Why We Can’t Store AC In Battery, Why We Can Only Store DC In Battery
Hello guys, welcome back to my blog. In this article, I will discuss why we can’t store ac (alternating current) in the battery, why we can store only direct current, It is possible to store alternating current in battery?. Each and everything I will try to explain in a simple way.
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Nowadays batteries are used in many places to store energy for backup. The main thing is that we can store only direct current in the battery, we can’t store alternating current. Most of the appliances which we use in our home such as lights, fans, washing machines, etc work on alternating current, but we store direct current in the battery by using some rectifiers. In each and every place battery is used such as in house, industry, substation, power plants, schools, colleges, hospitals, etc. If we have AC storing device then we can store alternating current easily. Well, there is no AC storing device.
Guys what happens if I give alternating current supply to the battery will battery gets charged or remains as it is?
Why We Can’t Store AC In Battery
The alternating current does not have a constant magnitude of voltage and current. The frequency is 50Hz of alternating current. The alternating current has both positive and negative half-cycles. The cycle repeats 50 times in one second or if suppose frequency is 60 Hz then the cycle repeats 60 times in one second.
If we connect direct current to the battery due to constant magnitude in direct current the battery gets charged or discharge. Suppose if we connect the alternating current supply to the battery then the battery gets charged in the positive half cycle then it gets discharged in a negative half cycle, the overall result of charging a battery will remain zero because the positive cycle will be canceled out by negative cycle.
Example
For example, A 5 volts battery is there and if a direct current supply is connected to the battery then the battery gets charge of 5 volts. Suppose if you connect 5 volts alternating supply to the battery then the + 5 volts will charge the battery in the positive half cycle and when negative half cycle come – 5 volts will cancel + 5 volts. Thus all overall results will be zero, +5 -5 = 0.
The battery terminals are fixed (+ or -) we can’t change battery terminals 50 times per second to store alternating current. When we connect the alternating supply to the battery, the positive terminal of a battery in a positive half cycle will charge the battery but once the negative half cycle comes it will get discharged.
There is no such device that changes the terminal of the battery 50 times per second to store alternating current. But the main advantage of storing dc supply in batteries is, it is very safe for humans. If we touch terminals of battery then we will not get any shock and it can be placed anywhere.
I hope this article may help you all a lot. If you have any suggestions for me then comment below.
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Tags: Why We Can’t Store AC In Battery, Why We Can Only Store DC In Battery.
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