Design Your Own Portable Mobile Charger Using A 9 Volts Battery

Have you ever faced issues of Battery low when its required the most? Well, This article might help you in not to go through those issues anymore. You can design a portable charger which charges your mobile when your battery is about to die and can carry out with using a DC battery of 9 volts or 12  volts. Isn't it Amazing ?The battery which we use for general purpose along with little extra assets makes you to build a charger which helps you in sorting out the issues which you might face while travelling or during power failure

How it's different from power banks? 

This question might raise in your mind when you see this post. The main drawback of power bank is that it needs to be charged up to use and what if the power failure is for longer time and even your power bank got discharged during the power failure?Here comes the application of this portable charger using a 9 volts battery and a regulator circuit.Where in this circuit just uses available battery with you which is very economical and can charge your devices using USB port. 

So lets see what are the prerequisites for this Charger, Here they are:-

• 9 v battery and connector - 1 no's
• USB female connector - 1 no's
• IC voltage regulator ( 7805) - 1 no's
• Red LED 5 mm - 1 no's
• 470 ohms resistor - 1 no's
• Bottle caps - 2 no's

That's all we need, now let's get started with the procedure to make your own mobile charger, follow the steps as below:

• Take a soldering iron and make some even space on the bottle cap top side in the middle of it, such that USB female connector can fit in through. Don't make the opening too large so that it gets loosened up. Make a mark on cap and then use soldering iron for better cut. 
• Apply Glue at the corners of the USB connector which is fitted to the cap. keep it aside till it gets dried up.
• Follow the datasheet of USB female connector's terminals purpose as given below.
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• Take some connecting wires and make it into small pieces and solder them to the USB connector to the first and last pins. Note that use RED wire for positive and BLACK wire for negative respectively to avoid confusion.
• Now to do the later part of circuit, take another bottle cap and using soldering iron make a small opening at the edge of sides of cap so that the battery connecting wires get penetrated through. A small opening at top of side corner is quite enough.
• Now cut the excess terminals of 7805 IC so that it can get fitted in that cap. note that reduce the height of the terminals just a bit and solder them to the connecting wires of battery. and Connecting wires of battery has two wires Red indicates positive and Black indicates negative.
• 7805 IC description is given below, follow these notations and solder it accordingly.
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• Solder the red wire to the Input terminal and black wire to the ground terminal.
• Now Solder the black wire of the USB female connector to the ground terminal of 7805 IC
• Then solder the red wire of USB connector to the output terminal of the 7805 IC.

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• Now take 470 ohms resistor and deduct the excess terminals, solder one end of resistor to the input terminal of 7805 IC and the other terminal to the positive of RED colored LED and the negative to the ground terminal of 7805 IC. Use wire in between LED negative and ground terminal.
• Now apply glue to the USB connector cap and stick up the circuit of IC, Make an opening at side end, bypass the LED through that hole. Apply Glue to get it stick to the bottle cap.
• Now apply glue at the corners of another bottle cap and attach both caps as if their top ends come outwards. Apply glue on top of that attached caps and stick that battery connector to it.
• Now keep it aside to let it dry and then connect the USB cable to the USB female connector, and a 9 v battery to the battery connector. Connect the end of USB cable to the mobile phone. You will see your mobile get's charged up.

Interesting right, Try this at your home. Its very useful and an economical one.Any queries or feedback feel free to comment in the comment bad provided below.Thank you.

Also read : Believe It or not!You can actually charge your Iphone with an Onion.