Can the maintenance free lead acid battery be repaired? Is there a place closer?

Hello, maintenance-free batteries do not need to be repaired as the name suggests, you can go directly to the repair shop to replace a new one! Hope! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello It is not recommended to repair it, it won't take long to break it again, it is better to replace it with a new one. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Fix the uninteresting It won't take long to break down [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Yes, lead-acid batteries, and lead-acid batteries have a very small electrolyte consumption, and there is basically no need to replenish distilled water during their service life. It also has the characteristics of shock resistance, high temperature resistance, small size, and small self-discharge. Of course, its price will be more expensive than lead-acid batteries.

As for the service life, under normal circumstances, the recommended replacement cycle of maintenance-free batteries is about 3 years, which is comparable to lead-acid batteries.

Yes. Of course, there are gel batteries, but we generally call batteries lead-acid batteries.

Maintenance-free batteries are also lead-acid batteries, and as the name suggests, the biggest feature is "maintenance-free". Compared with traditional lead-acid batteries, its electrolyte consumption is very small, and there is basically no need to replenish distilled water during its service life.

The traditional battery is made of lead-antimony alloy, and the maintenance-free battery is made of lead-calcium alloy, the former is made of antimony, and the latter is made of calcium, which is the fundamental difference between the two.

The sealed maintenance-free battery adopts the latest design of the fully sealed structure and modern production technology in the nineties. It has excellent performance of high performance, long life, pollution-free, maintenance-free, safe and reliable.

At present, most repair methods are to use high current, or pulse current, to knock off the lead sulfate crystals and electrolyze them into active substances. I can increase the storage capacity of the old battery without physical damage by 30% or 40%, such as a 20ah battery, after a long time, it may attenuate to half of the mileage of the new battery, then the capacity is generally about 10ah, after my repair, it can be increased from 10ah to 16 18ah, and it can be used for more than a year.

1. It has been completely discharged, try to recharge, charge it a few more times, and if it doesn't work to measure again, you can only replace it.

2. In the case that you don't understand the principle of the battery, it is recommended not to disassemble and repair it privately, and it must be repaired by professionals with professional tools.

Good luck.

Hello's battery is seriously vulcanized, and ordinary chargers can't be charged, and must be activated by high voltage.

1. Clean up.

Before maintaining the battery, first clean the dust on the surface of the repaired battery, and remove the stain and rust on the terminals.

2. Open the exhaust valve and observe the electrolyte inside the battery.

Pry open the adhesive or heat-sealed battery cover, expose the rubber exhaust valve of the maintenance-free battery, carefully remove the exhaust valve, keep it, and observe the internal condition of the battery. Add the electrolyte contained in the battery, and there is just a flowing electrolyte on top of the battery. At the same time, check whether it is caused by black impurities, if there are obvious black turbid impurities, it means that the positive plate of the battery has been significantly softened, and the possibility of the battery being repaired is relatively small.

If there are no black turbid impurities, you need to wait 4 hours for the water to penetrate fully into the battery. If the battery capacity decreases simply because of a long deactivation time, you do not need to perform this step, and you should go directly to step 3 to precharge.

3. Pre-charge.

Constant voltage current limiting charging of the battery. At the beginning, the current is used to charge, and later, the charging voltage is maintained by reducing the current, and the charging is stopped until the charging current drops. Note that when charging, there will be gas spilling out of the exhaust hole with electrolyte, so in order not to pollute the environment, the battery should be placed in a specific container.

After charging, observe whether there are any free molecules inside the battery, if not, the solution needs to be replenished until a few free molecules appear. If there are free molecules in each single compartment, use a pour and straw to suck out the visible free molecules, leaving the battery in a quasi-lean state. After the end of charging, after the battery is stationary for half an hour, measure the open circuit voltage of the battery, the voltage should be above 12V, if the battery voltage is lower than 12V, especially below, the battery may have an internal short circuit, and the battery has no maintenance value.

4. Repair. Connect the positive and negative outputs of the repair instrument to the positive and negative poles of the battery, turn on the repair instrument, and repair the battery. The first repair time should not be less than 48 hours.

