Householdhacker submitted on Youtube a technical solution for those who need an emergency solar cell phone. The gadget works with a solar plate, an ordinary diode and two wires.
The solar phone presented by Householdhacker can be made by anyone with a cutter, a glue gun and of course, the necessary parts.
These can be bought from specialty stores or from the internet, the price of the entire circuit being about $5.
In just a few minutes, following the instructions in the video below, you can build a solar cell capable of operating in all conditions, without the need of an outlet.
It could be a useful gadget in case you get lost in the mountains or for any other emergency.