Charge your mobile any where using a 9V battery or any other portable battery with polarity protection.
Step 1: Materials
The materials we need are:
1- On/Off Switch.
2- IC 7805.
3- 9V battery Cap.
4- 47uF Capacitors X2.
5- 100nF Capacitor.
6- Red and Green Leds.
7- 1N4001 diode.
8- 100 Ohm, 470 Ohm Res.
9- Female USB.
10- Plastic Case.
11- Fiber board.
Step 2: The Schematic
You can print this picture in the real size and put the elements as shown and then connect the lines with solider.
put don't connect the leds,usb connector or the switch.
wire them up like the picture avove ( use one color for positive and other color for negative ).
For the USB make sure of the polarity and connect the Positive to pin 1 and negative to pin 4 (see the picture above)
Step 3: Connecting Everything Together
Drill the plastic case to fit the leds, the switch and the usb connector as you want.
Step 4: Finishing
You can connect any a 9V battery using the cap.
or you can connect and dc power supply (like batteries) from 7V to 20V.
I'm using a 12V battery.
Once you connect the power supply the green led will light but no voltage on the usb connector.
When you turn on the switch the red led will glow and the charging will starts using a USB cable.
JAFAR_mor made it!