Riding an electric car wants to be able to ride faster and farther. Charging is not convenient, and charging time is shorter. Therefore, the electric vehicle battery has larger discharge current, deeper discharge depth, larger charging current and longer charging interval. This makes the battery performance quickly damaged, seriously affecting the battery life. The following is a brief introduction to the maintenance skills of electric vehicles.

1, no loss in storage
The battery is strictly prohibited from being in a state of power loss when it is stored. The state of power loss is that the battery is not charged in time. In the state of loss of electricity, sulfation is easy to be stored, lead sulfate crystals are attached to the plate, and the electric ion channel is blocked, and the charge is insufficient and the capacity of the battery is reduced. The longer the idle state, the heavier the battery damage. Therefore, when the battery is idle, it should be charged once a month, so that the battery can be kept healthy.
2, periodic inspection
In the process of use, if the electric vehicle's continued mileage suddenly drops more than ten kilometers in a short time, it is very likely that there is a short circuit in the battery group with the least one battery broken, the plate softening, the plate active material falling off and so on. At this point, professional battery repair institutions should be inspected, repaired or matched in time. This can prolong the life of battery pack and save the most.
3, avoid large current discharge
When the electric vehicle is starting, manned and uphill, please use pedal power to avoid instantaneous large current discharge. Large current discharge easily leads to crystallization of lead sulphate, thereby damaging the physical properties of the battery electrode.
4, to master the charging time correctly
In the process of use, the charging time should be accurately grasped according to the actual situation, the use frequency and the mileage, the capacity description provided by the battery manufacturer, the performance of the auxiliary charger, the size of the charging current, and so on. In general, batteries are charged at night, and the average charging time is about 8 hours. If a shallow discharge (a short distance after charging), the battery will soon fill up, and continue charging will be overcharged, causing the battery to lose water, heat, and reduce battery life. Therefore, the battery can charge the best charge once the discharge depth is 60%-70%, and it can be converted into riding mileage when used in actual use. It can be charged according to the actual situation and avoid the harmful charging.
5, prevent insolation
Electric cars are strictly forbidden to be exposed to the sun in the sun. The high temperature environment will increase the internal pressure of the battery and make the battery limit pressure valve open automatically. The direct consequence is to increase the amount of water loss of the battery, and the excess water loss of the battery will inevitably lead to the decrease of the battery activity, the softening of the plate, the heating of the shell and the fatal damage of the shell, such as the drum, the shape change and so on.
6, avoid the plug heating when charging
The loosening of the battery charger output plug and the oxidation of the contact surface will lead to the heating of the charging plug. The excessive heating time will lead to the short circuit of the charging plug, which directly damages the charger and brings unnecessary loss. Therefore, we should remove oxides or replace connectors in time.