Solar powered usb has 5v 1A output.19 v 290 ma solar panel is used to charge 12 v 2.1 A battery. Works great also without battery.I’ ve used 12v regulator for battery charging and 5v regulator for out
Part 2 is Here – https://www.youtube.com/watch?v=D-t5SbZ9Lfw
Post time: Jul-13-2017