Electric vehicles can be regarded as the most cost-effective means of transportation in life. It is really convenient to use, but sometimes it does “annoy” car owners. Especially for battery life, the battery life of electric vehicles is generally not far. Although there are a few models with a battery life of 100 or even 200 kilometers, most of the electric vehicles used by most people have a battery life of about 50-70 kilometers. If you encounter a decline in battery life, it will seriously affect the practicality of the vehicle.
If an electric car has been used for several years, everyone can understand that the battery life is not good, but if the electric car has been used for only one year, the battery life will drop, how to deal with this situation, and what are the solutions? The editor will give you a few tips today, hoping to help car owners who have these troubles.
Case 1: There is a voltage difference between the batteries
Each group of electric vehicle batteries is composed of multiple 12V group batteries. Once there is a significant pressure difference between the group batteries, the battery life of the electric vehicle will decrease.
The appearance of the pressure difference is mainly due to the fact that the positive or negative electrodes of a certain group of batteries are discharged and charged first when they are charged and discharged many times. This makes the voltage and current lower or higher than other batteries, causing voltage instability and affecting battery life.
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Solution: In view of this situation, we can install a battery equalizer for the electric vehicle, which can prevent the voltage imbalance between the cells inside the battery and cause the service life to decrease. When the voltage between the battery compartments is unbalanced, the charging and discharging speeds of different battery compartments are different. When one battery compartment is fully charged, the other battery compartments are in the state of overcharging or undercharging, and overcharging or undercharging will damage the battery and cause the battery capacity to drop. Shortened lifespan. The battery balancer can ensure the power balance between each battery compartment in real time, thereby prolonging the service life of the battery by 5-30%.
A battery with an equalizer is installed, through active equalization, the battery with high voltage is transferred to the battery with low voltage for compensation, so as to achieve charge balance and make each battery fully charged, and finally realize energy transfer to extend the mileage of the battery and the service life of the battery pack.
Situation 2: The electrolyte of the battery is insufficient
Although the electrolyte of most electric vehicle batteries can theoretically be used for 2 to 3 years, the bad charging habits of some car owners will lead to accelerated consumption of the electrolyte. When the electrolyte is insufficient, the active material responsible for converting electrical energy will become active Decrease, the charging and discharging efficiency will decrease, and the storage capacity will also decrease, affecting battery life.
Solution: For this situation, we can solve the problem by adding liquid by ourselves.
Situation 3: The brake does not return
The decline in the battery life of electric vehicles is sometimes not necessarily a problem with the battery. After all, the electric vehicle has only been used for one year, and the battery is relatively new and the degree of aging is not high. There is also a common situation that causes the battery life of electric vehicles to decrease, that is, the brakes do not return, resulting in increased vehicle driving resistance and increased power consumption.
Solution: For this situation, the solution is also very simple. We only need to find the brake pump assembly. If the brake does not return, it is usually because the screws here are loose. We only need to take a wrench to screw the screws in for a turn, and we will find that the wheels rotate more easily and solve the problem of power consumption. If the problem of increased volume, the battery life of the vehicle can be restored.
Summary: The electric car has only been used for one year. Even if there is a problem with the battery life, it is far from the point where the battery needs to be replaced. Therefore, in this situation, the editor strongly disagrees with the proposal of some merchants to directly ask the car owner to replace the battery. Generally, the decrease in the battery life of an electric vehicle after one year of use is related to several factors such as “voltage difference, insufficient electrolyte, and brake failure”. Car owners may wish to use the tips shared by the editor to try to repair it. If you are not sure, you can also ask the merchant for assistance. You don’t need to change the battery directly, which can save you a lot of money.