When buying an electric bicycle, you should pay attention to how to choose and what motor is the best?

I hope the following information will be helpful to you. Hehe

There are two types of motors: brushless and brushed.

Toothed and toothless are subdivisions of brushless motors.

Toothed means that its transmission system uses gear reduction.

The motor with gear reduction has the advantage of large starting torque when starting,

It can be started directly because of its strong climbing ability, and the best brushless motor

is human-assisted starting, which is beneficial to the life of the motor. If

is an old man, it is recommended to buy one with teeth.

48V5W and 48V8 have different power, just like

it is a matter of horsepower.

Lead-acid batteries are mostly used at present, so just pay attention to charging them as you use them.

if 3% discharge can be used for 1 times, 5% discharge is estimated to be used for 8 times

if it is used in plain cities, it is recommended to buy brushless ones, if it is in mountainous areas or hilly areas, it is recommended to buy brushes with teeth.

Here are some common sense of purchasing and maintenance:

1. How to buy an electric bicycle

Style selection

1. There are three main driving modes of electric bicycle: one is hub drive, the other is center drive and the other is suspension drive. In the market, electric bicycles are mainly driven by wheel hub, and the wheel hub drive is better than the rear wheel drive, but the front wheel drive performance is relatively poor.

2. Considering the balance of the whole vehicle and the convenience of getting on and off, it is better to place the battery in the inclined tube or vertical tube of the frame, and the configured battery is basically an economical lead-acid battery. At present, most electric bicycles use 36V12AH lead-acid batteries; Because the battery with 24V12AH has a short continuous mileage, consumers have fewer choices.

functional style selection

1. standard type: the motor power of this kind of electric vehicle is generally 15W, characterized by simple and smooth shape, continuous mileage of 4-5km, simple operation, moderate price, and the price is about 2,-2,6 yuan, which is more suitable for users with long commuting distance and certain mobility in work and life.

2. Multifunctional type: This type of electric vehicle generally adds front fork shock absorber, saddle shock absorber, headlight, electric horn, etc. on the basis of the standard type, which is characterized by more functions, more comfortable riding and more convenient use at night. The price is generally around 25 ~ 3 yuan.

3. Luxury type: This type of electric car is characterized by novel and luxurious shape and more complete functions. Usually, an instrument panel is added to the handlebar to display speed, mileage, voltage and power, and some of them are also equipped with turn signals, language prompts, rearview mirrors, tool boxes and safety nets. The price is usually around 3 ~ 34 yuan.

specification selection

most electric bicycles are 61mm. At present, manufacturers design and manufacture 66mm or 56mm electric bicycles to meet the needs of consumers at different levels.

brand selection

brand is a sign of quality, and the quality level of different brands is uneven. Consumers must choose brands that have been tested by authoritative departments and proved by practice to be reliable in quality, low in repair rate, good in after-sales service and high in reputation. Consumers can pay attention to the "reputation mark" issued by China Bicycle Association on electric bicycles.

key points of on-site shopping

1. according to my actual needs and preferences, I choose the appropriate specifications, styles and colors.

2. first, select the appearance quality of the vehicle, mainly to see whether the trademarks and decals are in good condition, and whether the surface quality of paint parts, electroplated parts, plastic parts and aluminum alloy parts is satisfactory.

3. Check the quality of vehicle assembly, which should be:

A. All kinds of screws are fastened in place without looseness.

B. the handlebars, wheels, chains, cranks and pedals should operate flexibly, and the rims should have a circular speed with a small amount of circular runout.

C. handlebars, saddles, clay tablets, clothes hangers and brackets should be installed straight or symmetrically, and there should be no obvious deviation.

D. moving parts (such as chains, cranks, wheels, etc.) and stationary parts (such as chain covers, clay slabs, etc.) must not be rubbed.

4. Try the switch key and battery lock, which is safe, reliable and convenient to use. It is most convenient to use one key for electric door lock, battery lock and toolbox lock.

5. turn on the switch, turn the speed change handle, and check the stepless speed change, brake (brake) power failure and braking effect, and check whether the motor runs smoothly and the sound is normal.

6. multifunctional and luxury electric bicycles should also check whether all the functions are in good condition.

7. finally, get all the invoices, chargers, certificates, instructions, three-guarantee cards, etc. and keep them properly.

Reference: China Quality News

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2' How to choose electric bicycles and bicycles?

to buy an electric bicycle, you must first understand it.

Electric bicycles are more and more popular with people, especially lesbians, because they are light, fast, labor-saving, low noise, pollution-free and environmentally friendly. Moreover, the number of students riding electric bicycles has generally increased recently. It can be said that it is a revolution and a major breakthrough in the traditional means of transportation. It is not so simple to really understand electric bicycles. On the basis of traditional bicycle, it adds four parts: motor, controller, storage battery and charger. Whether the selection of bicycle parts or the selection of motor controller, battery, charger and some parts directly affect the quality of the whole vehicle, how can consumers know the selection of the above parts and buy a satisfactory car? We should consider the following aspects, and there will be no big mistakes:

First, we should choose a good dealer: a large, powerful and influential dealer is the first inspector of consumers, because it must maintain its own reputation and influence.

