USB Charger 9V
Easy make portable USB charger
Need
Circuit
It's so EASY!!!
Fold
Fold voltage regulator (lm7805) contacts
Cut Wires
Cut wires from batery clip (4-5cm)
Solder
Solder 2 black wires (from batery clip and witch cut off) to voltage regulator ground. Red wire (from batery clip) solder to voltage regulator input.
Solder (part 2)
Red wire (witch cut off) solder to USB +. Black wire (witch cut off) solder to USB -.
Circuit is done!
Cut Holes
With pliers cut holes to USB and switch.
Glue It !
Glue USB and switch in holes. Voltage regulator glue to case wall.
Done!
Enjoy and charge your device!