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How to Buy a High-quality Lithium Battery for Electric Vehicles?

2023-04-13
Ⅰ. What are the advantages and disadvantages of lithium battery electric bicycles1. The advantages of lithium battery electric bicycles:Lithium battery has a long life, light weight and small volume....

Ⅰ. What are the advantages and disadvantages of lithium battery electric bicycles

 

1. The advantages of lithium battery electric bicycles:

 

Lithium battery has a long life, light weight and small volume. Lithium battery electric vehicles are now diversified in brands.

 

The power function of a lithium battery electric bicycle is similar to that of a lead-acid battery (simple electric bicycle). It can be charged for 6 to 8 hours, and can run 30 to 45 kilometers depending on the battery capacity. The weight is only about 1/5 of the lead-acid battery. The biggest benefit of electric bikes is longevity.

 

The lithium battery cell price in the world is only seen on the surface. In fact, the cost is similar to that of lead-acid batteries. Now batteries lithium are generally guaranteed for 2 years, and lead-acid batteries are guaranteed for 1 year.

 

Lithium batteries have the characteristics of non-activation. When using lithium batteries, it should be noted that the battery will enter a dormant state after being placed for a period of time. At this time, the capacity is lower than the normal value, and the use time is also shortened.

 

However, the activation of lithium batteries is very simple. It only needs 3-5 normal charge and discharge cycles to activate the battery and restore its normal capacity. Because of the characteristics of the lithium battery itself, choosing it has almost no recall effect.

 

Therefore, users do not need special methods and equipment during the activation process of the new lithium battery. Lithium batteries do not have a reverberation effect. When charging lead-acid batteries and nickel-metal hydride batteries, customers are worried about the reverberation effect of the battery. When lithium batteries are used, we can all breathe a sigh of relief. Lithium batteries have no reverberation effect.

 

Ⅱ. Safety problems of the li ion battery are serious

 

The safety of lithium batteries still needs to be improved. The danger of lithium battery catching fire, stopping and causing explosion is still not completely eliminated. The collision of the vehicle may cause the positive and negative materials of the battery to break through the gap, and the instantaneous high current when the energy is quickly recharged to the battery during braking will cause the battery to short-circuit and rise in temperature, causing a shutdown and explosion.

 

The reason for the fire is that the li ion battery is separated due to bumps and short circuits, and it will cause fire and stop when it touches the air. In addition, the electrolyte of the li ion battery is an organic electrolyte, and these substances are more likely to catch fire and stop when they come into contact with air.

 

Ⅲ. How to choose a lithium battery electric bicycle

 

1. Look at the brand: There are many brands of electric bicycles, and customers should choose brands with long operation time, low repair rate, good quality and promise. For example, choose a company that has passed the ISO9001-2000 certification of the quality management system. Assuming that you are not sure, you can buy some big brands of electric bicycles.

 

2. Heavy efficiency: At present, the parts of electric vehicles are not yet universal, and repairs cannot be socialized. Therefore, when choosing a lithium battery electric vehicle, you must pay attention to whether there is a special repair function in the local area. If you want to be cheap, ignore the after-sales service , it is easy to be deceived.

 

3. Model selection: Electric bicycles can generally be divided into four types: luxury type, general type, front and rear shock absorber type, and bulky type. The luxury type has complete functions, but the price is high. The general type has a compact structure and is economical and practical; the bulky type is light and flexible, but the stroke is short.

 

4. Check accessories: The strength requirements and performance requirements of lithium battery electric bicycle parts should be higher than those of bicycles. When purchasing, the user should look at the quality of the parts selected for the whole vehicle, such as: whether the welding and surface of the frame and the front fork are defective, whether the manufacturing of all parts is excellent, whether the double support is strong, whether the tires can be selected from famous brands , Whether the fasteners can be rust-proof and so on.

 

5. Think about the continuation journey: the continuation journey of a group of new lithium batteries with a capacity of 36V/12Ah is generally about 50 kilometers. Under normal circumstances, the longest distance of daily riding is about 35 kilometers. continued journey). Or you can choose other bulk lithium batteries for longer endurance mileage.

 

Those who ride the longest distance of more than 50 kilometers every day must consider whether there is the possibility of charging twice a day in one day. Assuming that there is no such possibility, it is not suitable to buy electric bicycles.

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