Here's a real quick and easy tutorial on making a "portable solar phone charger", it only took me 5 minutes to make one! it's powered by pure solar energy..... When my older brother left on his mission for 2 years, he left something for me: his prized solar panel. as a fellow electronics enthusiast, he told me to.... The diy solar charger. d. solar dc charger controller for solar connect all four power leads from the battery and the solar panel to the controller's input.