune as it will cut the front of it. Now take the small solar panels to the width of the pack and measure the perimeter of the same. With much patience cut the front of the backpack in accordance with the measurements of the solar panels that we previously mounted.
Now connect to the solar panel 2 electrical cables and we settle them with soldering iron and tin. The opposite party of the two electrical cables must be connected always with soldering iron and tin to a battery or an accumulator 6 Volt.
Now let’s take an old charger from our phone or smartphone and cut the part of the plug. Taking great care and according to the polarity of the plug wires connect to the accumulator.
To test that the wires are properly connected, we can connect the plug to the smartphone and try if the same charge. Tested everything we take the solar panel and fix it to the backpack using fabric glue.
Let the glue dry for a few hours so that it engages on the backpack. We just have to use our new brand and pack to load our beloved devices.
