Used Car have entered our lives with their advantages of convenient travel, low carbon and environmental protection, but sometimes their faults can cause troubles. Next, let`s follow the Used Electric Car manufacturers to understand the causes of poor contact in the motor controller. There are three reasons for "poor line connection contact" in Used Electric Car motor controllers: 1. Insufficient protection of wires; 2. The connecting wire is worn; 3. The connector is loose." When the Used Electric Car controller has poor contact problems, the Used Electric Car manufacturer recommends that it be removed from the Used Electric Car, use the naked eye to check whether the outer insulation of the controller connecting wire is damaged, and break it with your hands to check the motor controller. Check whether the wiring port is loose. Used Electric Car manufacturers said that it should be noted that if it is not serious, it can be repaired. If it does not work, you can also directly replace the motor, and the replacement motor must match the controller, otherwise it will not be used. In summary, the controller will be broken. There are many causes and manifestations, and you can rule them out based on what is mentioned above.

Nowadays, Used Car are very common. Because many elderly people may find it inconvenient to drive, the application of Used Car is constantly increasing. Among them, Used Car are more common, but we also encounter some common faults during use, such as Loud noise, what causes it? Let`s give a brief introduction by the Used Electric Car manufacturer. When the noise is loud during driving, you must distinguish where the noise is coming from. If the noise is coming from the motor, it is usually caused by the gap between the shaft and the bearing being large or the Hall element in the motor being displaced and falling off. If it is caused by four The shell of an Used Electric Car vibrates, usually because some places are not fastened, causing resonance. Used Car require a large current to start. If an Used Electric Car uses a square wave controller, its specific working method is destined to make a lot of noise. The noise will be more obvious when starting and driving. This is a normal phenomenon. However, if a sine wave controller is used, the starting noise will not be noticeable. big. For this situation, Used Electric Car manufacturers recommend replacing the square wave controller with a sine wave controller. However, if there is water failure in the motor, it will also cause the Used Electric Car to start with a loud noise. Because water enters the motor, it will cause internal rust and cause demagnetization. This will also directly cause the stator and rotor to run poorly, increase resistance, and cause the Used Electric Car to make noise when starting. In this case, the Used Electric Car manufacturer can open the motor and remove the rust. If the rust is serious, replace the motor with a new one.

When it comes to the type of Used Car favored by the elderly, it must be low-speed Used Car. Especially in some towns and rural areas, low-speed Used Car are very popular. So, do you know how long it takes to charge an Used Electric Car? Let`s follow the Used Electric Car manufacturers to learn more. There are currently two main charging methods for Used Electric Car charging: fast charging and slow charging. Fast charging is high-power DC charging, which can fully charge 80% of the battery capacity in half an hour. Slow charging refers to AC charging. The charging process takes 6 to 8 hours. . The charging time for Used Car with supporting chargers is generally 6 to 8 hours. It is generally recommended that the best time to charge the battery car is when the remaining capacity is 30% ~ 40%. When the charging indicator light turns from red to green, it means that the battery is fully charged. At this time, if time permits, continue charging (floating charge) for about 1-1.5 hours so that the battery can obtain more energy. When the battery car is charged for the first time, the charger may heat up quickly and generate a high amount of heat. Therefore, especially when charging in summer, Used Electric Car manufacturers recommend that the charger not be placed on objects that are prone to heat and burn, and it is recommended not to be placed on the seat of the battery car to prevent fire.