5. Capacity test.

Discharge the battery according to the current and record the discharge time. Its discharge current multiplied by the number of hours of time is the capacity of the battery to repair. If the capacity of the Chongqing battery reaches more than 70 of the nominal capacity, the repair will be completed.

If the nominal capacity does not reach 70, continue to charge as in step 3. Generally, batteries that have been stored for one year need to be repaired twice before they can be restored to the state before they are stored for a long time.

The electric vehicle battery uses the Qiao Song charging repair instrument "Ribang" to have a good repair effect on the starving and lightly fluidized old battery

It depends on what kind of failure is caused, vulcanization is repaired with a repair instrument, and the plate is broken by hand, I have opened the battery repair department for 15 years, and I have a little experience.

Buy** electrolyte or buy repair solution and electrolyte to prepare electrolyte with the repair modifier on the pulse charger to repair the battery repair time of two and a half hours before repair, add liquid and let stand for 24 hours.

When a maintenance-free battery fails, the battery fluid is often reduced, and the battery can be used for a longer period of time by adding the corresponding battery fluid.

Maintenance-free generally does not require maintenance, but of course daily care is still very useful.

If the capacity is insufficient, it can't be done, if it is caused by sulfurization, you can add an activation to activate.

Maintenance-free batteries are not all lead-acid batteries.

The basic structure of a battery is two electrodes and an electrolyte.

together in a container. Commonly used batteries are mainly divided into four categories according to their structure: ordinary batteries, dry-charge batteries, wet-charge batteries and maintenance-free batteries.

The first three of these require adjustment of the electrolyte and electrode surface after a period of use, the so-called maintenance. Any battery that does not require maintenance over its design life can be called a maintenance-free battery.

In addition to the structure, the battery can also be divided into lead-acid battery, nickel-chromium battery, nickel-metal hydride battery, and lithium-ion battery according to the electrode material.

Wait a minute. Each of these types of batteries is divided into maintenance-required and maintenance-free. For example, the commonly used mobile phone battery is a maintenance-free battery.

However, the maintenance-free battery that is now emphasized on the market is absolutelyMostlyAll of them are lead-acid batteries, and there are a few nickel-chromium batteries and nickel-metal hydride batteries. Like lithium batteries, there are no varieties that need maintenance except for special purposes, so they are not regarded as maintenance-free batteries.

Maintenance-free battery is lead-acid battery, maintenance-free means that the battery loses less water, basically do not add water, do not maintain yourself, the antimony content of the plate of this battery is relatively small, not easy to lose water, so it is called maintenance-free battery.

Hello! The maintenance-free battery is a lead-acid battery.

Maintenance-free lead-acid battery, as the name suggests, the biggest feature is maintenance-free. Compared with lead-acid batteries, the consumption of electrolyte is very small, and distilled water should not be replenished during the service life. It also has the characteristics of shock resistance, high temperature resistance, small size, and small self-discharge.

Of course, its price will be more expensive than lead-acid batteries.

Lead-acid batteries can be repaired. The repair method of lead-acid battery is very important, and the best method is to add distilled water, use the pulse method for sulfur removal and recovery, and carry out different technical treatments according to the actual situation of the battery. This is true lossless recovery.

Generally speaking, it is best not to add chemical reagents lightly, because it will change the battery components, cause damage to the flat plate, it will have a short-term effect, it is easy to cause heat control and other problems, and eventually the battery will be completely scrapped. In addition, any method combined with the pulse method has been shown to help improve the recovery effect.

Precautions for lead-acid battery repair.

In the process of repairing lead-acid batteries, the first thing to know is what the cause of the problem is, and the solution for each fault may be different. Then, we need to find a suitable workaround. Hopefully, the above sharing will help you solve the problem in future repairs and find a suitable repair method for lead-acid batteries.

Repair the battery by using the particle generator in parallel with the battery. This method is also good for lead-acid battery recovery, but due to thorough repairs, the possibility of battery vulcanization is usually completely eliminated for continuously used EV lead-acid batteries if there is no over-discharge.

The real repair method of maintenance-free lead-acid battery is as follows:

If the vulcanization of the battery is not severe and the capacity does not drop much, the battery can be charged for a long time with a small current (or less).

