12v power supply for car This is a topic that many people are looking for. aygrt.net is a channel providing useful information about learning, life, digital marketing and online courses …. it will help you have an overview and solid multi-faceted knowledge . Today, aygrt.net would like to introduce to you Safely charge a car battery using a computer Power Supply Unit (PSU). Following along are instructions in the video below:
“Everyone today i m going to show you how you can charge your dead car car battery using an old computer ccu so before we start let me just show the voltage reading of my car battery. There are other methods and other equipments that can be used to charge a car battery. But this one would be the simplest and would require least number of accessories first of all once you get hold of your computer s ecu. You need to cut off the heads of all these wires and then to charge the pcu.
Without the motherboard you need to find this green wire. I believe the color code that we use on the wires is universal so you will have a green wire. That you need to attach to any of the black wires. You just simply need to ground the green wires.
That way if you supply the current to the computer piece here it would start automatically. As you know there are a number of wires on a computer pc. So what we are interested in is a ground..
Wire the well the plus 12 and a. Plus. 33. Volts.
Wire the. Reason we are using minus. 12. 33.
Volt. Line. Is because we do not have a 15 volt..
Line. Directly on a computer. Pc you if i. Use the 12.
Volt as a ground and plus 33. As a positive terminal. The total potential difference. I get is around 15 volts.
But still i cannot use the 16 volts applied directly to start charging my car battery because the potential difference across the terminal of the battery is very less even. If you do not have a multimeter or a voltmeter to check the potential difference or the voltage across the battery terminal. I would suggest that you start charging your car battery using a 12 volt line for initial 10 to 15 minutes and then you can switch over to a 15 volt line and i will show you the current pattern that the battery would follow so that you do not have to check anything you can simply connect the wires and charge your battery..
I will be simply taping the wires onto the terminals. I would not really suggest that because if there is a small amount of gap between the wire and the terminal things may go wrong now as you can see has connected my battery to a 12 volt line. But there is still some current flowing through the circuit. That is because the initial voltage of the battery itself was well below 12 volts and here you see the voltage across the terminals.
While i m charging the battery. Using a 12 volt line now after about 10 minutes. You can see the voltage across the terminals. Have increased a bit and the current has come down this means when patrick got charged a bit and the potential difference.
Now has come up to about 11 volts. And now we can reach to the 15 volt line and we ll also see the current flowing through the circuit. The current through the circuit..
As you see here is around 400 million. So this will take a long time to charge the battery. But it would be very safe so we will have to lead to charging on for like 8 to 10 hours. And when i start charging the battery.
The potential difference across the circuit is around eleven point seven volts and now we believe this circuit. As it is for the next eight hours and now after eight hours as you can see the circuit voltage has come up to around twelve point two volts and the circuit. Current has also decreased by about fifty million. A simple calculation would tell you that the battery has stood around three and three hours during the state hours of charge after eight hours of charge that s the final voltage of the bag.
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