Used Car generally refer to four-wheel Used Car that use batteries as their power source. The batteries mainly include lead-acid batteries and lithium batteries. No matter what kind of vehicle it is, it will need maintenance after being used for a long time. So, how do Used Electric Car manufacturers maintain their vehicles? Let`s follow the editor to find out more. 1. During use, if the driving range of an Used Electric Car suddenly drops significantly by more than ten kilometers in a short period of time, it is likely that there is a problem with one of the batteries in the battery pack, and you should go to the maintenance department of the sales center for inspection. If it is not used for a long period of time, Used Electric Car manufacturers recommend charging it once every month and storing it after it is fully charged. Never store it in a state of power loss. 2. During use, Used Electric Car manufacturers recommend that the charging time should be accurately grasped according to the actual situation, and the charging frequency should be determined by referring to the usual frequency of use and driving mileage. When the vehicle is just started, it should be accelerated slowly to prevent sudden acceleration from damaging components. Under the premise of ensuring safety, frequent braking and starting should be minimized while driving to save electric energy. 3. Cleaning work is the basis for Used Electric Car manufacturers to improve the maintenance quality of Used Car, prevent corrosion of Used Electric Car parts, reduce wear and tear of Used Electric Car parts and reduce energy loss. It is necessary to regularly care for the exterior of Used Car and clean the exterior of each co

Used Electric Car make people's travel safer, more convenient and more powerful. They are newly launched and have attracted more people's attention. It is precisely because of this that it has attracted the love of many entrepreneurs. So, what are the advantages of Used Car investment agency? Let`s follow the editor to find out more. Product advantages: There are many types of electric four-wheeled vehicles, and consumers can choose according to their personal preferences. Therefore, the business of major Used Car investment agency stores is very prosperous. If you want to start your own business, you may want to consider this project. I believe you will get a lot of surprises. Cost advantage: Electric four-wheelers only cost RMB 40,000 to RMB 60,000, and no compulsory traffic insurance or refueling is required. The cost of maintenance is almost zero, and there is no need to replace engine oil, transmission oil, etc. Just use and charge as normal, no other charges. Therefore, Used Car investment agents have strong vitality and broad market development prospects. Environmental protection advantages: The environmental protection advantage of Used Electric Car is 30%, which is about twice that of traditional vehicles. The energy saving effect is very obvious. 80% of Used Electric Car are charged at night and used during the day, which can balance the power consumption of the grid. Secondly, the energy-saving effect of Used Electric Car is very obvious. Investment advantages: Used Electric Car are highly functional and practical, with high product value retention. They do not have high requirements for store location or decoration. In addition, no relevant licenses are required. The actual feedback f

We all know that the battery is one of the important accessories of Used Electric Car. In order to use it better in winter, what kind of daily maintenance do we need to do? Let`s follow the Used Car manufacturers to learn more. The normal working environment temperature of Used Car batteries is roughly 15-40°C. If the ambient temperature is too low, the battery's power will be reduced. The lower the temperature, the more obvious the power drop will be and even damage the battery. Due to the low temperature in winter, the driving distance of Used Electric Car will be reduced. When the temperature rises, the battery power will increase. Used Car manufacturers recommend that for normal use of the vehicle, the simplest way is to charge it in time. Used Car manufacturers recommend using more power when riding in winter. When the vehicle is just started, the vehicle should be accelerated slowly to avoid damage to accessories due to sudden acceleration. Under the premise of ensuring safety, braking and starting should be minimized while driving to save electric energy. The speed control handle should be loosened when braking while driving to avoid damage to the motor and other electric accessories. Use pedals to assist when going uphill, facing wind and other heavy load situations. When you get off the car and push, you should turn off the power to prevent accidents caused by accidentally turning the speed control handle and the car suddenly starting. When using an Used Car in winter, no matter how many miles you ride every day, you should charge it in time at night to keep the battery fully charged. Used Car manufacturers recommend that if you do not use a fully enclosed Used Car in winter, it is best to cha

With the rapid development of the Used Car industry chain, various Used Electric Car have appeared on the market. Nowadays, the quality and appearance of Used Electric Car have been greatly improved. In order to better extend the use of Used Electric Car life, the following Used Car manufacturers teach you how to maintain Used Car motors. Whether it is a brushed Used Car motor or a brushless Used Car motor, excessive input current will affect the performance. The voltage to the motor is supplied through the controller. Aging of the electronic components within the controller will cause the current input to the motor to increase. Therefore, Used Car manufacturers recommend that the controller must be checked and replaced if necessary. When Used Car manufacturers dismantle the motor, they can take out the rotor from the extended end or non-extended end of the shaft. If there is no need to disassemble the fan, it is more convenient to take out the rotor from the non-shaft extension end. When removing the rotor, you should prevent damage to the stator winding or insulation. To replace the winding, you need to check the form, size, number of turns, wire gauge, etc. of the original winding. When the motor stops running, Used Car manufacturers should promptly remove dust and sludge outside the motor to keep the motor clean to prevent oil and water from entering the inside of the motor. Do not spray water directly when cleaning. Used Car manufacturers recommend that Used Car motor gears, bearings and deceleration parts should be lubricated regularly. If the gears and bearing inner and outer casings are excessively worn, the anti-vibration plates are deformed, and the spring performa

