How to activate the lead acid battery if it cannot be charged after being placed for half a year

If the lead-acid battery needs to be placed for a long time after being used once, it needs to be replenished before being placed, and at the same time it is necessary to ensure that the battery can be replenished once in 1 2 months, because the battery will have self-discharge, and the no-load current of the electric vehicle will make the battery discharge, if it is not charged for a long time, the battery capacity will be lost and it will not be easy to recover and affect the battery life.

At the same time, it is recommended that if you leave the electric vehicle in use for a long time, it is best to disconnect the battery from the electric vehicle cable for storage.

If the battery is put for more than half a year, there is basically no electricity, and salinization is more beneficial. It is recommended that you discharge the remaining power of the battery, and then charge it with a charger, and so on two or three times to see, it should be good.

Follow these steps to try:

1. Unscrew the plastic cover of each cell of the battery and check the internal liquid level. Enough to fill up to the normal liquid level.

2. Use a multimeter to check whether the voltage of each grid is basically close and whether there is reverse polarity. Whether the total voltage is above volts. If it is found that there is a low voltage or reverse polarity of individual cells, the polarity should be supplemented or corrected separately.

3. It is best to use a charger with adjustable voltage and current and a voltage and current display table. Connect the cable, turn on the power supply, observe the change of voltage and current, if it reaches 14 volts, there is still no charging current, continue to increase the voltage to 16 volts and wait.

4. As long as there is a current, it means that it starts to activate, slowly wait for the current to increase, when the current is checked over one-tenth of the capacity, such as when the battery exceeds the ampere current at 24 amps, reduce the voltage adjustment current to ampere. Wait until the voltage is reduced to below 14 volts, there can still be amperes, activate successfully, and enter the charging stage.

5. This kind of long-term battery generally needs to be charged for more than 14 hours, and the maximum charging voltage does not exceed volts at the end of charging.

The method of activating the new lead-acid battery is as follows:

1. The first activation method:

Find a group of batteries of the same model as the primary battery, and connect it in parallel with this group of batteries that cannot be charged, let the good battery discharge to the battery that cannot be charged, and after several cycles of parallel charging, there is a certain chance that the battery can be reactivated.

2. The second activation method.

Use a small charger to charge this set of batteries first, and then change to the original charger to continue charging. For example, if the battery that cannot be charged is 60V, you can first charge it with a 48V charger and then use the original 60V charger to charge, so there is a certain chance that it can be activated.

3. The third activation method.

You can try to charge it quickly for one to two hours, and use a professional detector to see if the voltage has risen, if it has increased, you can choose to continue charging with the original charger, so that you can activate the battery.

12 hours. For the first charge, it needs to be charged for 12 to 16 hours with a current of 10 percent of the battery's ampere. That is, a 10Ah battery should be charged with a current of 1A, and a 100Ah battery should be charged with a current of 10A.

Regarding the charging time of the first charge, because the battery car battery has not been used when it leaves the factory, it has not experienced charging and discharging, so it is necessary to ensure the normal operation of the battery. Under normal circumstances, the charging time is about 5-6 hours in the hole, so that the battery can be fully charged, and the use of the deficit can be slightly longer. Charging during the day allows you to better control the time.

After the battery is used for half a year, it is recommended to charge the battery once a month, and then charge the electric vehicle battery after deep discharge, and the time is controlled at 12 hours. This will be of great benefit to the power recovery of the EV battery.

When 100% of the electricity is used up, the general charging time of the matching charger will be 8 10 hours, not more than 12 hours (it will have an impact on the battery life), it is not recommended to use up the electricity every time you use it, it is generally recommended to charge it at about 70%, and the charging time is 6 to 8 hours.

Precautions. Dry batteries are also called manganese-zinc batteries, and the so-called dry batteries are relative to voltaic batteries, and the so-called manganese-zinc refers to its raw materials. For dry batteries of other materials such as silver oxide batteries, nickel-cadmium batteries.

The voltage of the manganese-zinc battery is 15V. Dry batteries consume chemical raw materials to produce electricity. Its voltage is not high, and it can produce no more than 1 amp of continuous current.

When the battery car is charged for the first time, the charger may heat up very quickly, and the heat generation is very high, therefore, especially when charging in summer, the charger should not be placed on the object that is easy to heat and burn, and it is best not to put it on the seat of the battery car to prevent fire, because many people will spontaneously combust the battery car when charging, please be sure to pay attention.

No, you don't.

For the first charge of lead-acid battery, you need to use a regular charger, first charge with the initial current (the current is one-tenth of the battery capacity) until the electrolyte bubbles, so that the single voltage of the battery rises to the end.

Continue charging with half of the initial current until the electrolyte bubbles violently, and the voltage should be stable for 3 hours. Generally, after the charger jumps, continue to charge for 1-2 hours, it takes about 8-10 hours to charge, do not overcharge, it will affect the battery life.

Precautions for charging lead-acid batteries.

In the charging process, because the battery voltage gradually increases, the charging current gradually decreases, in order to keep the charging current will not decrease due to the increase of the battery terminal voltage, the charging process must gradually increase the power supply voltage, so as to maintain the charging current is always unchanged, which requires higher automation degree of charging equipment, and the general simple charging equipment can not meet the constant current charging requirements.

In the case of the maximum allowable charging current of the battery, the higher the charging current, the shorter the charging time. If you consider the time, it is advantageous to use this method. However, if the charging current remains unchanged in the later stage of charging, at this time, because most of the current is used for electrolysis water, the electrolyte produces too many bubbles and boils, which not only consumes electric energy, but also easily makes a large number of active substances on the plate fall off, and the temperature rise is too high, causing the plate to bend, and the capacity drops rapidly and is scrapped in advance.

