Keyword search: battery plant , lithium battery factory , power bank works , lifepo4 battery mill , lithium forklift battery manufacturer

Dry batteries can be filled with battery water.

Consumers usually buy dry batteries in a dry state of charge, which means that the electrode plates in the battery have an electric charge. Simply follow the manufacturer's instructions or guidance, add a certain concentration of sulfuric acid solution or battery water, and charge it at the same time to activate the dry state battery. The water density of the battery after charging should be the density recommended by the manufacturer. If not, pure water or sulfuric acid should be added for fine-tuning.

After completing the above steps, the battery can be used normally.

During use, be careful not to overcharge or discharge, and not to run out of liquid, all of which have a significant impact on the battery's lifespan.

This popular post on WeChat Moments states that injecting battery water into an old electric vehicle battery through a syringe for charging can extend the battery life. The post provides a detailed list of seven steps for specific operations, which only require a screwdriver, an electrician's pliers, a hair dryer, and a bottle of battery water sold at a hardware store for two yuan per bottle. As of February 8th, the reporter saw that the repost volume of the post has reached over 100000 and has been liked by nearly 3000 people.

Many netizens have expressed that this is a blessing for electric vehicle users. Finally, there is no need to change the battery frequently. The problem can be solved for two yuan, and it is worth the trouble. Some netizens also hold a skeptical attitude towards this. Netizen @ Haitian Huiying: "Filling up the battery with water before charging, that's an explosive rhythm!" One of the netizens said they have tried, "It's completely useless. It has been extended for less than a week, completely scrapped. I tell you, it will definitely not be the same as new."

On February 6th at 8:00 am, during the morning rush hour, at the Sports Road intersection in the southern inner ring of the provincial city, the reporter randomly interviewed ten citizens riding electric bikes. Six of them stated that this move was not scientific and would not be attempted. "Is this fake? If it's true, wouldn't electric vehicle battery manufacturers be able to close their doors?" A citizen surnamed Li expressed doubt. However, some citizens expressed interest in trying it out: "Since there is such a statement, I think it should be feasible. When my battery pack is about to retire, I will try it out. It's best if it works, but if it doesn't, I'll throw away my old battery anyway."

experiment

The old battery with added battery water experiences a faster voltage drop during discharge

On February 6th at 9:00 am, the reporter arrived at an electric vehicle repair shop located at the intersection of Sports Road Wangcun South Street, with a pre purchased battery water of two yuan from the auto parts city and a 20ml syringe purchased from a pharmacy.

In order to make a comparison, with the help of maintenance technician Guo Zhipeng, the reporter found four old batteries with a model of 48V20A that have been in use for a year and a half. They were paired in pairs. Group A added battery water, while Group B did not make any changes. They were charged separately before discharging, and the reliability of the post was judged based on the duration of discharge.

Before the experiment, the reporter measured the voltage of four batteries using a multimeter, and both groups showed around 10.6 volts. Master Guo said that when the battery voltage reaches 10.5 volts, it is in an undervoltage state. At this time, the electric vehicle will automatically cut off power, and the highest voltage displayed on the new battery is around 13.5 volts.

Firstly, the reporter and Mr. Guo used a screwdriver to remove the battery caps of Group A batteries. After opening the caps, they did indeed discover the six caps mentioned in the post. Subsequently, the reporter used electrician pliers to open the six bottle caps and saw a small opening under each cap. Next, according to the method in the post, the reporter used a syringe to inject battery water into the battery, adding about 20 milliliters to each small opening to fill it up.

The reporter covered the six caps, then closed the battery caps. After sealing the caps, the batteries were wiped dry and the same operation was performed on the other battery in group A.

Master Guo will simulate electric vehicle charging with four batteries. After eight hours of continuous charging, the battery shows full charge. Then he used a simple method of heat energy consumption to discharge it. As shown in the post, after fully charging, the battery should be fully charged and then fully charged.

On February 7th, the reporter and Mr. Guo will measure the four fully charged batteries again. It was found that the voltage displayed on Group A batteries with added battery water was 12.8 volts and 12.7 volts, respectively; The voltage of the B group battery without any added batteries is actually higher, displayed as 13.3 volts and 13.1 volts.

Subsequently, with the same electrical energy consumption operation, the voltage drop rate of Group A was significantly faster than that of Group B. After about ten minutes of discharge operation, the battery voltage of Group A decreased to 11.3 volts and 11 volts respectively; Group B, displayed as 12.4 volts and 12.1 volts. Forty minutes later, the voltage of Group A is displayed as 10.7 volts and 10.5 volts; At this time, Group B is 11.2 volts and 10.9 volts. The experimental conclusion is obviously inconsistent with the claim in the post that the battery looks completely new after adding battery water and charging.