The emergence of Used Car has become people's means of transportation and is loved by the masses. However, what do car owners need to pay attention to when purchasing Used Car? Let the Used Electric Car manufacturer introduce it to you. The current Used Electric Car market is very broad, and there are many Used Electric Car manufacturers. Therefore, in this mixed market environment, choosing a big brand Used Electric Car is guaranteed for safety performance and after-sales service; when buying a car, good pre-sales and after-sales services Bad also represents the strength and quality of a brand. Check the material of the Used Electric Car. Most Used Car now are made of fiberglass or metal. However, there are still big differences in metal materials. The simple difference is the difference between welding and one-time stamping. One-time stamping is generally used on mid-level cars, which greatly enhances the solidity of the car body and makes the car body stronger. , to better ensure the safety of passengers. Observe the frame and shell of the Used Electric Car. For a high-quality Used Electric Car, the Used Electric Car manufacturer's frame will be stronger and welded, and the load capacity will be larger. In addition, the outer shell will also use a baking paint process to make the color more uniform; another point is to understand the battery. For a high-quality Used Electric Car, the Used Electric Car manufacturer will use well-known brand batteries in the industry to ensure the battery life of the Used Electric Car. However, this type of battery is relatively more expensive. Therefore, everyone must conduct multiple inspections when making a purchase.

Used Car are compact, flexible and easy to get out, making them widely used in life. Let`s find out whether Used Car need to be charged every day? At present, most Used Car use lithium batteries. Lithium batteries are normally full batteries. In theory, they should be rechargeable immediately. However, the charger is not suitable to be carried with the vehicle, so it is difficult to achieve instant charging. ; And because it is a normally full battery, it must be fully charged as soon as possible after use. When charging Used Car, it is recommended that you use more and charge more, use less and charge less; do not wait for the battery to be fully used up before charging, which will reduce the life of the battery and the endurance of the Used Electric Car to a certain extent. The lithium battery used has no memory. It should be charged and discharged shallowly during use. It is important to recharge the battery in time. Waiting until it is almost empty before charging will not be good for the life of the lithium battery. When driving an Used Electric Car, everyone needs to pay attention to charging when the battery is low and will not be enough for the next drive.

If the Used Car cannot be charged, it may be because the charger is damaged or the battery is damaged. The battery is an important part of an Used Car and a wearing part that needs to be replaced regularly. If the Used Car cannot be charged, check whether the electric phenomenon is caused by a problem with the charger itself. This requires measuring the output current related to the charger. If there is a problem, a new charger needs to be replaced; check whether the charger circuit is connected. Normal, whether the plug is intact, whether there is any damage or disconnection of the circuit, etc.; If an Used Electric Car cannot be charged, it may also be because the battery is broken, because the battery has a certain service life, usually about two or three years. If this period of time has passed, it is normal that it cannot be charged, and the battery may need to be replaced with a new one. You can check according to the above methods.

