The electric car can t go far, it s boring, and the speed is halved, how to fix it?

So the electric car loses power quickly and can't run far, is it really a problem with the battery?

Taking the discharge time of a new battery within three months of leaving the factory at 25°C for 120 minutes, for example, if the actual discharge time of the battery is 118, 118, 117, 119, it can be replaced according to the return standard, but if the reason for the lack of mileage is all attributed to the battery itself, it is unreasonable.

For example, the normal mileage of electric vehicles can reach 50 kilometers, just this group of batteries the actual capacity is only different from the standard (120-117) 120 * 100% =, the mileage conversion, kilometers, the reduction of mileage in the actual use of the process is basically not felt, if the customer finds that the battery mileage has dropped a lot, the battery only accounts for a small reason, must be the vehicle failure or unreasonable use of most of the factors.

Leaving aside the problem of vehicle failure, in fact, many users have adopted unreasonable ways in the process of using electric vehicles. In particular, you must pay attention to the following two situations!

Situation 1: If the electric vehicle goes uphill more during driving, you will find that the electric vehicle loses power very quickly, and the mileage of one charge will be much less than on a flat road.

In view of this situation, when the user is driving uphill, under weight or against the wind, please use manpower to help the ride, which can ensure your battery and motor and prolong the service life.

Situation 2: Many users like to carry heavy items or carry people, although it is very convenient, but at present, many places prohibit electric vehicles from carrying people, and secondly, overloading has a great impact on the life of electric vehicles, the most direct is that the battery is not durable!

In view of this situation, then we just do not recommend driving with goods and people!

In this electric car headlines also call on the majority of electric vehicle users, must be reasonable use of electric vehicles, many electric car bad habits do not commit again, there are many factors that affect the electric car not to run far, first self-inspection, and then to seek help, this time, the battery is very innocent!

The electric car can't run far, it's not energetic, the speed is halved, that is, the battery charge is reduced, and the new battery will be restored.

Changing the battery can solve the problem, the battery of the electric car has been like this for a long time, and the electric car has regained its vitality when it is opened to the repair shop for a new battery.

It should be that the battery has been used for too long, and the normal battery electric car will be used for 33 years, and the battery will lose power, and then it will be winter. The battery of his will also go down. Well, you can also go to the electric car shop to fix it.

Fully charge first and then open the battery compartment, the power meter will detect each battery, if the voltage is lower than the indication has been replaced, go to the repair place to replace an old battery that can be used, if it is not possible, it can only be replaced with a new one.

New battery. The first three times you have to run out of power and then charge it for 12 hours, just like a mobile phone, otherwise the battery will wear out.

First check the battery and see how much power it has. See how much is left? Is there a lack of electricity? If the battery is fully charged, it is still not enough power and the range is too short. It may be that the battery is aging and needs to be replaced.

Replace the battery, and the differential.

Specifically, go to the vehicle maintenance shop for a series of maintenance.

It looks like your EV battery is aging and needs to be replaced.

Most of the time it's a problem with the battery, just replace the battery.

Summary. Hello dear for your question. If the speed of the electric car is too slow, it can be adjusted, if you want to increase the speed limit of the electric car, you can try the following solutions, the specific operation steps are as follows:

1. Turn off the power of the electric vehicle, turn the throttle handle three times, and tighten the brake; 2. Turn on the power of the electric vehicle, wait for a few seconds, and release the handle brake after hearing the "Didi" sound of the vehicle; 3. Turn off the power, restart and release the speed limit of the electric vehicle.

Hello dear and honored for your Wu Zheng Chan question. If you want to improve the speed limit of the electric vehicle, you can try the following solutions, the specific operation steps are as follows: 1. Turn off the power of the electric vehicle, turn the accelerator handle three times, and tighten the brake; 2. Turn on the power of the electric vehicle, wait for a few seconds for the bridge, and release the handle brake after hearing the "Didi" sound of the vehicle; 3. Turn off the power, restart and release the speed limit of the electric vehicle.

If the above methods cannot lift the speed limit of the electric vehicle, you can also try the following methods: 1. Turn on the power supply of the balance stove and press and hold the left brake; 2. Turn on the power supply of the mold spine, screw the throttle valve knob to the bottom, then loosen it, and repeat twice to infiltrate; 3. Release the brakes, turn off the power of the electric vehicle, and then start the electric vehicle, and the speed limit of the electric vehicle will be lifted.

