4 ways to charge the car battery

Why is car battery charging so important? We will explain 4 ways to charge the car battery. You must know how enjoyable it can be to listen to music in the car, or even how much safety can be achieved by turning on the lights of the car in the darkness of the road. The heat of the car heater in the cold winter, the coolness of the air conditioner in the heart of the summer are other details of the cars that if they don’t work well, it will definitely make the time of the passenger of the car bitter. Using these devices all depends on the car battery; Even starting and moving initially. So it is not necessary to say how important it is to have a car battery and charge it .

Now imagine that you are on the way to travel or have a business appointment that you have counted down the days for, and on the exact same day your car does not start or breaks down, what is the solution? This happens to everyone and is completely normal. Also, sometimes, due to the fact that the car light stays on even though your car battery life is not over, buying a car battery may not be an economical and correct decision and you need to charge it. In the rest of this article from the articles of Electro Sanat Tehran’s website We are going to introduce to you various methods of charging the car battery so that you can restart and continue moving in the shortest possible time, so please stay with us until the end of this article.

Battery charging using a car battery charger

Car battery charger is the safest and best method of recharging. Creating the least risk is one of the advantages of this method. Different types of charger devices with different charging speeds such as fast, slow and very slow are available in the market.

The more intense the current of the charger, the faster the battery is charged. But generally it is safer to charge the battery with a gentle current and it will not damage the battery. With the car battery charger, you can charge the battery using home electricity when the battery is not installed on the car.

A battery charger can make old and worn out batteries re-charged and usable in some cases. The important thing is that it is necessary to charge the battery when it has 2 amps left in it.

Car battery charger usage guide

  1. Remove the two car wires from the battery terminals and disconnect the battery. All electrical systems of the car are turned off with this method.
  2. Check the battery electrolytes. If necessary, pour more electrolyte (distilled water) into the battery. Then clean the battery terminals.
  3. Connect the positive wire of the charger to the positive terminal of the battery and connect the negative wire of the device to the negative terminal of the battery.
  4. Then connect the device to the electricity, if your charger does not have the ability to automatically adjust the current intensity, you must manually adjust the current. The intensity of the charging current is between 3 and 10% of the battery capacity, of which 5% is the best.

It is important to mention that the slow and slow flow will lead to longer life and no damage to the battery.

Important note: If your car’s battery is of the sealed type, do not charge it with a current of more than twenty five amperes.

The time required to charge the car battery according to the power of the charger

Car batteries usually have a minimum capacity of 48 amp hours. This means that a 12 volt car battery rated at 48 amp hours can provide 1 amp for 48 hours or 2 amps for 24 hours. This also means that the battery can supply 8 amps for 6 hours under ideal working conditions.

Most battery chargers send about 2 amps of energy per hour to your battery. At this rate, it usually takes more than 24 hours to fully charge the car’s battery, which has a capacity of 48 amp hours. Of course, if you’re dealing with a half-empty battery, the charging time will vary depending on the state of the battery and how much charge is left. The advantage of this relatively low charging rate (2 amps) is that the possibility of overcharging the battery is less. Overcharging the battery can reduce its overall lifespan.

You can also find faster charging options. Using a charger with a higher output will result in a faster charging time. However, fast or ultra-fast charging is not recommended, as it can cause irreparable damage to the battery plates. It is not recommended to charge the car battery with more than 20 amps. A 10A charger will give you a faster charge and is still relatively safe, although you should be careful to remove the charger as soon as the battery is full.

The car battery is an important component for the performance of your car’s engine. Therefore, it is possible to determine how many amps are needed to charge a car battery by subtracting the current capacity from the total battery capacity. Once you know how many amps your battery needs, divide it by the amps of the charger. The result is the number of hours it takes to charge.

Battery charging using car alternator

The car alternator is one of the parts that generates electricity and this energy can recharge the battery. Suppose the battery is discharged while driving, in this case, if the alternator is healthy, it can charge the battery again according to the electricity production it has. But if the car shuts off while driving, the battery is empty and the alternator is not working properly. .

A broken belt can be a sign of alternator failure, which will definitely cause the battery to not receive electricity, but if the alternator was healthy, then it can be said that your battery has lost its ability to be used.

The duration of charging with a dynamo is one to ten hours for new batteries and twenty hours for older batteries.

You can also leave the car on for half an hour or a little more to charge the battery by the alternator .

Solar charger

You must have heard of using sunlight to generate energy, the solar charger works exactly according to this technology. A solar charger is a solar panel in different types with different volts that converts sunlight into electricity. .