Clarify doubts

At present, most batteries on the market are maintenance free, and this method is not applicable

"For maintainable batteries, this method can extend their service life. If the situation is good, they can be used for a month, but if it is not good, they will become ineffective in a week." Guo Zhipeng told reporters that a few years ago, most electric vehicle batteries on the market were maintainable, and this method can play a slow and urgent role. However, after adding liquid two or three times, the battery is completely scrapped. At present, the batteries of electric vehicles on the market are maintenance free, and this method is not applicable, and may even shorten the battery life: "Because the battery water is a sulfuric acid diluent, if the battery is filled up with battery water, the battery water will exceed the connecting plate. During charging, boiling sulfuric acid will overflow, corrode the pile head of the welding wire, causing the pile head to rot and the battery to be damaged."

"Previously, batteries were mostly maintainable, and we sometimes operated like this for only ten yuan per maintenance. However, diluted sulfuric acid has a corrosive effect on the human body and it can be troublesome to fix it on our own." Yang, the owner of another electric vehicle repair shop on Sports Road, told reporters that besides looking at the type of battery, we also need to look at the degree of damage to the battery. "If it has been used for two or three years, it is best to replace it with a new one." "The batteries of the battery are all sold by group, with a set of four yuan, different models and brands, and different prices. The cheapest price is also more than 300 yuan. Two yuan per bottle of battery water can make the battery look brand new, and just thinking about it, you know it's not reliable!" Mr. Yang has been working in repairing electric vehicles for nearly 10 years, and he told reporters that this method is slow and effective, but cannot solve practical problems. "If the battery's storage capacity decreases after two years of use, even adding water to the battery will not be effective." As for when a new battery needs to be replaced, Mr. Yang said, "A new battery like 48V20A can run more than 50 kilometers when fully charged. If an electric vehicle can only run for about 20 minutes after charging for seven or eight hours, it needs to be replaced!"!

It is necessary to add water. The lead plate of a water filled battery is soaked in the electrolyte, while the lead plate of a maintenance free battery is wrapped in something like cotton, which is filled with electrolyte. If the battery is used for a long time, the electrolyte will definitely be insufficient and should be replenished. When the electrolyte inside is insufficient, the battery will heat up when charging, and if it is used for a long time, it will be scrapped

I am a battery repairer. If you don't want to maintain the battery regularly, then you can buy a maintenance free battery that doesn't add water. If you want to buy a battery with a heavy electrode plate and a long lifespan, you can buy a battery with added liquid. I have compared these two types of batteries, and it is obvious that the electrode plate with added liquid is larger and thicker than that without added liquid. The only drawback is that you need to check regularly for a shortage of electrolyte, but if maintained properly, The service life is significantly longer than that of maintenance free ones.

Batteries are divided into rich liquid batteries and maintenance free batteries. Rich liquid batteries can see the internal liquid visually through their appearance, while maintenance free batteries have an opaque outer shell that cannot see the internal liquid. However, they also require liquid addition because lead-acid batteries, as the name suggests, only use lead plates and electrolytes to generate chemical energy for input and output of electrical energy.

Electric vehicle batteries are poor electrolyte batteries, and the electrolyte cannot be seen inside. The electrolyte has been adsorbed into the partition, making it difficult to completely replace the electrolyte. The main reason for replacing the electrolyte is that the purity of the electrolyte used in poor electrolyte batteries is very high, which is higher than that of purchased or self-made ones. The electrolyte for electric vehicles usually has a dilute sulfuric acid capacity with a specific gravity of 1.30-1.34. If you want to prepare it yourself, you can dilute the sulfuric acid and measure the specific gravity at the same time. After adding it, the specific gravity when fully charged is generally around 1.37. The feasibility of battery repair depends on the battery's own situation, as there are many types of battery damage, including hardware damage, software damage, or end of life. Most batteries on the market can be repaired, Some batteries can be repaired first and then repaired to achieve an ideal state.

Lithium ForkLift Batteries ,Ensure Quality

Our lithium battery production line has a complete and scientific quality management system

Ensure the product quality of lithium batteries

Years of experience in producing lithium forklift batteries

Focus on the production of lithium batteries

WE PROMISE TO MAKE EVERY LITHIUM BATTERY WELL

We have a comprehensive explanation of lithium batteries

QUALIFICATION CERTIFICATE

THE QUALITY OF COMPLIANCE PROVIDES GUARANTEE FOR CUSTOMERS

MULTIPLE QUALIFICATION CERTIFICATES TO ENSURE STABLE PRODUCT QUALITY

Providing customers with professional and assured products is the guarantee of our continuous progress.

Applicable brands of our products