Summary. Hello, the lead-acid battery has not been used for two years and cannot be recharged. If the battery is not used for too long, it may cause slow charging.

or can't be charged. It is necessary to take the way of activation to charge. 1.

In this case, each single battery in the whole group of batteries can be charged, so that it is easy to activate the battery more likely. Due to the long battery sitting time, the charging time is longer than usual. 2.

Charging can be done with a smaller charger, which is possible in most cases. 3.An additional 12-volt battery of normal voltage is connected in series to the entire set of cells.

For example, the original car is a 48V-20Ah battery, then we will connect another 12V-20Ah battery in series. When the charger turns green, remove the battery that is connected in series. Then charge it normally and you're good to go.

4.In the single parallel method, a normally charged and saturated battery is directly docked to the battery-deficit battery in the way that the positive electrode is connected to the positive electrode and the negative electrode is connected to the negative electrode. Among the normal batteries selected, the nominal capacity should be greater than that of the battery-deficit battery.

This method is often used by dealers when testing batteries.

The lead-acid battery has not been used for two years, how to charge it.

Hello, the lead-acid battery has not been used for two years and cannot be recharged. If the battery is not used for too long, it may cause slow charging. or can't be charged.

It is necessary to take the way of activation to charge. 1.In this case, each single battery in the whole group of batteries can be charged, so that it is easy to activate the battery more likely.

Due to the long battery sitting time, the charging time is longer than usual. 2.Charging can be done with a smaller charger, which is possible in most cases.

3.An additional 12-volt battery of normal voltage is connected in series to the entire set of cells. For example, the original car is a 48V-20Ah battery, then we will connect another 12V-20Ah battery in series.

When the charger turns green, remove the battery that is connected in series. Then charge it normally and you're good to go. 4.

In the single parallel method, a normally charged and saturated battery is directly docked to the battery-deficit battery in the way that the positive electrode is connected to the positive electrode and the negative electrode is connected to the negative electrode. Among the normal batteries selected, the nominal capacity should be greater than that of the battery-deficit battery. This method is often used by dealers when testing batteries.

How much time to charge.

Hello, need to rush for 2 hours.

Is it just a single small piece for two hours?

Hello, yes, two hours is usually almost full.

Isn't it two hours to flush each piece?

How to punch the single, where you can buy a punch.

Hello, you can buy a multi-charge charger, ** is sold.

If the lithium battery cannot be charged, if it is left for a long time, it can be charged normally for 3-5 times and repaired. If the charger is broken, it can be replaced; If it is the battery itself, the only reason is to replace it.

It is not necessarily the battery itself that is the problem, it is very likely that there is a problem with the charger, charging socket, and charging plug. It needs to be checked first. If it is left for a long time, self-discharge will deplete the battery, and the capacity is lower than the normal value, resulting in the battery being too low to be charged.

But the lithium battery is easy to activate, as long as it goes through 3-5 normal charge-discharge cycles, the battery can be activated and the normal capacity can be restored.

Reasons why lithium batteries can't be charged:

1. The lithium battery is in an over-discharge state.

That is to say, the discharge of the lithium battery is very low, in a state of deep discharge, and the power is basically used up, so that it is as low as the cut-off voltage of the lithium battery, and the activation method can be taken at this time, but this is not necessarily effective.

2. There is a problem with the charger or charging line.

First of all, you should check whether there is a problem with the charger, the method is very simple, directly measure the output voltage or connect the load of the corresponding voltage to observe, as for the line if there is a problem, then it will take a little effort, after all, it involves circuit hardware and other issues, if necessary, directly disassemble and analyze.

3. The lithium battery has been used for a long time and the battery fails.

The possibility of this happening is relatively small, but it cannot be ruled out certainly, and your battery should be familiar with it, and you should replace the battery after how long it has been used.

4. There is a problem with the battery charging IC or BMS system.

Problems occur in the battery management system due to cell imbalance, etc., resulting in misjudgment of the management IC and failure to detect voltage or current.

Summary. Hello, happy to answer your <>

The solution to the lead-acid battery that cannot be charged after a long time: 1The lead-acid battery disassembles the electrolyte inside, refills the repair solution, waits for half an hour, and then charges it with a matching charger.

2.The high-power and high-current charger charger charger is charged for 15 minutes, and then the matching charger is used to continue charging.

How to solve the problem that the lead-acid battery cannot be charged after a long time.

Hello, happy to answer your <>

The solution to the lead-acid battery that cannot be charged for a long time to accompany the conversation: 1The lead-acid battery disassembles the electrolyte inside, refills the repair solution, waits for half an hour, and then charges it with a matching charger.

2.The charger charger with high power and high front chaotic orange current charges the syndicate for 15 minutes, and then uses the matching charger to continue charging.

Teacher, the leader of the electric fork aluminic acid battery has not been charged for a long time, and now it can't be charged, what should I do?

Hello, dear. The problem with the battery.

Kiss <>

Extension: Lead-acid battery definition: A battery in which the electrode is mainly made of lead and its oxide, and the electrolyte is a sulfur-lifting acid solution.

In the discharged state of lead-acid battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. In the charging state, the main components of the positive and negative electrodes are sulfuric acid and Kaibi lead. In the battery, a portion of the electrolyte is absorbed in the electrode and separator to increase the oxygen absorption capacity of the negative electrode, prevent electrolyte loss, and enable the battery to be sealed.