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Why is there such a big gap in the battery life of electric vehicles? How can I go further?

pxid 2021-01-12 173 times

Recently, many friends left messages, how far can the 48V12AH battery of an electric car go? Why some can travel up to 40 kilometers, while some can only travel 25 kilometers, why is the endurance gap so big?

The following pxid industrial design company editors influence the battery life from two major aspects:

1. Analyze existing problems from a product perspective

1. Charger problem
In order to reduce costs, many miscellaneous charger manufacturers use circuit boards and internal electronic components that are of poor quality and are easily damaged, and the charging voltage is either high or low. The use of such chargers will inevitably affect battery durability and mileage.

2. Motor problem
Some of the motors on the market are refurbished motors, which have large power consumption, low slot full rate, high carbon content in magnets, and even rusty magnets in some motors, resulting in insufficient power and waste of electricity. In addition, some motor shells use recycled Aluminum is recycled and made with insufficient purity. These "morbid conditions" will cause the motor to generate heat during operation, which greatly increases the battery power consumption and "strains" the battery.

3. Controller problem
Some controllers are of poor quality. Due to the workmanship, control panel, and inaccurate parameters, the current is too large, the undervoltage value is offset, etc., which affect the "control play" of the battery power, leading to shortened mileage and early termination of the battery life.

Why is there such a big gap in the battery life of electric vehicles? How can I go further?

4. Brake power failure
There is a danger of power failure without the brakes. If the brakes are not returned to the position by accelerating the speed control, they will "run" with the brakes, which will waste a lot of electricity from the "tired work" of the entire vehicle components! If the electric vehicle does not want to run off due to the brakes, repair it if there is no brake power failure.

2. Analyze existing problems from the perspective of use

1. Overweight
Electric vehicles are designed to be light and efficient. The weight of a two-wheeled electric vehicle is usually 100 kilograms. If the load is too heavy, the mileage will drop a lot.

2. The temperature drops
As the weather becomes colder, it is normal for the mileage of electric vehicles to decrease. Under normal circumstances, for every 1 degree temperature drop, the mileage decreases by almost 1%. This may not necessarily be due to an electric vehicle or battery failure. When the temperature rises, the mileage will recover.

3. Driving speed
The mileage data given by industrial design companies are also tested at economic speeds, while riding electric vehicles are usually used to the highest speed, so they often fail to reach the maximum mileage claimed by the manufacturer.

4. Human misleading
Many businesses now have a tendency to mislead. The 48V12AH battery can run 30 kilometers normally, but it is said that it can run 50 kilometers. This is exaggerated and some people believe it is true. In the end, how many roads can be run is a mystery.

Sometimes the electric car doesn't run far, it's really not the fault of the battery! The cruising range of an electric vehicle is closely related to the charger, controller, motor, load size, tire pressure, etc. Everyone needs to pay attention.