Used Electric Car are a popular form of electric transportation that are environmentally friendly, economical, and convenient. However, the price of Used Electric Car is affected by a variety of factors, and here are some of the major ones. The make and model of an Used Car are important factors that affect the price. Used Electric Car from well-known brands are usually more expensive because they come with certain guarantees in terms of quality, technology, and service. Different models of Used Electric Car will also have different prices. Generally speaking, models with more powerful functions and higher configurations will have relatively higher prices. The battery capacity and performance of an Used Car also affect the price. The battery is an important component of Used Electric Car. The larger the battery capacity, the longer the driving range and the higher the price. In addition, the brand and quality of the battery will also have an impact on the price. The accessories and configuration of Used Electric Car also affect the price. For example, the brand and quality of Used Electric Car' braking systems, suspension systems, tires and other accessories, as well as whether they are equipped with anti-theft systems, audio systems, navigation systems and other configurations, will all have an impact on the price. Market supply and demand will also have an impact on the price of Used Electric Car. If the market demand for Used Electric Car is large and the supply is relatively insufficient, prices will rise accordingly. On the contrary, if the market demand for Used Electric Car is insufficient and the supply is relatively sufficient, prices will fall relatively.

These small vehicles have become the main way to travel in the city, but there may be some safety hazards during driving, and some safety details need to be paid attention to. Here are some safety tips for driving Used Car on the road. 1. Use appropriate routes Used Car are slow and should not be driven on highways and large roads. They should choose relatively safe alleys or non-motor vehicle roads. At the same time, you should try to avoid driving in densely populated areas to reduce the possibility of accidental collisions. 2. Ensure vehicle stability Because Used Electric Car are relatively stable, accidents such as sideslip or rollover may also occur during driving. Therefore, you should ensure that the vehicle is in a stable state during driving and avoid overloading, overspeeding, or sharp turns. You should be more vigilant, especially in rainy and snowy days or when the road surface is slippery. 3. Pay attention to driving safety and traffic regulations Used Car are equipped with safety helmets, especially when driving, the head is an easily injured part. In addition, one should abide by traffic rules, drive consciously, not block warning signs and pause signs, learn to overtake and change lanes, etc., and have certain traffic driving literacy. 4. Pay attention to vehicle maintenance Replace damaged parts of the vehicle in time to ensure the normal use and stability of the vehicle. Especially in terms of wheels, if cracks or deformation occur, they need to be replaced or repaired in time to ensure safe driving. In addition, do not overcharge, use lead-acid batteries safely, and do not expose the vehicle to sunlight for long periods

Used Car are a vehicle that has attracted much attention in recent years. They use electric energy as a power source and have the advantages of environmental protection, economy, and safety, and are increasingly favored by people. So, what kind of people are Used Car suitable for? First, consider age level. With the development of the times, people are paying more and more attention to environmental protection and healthy living, especially young people. They pay more attention to environmental protection and health, and are more willing to try new things. Therefore, young people are one of the groups suitable for Used Car. Secondly, we can consider the economic level. Although the price of Used Electric Car is higher than traditional vehicles, it has economic advantages. It is not only far better than traditional cars in terms of electricity costs, but also very low in repair and maintenance costs. Therefore, it is suitable for people who pay attention to affordability, especially the middle class. Again gender can be taken into consideration. Women generally pay more attention to vehicle safety and low-carbon environmental protection when driving a car, and Used Car exactly meet this demand. Therefore, female drivers are also one of the people suitable for Used Car. Career factors can be considered. Used Electric Car are an ideal choice for those who travel within cities for long periods of time. For example, civil servants, teachers, people engaged in fixed jobs in enterprises and institutions. Due to frequent daily travel, the environmental protection and economy of Used Car can better meet their needs. All in all, Used Car are not limited to specific gr

1. The selection of windproof devices must be appropriate In winter, Used Electric Car windshield quilts are a must-have for many Used Electric Car cyclists. They not only block the wind but also resist the cold. The vendors selling them on the street have made this product a hot seller. But what everyone has not noticed is that the windshield The gloves and knee pads of the wind quilt are integrated. When turning small or sharp turns, they will be restrained and easily fall. Moreover, the width of the windshield quilt exceeds the width of the windshield and is easily scratched by vehicles on both sides. Yes, the best equipment should be to wear a winter coat and a helmet, which can resist impact and protect the top of your head, but you should also pay attention to the operational flexibility during the riding process. 2. Prepare before riding and pay attention while riding Check the front and rear brakes of the Used Electric Car to ensure that the braking is effective, the steering is stable and free, the tire pressure is appropriate, the tire pattern is good, the front and rear wheels rotate flexibly, and the circuit, battery power consumption, lighting effects, speakers, and standard parts all meet the application requirements. . When driving on some bumpy or steeply sloping roads, you should drive at a slow speed or when getting off the car. Turn off the program when executing to avoid inadvertent rotation of the transmission handle and sudden operation of the vehicle. Driving quickly and safely on uneven roads without fully considering the motor, control panel, battery, etc. will reduce the service life and be easily damaged. 3. Cold weather reduces the charge an

