The electric car has been used for a year and a half. It is full in three hours of charging, and it

The battery has been vulcanized due to lack of liquid, so it is recommended to add liquid to repair it.

Open the outer cover of the electric vehicle battery, add 5 10 ml of replenishment solution to each single compartment, and then charge it with a digital pulse charger, after it is fully charged, use the lead-acid battery repair instrument for 24 hours of desulfurization repair, which can restore the battery capacity to about 80 of the new battery capacity.

Taking lead-acid batteries as an example, its working principle is: the lead grid plate in the battery exchanges ions with the sulfuric acid solution to release electrons, that is, the battery is discharged. However, when the lead grid plate is used for a long time, the lead sulfate on its surface cannot be reduced to sulfuric acid and lead during charging, and the thicker the accumulation of this layer of lead sulfate, the worse its charging ability will be, that is, the rechargeable time you said is short, and the natural power is less.

Now, for the sake of economic interests, some unscrupulous traders do not buy new batteries and sell them to customers, but waste batteries, change the appearance of the sulfuric acid solution inside, and decorate it as a new one. You don't think there's anything wrong with this battery at the time, but it has a short lifespan. If you don't understand this, it's best to get a new one, and whoever you buy a car (new car) will find whoever they are responsible for.

If it's a used car, then solve it yourself.

Swap it! There are no other good ideas right now!!

The simplest and most effective way is to add distilled water, but you can find someone who knows how to guide you, which is quite simple. If you have a lot of money, get a new battery.

This is not necessarily, the mileage of electric vehicles is related to the battery capacity, and single riding and manned riding is also related, as well as the speed of riding (violent riding or stable speed driving), in addition to different seasons will also affect the battery life, the general electric car riding about 40 kilometers.

In the end, how far to run on a charge is marked on the manual when buying a car, but it can only run to 80% of the mileage, because the mileage mentioned by the manufacturer is a theoretical mileage.

However, one thing is to remind you that all car batteries should not be used up and recharged as much as possible, they should be fully charged shallowly, and they must be charged once for about 20 days without using them for a long time, and it is best to recharge them for 1 hour after the charger changes the lights but not more than 2 hours, if the lights have not changed for 8 hours, they should stop charging and send them for inspection to see if the battery or the charger is faulty, otherwise the battery will bulge up and cause losses.

It has to do with the old and new vehicles:

If the electric car is used for two or three years, even if it is a new battery, it feels that the mileage and power are worse, which is normal.

After all, the main power of electric vehicles comes from the motor and controller, the aging of the motor and controller, will inevitably affect the speed and mileage, for example, a new car once fully charged to run 60 kilometers, after two or three years, the same road section and speed, may only run forty or fifty kilometers, so if the vehicle has a problem for a long time, you can consider overhauling it, which is also beneficial to the riding safety of electric vehicles.

Generally, it can be fully charged in 7-8 hours, but it is better not to charge it continuously, because when the battery car is new, the charger will automatically protect it when charging. Once the automatic protection function is broken, it is easy to inflate the battery. I can only run a little bit.

When the charging indicator turns from red to green, it means that the battery is fully charged, at this time, if time allows, it is best to continue charging (floating) for about another hour to make the battery get more energy.

However, the continuous charging time should not exceed 12 hours, otherwise it is easy to cause deformation and damage to the battery.

Charging Precautions:

1. After charging, unplug the AC power supply first, and then unplug the plug connected to the battery.

2. It is forbidden to connect the charger to the AC power supply for a long time without charging.

3. Do battery maintenance once every one to two weeks, that is, after the charger turns on the green light, continue to charge (float) for hours to prolong the service life of the battery.

4. Please use the special charger equipped with the car. Do not use other chargers to charge the car.

5. When charging, it should be carried out in a ventilated and dry place, and the charger and battery should not cover any items.

6. The charging place should be kept away from children, and the hands must be dry when plugging in and dialing.

That depends on how much capacity your battery has! If only the new one had 6 to 8 hours, it would be fine! Generally speaking, the charging time of the battery will become shorter with the time of use, this is because the battery is slowly losing its power storage function, and the battery has a service life!

If you want to buy a new one, then it is recommended that you go to the place where you buy it and find a merchant to help you test it!

