Things to know about car batteries

Batteries are devices that store electricity, provide energy for starter devices, ignition systems and other devices when the engine is not operating. When buying new or maintaining, pay attention to parameters such as size, capacity, starting line to choose the most suitable battery type.

Car batteries and things you need to know

Battery is one of the most important devices in a car. It fulfills the role of storing electricity, providing power to power consuming devices (loads) such as starter machines, stimulating alternating transmitters. The battery will provide power to the load when the generator is not working or the winding cycle has not reached the specified speed. In addition, it has a role to provide power in the case of loads using currents exceeding the transmitter's rated current.

After starting and turning around, the device on the car will use the electricity generated from the generator. At the same time, the battery is recharged to store energy for later start-ups.

Most batteries used in cars are lead batteries. They are divided into categories such as open batteries (battery batteries) and sealed batteries (also called dry batteries). Water batteries can be saturated like adding water, and maintenance-free and disposable dry batteries until they run out.

When buying new or maintaining, pay attention to the following points to ensure safety and stable operation of the vehicle.

Battery on cars.(Photo: Polpularmechanics)

Battery damage indication

Battery has high reliability and reliability, but after a long period of operation it will also be damaged and have the following signs:

1. The car cannot start due to the weak.
2. The car starts weak and turns slowly.
3. Poker lights are blurry and do not cut the relay.
4. Dirty, dirty battery and dirty bottle.
5. The car horn is weak and the lights are dimmed when honking the horn.

Solutions

For experienced drivers, it can be based on some signs to guess and treat the battery that is about to fail.

1. If your battery is 2-3 years old then this is the time to replace it.
2. Eye observation can often be seen as blistering or there are dirty smears that show that batteries are having problems.
3. When we find that the battery has a burning smell, the simplest solution is to replace the new battery.

In addition, you can check the cause of the vehicle damage caused by the battery is not using another battery installed instead, if the car is operating normally, the old battery is broken. In the case of installing new batteries without starting, it is necessary to check the switch, thread, wire system to see if it is broken or broken.

According to the technical experts, there are some cases that the regulation is still quite good but the whistle is weak, the explosion is not possible, the reason may be due to the tissue-tick (poor contact) at the two ends of battery To overcome this situation, we just need to remove the battery from the container, clean the two ends of the pole and need to recharge it to ensure sufficient current.

However, experts recommend that it is a valuable asset, so don't automatically repair it without experience. It is best to bring the car to the official dealer to be inspected by technical experts.

Choose battery size

In case of a new purchase, the first problem you need to consider is the battery size. They are divided into several categories, according to the size that the manufacturer has standardized, in accordance with the location and size of the seat. A suitable battery will be held firmly in the grooves, to avoid problems arising from vibration or vibration during vehicle movement. You should note that some models allow batteries to be installed in different sizes.

CCA (Cold Cranking Amps) cold start current

In addition to choosing the right size, you must make sure the battery has enough energy to start the engine. The starting energy is due to the CCA cold start current parameter . CCA is interpreted as the current intensity that the battery provides within 30 seconds at 0 degrees F (-17.7 degrees C) until the voltage drops below the usable level. For example, a battery (12 volts) with CCA is 600, which means it can provide 600 amperes of electricity within 30 seconds at -17.7 degrees C before the voltage drops to 7.2 volts.

CCA is important for cars in tropical climates, temperatures often below 0 degrees C. When the temperature drops too low, the engine oil and gearbox oil become thick and start the car in the evening. morning will be very difficult. At that time, the battery must have a higher CCA than required and you should not choose a lower-recommended type, because it causes engine damage.

In hot climates, you don't need a high CCA value because engine oil and gear oil are not dense. In addition to CCA, there are other parameters that measure the starting current as CA (Cranking Amps) indicating the current that the battery provides within 30 seconds at a temperature of 32 degrees F (0 degrees C) before the voltage drops. 7.2 volts.

The parameter of hot start HCA (Hot Cranking Amps) is also determined in the same way but at a temperature of 80 degrees F (26.7 degrees C).

Reserve Capacity (Reserve Capacity)

The third important parameter that each battery needs to have is the battery storage capacity. The RC is measured in minutes when the 25 ampere amps battery is 25 degrees C before the voltage drops below the specified level. The common capacity of batteries for cars is 125 minutes. The value of RC shows the ability to start the car and people often try by starting a heavy engine. A small note is like CCA, you should choose batteries with a high RC value if traveling in cold conditions.

Notes when maintaining and repairing batteries

1. All electrical devices should be turned off when starting the vehicle to avoid battery power loss. When starting the current to supply will be higher than normal (5 to 7 times), the battery will drop strongly, so each start up should not last more than 5 seconds and the distance between each boot least must be 10 seconds to keep the battery stable.
2. When installing batteries, the positive anodes must be attached to the back of the sound and the piles must ensure tightening to avoid loose conditions that cause fire exposure, which will not be good and affect the durability of the poles.
3. Regularly check and make sure you have enough liquid water for wet batteries.
4. Regularly clean battery terminals during use and maintenance of batteries periodically according to the manufacturer's instructions for use.
5. Absolutely not let the battery be short-circuited because it will seriously damage the battery and may be dangerous to yourself.
6. When charging the battery, it is necessary to use the charger according to the manufacturer's quality and standards, the charging current must not exceed 10% of the battery's rated current and must not be mismatched when charging.