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Activation of electric vehicle batteries, now known as electric vehicle battery repair, involves specific methods such as: how to activate electric vehicle batteries? The method of using high current charging to dissolve large lead sulfate crystals by generating negative resistance breakdown. In the experiment, it was found that this method of eliminating vulcanization can only achieve temporary effects, and it will bring about aggravated water loss and softening of the positive electrode plate during the process of eliminating vulcanization, causing serious damage to the battery life and making it difficult to use. How to activate the tram battery? The negative pulse method has been applied for more than 30 years now. The principle is to add negative pulses during the charging process, which has an effect on reducing the temperature rise of the battery. However, the repair effect on "vulcanization" is not obvious, with a repair rate of 20%. Currently, it is widely used and is a phased out product, often priced at about 1300-1600 yuan. How to activate electric car batteries? 

Adding active agents using chemical methods to eliminate lead sulfate crystals not only increases the cost and internal resistance of the battery, but also changes the original structure of the electrolyte. After repair, the service life is shorter, and the repair rate is about 45%. How to activate the tram battery? High frequency pulses use pulse waves to convert the lead sulfate crystal back into a small and highly electrochemical reversible lead sulfate, allowing it to participate in the chemical reactions of charge and discharge normally, with a repair rate of about 60%. The negative pulse effect is better. However, due to its long repair time, which takes tens of hours or even a week, its efficiency is low, and it is not good for repairing severely sulfurized batteries. However, the technology is simple, and many manufacturers are currently using it again, with a market price of about 2000 yuan. How to activate the tram battery? The combination resonant pulse reasonably controls and repairs the forefront of the pulse, using the method of high order harmonics in the charging pulse and large lead sulfate crystal resonance to eliminate battery vulcanization during the repair process. This method can achieve high repair efficiency and minimal damage to the battery, greatly reducing the pollution of lead-acid batteries to the environment, prolonging battery life, and reducing the huge cost of battery replacement for users. Therefore, the prospect is broad. The disadvantages are complex equipment technology, high cost, and high requirements for pulse front control and resonance technology. 

The market price is approximately 2200-3800 yuan for Type 4 (independent 4 charging and discharging) and 8500-15000 yuan for Type 20 (independent 20 charging and discharging). The principle and method of activating the composite resonance method to eliminate vulcanization in electric vehicle batteries. Although we know that the main method to prevent battery vulcanization is to prevent the battery from not charging and discharging in a timely manner, this phenomenon still occurs frequently in practical use. Previously, this situation was considered "irreversible". The traditional processing method is relatively complex, using high current charging; Active agent replacement; Positive and negative pulse charging and other methods have a low success rate in repairing and have certain negative effects. The current method is the composite pulse repair method, which can turn "irreversible" into "reversible" and basically does not cause any damage to the battery electrode plate. This is a significant breakthrough in the lead-acid battery industry. The principle of pulse repair is quite complex. Firstly, any crystal has a resonant frequency after its molecular structure is determined, and this resonant frequency is related to the size of the crystal. The larger the size of the crystal, the lower the resonant frequency. If the charging uses steep front pulse, frequency analysis using Fourier series can determine that the pulse will produce rich harmonic components, with large amplitude in the low-frequency part and small amplitude in the high-frequency part. This way, the energy obtained by the large lead sulfate crystal is greater, while the energy obtained by the small lead sulfate crystal is smaller, resulting in a larger amplitude of resonance in the large lead sulfate crystal. It is easier to dissolve than the small lead sulfate crystal during positive pulse charging. The so-called "smashing" of coarse lead sulfate crystals. Properly controlling the pulse current value and charging the positive electrode plate with a smaller current density will basically not cause damage to the positive electrode plate. For sealed batteries, the instantaneous charging voltage allows the oxygen generated by the electrode plate to be absorbed on the negative electrode plate through oxygen cycling, and the battery will not lose water. So this is a "no loss" repair that distinguishes it from other repair methods. How to activate the electric car battery? 

A high-frequency positive and negative pulse generator is used to continuously generate high and low frequency conversion pulses on the battery. Firstly, it can have the conditions to dissolve large lead sulfate, and secondly, pulse disturbance can destroy the conditions for the continued growth of large lead sulfate. This method overcomes the limitations of previous repair techniques, has the advantages of being fast, about 8-12 hours, high repair efficiency, low power consumption, and will not cause battery dehydration, positive electrode plate softening, and change the original structure of the electrolyte. The repair effect on severely sulfurized lead-acid batteries is 3-4 times that of the past, with a repair rate of over 90%. The application of this technology reduces the number of scrapped batteries How to activate the tram battery:

1. Unscrew the plastic cover of each compartment of the battery and check the internal liquid level. Insufficient filling to the normal liquid level.

2. 2. Use a multimeter to check if the voltage in each cell is close and if there is any reverse polarity. Is the total voltage above 10.8 volts. If individual cells are found to have low voltage or reverse polarity, they should be supplemented or corrected separately for polarity.

3. 3. It is best to use a charger with adjustable voltage and current, and a voltage and current display meter. Connect the connecting wires, turn on the power, and observe the changes in voltage and current. If it reaches 14 volts and there is still no charging current, continue to increase the voltage to 16 volts and wait for

4. 4. As long as there is current, it indicates activation. Slowly wait for the current to increase. When the current exceeds one tenth of the capacity, such as when the battery exceeds 2.4 amperes at 24 amperes, reduce the voltage and adjust the current to decrease to 2.4 amperes. Wait until the voltage drops below 14 volts and there is still 2.4 amperes of current, activation successful, and entering the charging phase. 5. This type of long-term battery usually needs to be charged for more than 14 hours, and the maximum charging voltage after charging does not exceed 14.9 volts.

The correct use and charging method of batteries:

 (1) It is correct to use and charge batteries frequently. Basically, it means to charge them every day after riding. However, there is a problem here that if your battery can run 30 kilometers, run 5 kilometers or 10 kilometers, and then charge it, it may not be beneficial for the battery because when the battery is fully charged, there will definitely be gas leakage, which is generated by the decomposition of water in the electrolyte, resulting in water loss. Frequent charging in this way increases the number of times the battery loses water, and the battery will quickly enter the expiration period. So a good method is if you don't ride an electric bike the next day, it's best to fully charge it. However, after riding 5 or 10 kilometers, if you still have enough distance the next day, it's best to wait until the next day before charging. This way, the water loss of the battery will be reduced, and the battery life will be extended.

 (2) In addition, for some batteries that can run about 30km, but ride about 7km or 8km every day, it is better not to wait for the third day or the fourth day when the battery is completely recharged, and charge the battery when the remaining half of the battery power is less than half, because the battery is stored when the battery power is insufficient, which is easy to produce vulcanization.

 (3) In addition, every month, it is best to fully charge the battery at once, that is, to ride the battery to undervoltage, discharge it deeply once, and then charge the battery, which can also extend its service life.

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