This is a DIY mobile power bank.By this power bank you can charge your all mobile phones.It's like a pocket power bank.
But in this power bank you can only charge 100% battery of button phones not of android phones.
Let's get started,
Step 1: Take All Components As Shown Below With Pictures -
Step 2: Connect All Components As Shown Its Circuit Diagram
Step 3: Connect Negative of Diode to the USB Code Wire
Step 4: Bent 3rd Pin of the Voltage Regulator and Connect It to the Positive Wire of the Diode
Step 5: Now Connect Positive Wire of Battery Connector to the Switch
Step 6: Connect Output of +ve Switch Wire to the First Pin of Voltage Regulator and the -ve Wire of Battery Connector to the 2nd Pin of the Voltage Regulator
Step 7: Now Connect Negative Wire of 2nd Pin of Voltage Regulator to the Negative Wire of Female USB Code
Step 8: Solder a 1K Resistor to the Positive of the LED
Step 9: Solder a Resistor Wire of LED to the 3rd Pin of the Voltage Regulator and Negetive Pin of LED to the Negetive of Female USB Code
Step 10: Now Our Circuit Is Ready and Steech That Circuit to the Battery Like This
Step 11: Insert Any USB Data Cable to the Female USB Port and Charge Mobile Phones