Know Car Battery: Functions, Types, How They Work, and the Importance of Car Battery Casks

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Aki Mobil

A car battery is a vital component in your vehicle’s electrical system. While it is often taken for granted, battery maintenance can have a huge impact on the overall performance of your vehicle. From starting the engine to powering complex electronic systems, the battery plays an important role that should not be overlooked.

In this  TransTRACK article, we will discuss the importance of car battery maintenance and the steps you can take to ensure that your vehicle’s battery is always in optimal condition. From a basic understanding of how car batteries work to practical tips for effective recharging, we will help you understand the importance of car batteries in keeping your vehicle running smoothly.

Not only that, we will also introduce you to a modern solution for vehicle maintenance management: TransTRACK’s Vehicle Maintenance System. With this technology, you can optimize your vehicle maintenance schedule, including battery recharging, to ensure the best performance from your vehicle at all times.

What is a Car Battery and its Types

A car battery, or better known as a car battery, is a device used to store electrical energy and supply electrical power for the car engine and other electronic systems when the engine is off. Here is a brief explanation of the common types of batteries:

Dry Battery

Dry batteries are batteries that use electrolyte that is absorbed in a separator, so there is no excessive electrolyte liquid inside. Dry batteries are usually more resistant to leaks and physical damage compared to wet batteries.

Wet Battery

A wet battery, also known as a liquid battery, is a battery that has electrolyte in the form of liquid in its cells. The electrolyte can be water mixed with sulfuric acid. Wet batteries require more frequent maintenance, such as checking and adding water regularly.

Gel Battery

A gel battery is a type of battery that uses electrolyte that thickens into a gel form. The electrolyte in gel form makes the battery more resistant to spills and leaks. Gel batteries also have a longer lifespan compared to wet batteries.

AGM (Absorbent Glass Mat) Battery

AGM batteries use electrolyte that is absorbed in a porous glass fiber paper or cloth. This makes AGM batteries more resistant to vibration and shock, and have faster recharging capabilities. AGM batteries are often used in applications that require high electrical power, such as hybrid systems and vehicles with start-stop technology.

Calcium Battery

Calcium batteries have positive and negative grids made of calcium alloy. The use of calcium makes the battery more resistant to corrosion and allows for slower recharging. Calcium batteries generally have a longer service life and a lower self-discharge rate.

Each type of battery has its own advantages and disadvantages, and is suitable for specific applications and usage conditions. Choosing the right type of battery will largely depend on the user’s needs and preferences.

What are the Functions of a Car Battery

A car battery has several key functions in a vehicle, including:

Starter Motor Drive

One of the main functions of a battery is to provide power to turn the starter motor when starting the engine. The starter motor is responsible for starting the engine, which then starts and runs on its own.

Provides Electricity When the Engine is Off

When the engine is off, the car battery serves as the main source of electrical power to provide power to the electronic systems in the vehicle, such as the lights, radio, navigation system, and more. This allows the vehicle to remain electrified even when the engine is not operating.

Electrical Energy Storage

A car battery acts as a temporary store of electrical energy generated by the vehicle’s charging system, such as the alternator. While the engine is running, the alternator generates power to recharge the battery, which is then used to provide power when the engine is turned off.

Stabilizes the Car’s Electrical Voltage

A car battery also helps maintain the stability of the electrical voltage in the vehicle system. It does this by absorbing voltage fluctuations generated by the alternator so that the vehicle’s electrical system remains in a stable condition.

With these functions, the car battery is one of the important components in the vehicle’s electrical system and plays a crucial role in maintaining the overall performance and functionality of the vehicle.

How a Car Battery Works

The way a car battery works involves a series of chemical processes that occur within the battery cells to generate and store electrical energy. Here’s a general breakdown of how a car battery works:

Chemical Reaction

A car battery usually consists of several cells, and each cell contains two electrodes: a positive electrode (anode) and a negative electrode (cathode). These electrodes are submerged in an electrolyte, which can be a sulfuric acid solution in a wet battery or an electrolyte gel in a gel battery.

Electrochemical Charge

When a battery is recharged or in full condition, the electrode-anode is made of tin oxide and the electrode-cathode of lead. When the battery is used and charged, the cathode-electrode releases electrons, while the anode-electrode accepts electrons. This reaction causes chemical changes in the battery cell.

Electric Current Generation

When a battery is connected to an electrical load, such as a lamp or ignition system, electrons move from the anode to the cathode through an external circuit, while ions in the electrolyte move from the anode to the cathode through an internal circuit. This process generates an electric current that is used to power the vehicle’s electronic devices.

Reverse Reaction

When a battery is used and its charge is depleted, the chemical reaction in the battery cell reverses. The electrode-anode accepts electrons and the electrode-cathode releases electrons. This means that the battery is depleted, and if not recharged, will not be able to provide additional electrical energy.


While the vehicle is running, the charging system, such as the alternator, generates energy to recharge the car battery. This charging process changes the chemical reaction in the battery cell so that the electrode-anode becomes negative and the electrode-cathode becomes positive, ready to be used again to provide electrical energy.

In this way, the car battery serves as a store of electrical energy that can be accessed when needed to power the starter motor, provide power when the engine is off, and supply power to the vehicle’s electrical system.

Importance of Car Battery Cashing

Charging or recharging a car battery, often called “charging” or “recharging”, is an important process in vehicle maintenance. Here are some reasons why it is important to recharge the car battery regularly:

Maintains Optimal Performance

A fully charged battery has the maximum capacity to provide the electrical power required by the vehicle’s systems. By recharging the battery regularly, you ensure that it remains in optimal condition and can generate enough power to drive the starter motor, lighting system, and other vehicle electrical components.

Preventing Vehicle Electrical System Damage

If a vehicle battery is not recharged regularly, the power available to the vehicle’s electrical system will decrease over time. This can lead to insufficient voltage to operate the vehicle’s electronic devices, which in turn can damage electrical components such as the vehicle’s computer, ignition system, or navigation system.

Avoiding Battery Damage

Car batteries that are not regularly recharged can experience over-discharge, which can damage the battery cells and shorten its lifespan. By recharging the battery regularly, you can prevent over-discharge and extend the life of the battery.

Maintaining Alternator Performance

A vehicle’s alternator is responsible for generating power to recharge the battery and providing electrical power to vehicle systems while the engine is running. By recharging the battery regularly, you help maintain the alternator’s performance and prevent damage to the vehicle’s charging components.

Emergency Preparedness

Having a fully charged battery is important in emergencies when the vehicle has to be left for long periods of time, such as when camping or in extreme cold weather. A fully charged battery will ensure that the vehicle can be restarted when needed.

As such, regularly recharging the car battery is an important part of routine vehicle maintenance to ensure optimal performance and prevent damage to the vehicle’s electrical system.

In maintaining your vehicle, car battery management is a very important aspect. By keeping your car battery fully charged and in optimal condition, you can ensure stable performance of the vehicle’s electrical system and prevent the possibility of unwanted damage.

To help you manage your vehicle maintenance, we recommend using TransTRACK’s Vehicle Maintenance System. This system provides a complete solution for tracking vehicle maintenance schedules, including regular car battery recharging. With its advanced features, you can monitor car battery health, receive timely maintenance notifications, and optimize your vehicle’s performance.

Don’t let your car battery become an annoying problem. Get full control over your vehicle maintenance with the  Vehicle Maintenance System from TransTRACK today! With TransTRACK, you can ensure that your vehicle is always ready for a trouble-free journey, and you can drive more confidently and safely.


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