Keyword search: battery plant ,  lithium battery factory ,  power bank works ,  lifepo4 battery mill ,  Pallet Trucks LiFePO4 Battery,  LiFePO4 Pallet Trucks Battery,  Lithium Pallet Trucks Battery, 

The ability to repair a burnt battery in an electric vehicle depends on the specific situation.

1. Economically speaking, if there is a significant difference between the cost of battery repair and the cost of purchasing a new battery, and there is still a considerable service life after repair, it can be attempted. This should be a prerequisite for repair.

2. Except for broken grids, thermal runaway, plate decay (the professional term is softening, but the description of decay is more appropriate. It refers to the process of the entire plate becoming loose mud and the metal grid becoming non-metallic. The image understanding of active substance shedding is also softening), and batteries that have been mistakenly added sulfuric acid can all be repaired. If the battery is burned out and thermal runaway occurs, it cannot be repaired.

3. The maximum capacity for repair is determined by the integrity of the electrode plate. If the electrode plate has decayed by 45% and no thermal runaway has occurred, the maximum capacity for repair is 100% -45%=55%.

4. The decay of the positive electrode plate is usually formed during the charging process (related to the charger), while damage to the negative electrode plate indicates discharge problems (such as excessive discharge).

Repair method for broken battery:

1. Discharge the battery to 0V using a light bulb or electric stove wire, which means it is reset to zero and there is no electricity at all. It is best to discharge it one by one or in parallel. This work requires a certain amount of time, and you can also ride the bike until it cannot be ridden before discharging, which will be faster;

2. Open the battery cover and use a syringe to add dilute sulfuric acid electrolyte with a specific gravity of 1.3 to the battery exhaust hole until the rich solution is reached (full is also acceptable). Stop for 20 minutes;

3. Charge the battery filled with electrolyte!!! If it is a 20AH battery, a constant current charger with a range of 70V is used. Four batteries can be connected in series to charge simultaneously. Charge with a constant current of 1.5A for 24 hours without voltage limitation. Generally, the battery can be repaired to 80-90% new performance; If there is no charger, there is also a solution, which is to use the charger used for regular high-speed trains to charge. However, to charge a 20AH battery, a 10AH charger (with a current of generally 1.5A-1.8A) should be used. Only 2-3 batteries can be charged at a time, which can last for 20-24 hours. Generally, the battery can also be restored.

4. If you want to repair a 10AH battery, you can use the above method to charge it continuously with 1A current for 20-24 hours to repair it!!! But the current of the 10AH charger is about 1.5-1.8A, which is too high. A resistor can be connected in series to reduce the current to 1A.

5. Just use a syringe to extract the electrolyte that has come out of the battery into the lean solution, and the repair is complete.

Hello:

Firstly, you need to see how your battery is broken, and then choose the appropriate method to repair it.

Generally, batteries experience a decrease in capacity due to vulcanization caused by water shortage. This is what we often encounter. When using the battery, it feels less durable than before, and it doesn't run as far as before. These are all caused by battery vulcanization. You can use repair fluid and battery repair equipment to repair batteries. It can restore about 90% of the battery capacity.

A battery that has been used for 1-2 years will not have the same capacity as a new battery no matter how it is repaired, so there is no such thing as 100%. If someone tells you that a repaired battery with a capacity of 100% is better than a new battery, it is not true.

1. Imbalance

Repair method: Use batteries with consistent capacity, voltage, self discharge, and internal resistance.

2. Water loss

Repair method: Pry open the cover above the battery. Some battery covers are bonded with ABS adhesive, while others are connected with buckles. Some are skateboards. Be careful not to damage the cover when prying it open. At this point, you can see the rubber caps of the six exhaust valves. Open the rubber cap and expose the exhaust hole, through which you can see the inside of the battery. The exhaust valve base of some batteries can be unscrewed, and the exhaust valve base can be unscrewed without opening the rubber exhaust valve. There are also some fillers around the rubber caps of some batteries. Open the lid, shine a flashlight on it, and check if there is any drying phenomenon inside the small hole, that is, whether the battery has lost water. The electrode plate of the battery is wrapped in white fiberglass cotton, which should be moist under normal circumstances. Use a dropper to suck in distilled water and inject it into the battery through the exhaust port. Cover the exhaust hole with a breathable cover on the water filled battery to prevent dust from falling into the exhaust hole. It is best to use medical secondary distilled water. The principle of replenishing water is to prefer less to more. If it's not enough, you can add more. If it's too much, it will cause a decrease in acid density and the battery capacity will be insufficient. Inexperienced individuals can master 5mL per well. It's best to look at it, damp, shiny, and watery. Wet and just right, there are too many bright crystals, and the water is too watery.

