The problem of freezing a car’s battery becomes relevant every season with the advent of severe frosts. As practice shows, it is easier to insure yourself against such problems than to get out of the situation every morning in a hurry to work or on other matters. But everything cannot be foreseen, and heating systems can fail at the most crucial moment. In this regard, the question arises: "How to revive the car battery ?" There are several approaches to resolving the situation, and in each case this or that option will be most effective.
Using a different battery
Not always at hand is a free working battery that will give a “cigarette” and thereby restore the functionality of the main unit, but in fact this is the easiest and fastest way to solve the problem. For example, you can turn to a neighbor for such help or ask nearby car owners - it depends on the capabilities and specific circumstances. Now the main question: "How to revive the car battery by" lighting "?" To do this, you should have in mind a wiring diagram for a specific unit by terminals. However, experienced motorists know the nuances of handling battery wiring by heart. Usually a procedure consists of four steps. First of all, a “lighting” wire is put on + the working unit. Further, the other end of the same cable is put on + the problem battery. Two “minus” connections are made in the same way, but you just have to start with a dead battery.
Awakening the main electronics in the car
It is possible that, for one reason or another, restoring the unit using another battery will not succeed. In such a situation, it makes sense to immediately launch all the heating systems available for activation. In a modern car, they should be enough to indirectly warm the electrolyte. For example, you can start heating seats, steering wheels, windows, stoves, etc. At the same time, the question of how to revive a car’s battery without a charger can be resolved by turning on optical devices. Head light, fog lights, side lights - these and other devices by themselves produce thermal radiation, not to mention the communications to which they are connected.
Using a launcher
A fairly progressive and relatively convenient way to defrost the battery is a very typical heater, which is located in the cooling system. However, it is not so important which heating system will ensure the activation of the feed element. More important is how it will work. For this, starting devices are provided that operate either by remote principle directly on commands from the user, or by an embedded program. That is, the question of how to revive the car’s battery, in this case, is shifted to electronics. It’s usual when the driver sets the heater with the starting device in the heating mode at certain intervals, after which he calmly leaves for home. But it is important to consider the disadvantages of such schemes. Firstly, one way or another, the heater will work from the same battery, that is, in the morning you can get a battery with a serious percentage of consumption. Secondly, the optimal mode of such heating will not be constant, but periodic, for example 15 minutes. out of 60. Such frequent warm-ups can adversely affect the electrochemical properties of the unit.
Direct launch attempts

It is impossible to exclude the likelihood of a completely typical start of the machine without third-party methods. However, here too, in order to increase the chances of success of the event, certain rules should be followed. For example, before starting, you need to turn off all energy-consuming electronics and equipment in the car. Next, the clutch is squeezed, and you can start trying the plant. In the case of injection engines, it is better not to touch the gas pedal. It should be prepared that the first attempts do not live up to expectations, but it will be wrong to refuse further actions, since the second and third series of launches most often occur in more favorable conditions. In the question of how to revive the car’s battery through serial engine starts, it is important to consider one nuance. In principle, the probability of a successful launch will be determined by the operation of the starter. If, as attempts are made, it starts spinning longer, then it makes sense to continue the procedure, and if it retains its behavior after 7-8 attempts, then it is probably better to stop.
What can not be done to revive the battery in the cold?
In general, it is advisable not to take any actions with the battery pack in the cold. Although many motorists share their successful charging experience at temperatures of the order of –30 ° C, manufacturers strongly recommend that the battery be taken to a warm place already at –20-25 ° C. True, it all depends on the specific model. If nevertheless there is a hopeless question about how to revive the car’s battery in cold weather away from the city, then it is best to turn to specialists for help. The fact is that even attempts to “light” in such conditions can provoke a block explosion.
If the reason is not in the cold
Any attempts to start a workable battery process may lead to nothing if the filling with the electrolyte is in an unsuitable state for operation. That is, even a low temperature is not a cause of a power supply failure, it simply lost its electrochemical properties. How to revive the old car battery in this case? First of all, it is necessary to ensure the heating of the battery. To do this, you can either activate the heating system in the car, or take the device to the house. Next, the battery is checked on voltage measuring instruments, and then charge attempts can be made. The result of such a check will be either a conclusion on the complete unsuitability of the device for work, or the need for repair.
How to prevent freezing of the battery?
The most common and recommended by experts method of preventing freezing of the battery is its transfer to the house at night. And there are two important nuances. Firstly, the procedure for removing and installing the unit should be carefully implemented, since liquid electrolyte can spill if the position of the case is violated. Secondly, the question of how to revive a car’s battery at home at room temperature is also important. Actually, you can not worry about the effectiveness of heating and do not use special tools. In this part, the main thing is to isolate the block itself from the place where people are.
Should I use additives?
Nowadays, any problem associated with the technical basis of the motor group can be corrected to one degree or another by modifiers. Transmission and engine oils are an example of this. There are special compounds that improve certain properties of the electrolyte. Most of them act to prevent the sulfation process, but there are also frost-resistant mixtures. The question of how to revive a car’s maintenance-free battery with additives is controversial. First of all, it must be said that for a unit that is already in a frozen state, they are not suitable. Their task is to prevent negative factors of battery interaction and low temperature. But before using such tools, it is necessary to familiarize yourself with the recommendations of the manufacturer of a particular model in terms of the use of modifying mixtures.
Conclusion
Many problems associated with the operation of the battery can be avoided even at the stage of its purchase. On the question of how to revive a dead car battery in conditions of remoteness from civilization, a lot will depend on the characteristics of the unit itself. Today, manufacturers produce special models that are initially equipped with enhanced protection against external influences. The most successful developments show an example of frost resistance of the active substance itself. At the same time, in contrast to the electrolyte improved by additives, such an electrochemical filling fully retains its working qualities, giving a sufficient charge in accordance with the standards.