If the above solutions still can't cancel the speed limit of the new national standard electric vehicle, you can unplug the speed limit line on the electric vehicle controller.

The specific operation steps are as follows: 1. Open the seat cushion of the electric vehicle, remove the seat screw and find the controller; 2. When connecting the controller, find the interface with two white thin wires, some models are gray thin wires early, and then unplug them; 3. Under normal circumstances, after pulling out the speed limit line, the running speed of the electric vehicle will be significantly increased; If you pull out the speed limit line, the speed remains the same. The driver can find the "three-speed line guessing branch" on the controller, which means that the color of the line is blue, black and brown.

By connecting the blue and black lines, the speed of electric vehicles will be greatly increased.

1. Short circuit in the winding part of the motor

Electric vehicles are weak, and our first consideration is the motor. If the motor is rusted or demagnetized in the water ingress, there may be a short circuit in the winding part, which will directly lead to the abnormal operation of the motor, making the electric vehicle weak.

2. Poor contact of the internal connection line of the controller

The weakness of the electric vehicle may also be related to the controller. If the connection line inside the controller is loose or corroded, and the situation of poor contact is caused, and the most direct result of poor contact is that the electric vehicle runs at abnormal speed and is unable to drive.

3. Gear wear and slip

If the gears are worn and slipped, then the electric car will not run smoothly, which is what we often call weakness.

Fourth, the brake or turnbar is damaged

If the brakes are damaged, the frictional resistance of the electric vehicle will increase, so that the electric vehicle will be weak. If the handlebar is damaged, it will affect the acceleration of the electric vehicle and make the electric vehicle run poorly.

Here's why:

1. The tire pressure of the electric vehicle is insufficient and there is no air, which leads to the increase in resistance of the electric vehicle during driving, and it is necessary to pump the tires, and at the same time, we should also pay attention to whether the tires are flat, otherwise the problem cannot be solved.

2. The battery life is too long, the battery performance declines, and it is usually unable to provide enough power for the motor when climbing, etc., generally if the battery is fully charged, it is mainly related to the motor power. Check the motor hall wire, magnets, axles, etc.

3. The vehicle is overloaded, the low-power motor cannot bear it, and the driving force is insufficient. If the electric vehicle has a strong uphill slope before, but it is weak after a certain period of time, it may be caused by the demagnetization of the motor magnet and the weakening of the magnetism, and the magnet needs to be replaced.

4. The controller and the motor parameters are not matched and incompatible, resulting in unstable current output, and the temporary speed of the electric vehicle occurs, and the motor replacement cost is too large, so only the controller needs to be replaced.

Precautions

1. The screws and nuts of each bicycle should be tightened and should not be loosened or fall off.

2. The rotating parts should operate flexibly, and there should be no jamming or stiffness. For example, the front and rear wheels should rotate flexibly, and should not swing left and right and jump up and down, and the wheels should be able to swing briskly back and forth when they are about to stop, and cannot stop rotating suddenly.

The handlebar should rotate flexibly and freely, and the pedal shaft and crank should be tightened, not loose with each other, and rotate flexibly.

3. The gearing of the transmission vehicle should be correct within the transmission range, the transmission position should be clear, and there should be no neutral gear in the middle.

4. The chain should be tightened appropriately and operate flexibly. Repeatedly shake the crank sprocket with the hand in the forward and reverse directions, and the chain will run flexibly, and there shall be no jumping and falling off.

5. Hold the front and rear parts of the saddle with both hands, and press down the front end of the saddle with one hand, and the front end of the saddle shall not collapse. Then use both hands to turn the saddle horizontally, and the saddle should not be rotated.

The electric car can't go far, it's boring, and the speed is halved, how to fix it?

Electric vehicles have external resistance problems, such as low tire pressure and brake locking. The demagnetization of the motor weakens the power of the battery car and reduces the speed; Rust of the controller handle wires; The battery is aging or the storage capacity is insufficient. 2. The battery of the battery car has a certain service life.

If the battery is often charged irregularly, the aging rate of the battery will be accelerated, and even the problem of bulging will occur in the stool town. But once the battery is fully charged, the battery life of the electric vehicle will be greatly reduced, which will lead to insufficient power and weak performance of the electric vehicle of the battery car. When the battery power is insufficient and the output current is insufficient, the power of the battery car and the electric vehicle will be insufficient, and the controller has a certain under-voltage protection function.

