Battery. Polarity Direct and Reverse

A car battery is one of the most important components of a vehicle. It not only starts the engine and unloads the generator, but also feeds all on-board electronics. The average service life of this device is from three to six years (depending on the model). The main task of any driver is to choose the right battery. Polarity of the part can be direct and reverse, which, in turn, affects the process of its operation.

Types of devices

There are three types of batteries - serviced, low maintenance and maintenance-free.

Serviced battery is subject to repair: when the plates are closed, they are changed to new ones. Also in such models it is possible to control the level of electrolyte - it is topped up if necessary. There are very few similar devices left on the market.

In low-maintenance batteries, you can only monitor the electrolyte. Access to the plates in it. Such a battery can be purchased both flooded and dry-charged - "for growth".

Maintenance-free models are a tightly sealed box, which can not be topped up with electrolyte and there is no access to the plates. Batteries of this type have a longer service life due to the use of helium, which practically does not evaporate. The price of unattended batteries is high.

What to look for when buying?

First of all, you should focus on the model. The least maintenance is a maintenance-free battery. Although its cost is higher than the rest, but the service life is longer.

You need to buy the battery in a specialized store. It is necessary to ask about the presence of a certificate of conformity, in order to avoid the acquisition of fakes.

It must be remembered that all batteries have their expiration date. Therefore, it is important to pay attention to the release date.

What you need to consider when choosing a new battery?

1. The polarity.

2. Capacity. The optimum capacity of the battery is indicated in the vehicle data sheet.

3. Dimensions. It is best to buy a new battery, taking into account the measurements taken from the old one.

4. Starting current (the higher the current, the better).

These four points are the main points that you need to remember and apply in practice when purchasing a battery.

Polarity

When choosing a new battery, it is very important to pay attention to this characteristic. There is a direct polarity of the battery and the reverse one.

The polarity of the battery means the location of the terminals on it. If the polarity is straight, the positive terminal is on the left, if the reverse is on the right. You need to look at the front side.

If the battery's polarity is not selected correctly, the device simply can not be connected, as there will not be enough wires. Even if they are extended, the driver will always experience problems when connecting the terminals.

It is very simple to set the battery's polarity by the car brand. It should be remembered that in machines of American manufacture it is direct, and in Japanese - the reverse one.

Of course, the battery's polarity does not affect its quality. However, if the driver is accustomed to a direct type, then by connecting the terminals, he will constantly confuse them with places. As a result, short circuits and burnout of the wiring can not be avoided.

The easiest way to remember the location of the terminals is by examining the old battery. Polarity is the main criterion in choosing. This characteristic should be taken into account by every driver.

Proper care

To ensure that the battery of the car has served as long as possible, it should be correct, and most importantly, in time for him to look after:

1. The device must be properly charged. Never even allow one full discharge of the battery. It may happen that it will become unusable.

2. If the battery is of a serviced or low maintenance type, the electrolyte should be topped up periodically. The density of the liquid can be measured with an air meter.

3. The surface of the battery should always be clean. Dirt and scum discharge the device, and accumulation of debris in the gas outlets in general can cause an explosion.

4. To avoid short circuits, disconnect the battery correctly. The polarity of the device (positive and negative terminals) will help. Start dismantling it is necessary from the negative terminal, and mount - with the plus.

5. If in winter time the car is not used, the battery should be better removed and stored at home or in any other warm and dry place.

Conclusion

The battery is the most important component of any car. It is not so important what kind of model it is (serviced, under-served or unattended). Proper care will ensure long-term operation of the device.

If the battery is out of order, it is only necessary to buy a new one in a specialized store. Knowing how to determine the polarity of the battery, what other parameters to pay attention to, you will necessarily get a quality, reliable and suitable for your car product.