Please advise the car battery purchase, the master of auto repair, 5

I'm a professional battery seller, so I'll give you some advice.

Don't pretend to be sails, the quality is unstable, the good ones are very good, and the bad ones will be over in half a year. The same battery is recommended to be unified.

Varta's is very good, buy the kind with a two-year warranty. The quality is relatively passable. But**will be higher, now I don't know your model, I can't give it to you**.

It is luxury that can be bair. Not necessarily.

Generally speaking, the current concept is that maintenance-free batteries are better than water and electricity batteries, and large capacity batteries of the same volume are better than small ones. Foreign ones are better than domestic ones. However, many of the products used in China are produced in joint ventures, although they are made in China and have foreign technology in them, they are still good.

Sail or Varta or Nengbaier are similar, the use mainly depends on how you take care of it, and whether your car has a normal power generation system, don't let the battery lose power. That usually works for a long time.

Usually to choose the brand quality*** Some brands that have not heard of the material can not be guaranteed quality There is more communication before buying what brand colleagues can use with friends How is the quality I don't know how big your battery capacity is The capacity is not the same** There is also whether your car is a special battery or a general battery The special battery is more expensive Your description should be a general battery The old battery plus 340 is equal to the new battery, right?? In this way, you will spend more money, 50-80 batteries are generally used for 2-4 years, pay attention to the battery, do not lack "water", do not be in a state of power loss for a long time.

The choice of automobile battery focuses on "strong, many, stable and low".

First of all: the starting current of the battery should be strong, which directly affects the on-board electrical appliances and power system.

Secondly: the battery starts more times, which means that the service life of the battery and the product are cost-effective.

Third: the performance of the battery should be stable, which is particularly important for the healthy operation of on-board electronic equipment.

Fourth: the battery should also have excellent starting under low temperature conditions. The battery conductivity is 70% higher than that of ordinary batteries, and the corrosion resistance is 66% higher, and it can still provide strong and stable current output at a low temperature of minus 60°C.

At present, there are three mainstream brands of domestic automotive batteries: Sail, Camel and Varta. Founded in 1887 in Hagen, Germany, VARTA is one of the world's leading automotive battery brands, and is part of the world's leading energy storage solutions leader Clarios (formerly Johnson Controls Energy & Power), providing a wide range of vehicle types, including AGM batteries.

Table of Contents of Articles. First, what is a battery Second, the role of the car battery Third, the brand and purchase suggestions of common car batteries When it comes to buying car batteries, first of all, I....Write an article Login How to choose a car battery? Which battery brand is better?

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Method: 1. It is best to buy new products - the Guangzhou Municipal Administration for Industry and Commerce reminds consumers that when buying automobile batteries, they should confirm that the specifications, dimensions, and terminal positions meet the requirements of vehicle installation and use;

2. Pay attention to the liquid level - the electrolyte level of the automobile battery should always be kept between max and min, checked once a month, and depending on the decline of the liquid level, properly replenish distilled water, and do not add acid;

3. Prevent the battery from overcharging or long-term power loss - overcharging will cause the active material to fall off, and the loss of power will cause the plate to vulcanize, so it is necessary to ensure that the regulator voltage cannot be too high or too low. To prevent the battery from discharging with high current for a long time, the starting time of each use should not be greater than 5 seconds, and the interval between two continuous starts should be 10 15 seconds;

4. Prevent rust - the oxides and sulfates produced by the battery clip must be scraped and coated with petroleum jelly to prevent further corrosion, and the dust and dirt on the battery cover and the spilled electrolyte must be removed frequently to keep it clean and dry to prevent self-discharge.

Maintenance: 1. The liquid level of the electrolyte should always be kept between max and min, checked once a month, and according to the decline of the liquid level, distilled water (pure water) should be properly supplemented, and no acid should be added;

2. When the voltage of the battery is insufficient, the light is dim and the starting is weak, it should be charged outside the vehicle in time;

3. Prevent the battery from overcharging or long-term power loss - overcharging will cause the active material to fall off, and the loss of power will cause the plate to vulcanize, so it is necessary to ensure that the regulator voltage cannot be too high or too low.

4. During use, check whether the exhaust hole is unblocked frequently to prevent the battery from deforming or bursting;

5. The battery should be kept away from heat sources and open flames, and ventilation should be maintained during charging and use to prevent burning and injuring people;

6. To prevent the battery from discharging with high current for a long time, the starting time of each use should not be greater than 5 seconds, and the starting time of two consecutive uses, with an interval of 10-15 seconds in between.

1.Select a branded battery.

When buying a car battery, try to buy the brand, quality***. However, it should be noted that there are also counterfeit brands, and you have to go to a regular auto parts center to buy them.

2.Refurbished with care.

Some batteries look new, and they are likely to be refurbished, which depends on whether the workmanship of the battery is fine, whether the outer packaging is tight, etc.

3.Have an expiration date.

If you buy a new car battery, you must have a certain shelf life before such a battery can be used. Don't use it for a period of time and then lose power and can't use it.

4.Pay attention to whether the battery interface is brand new.

After the battery is purchased, it is necessary to carefully check the interface, whether it is brand new, whether there are traces of use, and some new batteries have been used for a period of time and should not be purchased.

5.Pay attention to the electrical protection of the battery.

The new battery you buy should also pay attention to the protection of electricity, and you can't turn on the headlights after the ignition is turned off, which is very power-consuming. Usually try not to turn on the radio and lights as much as possible.

It is generally recommended to have the same brand and model, or remember the corresponding model configuration to buy the corresponding model suitable, and some vehicles need to be rematched with the battery The precautions are as follows:

1. Check the physical specifications of the battery:

In addition to choosing a well-known brand battery with long life, temperature difference resistance and shock resistance, it is also necessary to choose from the specifications and performance parameters of the battery.

1.Battery size: When buying a battery, remember to check the physical specifications (length, width and height) of the new battery, and try to choose a battery with the same size as the original configuration.

2.Two performance values: CCA (cold cranking current) and C20 (battery capacity indicator).

The capacity index of the battery C20 (unit ampere-hour) reflects the storage capacity of the battery, the larger the number, the larger the battery capacity; The cold start current index CCA (in amps) of the battery reflects the instantaneous starting ability of the battery.

2. Check the factory date of the battery:

The battery also has a lifespan, and it is essential to carry out professional voltage testing for the new battery before loading to ensure that the open circuit voltage of the battery is above 12 volts in the normal state and the power is full.

3. Check the appearance:

When buying batteries, you should buy them from regular channels (such as 4S stores and battery stores). At the same time, be sure to carefully check the appearance of the battery, and check whether the product has any bumps or leakage after opening the box.

The car battery has the most capacity of 45ah and 60ah, try to choose the same capacity as the original car battery, and choose a big brand battery.

When the car starts, it relies on the electric motor to drive the engine, which consumes a huge amount of power when starting, and the starting current of the car is about 200-300A, and 500A is selected to take the live wire. The starting current of medium-sized vehicles is 400-600A

600-1000A can be selected, and 2000-2500A can be used for large vehicles.