How to repair and activate lead-acid batteries

1. Prepare syringes and distilled water (also in cheap barrels).

2. The battery is discharged to a single 10.5V.

3. Open the battery cover and leather cap.

4. Add about 10 ml of water to each well with a syringe, and add 15 ml of high voltage battery.

5. Cover the leather cap and top cover.

6. Connect the battery line and charge it with the charger.

After several times of charging and discharging, the performance of the battery can be restored a lot.

1. Pulse repair method: high-frequency positive and negative pulse generator is used to continuously generate high and low frequency conversion pulses for the battery. One of them can have the condition of dissolving large lead sulfate, and the other is pulse disturbance, which destroys the condition of continuous growth of large lead sulfate. This method overcomes the limitations of the previous repair technology, has a rapidity, about 8-12 hours, high repair efficiency, low power consumption, does not cause the battery to lose water, the positive plate softens and changes the original structure of the electrolyte, etc. The repair effect of severely sulfurized lead-acid batteries is 3 to 4 times that of the past, and the repair rate is over 90%. The application of this technology reduces the amount of scrapped batteries.

2. Strong electric repair method: The strong electric repair method is a method of repairing the battery by using a persistent high voltage or a large current during charging, and is often used when the effect of the pulse repair method is not obvious. First, the high voltage repair method: This method is mainly to repair the battery with a charging voltage of 1.3-1.5 times the nominal voltage of the battery. For example, the 36V battery is charged by a 48V charger under the condition that the charging current is constant or close. The charging time should be measured and measured, and it is not easy to be too long, otherwise the battery will be heated due to gassing. This method has a certain repairing effect on a battery with short circuit and low softening of the electrode plate, but improper use may also cause damage to the pressure plate of the battery plate. Second, the high current repair method: This method is mainly to use a charging current 1.5-2.0 times higher than the usual charging current to repair the battery, such as 20AH battery using 3-4A charger for charging, pros and cons and "high voltage repair the law is the same.

3. Full charge full discharge repair method: Full charge full discharge repair method is a method of repairing the battery after the battery is fully charged and then completely discharged. The full charge and full discharge repair method mainly has a certain repairing effect on the battery with slight damage, and the method can also effectively activate the active substance in the deep layer of the battery and improve the battery capacity. Such as lightly vulcanized batteries, batteries with higher internal resistance, the key to this method is that the discharge must be sufficient, and the individual cells are fully discharged separately, fully charged and discharged 1-2 times, the capacity of the battery generally can be improved. Fully charged discharge repair method should not be used frequently, at least once every six months, and used up to three months.

4. Hydration repair method: the battery "water loss" can be repaired by the method of water replenishment the purpose is to dilute the concentration of sulfuric acid to carry out the electrolysis reaction. The hydration method is relatively simple. Just open the upper cover of the battery, you can see that there are six round-holes and inject a certain amount of distilled water into each round hole, and then soak for more than 24 hours. The hydration can only be supplemented with distilled water. It is not allowed to add water of other ingredients, including pure water. Because other components have various metal molecules in the water, it is easy to cause self-discharge and damage the battery after being added into the battery.

5, re-assembly repair method: electric vehicle battery is generally a battery pack made up of several batteries in series, battery damage is multi-faceted there may be several aspects of battery damage at the same time: for the vulcanized battery, after repair the effect is better; but for the softened and broken battery of the plate, it can be repaired immediately. Because it is a physical burn, the reuse value is not great, the use time after repair is also very short, and the effect of repair will be worse. . The best way is to replace the old battery with the repair value (replace the old battery with more than 80% capacity), and then re-group with the remaining batteries.

Generally speaking, the repair is only for batteries without quality problems. The main situation is battery vulcanization caused by overdischarge. 1. Use a silicon rectified charger to charge the current for 3-5 hours with a current of 20%, and then charge it with a battery of 10 minutes for more than 12 hours. The battery can basically be repaired; 2. It is also used by 2 times. The capacity of one-tenth of a large current is charged for 30 minutes, and then according to the above method, the method used depends on the actual condition of the battery. It is generally recommended to use the first method.