(1) Technical aspects In terms of technical capabilities, although domestic automobile manufacturers have expressed their involvement in the R&D and production of Used Car, due to the limited number of models with high-tech content and capable of mass production, and as the competition for Used Car begins to intensify, due to R&D Funding is too low and innovation motivation is insufficient, which directly affects my country`s technical capabilities for Used Car with independent intellectual property rights; (2) The "power supply" of batteries is the "technical shortcoming" of the future development of Used Car. There are currently two important problems: one is that the cost of batteries is high, the specific energy of batteries is low, and the power of batteries after charging Problems such as short cruising range; the second is whether a true lithium battery recycling, leasing and remanufacturing industry chain will occur in the Used Electric Car market in the future; the third is that the battery sockets are different, just like different brands of mobile phones Charging ports are different, and the uncertainty of "standards" will have a great impact on the future development of Used Car, etc. (3) In terms of energy, the investment in Used Car is more expensive than that of gasoline and diesel vehicles. Its application requires the construction of power stations, transmission and distribution equipment, Used Electric Car charging stations, and basic infrastructure. Construction of battery factories, etc.; (4) In terms of service facilities, the reasons why consumers do not choose Used Car are: imperfect supporting facilities, business service items, few service facilities, l

1. Green and environmentally friendly Used Car can achieve zero emissions and zero pollution during operation. Even if some people say that the electricity consumed is also converted from pollution, this is indeed true, but compared with the emissions of traditional vehicles Generally speaking, the power conversion efficiency of power stations is undoubtedly much higher than that of traditional vehicle conversion. Judging from the current usage of battery vehicles, the energy cost is much lower than that of traditional vehicles, and the electric energy driving in urban areas is much better than traditional vehicles. 2. Cost-effective When you buy an Used Electric Car, you will enjoy certain national subsidy policies, and Used Car also enjoy a zero vehicle purchase tax policy. And today, with the price of oil rising day by day, the cost of electric energy is far lower than the price of oil. However, Used Car also enjoy a zero vehicle purchase tax policy. The battery problem in the later stages of the car needs to be discussed. 3. Simple structure and low maintenance cost The structure of an Used Electric Car is very simple, with only three parts: control module-battery-motor driver. Compared with the engine, transmission, and four-wheel drive system of traditional vehicles, the structure of an Used Electric Car can save a lot of space, and The independent motor drive for each wheel makes four-wheel drive particularly simple. Because Used Car use lower-noise motors, the noise is extremely low and far quieter at low speeds and idle speeds. Higher than traditional vehicles, but this has the disadvantage that it will no longer ignite your adrenaline.

1. Production is only allowed after obtaining qualifications Before Used Car were regulated, low-priced Used Car abounded, and since most of the audience were middle- and low-income groups, they attached great importance to price differences. This resulted in some small workshops and small factories without production qualifications. In the market, some no-name, low-price, and inferior Used Car are produced through assembly and shoddy materials and processes. However, there are potential safety risks for consumers to buy such Used Car on the road. Nowadays, with the licensing requirements for Used Car, these Used Car without 3C certification qualifications cannot obtain licenses, which makes consumers not allowed to buy them. In order to solve this problem, the regulatory authorities have raised the qualification threshold and In addition, we will strengthen the investigation and punishment of illegal activities of qualified enterprises producing non-standard products and small workshop enterprises, and strictly investigate and punish unqualified production enterprises. 2. Sales that do not comply with the catalog announcement are prohibited In addition to lacking 3C certification qualifications, according to regulations, Used Car that are not included in the "Announcement of Road Motor Vehicle Manufacturers and Products" and cannot be registered are also prohibited from driving on the road. Therefore, in addition to meeting the production qualifications of a qualified Used Electric Car, in terms of sales, regulatory authorities will also strictly inspect dealers and prohibit the sale of Used Car that are not included in the catalog announcement to avoid losses to consumers. . 3. If