When approaching the undervoltage point, the rough speed of the car will slow down, and the battery and undervoltage point are both there. When the power supply is used to the undervoltage point, that is, when there is no power, if you ride forcibly, the battery will be injured, the speed will naturally slow down, and the hole will naturally make you very tired.

Why can't electric cars run faster (halved) all of a sudden?

The sudden failure of an electric vehicle to run fast is caused by insufficient battery power, poor contact of the power plug, and blockage of the fuel system.

There are 4 ways to fix that the electric car can't go far.

1. The battery of the electric vehicle loses water, resulting in the battery car not running far. Electric vehicle batteries are made up of an electrolyte and lead plates, where the electrolyte is a mixture of distilled water and sulfuric acid.

The battery is easy to lose water after a long time, and the battery capacity becomes smaller after water loss, so it is easy to run far, so it needs to be replenished in time. Prepare distilled water or electrolyzed water, use a syringe, open the upper cover of the battery, open the safety cap reserved by the battery, and then use a syringe to inject distilled water or electrolyzed water into it.

2. The battery crystallization causes the plates to be unable to charge and discharge, so the battery life will decrease. In this case, it is best to go to a special repair shop for repair, and the general repair shop will have a professional pulse technology repair instrument, which can remove the crystals by releasing the particle wave of positive and negative frequency conversion when charging and discharging.

3. The charger is faulty. If the charger is faulty, and the battery has been charged for about 8 hours on the surface, but the battery is not actually full, then this situation will cause the battery to run not far. Generally, in this case, the charger needs to be checked, and if the charger fault is more serious, it is necessary to replace the charger with a new one in time.

4. Brake problems. For example, the brake line does not return or the brake is adjusted too tightly, resulting in increased friction, and more electricity is consumed in the process of riding, and the battery is easy to run far. In this case, the brake line needs to be adjusted in time, the brake can not be too tight or too loose, if the brake line is not returned, it needs to be returned in time.

About the maintenance of electric vehicles:

1. The most important thing for electric vehicles is to charge, so the battery should be well maintained, and if you charge the electricity, don't charge it for too long at one time, and unplug the charger when it is full, and the charging time will reduce the life of the battery.

2. Use the original charger, do not use the charger of other You Zheng electric car to charge, some people feel that other chargers can also be charged, so they can replace them at will and use other chargers, but they don't know that this is more harmful to electric vehicles.

3. After the charger is used, do not put it randomly, you can put it in the trunk or base, in short, you can put it in a place where you can see it, and do not put it in the debris pile.

4. Replace the battery regularly, the battery of the electric vehicle has a service life, and the electric vehicle may not be as good as before after this point in time, so the battery should be replaced in time.

5. Also pay attention to the cleaning of the electric vehicle, wipe the dust on it every day, as well as the dust on the wheels, too much dust will affect the driving speed.

6. When riding, you should be steady, don't ride too fast or too slow, just drive at a constant speed, and reduce the frequency of braking.

Summary. Kiss <>

Hello, I'm glad to answer for you, the way to repair the electric car is to check and eliminate the cause of the electric car cost in the first step; First of all, check the air pressure of the tires to accelerate, brake too tightly and adjust flexibly, and check and adjust the battery cable. The second step is to detect the working condition of the battery; It is normal to measure the total voltage first, and then open the cushion and test the voltage and capacity of each battery. If you want to check more accurately, it is best to let the owner use the power to less than 20% The detection is more accurate, and the battery in question will generally be found.

How to fix the electric car if it can't go far.

Kiss <>

Hello, I'm glad to answer for you, the way to repair the electric car is to check the first burn loss step to eliminate the cause of the electric car fee; First of all, it is necessary to check the air pressure acceleration of the tire, the brake is too tight and flexible, and the battery connection line is checked and adjusted. The second step is to detect the working condition of the battery; It is normal to measure the total voltage first, and then open the cushion and test the voltage and capacity of each battery. If you want to check more accurately, it is best to let the owner use the power to less than 20% The detection is more accurate, and the battery in question will generally be found.

Kiss <>

Expansion: Check whether the battery's sakura closed bend connection line is normal; Whether the connecting cable of the battery is loose, the contact is poor, the line is damaged, and the iron is struck. The existence of this situation is also one of the reasons why it consumes electricity and does not travel far, which must be disposed of first.

Detect the voltage and capacity of each battery to identify problems; The power is used to 20% detection, the normal spine voltage of each battery is generally about 10V, after testing several batteries, it is found that one of the voltage drops above, which means that there is a problem with this battery.