Do I need to charge the battery before using the newly purchased electric vehicle?
Answer: Yes. Because there is a turnover process for the battery from the factory to the installation of the vehicle and then to the consumer. During the turnover period, the battery will have insufficient capacity due to self-discharge. Therefore, the on-board charger must be used to charge the battery until it is sufficient. The same applies to newly purchased batteries.
If you are away on a long-term business trip, what should you do with the battery when the electric vehicle is not in use?
Answer: The battery must be fully charged before storage, and the battery must be recharged once a month in the future to avoid the battery's long-term loss of electricity storage and the battery's capacity decline or even scrap due to the sulfation of the plates.
What should I pay attention to when using electric vehicles in summer?
Answer: 1. Avoid exposure to the hot sun;
2. Charging in high temperature environment is strictly prohibited;
3. Avoid charging immediately after driving under high temperature to prevent the charging time from being too long (normally about 8 hours);
4. When the battery is charging, the power box is hot or does not turn green. You should check and maintain the battery or charger in a battery shop or company after-sales service outlets.
What happens when using electric vehicles in winter, and how to avoid them as much as possible?
Answer: If you use an electric car in winter, you will notice a significant decrease in mileage (more obvious in the north). this is normal phenomenon. In a low-temperature environment, the battery's charge acceptance capacity decreases, while the electrolyte viscosity increases and the electrochemical reaction resistance increases, resulting in a decrease in battery capacity. Therefore, consumers should avoid leaving the electric car overnight or charging in a low temperature environment when using it in winter.
What should be paid attention to when riding an electric bike?
Answer: In order to prolong the service life of your electric bicycle, it is recommended that you first assist manually when starting the electric bicycle, and then use electric power to ride; the load should not be too heavy during riding (not exceeding 75kg according to the regulations); during riding In case of steep slopes or headwinds, pedals should be used for assistance. The above measures are to prevent the battery life from being affected by high current discharge.
Can the electric bike continue to ride if the battery is low?
Answer: No. You should charge it in time when the battery is low. Although the battery is protected by the controller's voltage limit, it is still for a while, and the battery voltage rises, and you can ride for a short time. Such use will cause the greatest damage to the battery and will cause the battery to over-discharge, which will seriously affect the service life.
What is the harm to the battery when the electric vehicle battery is overcharged?
Answer: If you are using a low-quality charger or a charger failure or you charge the battery for too long, it will cause the battery to lose water and increase the electrolyte, which will easily cause the charging drum to deform and terminate the battery's service life.
Is the short range of electric bicycles a problem with batteries?
Answer: Not necessarily. When the battery ages and its capacity decreases, the cruising range will become shorter, but the following problems that are not battery will also cause the cruising range to become shorter:
1. When the efficiency of the motor decreases, the unnecessary work done increases, wastes electricity, and shortens the continuous mileage;
2. Inferior chargers undercharge the battery every day, so that the battery capacity is insufficient and the cruising range decreases and shortens day by day;
3. Poor controller makes the electric vehicle's starting current too large, and the starting time is too long, which wastes electricity, which makes the electric vehicle's cruising range shorter;
4. If the wear coefficient of each moving part of the low-quality electric vehicle is too large, or the mechanical transmission resistance is too large, it can also cause a waste of electricity and shorten the continuous mileage.
What are the safety precautions when using the battery?
Answer: 1. The battery must not be close to open flames or high-temperature heat sources, and the battery must not be thrown into fire or immersed in water, and it is strictly forbidden to expose it to the sun.
2. The battery shall not be placed in a closed container. Good ventilation should be maintained.
3. If the battery shell is found to be broken. In case of leakage, the battery must be replaced.
4. The electrolyte is an acidic solution. If it gets on the skin or clothing, it must be rinsed immediately with plenty of water.
5. The battery must not be short-circuited or used upside down.
When is the best time to charge an electric vehicle battery?
Answer: When the battery indicator pointer on the electric vehicle is at or nearing the lowest position, it is best to charge the electric vehicle, which is beneficial to the service life of the battery. If your riding mileage is within 5-10km every day, it is recommended that you do not charge, that is, do not charge for short mileage and frequent charging. Otherwise, the battery life will be terminated prematurely.
Can a single or several batteries be replaced or used for other purposes?
Answer: When one or more of your electric vehicle batteries fails, you need to replace the whole group, and you must not replace the defective battery alone. Only maintain the battery can do so as appropriate.
Special reminder: One set of batteries must not be used for other purposes.
What is the core device of an electric car?
Answer: The four major components of an electric vehicle: battery, motor, controller, and charger are the core (main device part) of an electric vehicle. We usually compare the battery to the heart of an electric car, the controller to the brain, the motor to the limbs, and the charger to input energy from the outside world. The best performance of electric vehicles can be exerted only when the four are used in a reasonable combination. No matter which device has a problem or the relevant parameters do not meet the mutual configuration requirements, it will reflect that the electric vehicle has a short driving range and the battery life is terminated early. Therefore, the lack of mileage of electric vehicles is not entirely a battery problem.
Six dangerous behaviors of electric vehicles must not be done
Do not drive in the opposite direction. Be especially careful not to go backwards in the fast lane.
When buying an electric car, you must ask whether the brand and model are in the list of vehicles that can be licensed by the Provincial Public Security Department. If the license is handled by the manufacturer, the local license must be used.
Don't take people by bike. Many electric vehicles have two-seater seats, but non-motorized vehicles are not allowed to take people.
Do not enter the motorway. When an electric vehicle enters a motorway, if it suddenly overturns due to a collision, the car behind it is likely to hit because it is too late to brake.
Do not exceed the prescribed speed. The braking system of an electric vehicle only works within a certain speed. Don't rush into slopes or suddenly accelerate and overtake in complicated situations.
Don't turn suddenly. Slow down and pass slowly after seeing the situation clearly.
It is true that electric vehicles need to be charged more often, but in addition to charging for more than 12 hours before using the electric vehicle for the first time, it is usually sufficient to charge for 2-3 hours when the battery is relatively sufficient. If the battery is less, it is 6- 7 hours.
Overcharge not only damages the battery but also wastes power resources
It is understood that the main component of electric vehicles is the battery, and the highest cost is also the battery, and the fastest loss is currently the battery. At present, the batteries of electric vehicles are lead-acid batteries. Overcharging will increase the water loss of the battery, accelerate grid corrosion, soften the active material, increase the probability of battery deformation, and ultimately cause fatal damage to the battery.
If used properly, it is not a big problem for ordinary batteries to be used for about 2 years. On the contrary, the service life is greatly shortened. There have been cases where consumers had to replace new batteries after half a year of use. And now the price of electric vehicle batteries is as high as about 500 yuan, and the lesser ones are about 300 yuan.
In addition to damage to the battery, overcharge also inevitably produces power consumption problems. Generally, the power of the charger is about 300W, even after charging, the air loss power is about 100W. The power consumption for more than ten hours is really not a small amount. Citizen Mr. Li calculated an account: his average daily overcharge time is about 8 hours, so the amount of electricity wasted in a day is (100W×8 hours) 0.8 kWh (kWh), which is converted into cash at about 0.5 yuan/day.