You can charge it by connecting the device’s pliers to the car’s battery pins. Sensitive situations and lack of access to mechanics or driving in the desert require a solar charger to be one of the essential tools for every driver. Suppose in cold weather, the car’s snow wiper does not work well, or even the car’s heater and lights, you will not be able to ask for any help, the presence of a solar charger in this situation can be a great help in saving your life. .

The first point is to place the charger in front of the light to save energy so that you can charge it when necessary. To use this charger, just put it on the surface that receives the most sunlight and connect the pliers of the solar charger device to the battery pins of your car. Be sure to remove the clamps connected to the car battery before connecting the pliers .

One of the advantages of solar charger is the possibility of using it in different places or away from the city .

It is worth noting that in order to shorten the battery charging time with a solar charger, avoid deep discharge of the battery. Note that these chargers need twelve hours to absorb energy. Also, the higher the power of the solar charger, the higher the battery charging speed .

Charging using the battery-to-battery method

One of the common ways to recharge a battery is to connect a dead battery to the battery of another car. You can charge the battery by placing the cars next to each other with a short and close distance but not stuck together. .

First, turn off both cars and raise the hood. Connect the positive and colored clamps on the positive end of both batteries. Double sided clamp  The cable  should be the same color, so make sure you connect the positive terminal of the battery to the same side of the cable. Then connect the black negative clamp to the negative terminal of the battery. If you have done these steps correctly, there will be no spark. .

In a dead car, find a space away from the battery to attach the negative terminal to, such as on the engine block or a metal stand attached directly to the engine. So connect the two positive ends of the batteries together and the negative ends of the batteries to the metal part of the body or engine of the damaged car. Then turn on the damaged car to fully charge the battery .

If the only problem with the car is that the battery is empty, the car will turn on quickly after starting. If you can’t start properly, disconnect the negative cable from the damaged car and then make sure that the other cable clamps are connected properly. Reconnect the negative clamp to the engine block of the damaged vehicle and restart .

 If the cables become hot during these steps, they are unsuitable, so disconnect the cables immediately. After turning on the broken car, act in this way; Disconnect the negative cable from the engine block of the damaged car and then disconnect the negative cable from the healthy car. Finally, you can disconnect the positive cable from both cars. .

Important points from battery to battery :

  • When using this method, you must allow sufficient air flow to prevent sparking and ignition of the batteries.
  • Make sure to use high-quality and resistant cables in this method, if the cable used is thin, it will cause the heat to rise and cause a fire.
  • Using the right glasses to protect the eyes is one of the safety points that must be followed.

Charging using a laptop charger

The first thing to mention is that this method is like filling a lake with a faucet and it takes a lot of time. In the first step, you must be sure of the health of the battery so that you can get the desired result from this method. Note that the laptop or mobile charger cannot pass more current than the specified limit.

Regarding the appropriate time for charging, issues such as depth of charge, battery discharge and internal resistance of the battery are involved. So these tips can be effective in shortening or lengthening the battery charging time.

For this method, you need to remove the 2 wires of the laptop charger, i.e. positive and negative, and put the positive wire inside and connect the negative wire to the negative output part of the battery.

The pros and cons of the charger depend on the charger model. It is better to check the label on the charger.

If using an adapter higher than 12V, it is better to use a 12V lamp in series connection in the charger path. Stop charging when the lamp dims.

Frequently asked questions about car battery charging

When does the car battery need to be recharged?

After the initial charge, the battery does not need to be recharged unless the alternator is defective.

How long does it take to recharge a car battery?

It is not possible to specify the exact time. The time to recharge the battery depends on the amount of discharge, the type of charger, the power of the charger. Note that charging with high amperage will reduce battery life.

Why does the battery explode during charging?

Leakage of gases from the battery at the same time as there is a spark, a flame and a lit cigarette causes an explosion. Avoid flammable sources while charging.

Is it possible to use a charger with a higher amperage?

yes Some chargers are able to charge the car battery with an intensity of 3 to 10 amps. Using a charger with a higher output increases the charging time. However, fast or super fast charging is not recommended as it can cause irreparable damage to the battery plates.

For example, if a 2 amp battery charger can do this in 24 hours (48 amp hours in a car battery), using a 4 amp charger cuts the charging time in half.

summary

Article 4 ways to charge the car battery also ended. In this article, an attempt has been made to review and introduce safe and common methods for recharging the battery. It is better to do it once every six months Car battery test Take action and if the car battery charge is weak, charge the battery and check the car’s electrical system and alternator. Remember that low charge can be caused by: Car battery warranty It is not and you cannot use the warranty due to the low battery of the car .

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