Research and application of battery in photovoltaic power generation system

What is the difference between electric bicycles using 500 watt motors and 800 watt motors? Is the electric bicycle tires covered by warranty? In recent years, with the rapid development of the electric bicycle market, electric bicycles have become the main means of transportation for citizens. However, with the hot sale of electric bicycles, complaints about electric bicycles have also risen. According to the statistics of 12315 staff in the city, the number of complaints about electric bicycles last year was second only to mobile phones, which became a hot spot for consumer complaints. If the complaints about electric bicycles are classified, the most complaints are batteries, motors, frames and after-sales services.

Newly bought electric car

Pushing away every day

Mr. Si is doing construction engineering design, and he runs around the city every day. In order to save time, he wants to buy a running electric bicycle.

Mr. Si said that he bought an electric bicycle at a car dealership in Heping Street. At that time, the service staff promised that the electric bicycle could run for 80 kilometers when fully charged. It can only be found when riding. It can only run 40 kilometers at a time, and the energy efficiency is reduced. Half. “I often go out by car in the morning and push home in the evening,” Mr. Si said.

"My electric bicycle battery is 60 volts. My friend's electric bicycle battery is also 60 volts. Some people can run 90 kilometers at a time, and my car can only run 40 kilometers at a time. I went to the business theory, the other side. Tell me that the motor power of the two cars is different, and the power consumption of the battery is definitely different.” Mr. Si said, “When I bought a car, the merchant only told me that the battery charge was 80 kilometers per charge. Now when there is a problem, I will shirk it. Said that the motor consumes a lot of power, as consumers who can understand this?"

Within two months

Car tires rotten 5 times

The new electric bicycle purchased by Xiaoqin really didn’t bother him. In two months, the tires were rotten five times. When the five times were repaired, Xiao Qin’s gas would not be played.

"On the third day of the purchase, the tires were rotten. At that time, I thought it was being tied." Xiao Qin said, "The tires that have just been repaired will be rotten the next day. Asking the car repairer is the reason, people say yes The quality problem of the tires is not smashed. Later, every time I repair the tires, I will ask the car repairer whether it is caused by the wear of the tires or the tie. As a result, several car repairers told me that the tires are bad because of quality problems. Caused."

Xiao Qin went to the business theory, and the other party did not recognize the quality of the tires. He went home and carefully checked the instructions for the electric bicycle. The instructions stipulated that the tires belonged to the "three guarantees" range, and problems could be replaced within three months.

"With the instructions, I went to find a business, and the other party agreed to give me a new tire." Xiao Qin said that he later observed it in the mall and found a problem: when consumers buy electric bicycles, if they don’t ask Merchants will not actively tell consumers which parts of electric bicycles belong to the "three guarantees" range, and some consumers buy electric bicycles after problems, because they do not understand the manufacturers' after-sales commitments, they are often pushed by merchants for various reasons. Take off, eat a dumb loss.

Should you pay attention when buying a car?

an expert

When consumers buy electric vehicles, what should they pay attention to? The reporter asked Cui Shifu, who is responsible for after-sales service. Master Cui said that when purchasing electric bicycles, consumers often only care about the capacity of the battery. The length of the vehicle traveled after one charge. In fact, the battery capacity and the length of the vehicle travel need to be combined with the motor and load of the vehicle.

Master Cui said that the battery is the most important power source for electric vehicles. The battery is a combination of voltage and capacity. Different combinations, capacitance, power, driving distance and even price will be 2 to 3 times different. Therefore, at the time of purchase, consumers should find out how many volts and how many amps the battery of the electric bicycle they bought. Under normal circumstances, the electric bicycle battery is 48 volts and 20 amps longer than the 36 volts and 10 amps. After the motor is powered, the power consumption is high, which will directly affect the vehicle's driving. Distance.

According to Master Cui, the most prone to faults in electric bicycles are: batteries, motors, motor lines, controllers, etc. Different manufacturers have different warranty dates and ranges for these parts. Consumers must understand clearly. Look carefully at the instructions for the purchased vehicle, not just the words of the salesperson.

“Many times, consumers are not aware of the situation of electric bicycles they buy, but they will understand whether they are fooled after a problem occurs.” Master Cui said that a few days ago, a man asked him to make up his tires. Your own electric car is a vacuum tire. He turned on the tire and found that the tire was a normal tire, not a vacuum. The man shouted, saying that he spent more than 200 yuan for this.

12,315 staff

According to the staff of 12315, at present, China has not issued the "three guarantees" regulations for electric bicycles. The "three guarantees" commitment of various brands of electric bicycles is formulated by the manufacturers themselves. Because the "three guarantees" commitment has no uniform standards, the quality commitments and warranty terms formulated by various manufacturers are also varied. Therefore, consumers must know the whole vehicle situation and after-sales service when purchasing electric bicycles. In particular, check the purchased electric bicycles. The battery capacity and production date, the repairer is required to make a maintenance record for each repair.

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