Battery is the power source of Used Car and a key factor that has always restricted the development of Used Car. The main performance indicators of Used Electric Car batteries are specific energy, energy density, specific power, cycle life and cost. For Used Car to compete with fuel vehicles, the key is to develop efficient batteries with higher energy, greater power and longer service life. So far, Used Electric Car batteries have undergone three generations of development and have made breakthrough progress. The first generation is lead-acid battery, mainly valve-regulated lead-acid battery (VRLA), due to its high specific energy, low price and high discharge rate. The second generation is alkaline batteries, mainly including nickel cadmium (NJ-Cd), nickel metal hydride (Ni-MH), sodium sulfur (Na/S), lithium ion (Li-ion) and zinc air (Zn/Air), etc. Various batteries have higher specific energy and specific power than lead-acid batteries, thus greatly improving the power performance and driving range of Used Car, but their prices are higher than lead-acid batteries. The third generation is a battery based on fuel cells. At present, it mainly refers to hydrogen fuel cells. Fuel cells directly convert the chemical energy of the fuel into electrical energy. The energy conversion efficiency is high, the specific energy and specific power are high, and the reaction process can be controlled. The energy conversion process can be carried out continuously, so it is an ideal car. Use batteries.

Regular inspections of the condition of Used Car are essential. It can help to find some hidden dangers in the use of battery packs and correct them in time. If the vehicle's driving range suddenly drops significantly during use, it is likely that at least one battery in the battery pack has a problem and should be sent to a repair shop immediately for prompt processing. Used Car must avoid overcharging, over-discharging and under-charging, as these will shorten their service life. The charging time and frequency should be determined based on the actual vehicle conditions. If the battery meter indicator light comes on, charge as soon as possible, otherwise the battery will be over-discharged and its lifespan will be affected. And the charging time should not be too long, otherwise it will cause overcharging and cause the battery to heat up. If the battery temperature exceeds 65°C during charging, charging should be stopped immediately to avoid danger. If an Used Used Electric Car accelerates hard when starting, it will cause the battery to discharge at a high current. High current discharge will easily produce lead sulfate crystals, which will damage the physical properties of the battery plates and affect the service life. It is also necessary to charge the battery when parked for a long time. Whether Used Car can be equipped with batteries, it is not necessary. The drive motor of Used Car is directly connected to the motor armature coil through a contactor. Any motor has an operating voltage range. Adding a battery increases the voltage of the original battery pack from 60V to 72V: that is to say, the line voltage increases by 24%. In this case, the motor will be in overvolt

When purchasing an Used Car, you should pay attention to check the relevant configuration of the Used Car, understand the configuration status of the Used Car and the technical indicators of the entire vehicle, and carefully observe whether its appearance is clean and stain-free, and whether the paint color is uniform, bright, full, and without color difference. Check the technical parameters of motor power, charger and controller, battery types and characteristics, etc., and make a simple comparison of relevant technical parameters of models in the same price range. It is necessary to rationally measure whether the price of Used Electric Car is reasonable, choose a regular Used Car manufacturer, understand the energy saving and practicality of Used Electric Car, and ensure that Used Electric Car are energy-saving and environmentally friendly. 1. You can unplug the brake cable of the Used Car. If it is still turning, it means the brake lever is broken and should be repaired in time; 2. Check whether the battery output of the Used Car is normal. If the output is too low, it means that the battery has been damaged and needs to be replaced; 3. Check the handlebar and short-circuit the positive electrode and signal line of the handlebar with iron wire. If the car rotates, it proves that the handlebar is broken and urgently needs to be replaced or repaired. Turn on the power, twist the handlebar and use a meter to measure the positive line and signal line. 4. If the contact of the motor carbon brushes is not sufficient, it will also cause the Used Car to not run even when the power is on.