To lead a peaceful and comfortable life God has given us all the necessary requirements. But us being humans, no one is satisfied with what they have and that is why they are always craving for more. Gadgets have crept into our lives so much that it is almost impossible to imagine a day without them. In the 21st century, technology has developed hugely without a speck of doubt.

There is always this crave for creating something and inventing technology to make our lives easier. Inventions like the computer, laptop, smartphones, tablets etc have impacted on the lives of every human being largely. Just take the example of smartphones. Without them, communication would have to be made over PCOs resulting in long queues. Also with the use of internet facility on the smartphone many types of facilities such as banking, purchase of goods and services, payment of bills etc have come within the grasp of mankind.

But all these gadgets need “charge” to constantly impact our lives. Electricity passes through the charger (which is basically a step-down transformer) and charges the battery which stores the charge to make the gadget work. Hence today we are going to show you how to a make a 12-volt battery charger with your PC power supply.

How To Make 12V Power Supply

The things needed to make the charger are:
↣ PC power supply a.k.a Switched-mode power supply or commonly known as SMPS
↣ Screwdriver
↣ Alligator clips
↣ Testing bulb
↣ USB cable and the charger
↣ Solder machine and soldering iron
↣ Cutter
↣ Black tape

Making a 12-volt battery charger with your PC power supply

#1. Firstly clean the all the wires from the zip ties with have been attached from earlier.

#2. Then you need to bypass the gray and the green wire for booting up the SMPS. That is why you need to connect a bypass wire with the green and gray wire in the power caps.

#3. We have to take a power cap which has contains a yellow and black wire. We have to take this wire because of the fact that they are the 12-volt wires.

#4. Then take a testing bulb and put the negative wire into the hole which is attached to the black wire in the power cap. And the positive wire into the hole which is attached to the yellow wire in the power cap.

#5. Connect the power plug to the SMPS and turn on the switch and check whether the bulb is operating or not. If not then the SMPS is not functioning. At this point, you need to fetch another SMPS.

#6. Now with the help of a cutter cut out the yellow and the black from the power cap and cut out the plastic coating hence revealing the naked tip of the wire.

#7. After this take some extra wire and repeat the same process as described above. Now do this for both sides of the wire revealing the naked wire from both sides.

#8. Take the alligator clips and open the plastic end of the alligator clips revealing the metal portion. Take the soldering machine and the soldering iron and solder one side of the naked wires to the alligator clips. But remember you have to solder the black wire to the black alligator clip and the yellow or red wire to the yellow or red alligator clip. This because that black represents negative charge hence it will be easy for you in connection of the wires without any confusion.

#9. Then after soldering, attach the plastic end to their position. Then join the other naked end of the wires from the alligator clips to the yellow and black wires cut out from the power cap. Remember the black wire to black one and the yellow or red wire to the yellow wire of the power supply/SMPS.

#10. With the use of black tape cover the joined ends of the wires.

#11. After this take the USB charger and open it. Take out the USB port from the charger with the help of the screwdriver.

#12. Then cut out another yellow and black wire and remove the plastic covering from the wires revealing the naked wire. Then connect the naked end of the yellow and black wire to the terminals of the USB port.

#13. With the help of the soldering machine and soldering wire, finely solder the yellow and black wire to the terminal of the USB port.

#14. With the help of a voltmeter check the voltage coming out from the wires. One the positive end of the voltmeter to the yellow wire and the negative end of the voltmeter to the black wire. The voltmeter should be showing a voltage of 12 volts on it.

#15. After that take a black tape and cover up properly the area which you have soldered.

#16. Then take a USB charger cable and plug one end into the newly made USB port on the SMPS and the other end to your smartphone.

#17. Lastly turn on the power supply and you will see that your will start to charge.

You can make many USB ports on the SMPS like the process mentioned above. Therefore you should be able to charge many devices at once and that too at a fast rate.