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Author Topic: How does Car battery works? How does it recharge by itself?  (Read 3170 times)


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How does Car battery works? How does it recharge by itself?
« on: October 11, 2013, 11:47:45 PM »
I wonder the working of a Car battery, I just want to know how it works?

What exactly happens for its working, How does it get recharged by itself?

Will it now worn out after sometime?

Offline infomaniac

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Re: How does Car battery works? How does it recharge by itself?
« Reply #1 on: October 11, 2013, 11:49:21 PM »

Yes, thinking of the working of Car battery is more like thinking about the invention of light or so which is marvel in its time. As you had the doubt itís true that Car battery do get worn out someday but not soon as it gets recharged by its own.

The batteries which are used in Cars are called as lead acid batteries which is a electrical storage devices and carries out reversible chemical reaction to store energy. It works with the combination of lead plates and electrolyte (diluted sulphuric acid(35%) + Water(65%)) which acts the agent to convert the electrical energy into potential chemical energy and vice versa.

Now a basic car battery consists of six galvanic cells in series which provides 12 volts together approx ( 2.1 volts for a total of 12.6 volts) While discharging the acid (electrolyte) reacts with the materials of the lead plates changing them to lead sulphate. Now when recharge happens the chemical reaction is reversed i.e the lead sulphate reforms into lead oxide and lead.

In this way the car battery works internally and you can keep it healthy by using it frequently but not keeping it idle for a long time rather using it for long time to increase is usage throughout.
« Last Edit: January 18, 2014, 06:53:04 PM by infomaniac »

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