If the vulcanization of the battery is severe, it can be charged to the highest voltage (6V battery charged to 7V, 12V battery charged to 14V), the electrolyte in the battery is pumped out with a syringe, and then distilled water is injected to dilute the electrolyte.

After charging for 1 2 hours, the electrolyte is pumped out, distilled water is injected, and the above operations are repeated until the specific gravity of the pumped electrolyte no longer rises significantly (generally 2 3 times is enough) liquid balance. At this time, try to extract the electrolyte as much as possible, and then inject sulfuric acid with a specific gravity according to the ambient temperature, and then fully charge it after making a noise, and check the specific gravity of the electrofluid.

If the specific gravity is small, the electrolyte can be pumped out again and sulfuric acid can be injected to make the specific gravity of the electrolyte reach the standard. Note that the electrolyte injected into the battery should not be too much, and the sponge-like substance in the battery can be filled with electrolyte, and the excess electrolyte can be extracted, and the repair work will be completed.

Maintenance-free batteries have the characteristics of low cost, easy to carry, large capacity, etc., and have been used in automobiles, motorcycles, electric bicycles, electric tricycles, emergency lights, flashlights, UPS power supplies and other aspects. However, if it is not used properly, it will cause damage to the battery and even scrap it. In fact, as long as it is properly repaired, the capacity of most batteries can be restored to a certain extent.

Whether the electric vehicle battery can be repaired mainly depends on what causes the failure of the electric vehicle battery. Taking lead-acid batteries as an example, most of the battery failures are due to the battery bulge caused by the battery charging and discharging for a long time, and this bulging is irreversible and quite difficult to repair, so it can only be replaced with a new one.

Single battery failure, although theoretically. As long as you find a small battery with the same voltage and current to repair the battery failure, but from a practical point of view, it is difficult to achieve, because the batteries are in groups, and the conditions of the repair shop on the market are not allowed.

Although the construction of the battery may seem simple, it still requires a certain amount of expertise from the maintenance personnel. At present, for the maintenance of batteries, many masters are accumulated from the profession of bicycles and motorcycles, and some theoretical knowledge is not deep and familiar. Therefore, from this point of view, if the battery of an electric vehicle is broken, it is generally replaced with a new one!

And even if it is repaired, it may not be durable. Each electric vehicle battery has a certain charge and discharge limit, generally damaged, and then choose to repair, the battery will only recover for a short time, and then use it again for a period of time, the electric vehicle will still have insufficient power to run far!

In short, if there is a problem with the electric vehicle cavity battery, as long as it is not a circuit problem, general maintenance is unlikely, and the best choice is to replace the battery with a new one. For users, to make the battery more durable, this factor can only start from the daily maintenance of electric vehicles.

As a veteran lead-acid battery production group, Changxin Battery has excellent reputation and quality, and has been praised by the market for many years. As a high-end product in lead-acid batteries, Changxin graphene series adopts a more scientific direct row structure, an upgraded formula with higher energy density, and a higher technological content, bringing longer life base, longer endurance and more stable performance.

Electric vehicle battery repair is feasible, and the repair time generally takes about 3 days.

Electric vehicle battery repair is for the battery that has no external damage, no obvious short circuit, open circuit situation, can be repaired.

The electric vehicle battery is the power of the electric vehicle**, and the vast majority of electric vehicles are equipped with lead-acid batteries, which are low cost and cost-effective. Because this battery can be recharged and can be used repeatedly, it is called a "lead-acid battery". In 1860, France's Plantai invented a battery with lead as electrodes, which was the predecessor of the lead-acid battery.

Extended Information: Precautions for the use of electric vehicle batteries:

Regularly check the position of the liquid level of the electrolyte, and replenish it immediately when it is lower than the minimum liquid level scale line, if you continue to use it in this state, it will not only accelerate the aging of the internal parts of the battery, shorten the service life of the battery, but also may cause copying.

Do not place the battery near an open flame or cause sparks caused by short circuits in the wires near the battery. When charging the battery, read the battery's instruction plate carefully and remove the battery from the machine.