how can i make a portable charging device envolving a female usb connector?
usb connector
I have a Female USB Connector, a 330-ohm Resistor, a 5.1 volt Zener Diode, a 9 volt battery connector, a 9 volt battery and a soldering gun, can i make some sort of charger with that?
Sure as long as you dont mind spending a fortune in 9 volt batteries ever day.