How to choose a battery for a car

The battery is one of the most important nodes in the device of a modern car, without which its full functioning is impossible. It is used as to start the engine, and to power the auxiliary equipment and various electronic units with which it is equipped machine, and their performance depends on how much The battery is quality, as it shows itself in extreme operating conditions and how well she is able to hold charge.

choose a battery for cars

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We recommend reading an article from an expert on the selection of high-quality Charger for car battery.

Top Battery Manufacturers

In order for the battery to serve as declared by the manufacturer term and summed up at the most inopportune moment, preference should be give products to world famous concerns:

  1. Bosch;

  2. Varta;

  3. Baren

  4. Topla

  5. Exide

The products of these concerns are sold in major retail stores. networks, and also supplied by many manufacturers on the conveyor. Choosing a specific model from the catalogs of a particular company, you need to read customer reviews that relate to operational characteristics and technical nuances, as well as strengths and weaknesses. You can find them on the Internet, on theme sites and social networks.

Battery Operation Principle

Car battery is a source electricity generated by the chemical reaction of the plates, made of lead, placed in an electrolyte, in the role of which sulfuric acid almost always acts. Side element reactions are sulfates secreted by plates that result to a decrease in electrolyte density and natural aging of the battery as consequence.

Types of batteries for sale

Under the general name hides a great many different models differing in the principle of work and, accordingly, their characteristics. The following battery classes are distinguished.

Classic Serviced Batteries

Classic Serviced Batteries

Equipped with six banks, each of which gives out 2 volts voltage. As a material for the manufacture of plates Antimony lead is used. The top battery cover has six caps for measuring electrolyte density and its replacements if necessary.

Advantages

  • Inexpensive

  • Long life with proper use;

  • Allow electrolyte replacement if necessary;

disadvantages

  • Gases during operation;

  • Sulfuric acid is used as an electrolyte;

Low antimony batteries

Low antimony batteries

In the manufacture of plates of such a battery, a special lead with a minimum antimony content, which allowed to increase service life and performance, and reduce frequency of monitoring and maintenance.

Advantages

  • Small self-discharge;

  • Inexpensive

  • Stability to voltage drops in the on-board network;

  • Low frequency of service;

disadvantages

  • Not suitable for modern cars with a lot of electronic blocks;

  • Harmful fumes are still present;

Calcium batteries

Calcium batteries

Belong to the class of non-serviced – when developing a resource subject to disposal. They are characterized by a small self-discharge and extended service life. Evaporation of water from electrolyte during operation is at a minimum level.

Advantages

  • High efficiency;

  • Extended service life;

  • Water practically does not evaporate;

  • Minimum self-discharge;

disadvantages

  • When a resource is depleted, it must be disposed of;

  • Charging requires a voltage of about 15-16 volts;

  • Afraid of full discharge;

AGM and GEL batteries

A gel-like substance is used as a working substance. polymer mass impregnated with electrolyte. When passing chemical reaction released carbon and hydrogen are filtered at gel, due to which evaporation is practically absent, and Efficiency and resource are increasing.

AGM and GEL batteries

Advantages

  • High efficiency;

  • Great for cars with a lot of auxiliary equipment;

  • No evaporation;

  • Self-discharge is almost completely absent;

  • Increased resource;

disadvantages

  • Expensive;

  • Afraid of excessively low freezing temperatures;

EFB batteries

Similar in design to the above batteries differing from them by a significant thickness of the plates, placed in a special gel composition. Thanks to such the design achieves minimal charging time and significantly resource increases.

EFB batteries

Advantages

  • Fast charging;

  • Significant starting current;

  • Operational temperature range from -50 to +50;

  • Minimum fire hazard;

  • Long term of operation;

disadvantages

  • High price;

  • Afraid of deep discharge;

Battery Selection Options

battery selection criteria

In addition to the type of device, there are a large number of criteria, which need attention.

Geometrical dimensions of the battery and location terminal

  1. The battery installed on the car must be suitable for seat and allow installation in a standard slot a car. It should be remembered that the higher the capacity – the more geometric dimensions of the battery;

  2. The location of the battery terminals must match the battery that is installed on the car. Some manufacturers deliberately swap positive and negative terminal, resulting in short wire lengths for correct battery installation;

  3. It should be remembered that many cars require the installation of a battery in the trunk, where a special niche is allocated for her, and therefore the battery, the size of which is larger than the compartment parameters, not corny will fit.

Battery rated power

A parameter that reflects the amount of energy consumed for 20 hours with a fully charged car battery.

  1. Most gasoline cars suggest installation of a battery with a capacity of 40 to 80 amp hours;

  2. Diesel cars require a battery for proper operation increased capacity – from 80 to 120 ampere-hours;

  3. Heavy fuel trucks large engine capacity, require a powerful battery, capacity which can reach 150-200 ampere-hours;

  4. Do not exceed the manufacturer’s recommended power. recommended. To charge a more capacious battery, the generator will work in peak mode, but the battery is fully charged will not be able to. As a result of undercharging, its resource is repeatedly will shrink.

Inrush Current

A parameter that directly affects the battery’s ability make a crankshaft revolution. Reflects the peak current value that the battery is capable of generating at a temperature of -20 degrees for 10 seconds.

  1. Low-powered cars do not require a lot of current. 300-350 Amperes are enough for them;

  2. Cars with engines of 3-4 liters suggest installation of a battery with a starting current of 400-600 amperes;

  3. Passenger cars with diesel engines require more powerful battery. Batteries with a capacity of 750-850 amperes are sufficient in most cases;

  4. Trucks may require a full start Battery with a starting current of 1000-1200 amperes.


Attention! This material is subjective opinion of the authors of the project and is not a buying guide.

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