The battery is a very delicate part. She is remembered mainly in winter, when the car has to start in difficult frosty conditions. Problems happen at other times of the year, but demand for batteries peaks during the winter.
Necessary
- - instructions for the car;
- - instructions for the battery.
Instructions
Step 1
The first step is to read the vehicle manual. If the manufacturer strongly does not recommend using a certain battery with certain characteristics, then there is room for creativity. The main characteristic of a battery is its electrical capacity, which is estimated in ampere hours. The larger the battery capacity, the more electricity can be spent on starting the engine, that is, the longer it takes to turn the starter. If your car is equipped with a solid power package, and this is typical for modern cars, then an extra 5-10 Ampere hours will not interfere with the battery.
Step 2
There is one more important point worth paying attention to. The battery is 100% efficient at + 27 ° C. However, if the ambient temperature is -18 ° C, the battery performance is reduced by up to 40%. At such a time, to start the engine, you need to have more than 2 times more energy in comparison with the temperature of + 27 ° C. In colder climates, there is a need for large batteries. Also, when choosing a battery, you should pay attention to its capacity. It shows the length of time in minutes after which the battery delivers 25 amperes at + 27 ° C. There are some tricks to using the battery.
Step 3
After 2-3 years of use, there may be some problems with the battery. In winter, at a temperature of -18 ° C, the battery does not charge well due to the increase in internal resistance. During short trips in winter, the energy that the battery spends on starting is not able to be compensated. That is, if the car starts up and you drove 200 meters and drowned the car, the generator simply does not have time to replenish the energy that was spent on the cold start. As a result, the battery functions for wear, discharges faster and fails.
Step 4
It is worth carefully considering the filler plug. As you know, during battery charging, water evaporates from the electrolyte and decomposes into oxygen and hydrogen during electrolysis. In order for the resulting gases to evaporate, a special hole is made in the plugs. In cheap batteries, there is a simple hole in the plugs, and in higher-quality ones, something like a valve is mounted. The main thing that needs to be decided when choosing a battery is in what conditions it is planned to operate the car and the battery. For Russian winters, it will be advisable to choose a battery with a larger capacity, and do not forget to study the recommendations for a specific car.
