Method of automobile battery repair and length of life of automobile battery

（One）Battery testing

1, check battery appearance status:

Check whether the battery is in good shape. Check whether the battery shell is protruding, leaking at night, breaking, battery terminal corrosion, etc.. If there is such a phenomenon, the battery has been necrotic;

2, check whether the battery voltage is normal:

1 When the charge is carried out(two hours later), the voltage of each single battery is tested three times, each time it is separated by 20 minutes. If there is a single battery with a voltage of more than 15 V and less than 13 V, it indicates that the battery is in trouble.;

2 When the discharge is carried out, the voltage of each single battery is measured three times with a multi-meter, each interval of 10 minutes. If the voltage of a single battery falls faster than that of the other batteries, and it is lower than 10V, This battery discharge time is the shortest, So this battery is the problem battery.

3 Test the static voltage(float) of a single battery. When the voltage is zero, there are two possibilities: one is that the battery is completely disconnected, the circuit is blocked, and the voltage is zero; The other is that the battery is placed too long and the voltage is as low as 1-2 V, or even zero.

3, check whether the battery electrolyte "water loss", black:

Check whether the electrolyte has deteriorated or "lost water". After charging the battery for 3-6 hours, touch the side of each battery shell with a hand touch. If the battery is hot and hot, the battery has necrosis; If it is only hot, the temperature is about 40 degrees. At the same time, the charger has been running a red light when charging, indicating that the battery is seriously "losing water"; You can also open the lid of the battery and check the "water loss" state.

Whether the electrolyte is black or not can directly determine whether the battery plate is good or bad. If you open the lid on the battery, you can see that there are six garden holes and check the color of the electrolyte in each hole. If it is black, it means that the lead powder of the polar plate has fallen off and this battery is dead.

（Two）. Bottle Repair

1, Pulse repair method:

The better way to eliminate vulcanization is to use pulse repair. When repairing the battery, the instantaneous voltage of the pulse is generally based on the functional needs of the product. The instantaneous voltage adopted is between 60V and 300V. For example, the product pulse voltage value used for battery life extension is not too large. Especially because the pulse voltage value of the battery repair product can be large(if the pulse voltage value is too large, it will cause damage to the battery plate), the pulse voltage is high, the battery repair time is short, the pulse voltage is low, and the battery repair time is relatively long. Long, Although the pulse instantaneous voltage is high, the average voltage is not high, it is not harmful to the human body and is very safe. In terms of solid physics, any insulating layer can be broken at a sufficiently high voltage. Once the insulating layer is penetrated, the thick lead sulfate will appear conductive. If an instant high voltage is applied to a high resistivity insulation, it can also penetrate a large lead sulfate crystal. If this high voltage is short enough and is limited in flow, the charging current is not large enough to form a large amount of gas. The strong gas resolution of the battery is related to the charging current and the charging time. If the pulse width is short enough and the occupancy ratio is large enough, the micro-charging that occurs at the same time can not be enough to form the gas. In this way, Pulse elimination vulcanization is achieved.

Here are special pulse generators on the market, but pay attention to the one that works well. The resonance between the pulse and the battery plate is very important, which depends on the pulse frequency and the width and width. If the pulse frequency and amplitude are not enough, the effect of eliminating the crystallization of sulfuric acid will not be achieved. If the frequency and amplitude are too large, the vulcanization will be eliminated and the damage will be eliminated. The electrode plate has a gassing phenomenon; at the same time, there are many kinds of pulse waveforms, which can be displayed on the oscilloscope. A good pulse wave can effectively break down the insulating layer under the premise of the non-destructive battery, and the pulverized sulfuric acid crystal powder is reduced in the electrolyte. This is like the fact that people are rubbing stones, facing a large stone, is it effective with artichokes, or is it effective with hoes?

2, strong power repair method:

The method of strong electric repair is to take the method of lasting high voltage or large current repair battery when charging, and it is mostly used when the pulse repair method is not effective. First, high voltage's repair method: This method mainly uses a charging voltage of 1.3-1 .5 times the nominal voltage of the battery to repair the battery, such as a 36V battery using a 48V charger under the condition that the charging current is unchanged or close. Charge, Charge time to master control, not easy to be too long, otherwise the battery will be heated by gas. This method has a certain repair effect on batteries with short circuit and low softening degree, but it is improper to use, and it can also cause damage to the pressure point of the battery plate. Second, the high-current repair method: This method mainly uses a charging current of 1.5-2 .0 times higher than the normal charging current to repair the battery. For example, the 20AH battery uses a 3-4A charger for charging, with the advantages and disadvantages of the "high voltage repair method". The same.

3, full charge full discharge repair method:

Full charge full discharge repair method is a method for the battery to be completely charged and then completely discharged to repair the battery. Full charge total discharge repair method is mainly to repair the battery with mild damage. At the same time, this method can effectively activate the deep active substance of the battery and increase the battery capacity. For batteries with mild vulcanization and batteries with higher internal resistance, the key to this method is that the discharge must be sufficient, and that each single battery must be fully discharged individually, fully charged 1-2 times, and the battery capacity can generally be improved. Full charge full discharge repair method must not be used frequently, at least once every six months, at most once every three months.

4, water repair method:

The "water loss" of the battery can be repaired by adding water, and its purpose is to dilute the elevated concentration of sulfuric acid for normal electrolytic reaction. The method of water replenishment is relatively simple. Just open the top cover of the battery, you can see six round holes, inject a certain amount of distilled water into each round hole, and soak it for more than 24 hours. Water replenishment can only supplement distilled water and can not be added to other components of water, including pure water, because other components of water have various metal molecules, which can easily cause self-discharge and damage the battery after being added to the battery.

5, re-allocation group repair method:

Electric vehicle cells are generally batteries made up of several cells in series. Cell damage is multifaceted. It is possible that the cells will have several damage at the same time: For vulcanized batteries, the effect of repair is better; However, for the plate softening and broken batteries, it can be repaired immediately. Because it is a physical hard injury, the reuse value is not great, and the repair time is also very short, and the effect of repair will be even worse. The best way to do that is to replace the little value of the battery with "old(replaced with old batteries with more than 80 % capacity)" and remix it with the remaining batteries.

How long is the life of a car battery?

The normal service life varies from 1 to 8 years, which is very much related to the situation of the vehicle. It can be used for more than 3 years in the case of normal charging of the vehicle generator and no leakage of electrical appliances. Car batteries are designed to operate in their highly efficient temperate regions. Extreme weather conditions, especially cold weather, have affected one of life's batteries. The resulting energy battery is a result, a chemical reaction. How much temperature increases and how much energy it takes to initiate this chemical reaction. As a result, the required energy battery exceeds the cost to start leaving. The car that runs consistently in this climate is destined to shorten your life.

The page contains the contents of the machine translation.