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Low Battery Voltage-Causes, Fixing, and Limit Value

Jan 15, 2021   Pageview:55

As time has evolved, new technology has taken its place in the market. Now there are a different set of batteries available in the market which can be used for various applications and in different gadgets and electronics. But cars are running on batteries for a very long time, and there are many car owners who face issues with the battery of their cars.

Well, it is true that one of the most disappointing moments for a car lover is when they have a dead battery in their car. There can be many reasons attached to it, but you should take comfort in the fact that there are different possible ways by which you can fix the low battery voltage.

What causes low battery voltage?

There is absolutely no point of denying in the fact that over the last few years, the electronic content in cars and other vehicles has increased much time. Due to the increased use of electronic content, the battery and the charging system face a much higher load. It is extremely significant to mention that a low system voltage or a weak battery can cause different electronics problems.

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Acid stratification and low charge are two major causes of the low voltage battery or failure of a battery. According to the manufacturers, issues in the car batteries generally occurs in large and luxury cars that are designed to offer auxiliary features. When the car battery cause problems in the warranty period, it reduces customer satisfaction. Many reasons cause a malfunction in the battery, such as a factory defect, weak alternator, driving habits of the owner, deterioration of the battery plates, loss of electrolyte, and chemical breakdown in the connection of the battery, etc. The longevity of a lead-acid battery depends on various factors, which include heavy accessory power as well.

In the case of acid stratification, the electrolyte of the stratified battery focusses on its bottom, which turns the upper half of the battery in poor condition. Batteries generally stratify when they are kept at a low charge, i.e., below 80%; the performance of the battery faces issues by acid stratification. Therefore, make sure that during short-distance driving, electric heaters and running windshield should be avoided; otherwise, it may lead to acid stratification.

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How do you fix a low battery voltage?

When it comes to a car, there are many symptoms by which you can identify that the battery of the car is weak or may die in some time. It is always inconvenient to have a dead or weak battery, but you can look for some bad battery signals. Let's look at some of these symptoms so that you can take timely actions:

?Dim headlights:

When the battery of a car is about to fail, you can observe that all the electrical components of the car will not be able to work properly, and it starts with the headlights. Whenever you notice that your car's headlights are going dim or weaker than normal, consider it as a sign of a weak battery. Dim headlights reduce the safety of the driver as well.

?Weird sound while turning the key:

When the key is put to ignition, the car's battery sends current to the starter solenoid, which is also an electrical component of the car, to turn on the car. But in the case of a weak battery, there will be difficulty in this process because the electrical current sent to the starter solenoid becomes weak. Hence, when the starter receives insufficient power from the car battery, it makes a weird clicking noise. This is one of the common signals which indicates the failure of the car battery.

?Frequent Jumpstarts:

Car batteries are no different than your old phone batteries. As the batteries age, they somehow lose their capability to hold the charge for a very long period of time. If your battery is unable to hold the charge despite charging, then you might need to change it. In many cases, batteries face the issue of a jump-start; the reason for this can be premature wearing out of the battery. If this is happening with your car as well, then you must take a battery test and get it to replace.

Thankfully there are few methods which you can try in order to fix a low voltage or a dead battery. However, if you find that the battery often gets discharged, then you need to get a replacement. You can consider the following methods before that:

?Distilled Water:

Adding distilled water to the battery when the electrolyte level is low might work. With distilled water, you can submerge the battery plates and create a little reaction area. With this remedy, you can expect the engine to work for some time.

?Epsom Salt:

MgSO4 or magnesium sulfate can be purchased via any grocery store, drug store, or home gardening shop. When a stronger acid like Epsom salt is put into the electrolyte mix, you can expect the battery's chemical breakdown to get balanced. Take one part of the MgSO4 and three parts of warm water, mix both and then add the mixture to each cell; make sure that the plates are submerged by ? "to ? "electrolyte.

At what voltage is a battery dead?

When it comes to the lead-acid battery, traditionally, the average service life is approximately four to five years, and in extreme climates, the count generally decreases. Determining voltage is important in order to figure out the actual status of the battery. You can read the voltage of the battery, and according to the results ascertained, you can estimate the result. If the battery reads 11.7 V, then it a sign of worry; if the battery reads 12.4 V, then it is the right level of voltage; however, if the battery reads 12.9 V, then there are high risk or sulfating, and it can create different problems for the battery.


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