The electrode is mainly made of lead and its oxide, and the electrolyte is a battery of a sulfuric acid solution. English: Lead-acidbattery. In the discharge state, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; in the state of charge, the main components of the positive and negative electrodes are lead sulfate divided into exhaust battery and maintenance-free lead-acid battery.

The battery is mainly composed of a tubular positive plate, a negative plate, an electrolyte, a separator, a battery tank, a battery cover, a pole, a liquid injection cover and the like. The electrode of the vented battery is composed of an oxide of lead and lead, and the electrolyte is an aqueous solution of sulfuric acid. The main advantage is that the voltage is stable and the price is cheap; the disadvantage is that the specific energy is low (that is, the energy stored per kilogram of the battery), the service life is short, and the daily maintenance is frequent. Old-fashioned ordinary batteries generally have a life span of about 2 years, and it is necessary to regularly check the height of the electrolyte and add distilled water. However, with the development of technology, the life of lead-acid batteries has become longer and the maintenance is simpler.

Lead-acid battery charging method_How to repair lead-acid battery

Lead-acid battery classification

1) Ordinary battery; the plate of an ordinary battery is composed of oxides of lead and lead, and the electrolyte is an aqueous solution of sulfuric acid. Its main advantage is that the voltage is stable and the price is cheap; the disadvantage is that the specific energy is low (that is, the energy stored per kilogram of the battery), the service life is short, and the daily maintenance is frequent.

2) Dry-charged battery: Its full name is dry-charged lead-acid battery. Its main feature is that the negative plate has high storage capacity. In the completely dry state, it can save the obtained power within two years. When you just need to add the electrolyte, wait 20-30 minutes to use.

3) Maintenance-free battery: Maintenance-free battery due to its own structural advantages, the consumption of electrolyte is very small, and it is basically unnecessary to supplement distilled water during the service life. It also has the characteristics of shock resistance, high temperature resistance, small size and small self-discharge. The service life is generally twice that of a normal battery. There are also two kinds of maintenance-free batteries on the market: the first one does not require maintenance (adding replenishing liquid) after the one-time addition of electrolyte at the time of purchase; the other is that the battery itself has been charged with electrolyte and sealed. The user cannot add replenishing liquid at all.

Lead-acid batteries are available in 2 volt, 4 volt, 6 volt, 8 volt, 12 volt, 24 volt, and range from 200 mAh to 3000 ampere. The VRLA battery is a rechargeable battery based on AGM (Aspirating Glass Fiber Board) technology and a calcium grid. It has superior high current discharge characteristics and an extremely long service life. It does not need to add water during use.

Correct lead-acid battery charging method

1. Determine the rated voltage and rated capacity of the battery or battery pack. The rated voltage is used to determine the charging voltage and the rated capacity is used to determine the charging current.

About voltage: The easiest way is to read it from the tag; for example, the rated voltage of the CSB battery shown in Figure 1 below is 12V.

If the label is worn or not at all, it can be judged from the number of vent holes or safety valves that are round holes at the top of the battery that can be opened or opened. To be sure, all lead-acid batteries currently have venting holes. Each vent represents one unit, 2V, so the total voltage of the battery shown in the other figure is 24V because it has 12 vents.

About the capacity: can also be read from the label or calculated; in general, the label will indicate the rated voltage of the battery, as shown in Figure 3 PNP battery is marked as 65Ah, but the UPS battery is usually represented by W, as shown One shows 34W. For this kind of battery, the simple calculation method is the wattage divided by four, that is, 8.5Ah; but when it comes to Figure 2, there is no way, it can only be estimated according to the volume or importance. And the error is large, generally speaking, the 12V100Ah AGM battery weighs 30~35kg. Therefore, if the battery in Figure 2 weighs 500kg, it can be calculated that its capacity is about 700Ah.

The page contains the contents of the machine translation.