Before we get to the answer, let’s quickly talk about what a battery actually is. on battery chemical energy is stored and this is converted into an electrical form.

Batteries consist of electrochemical devices such as one or more electrochemical cells, power cells, or fuel cells. Thanks to external links to electronic devices power is supplied.

Batteries have a long history.

Baghdad battery

What you see in the picture baghdad battery, Although it is believed to be the oldest known man-made battery, this claim is speculative. This clay pot, estimated to have been used between 250 BC and AD 640, has a copper cylinder and an iron rod in this cylinder. “voltaic battery” but these claims are treated as the product of pseudoscience. After the US invasion of Iraq in 2003, the Iraqi National Museum was looted and the Baghdad battery disappeared.

Speaking of “voltaic battery”; The modern development of batteries took place in 1800 thanks to the Italian physicist Alessandro Volta.

volt battery

Thanks to this revolution that took place with the voltaic battery, batteries spread over a large area. Unit of electromotive power or voltage volts The reason it’s called is Volta’s work. Volta’s work is based on the work of Luigi Galvani.

When we come to the answer to our main question;

Let’s take a battery powered device, since it needs 3V to work, it takes two AA batteries of 1.5V each. To get 3V from these two batteries, connect in series necessary because current can flow through it.

So what is connecting in series?

We can call it binding one after the other. Just as we place batteries one after the other in a flashlight, i.e. the + and – ends touch each other, the ends of the batteries placed next to each other are as close together as possible. to be close should.

As you can see from this image, if the same ends were pointed to the same place, an extra cable would be required.

Since this is additional material and labor, the most economical and practical method is logically preferable. Every millimeter must be considered when designing a product, even adding an extra wire is considered a waste and increases production costs. Total in terms of volume It is the most efficient design.

Therefore, these contacts are used to get in touch for two different purposes:

In fact, the most logical design is this type of battery in the picture, but since others are more common around the world, it has had no say in the market.

Sources: Science ABC, Wikipedia, Wikipedia 2, Wikipedia 3