The new car is generally (60-85) kilometers for a single rider. The human factors that affect mileage are: tire pressure, load, starting too fast, braking too often, riding speed, and natural factors are

Road conditions, uphill and downhill, headwinds, if all of the above are at the best full speed (85-95) km, such as 25 km h at a constant speed (95-110) km.

If you are not worried about the mileage of your car, you can measure it, it is recommended to install an electronic mileage counter, everything is clear at a glance. (35-50) yuan.

The second question: It depends on the charger power is generally 150w, 180w, 200w, 220w, 250w(The charger power is on the back of the charger or on the manual) is calculated as follows:

kw h) Suppose your charger power is 250w, charging for one hour is kilowatt-hour. And so on for 10 hours, it is the kilowatt-hour of electricity.

The electric car was charged for more than twenty hours and there was no impact. Some electric cars will automatically turn off the charge. So the impact is not particularly large.

If the electric vehicle is charged for more than 20 hours, the charger may have inflated the battery if it is not stopped, which is very dangerous and easy to fire.

It doesn't matter, now there are overload protection.

Fully charged, it will automatically stop charging.

If the tram is charged for 12 hours, if the tram power display is not full and the power is lost, it means that the tram's power display is broken, and the electric car needs to be repaired.

Another point, if you charge for 12 hours, the charger shows that it is still charging, you should also replace the charger as soon as possible, the normal use of the tram battery, the charger can be fully charged in about 8-10 hours, if you keep charging, you have to wash out the battery.

EV Charging Note:

1. Under normal circumstances (not often taking people, not climbing all day), it is best to charge only after 60%-70% of the longest continuous mileage on the manual, which can not only avoid the early capacity loss of the battery, but also avoid over-discharge.

2. If you often take people and climb slopes, it is recommended to drive to 50% of the longest continuous mileage on the manual to charge.

3. If you usually drive very little, and you don't drive to 60%-70% of the longest continuing mileage in a week, it is recommended to charge it once.

4. If you go out or don't open it for a long time, it is recommended to charge it once a month.

5. In any case, the charging time of the electric vehicle battery alone should not exceed 8 hours, especially in the case mentioned in point, not more than 5 hours. The above situation is based on the premise that the battery performance has not decreased significantly, if the battery performance has been significantly reduced, please modify it as appropriate.

Whether it is still running far or not far, the battery is not charged in 12 hours, and the charger does not light up the green light, this situation is that the battery is damaged, and the voltage of the battery charging cannot reach the maximum voltage.

Friend, you said that the electric car can't be fully charged, and the tram will go far, right? This question is very simple, is the electric vehicle power loss display not fully charged, or the tram charger display is still charging! The tram is charged for 12 hours, if the tram power supply power display is not full of power, that is, the tram's power display is broken, hurry up to repair, the reason is very simple, if you don't go out to repair, if you go out to do things, you can't see if the tram has electricity, and I don't know, there is no electricity on the road, then it's a bad thing.

Another point, if the charging for 12 hours, the charger shows that it is still charging, but also to replace the charger as soon as possible, the normal use of the tram battery, the charger charging is about 8-10 hours can be fully charged, if he keeps charging, then do not charge the battery! It's okay once or twice, it's not okay after a long time, the battery of the tram doesn't have that much capacity, friend, now it's clear! You'd better check the problem of the tram yourself according to the method I told you, you can definitely find out the problem of the tram, tell me if you don't understand, I will help you, I hope to adopt my answer!

Causes of self-discharge of the battery. This phenomenon is still very common in real life, for example, many people are used to charging directly after the battery is used up, and after the power is fully charged, it will be placed in the garage for direct use next time, but in fact, it is possible that it will not be used again for a long time, in this case, because the battery of the electric vehicle has the phenomenon of self-discharge, the longer the storage is not used, the greater the power loss, and the faster the battery voltage will drop.

When you ride again after placing it for a long time, it is easy to cause a situation where it is obviously full of electricity, but when you want to accelerate at the beginning of running, you will directly drop two grids of electricity. To avoid this situation, you must often ride an electric car out, and electric vehicles cannot be put on the shelf for a long time. In addition, when installing the battery, be careful to avoid connecting the external metal to the positive and negative electrodes of the battery.

Introduction:

It may be the effect of cadmium-free battery. In the past, there was a heavy metal cadmium in the battery, which has the characteristics of corrosion resistance and long life, and the stability is relatively strong, but because cadmium is a heavy metal, it is extremely harmful to the environment, and the impact on the human body is not to be underestimated.