Special reminder: Use glass, plastic or other straws for water replenishment tools. It is recommended to use disposable medical syringes, which are convenient to use and easy to measure. Water replenishment tools should not use any metal containing tools. The syringe should have the metal needle removed and a plastic tube inserted before use.

3. Sulfation

Repair method: The sulfurized battery is repaired using a Kodi repair device, using fuzzy digital control theory. By measuring the battery status, positive and negative variable frequency particle waves are continuously emitted during charging and discharging. It takes 10 to 20 hours to remove the hard lead sulfate that has crystallized in the battery.

4. Plate softening

Repair method: After discharging the battery to 10.5V, use a light bulb to discharge deeply for 1-5 hours. Then use an activator to activate and repair.

5. Short circuit

Repair method: Water battery, can drill clear holes, and remove the short circuited lead powder! Electric vehicle batteries can quickly short-circuit the positive and negative poles, burning out the short circuited area!

6. Open circuit

Repair method: The 100A test battery voltage of 0V indicates an open circuit. Using a single measurement method, measure the open circuit and weld it properly.

A multimeter can measure the open circuit of the battery!

Batteries have a lifespan, and battery repair is only to maintain their normal design lifespan. It is unscientific and unrealistic to promote battery repair products that repair batteries damaged by any factor just like new batteries, ensuring that the battery can extend its service life by several times. Any damage to the battery caused by any factor has an impact on the battery life. The problem is how to reduce the damage to the battery and its impact on the battery life. Below, we will briefly introduce several daily maintenance methods for electric vehicle batteries for user reference.

1、 Regularly replenish distilled water. Users generally believe that maintenance free batteries do not require adding water, but this statement is actually incorrect. Maintenance-free batteries generate heat during charging and high current discharge, and if there is heat, water will evaporate. Although the process of water evaporation is very slow, over time, the accumulated amount of water evaporation cannot be underestimated. Therefore, the battery should be replenished with water every 6 months or so to extend its service life.

2、 Go to "Drive every day, charge every day". Lead acid batteries have no memory, so the rapid decrease in capacity is mainly due to battery vulcanization, "water loss", "low voltage" and other reasons. The most feared reason for batteries is "low voltage". Batteries often "low voltage", and the battery plates are extremely prone to injury. Our investigation found that up to 70% of electric vehicle batteries have reduced capacity due to the strong current (starting current) when the electrode plates are discharged, which is caused by pulling (especially obvious electric friction). The electrode plate pulling is a physical damage to the battery and cannot be repaired. Therefore, it is inevitable to use the car and charge it every day to ensure that the battery has sufficient voltage at all times.

3、 Regularly observe the quality of the charger. The charging process of a new battery usually takes 6-8 hours. After being fully charged, the charger will light up green. If the charging time is too long, it is necessary to check whether the voltage protection device of the charger is damaged. If it is damaged, it is necessary to replace the charger in a timely manner, otherwise it is very easy to charge the battery. Additionally, do not purchase a fast charger as fast charging can also harm the battery plates.

4、 Start the electric vehicle with skillful force. The starting current of electric vehicles is high, especially for high-power motors with electric friction, the starting current is even higher. High current can damage the battery plates, and the best way is to ride the electric bike like a bicycle before starting, and then start the power supply of the electric bike. Of course, many electric motorcycles do not have cycling devices, so there is no other way.

5、 Use battery protectors as early as possible. The battery protector, also known as the pulse generator, continuously eliminates the vulcanization of the battery and keeps the electrode plate clean, thereby extending the service life of the battery. However, it has little effect on the damage to the battery electrode plate caused by high current (such as some electric motorcycles using a pulse charger, which results in less significant battery life extension effect), and new technologies must be added for improvement.

6、 Deep discharge the battery once a season. After using the battery for a period of time, there will inevitably be some active substances sinking. If the active substances are not activated in time, it will inevitably have some impact on the capacity of the battery. Therefore, when using electric vehicles frequently, it is necessary to achieve deep discharge of the battery once a quarter.

7、 When the battery is not used for a long time, it should be charged at least once a month. The purpose of doing this is to prevent the battery from being left for too long, which can cause vulcanization and "loss of power".

8、 Prevent the battery from being exposed to direct sunlight. Explosive exposure to sunlight can increase the temperature of the battery, so be careful.

Lithium 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 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