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Battery repair is mainly aimed at completing a series of repair, repair, refurbishment and other processes for used or in use old batteries. Nowadays, all types of vehicles cannot do without batteries, including cars, electric vehicles, motorcycles, electric tricycles, trucks, ships, agricultural vehicles, etc. Our equipment can repair lead-acid batteries used in these vehicles.

Battery repair is mainly aimed at directly repairing a series of problems such as battery vulcanization, active material detachment, plate softening, hardening, etc. (more than 90% of batteries are caused by these problems). If there are hardware damages such as broken poles, broken grids, plate holes, and shell leakage, they can be repaired first and then repaired to achieve a perfect value. The development of battery repair technology: With the advancement of technology and the improvement of living standards, batteries are increasingly being applied to various fields of life, especially electric vehicles and automobiles. The rapid development of the electric vehicle and automotive industries has provided a broader development prospect for the battery industry. However, due to improper operation by people during use and certain defects in the battery itself, the battery capacity has decreased, and the battery service life has been greatly shortened. Therefore, battery repair technology has emerged. The battery repair technology has gone through various repair stages such as acid addition, high current charging, water therapy, activation, scanning, broadband, high-frequency, resonance, pulse, etc. The early stages of these technologies are gradually being phased out. Nowadays, the microcomputer positive and negative ion battery repair technology is relatively advanced, as well as the composite ion repair technology. The current repair technology is becoming increasingly perfect. You can also click on my name to see the information and mobile phone in my space. There are corresponding materials and articles on it, which should be helpful.

Are you talking about maintenance free batteries. As far as I know, it is as follows.

Remove the battery, open the middle guard, and you can see six rubber covers. Removing the lid reveals the liquid filling port.

Use a syringe to extract water from the battery, add 5 milliliters to each well, and let it stand for one day.

Charge with a charger without covering the rubber sleeve until fully charged (charger green light).

Cover with rubber sleeve and close the plastic protective plate.

The battery is useful if it hasn't been used for a long time and doesn't bulge, otherwise it's a hassle free option to replace it directly.

I hope it will be useful to you.

Batteries generally experience a decrease in capacity due to vulcanization. The reasons for vulcanization include prolonged high current discharge, low power conditions, and long-term exposure to low power or water shortage. There are actually many repair methods, and you don't have professional repair equipment, so you can only add water for maintenance. Both maintenance free dry batteries and water filled batteries require maintenance. Maintenance-free is not something that requires maintenance at all, it's just that maintenance is not very frequent. Generally, battery repair is done through a battery repair device and battery repair solution. You don't have these, so you have to add water and perform simple maintenance. Water has requirements, and tap water, groundwater, and mineral water are not acceptable. Distilled water, deionized water, or high-purity water should be used.

Electric vehicle batteries are all lead-acid batteries, and there is no such thing as disposable batteries. Non rechargeable dry batteries are considered disposable.

It's quite troublesome to add battery liquid, as there are six caps on top that need to be pried open before adding. Panasonic's cover design has good sealing and is difficult to pry open.

It can be repaired, but the plate composition of Panasonic batteries is different from ordinary batteries, with a longer lifespan and less effective repair.

Open the battery cover and remove the 6 safety helmets. As shown in the figure:

How to repair electric vehicle batteries.

Fill each well with distilled water using a syringe. If 1.28 standard electrolyte is added, the electrode plate may burn out due to high acid solubility. For example, when we eat hot pot, why does it become more salty as we eat it? That is to say, when water evaporates, salt does not evaporate through steam. Similarly, the acid in the battery does not evaporate, and what is missing is water. Therefore, we only need to add about 20-30ml of distilled water to each small hole. As shown in the figure:

How to repair electric vehicle batteries.

After filling up, let the battery stand still for half an hour, allowing the sponge around the electrode plate to fully absorb water. Then use a resistor to discharge all the electricity in the battery. If there is no resistance, a 12V light bulb can be used instead, such as motorcycle headlights and car turn signals, as long as it can discharge to 0V. How to determine if the battery is about to run out of battery? When the cement resistor discharges, the resistor body starts to heat up and gradually becomes less hot. At this point, the battery also runs out of battery. If it's a light bulb, it needs to be direct. As long as the light slowly stops turning on, it indicates that the battery has been discharged. The discharge time depends on the capacity of the battery at the time of discharge. We can ride the battery until it runs out of battery before maintenance, which can shorten the discharge time. As shown in the figure:

How to repair electric vehicle batteries.

After discharge, charge the battery. If possible, pulse charging can be used because pulse charging can effectively remove the sulfurization of the electrode plate and improve the battery capacity. If you don't have it, you can also use a car charger instead.

As shown in the figure: (Charging the battery) Taking pulse charging as an example below.

How to repair electric vehicle batteries.

After charging, use a syringe to remove excess water from each hole. There are a total of 6 holes, completed step by step. As shown in the figure:

How to repair electric vehicle batteries.

Cover the car with a hat and lid to use.

First, pry open the cover plate on the battery, as the glue inside usually breaks the cover plate after prying it open, it's okay.

There are 6 small holes inside, covered with a rubber cap, remove it along with the surrounding white absorbent cotton.

Teach you how to repair batteries!

Using an injection syringe, add about 25 milliliters of supplementary solution to each small hole (depending on the individual battery's liquid shortage situation, be careful not to exceed the upper electrode plate, otherwise the liquid inside the charging will be full, because the liquid will boil during charging, and if more is added, it will be withdrawn). Pay attention to the breathability of the small holes, otherwise you won't be able to add them.

Teach you how to repair batteries!

Wipe off any liquid leakage around, restore the cap, and absorb cotton. Wrap the battery with tape. At this point, your battery can be used for another two years. OK!

Teach you how to repair batteries!

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