The battery of the electric vehicle is faulty, and there is no storage capacity, so you need to go to the electric vehicle maintenance point to replace the new battery.

Battery, also called battery, battery is a kind of battery, its working principle is to convert chemical energy into electrical energy. Usually, people refer to batteries as lead-acid batteries. That is, a battery mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution.

Check if there is any problem with the electric vehicle battery. First of all, check whether the connection of the charging circuit is reliable, check whether the connection between the wire and the plug is intact, and carefully check whether the socket and plug are available"Ignition"Arc burning phenomenon, whether there is line damage and wire breakage, etc.

The damage of the electric vehicle that is usually checked, when the electric vehicle is starting, carrying people, and going uphill, please use the pedal to help and try to avoid instantaneous high-current discharge. High-current discharges can easily lead to lead sulfate crystallization, which damages the physical properties of the battery plates.

Generally, the electric vehicle is a group of four batteries, about 300-500, if you need to change, it is best to choose a regular choice of maintenance location.

The electric car can be charged for two hours, and it can be ridden normally, which is about 12 to 18 kilometers, which depends on the capacity of the battery of the battery. First, if the battery of an electric vehicle is charged for two hours when it is completely empty, then this can generally be charged to about 15 to 20%, and the normal number of kilometers that can be driven is generally about 12 to 18 kilometers. Second, if it is charged on the premise of remaining part of the battery, then this can generally ride for 20 to 25 kilometers, which is no problem.

Third, the correct charging method related to electric vehicles, this is generally 20 to 30% of the remaining power when the relevant charging, this general charging time is 6 to 8 hours, for the best is not recommended to guess the long-term charging, to avoid the phenomenon of battery overheating and bulging. Under normal circumstances, the lifespan of an electric vehicle battery is about 3 to 4 years. Third, the number of kilometers traveled by the relevant electric vehicle, which also depends on the usual road conditions and the relevant local temperature conditions, if the local ambient temperature is particularly low, this will also affect the mileage of the relevant electric vehicle.

Hello, there are multiple reasons for this.

1. The battery is aging, and the electrolysis defense and quality training is weaker than the ability to store electricity, at the beginning of Zheng Xiang's battery is fully charged due to the large discharge, so fast, and in the later stage, due to the unstable discharge, it will be slow.

2. The electromagnetic supply of the motor is not available, in the use of electric vehicles, if there is often overload, the long stocking delay time causes the motor to bear too much weight, which will gradually weaken the magnetism of the motor until the magnet is demagnetized; If the cheating is reported in strong vibration or too high temperature, the denier will also demagnetize the motor. Any demagnetization of the motor will cause the electric car to run poorly.

3. The contact resistance of the electric door turn plug is too large, which will also cause the motor to rotate slowly and drive without force. The countermeasure is to detect the voltage of the speed control signal line (green wire) of the speed control handlebar, and when the handle is at the maximum angle, the voltage at the speed adjustment terminal should be traced. If it is less than this voltage, the motor speed will slow down, and it is necessary to replace the first speed control handle as soon as possible.

Hello, there are multiple reasons for this situation1 The battery is aging, the electrolyte storage capacity is weak, at the beginning the battery is fully charged due to the large discharge, so fast, and in the later stage due to the unstable discharge, it will be slow 2 The electromagnetic supply of the motor is not available, in the use of electric vehicles, if there is often an overload phenomenon, the motor load is too large for a long time, which will make the magnetism of the electric machine gradually weaken, until the magnet is withdrawn; Motor demagnetization can also occur if there is a strong vibration or excessive temperature. Any demagnetization of the motor will cause the electric car to run poorly. 3. The contact resistance of the electric door turn plug is too large, which will also cause the motor to rotate slowly and drive without force.

The countermeasure is to detect the voltage of the speed control signal line (green line) of the speed control handlebar, and when the handle is at the maximum angle, the speed control terminal voltage should be. If it is less than this voltage, it will cause the motor speed to slow down, and it is necessary to replace the speed control handle as soon as possible. 4. There is a problem with the controller, the speed of the vehicle is determined by the motor, and the speed of the motor depends on the size of the controller current.

Therefore, the current allocated by the controller is different, the larger the output current, the faster the speed, and if the power of the controller and the motor does not match, it will also lead to slow speed.