second, it depends on the brand: a good brand must have a large scale, a high brand awareness, a large production and sales volume, the manufacturing capacity of main spare parts and the research and development capacity of new products, and a good after-sales service system. Such enterprises will never engage in vicious competition at the expense of giving up quality, damaging their own brands and interests, resulting in unsustainable development of enterprises.

third, it depends on the appearance: whether the paint is bright or not, the paint surface is uniform and has a certain sense of thickness, the interface of the plastic parts of the shell is smooth and gapless, and the strength of the fasteners is the same as that of the fasteners. Without this screw loosening and that screw tightening, the brakes and other components are effectively debugged in place.

fourth, it depends on after-sales service: a good brand must have a good after-sales service. It depends on whether the service measures, charging standards and guarantee commitments are standardized, reasonable and orderly, and also on the maintenance quality. Of course, this is not absolute, and it is directly proportional to the sales volume, which is of reference value.

we think that if we pay attention to the above five points, we can say that there will be no major problems, but we should get out of two misunderstandings: one is that the speed is fast. Here, we definitely tell you that fast speed is not a good thing. From the current national standard GB17761———1999 for electric bicycles, it is clearly stipulated that the maximum speed of electric bicycles should not exceed 2 km/h. On the other hand, when riding more than 2km/h, the current lead-acid battery can't withstand the large power supply, and discharging for a long time will greatly shorten the service life of the battery and the service life of other components such as motors and controllers, and it will also bring security risks. It is irresponsible for some individual brands to blindly increase the speed to cater to some consumers. The other is to pursue style and buy "light motorcycle" cars, because electric bicycles are non-motor vehicle management and developed on the basis of bicycles, that is to say, human beings can ride without using electric functions, and it is more difficult for human beings to ride "light motorcycle" cars.

◆ Reasonable use and maintenance of electric bicycles:

First, be good at maintenance: keep the car body clean and tidy, and prevent the car body or transmission parts from rusting due to sun and rain. Although not afraid of rain, you can't wade in the water. Pay attention to that the water level can't be higher than the center line of the hub shaft when passing through stagnant water to prevent the motor from being damaged by water. Tire inflation should be sufficient, and the braking performance should be adjusted.

second, multi-assist: the most ideal use method is that people help the car to move, electricity helps people to walk, and manpower and electricity are linked, which saves labor and electricity. When starting, pedal to a certain speed before electric acceleration. When riding uphill with heavy load or driving against the wind, human riding can help, which can avoid battery over-current discharge, prolong battery life and protect the motor.

Third, frequent charging: form a good charging habit, and charge the battery after use, so as to keep the battery fully charged. Because of the characteristics of lead-acid batteries, it can't be deeply discharged frequently, especially if it is stored for too long after power loss, which will affect the battery life, it should be charged once a month if you don't ride for a long time.

Fourth, regular maintenance: the whole vehicle should be maintained once every six months, the brake system and transmission system should be checked, the fasteners should be reinforced once, and the spoke tightness should be adjusted once, so as to keep the vehicle in good condition and drive safely, so as to avoid serious disasters caused by minor illnesses.

As a new means of transportation, the electric bicycle has the advantages of simple operation, comfort and lightness, moderate price, etc., and has been more and more welcomed and loved by consumers.

At present, the number of manufacturers of electric bicycles in China has increased from more than 1 in the previous year to nearly 7 at the beginning of this year. In this rush, patchwork production situation, the electric vehicle market will inevitably be mixed, good and bad.

in order to maximize profits, some manufacturers ignore the interests of consumers, and specialize in purchasing low-quality and low-priced bulk parts, hiring several people to assemble them and labeling them to attract consumers with their beautiful appearance and cheap price. The manufacturer's cost has been reduced by half, but the cars sold to consumers have some problems, such as high power consumption, low efficiency, battery leakage, short service life and unsafe use, which have serious hidden dangers.

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3' How to choose a satisfactory electric bicycle? Here are some tips.

first of all, we should try our best to buy brand-name products from big manufacturers.

Among the numerous production enterprises, there are very few in real scale. Only a few companies, such as Chunlan and Continental Pigeon, have an annual output of more than 2, vehicles, and less than 1 companies have an annual output of more than 1, vehicles. Most of the rest are assembly enterprises, and some are simply family workshops.

The electric bicycle is a product with certain technical content. Because it is always in a moving state during use, there are strict requirements on the stability, reliability and safety of its motor, battery, frame and other power and control systems. Only electric vehicle manufacturers with perfect facilities, strong technology and strict management will have strong technical force to engage in the research and production of key components such as motors, controllers and batteries.

secondly, pay attention to the core components of electric bicycles.

the core component of an electric bicycle is the battery. At present, lead-acid batteries are widely used in the market. Although they have certain advantages in price, lead-acid batteries not only have the possibility of "secondary pollution", but also have large volume, small capacity, low power, short life and memory effect. In actual use, it must be charged every day, and the more frequently it is charged, the less the power is, and the maximum continuous mileage of one charge will not exceed 4 kilometers. Some small workshops produce electric vehicles only about 2 kilometers.

In addition, in the national standard for electric bicycles to be implemented soon, the performance indicators of electric bicycles are specified, such as the weight of the bicycle should not exceed 4 kg, and it can continue to ride for a certain distance once the battery is used up. These will be used as a benchmark to distinguish between qualified and unqualified products, and you should also pay attention when buying a car.