Electric vehicle battery use precautions

　　Author ：Iflowpower – Portable Power Station Supplier

1. Prevent over the discharge battery from discharged to the termination voltage, continue to discharge it is called over-discharge. Over-discharge will seriously damage the battery, which is extremely unfavorable to the electrical performance and circulating life of the battery.

When the battery is discharged to the termination voltage, the internal resistance is large, and the electrolyte concentration is very thin, especially in the polar bore, and the surface is almost neutral, and the internal resistance is tendency, the volume expansion, when the discharge current is large, significantly fever (Even a fever deformation), at this time, the concentration is particularly large, there is an increase in the possibility of the dendritic crystal short circuit, and it will be crystallized into larger particles, that is, the irreversible salt will be formed, and the internal resistance will be further increased, and the charging recovery ability is very Poor, even can't fix. When the battery is used, it should be prevented from discharge, and "undervoltage protection" is very effective. In addition, since the electric vehicle "undervoltage protection" is controlled by the controller, some other devices other than the controller such as voltage meter, the power consumption of the indicator light is directly powered by the battery, and the supply of the power supply is generally not controlled.

Control, electric car lock (switch) once. Although the current is small, if it is discharged for a long time (1-2 weeks), it will appear. Therefore, you can unlock it for a long time, it should be turned off immediately.

2. Preventing overcharges from overcharge, it has been described above. Over-recharge will increase the water loss of the battery, accelerate the corrosion of the grid, the active material softening, and the chance of reducing the battery deformation.

The occurrence of overcharge should be prevented as much as possible; selecting the charger parameters to match the battery, and fully understand the operating conditions of the battery in the high temperature season, and the change of the entire service life. Do not place the battery in an overheating environment during use, especially when charging is charged away from the heat source. After the battery is hot, he will take cooling measures, and the battery temperature can be charged when the battery temperature is restored.

The installation position of the battery should ensure good heat dissipation, and the charging should be stopped when it is too hot, and the charger and battery should be checked. When the battery discharge depth is relatively large, the charging time should be shortened when the ambient temperature is high. 1.

Prevent over the discharge battery from discharged to the termination voltage, continue to discharge it is called over-discharge. Over-discharge will seriously damage the battery, which is extremely unfavorable to the electrical performance and circulating life of the battery. When the battery is discharged to the termination voltage, the internal resistance is large, and the electrolyte concentration is very thin, especially in the polar bore, and the surface is almost neutral, and the internal resistance is tendency, the volume expansion, when the discharge current is large, significantly fever (Even a fever deformation), at this time, the concentration is particularly large, there is an increase in the possibility of the dendritic crystal short circuit, and it will be crystallized into larger particles, that is, the irreversible salt will be formed, and the internal resistance will be further increased, and the charging recovery ability is very Poor, even can't fix.

When the battery is used, it should be prevented from discharge, and "undervoltage protection" is very effective. In addition, since the electric vehicle "undervoltage protection" is controlled by the controller, some other devices other than the controller such as voltage meter, the power consumption of the indicator light is directly powered by the battery, and the supply of the power supply is generally not controlled. Control, electric car lock (switch) once.

Although the current is small, if it is discharged for a long time (1-2 weeks), it will appear. Therefore, you can unlock it for a long time, it should be turned off immediately. 2.

Preventing overcharges from overcharge, it has been described above. Over-recharge will increase the water loss of the battery, accelerate the corrosion of the grid, the active material softening, and the chance of reducing the battery deformation. The occurrence of overcharge should be prevented as much as possible; selecting the charger parameters to match the battery, and fully understand the operating conditions of the battery in the high temperature season, and the change of the entire service life.

Do not place the battery in an overheating environment during use, especially when charging is charged away from the heat source. After the battery is hot, he will take cooling measures, and the battery temperature can be charged when the battery temperature is restored. The installation position of the battery should ensure good heat dissipation, and the charging should be stopped when it is too hot, and the charger and battery should be checked.

When the battery discharge depth is relatively large, the charging time should be shortened when the ambient temperature is high. 3, prevent short-circuit battery from short-circuited, there is hundreds of amps. The shorter contact is related, the larger the short circuit current, so all connecting parts will have a lot of heat, and the heat of the weak link is greater, the connection is blown, short-circuit phenomenon.

The battery is partially possible to explorate the explosion, and the spark is caused when the connection is blown at the connection, which can cause the battery explosion; if the battery short circuit is shorter or the current is not particularly large, it may not cause connection The phenomenon is blown, but the short circuit will still have an overheating phenomenon, which will damage the binder around the connecting strip, so that it leaves a leakage. Therefore, the battery is absolutely not short-circuited. It should be particularly careful when installing or use, the tools used should take insulation measures.

When connecting the battery, the electrical appliance other than the battery should be connected, not short-circuit, and finally the battery, wiring specification It should be good insulated to prevent overlapping pressure. 4, prevent loose connection and no longer contact, the degree is lighter, the conductive poor conductivity, the heat contact portion is heated, the line loss is large, the output voltage is low, affecting the motor power, so that the mileage is reduced or cannot be normal Riding; if the terminal block is in contact (most of the faults in the terminal and the connection joint portion), the terminal will heat, affect the combination of terminals and sealants, and the time will occur. If there is no contact in the driving process or the charging process, there may be a disconnection, and a strong spark will appear in the disconnection, which may disconte the explosive gas inside the battery (especially the electric battery, the battery, due to the exhaustion of the battery More, and the battery is consumed, the spark is strong, the possibility of explosion is quite large.

) The electric vehicle should have a strong vibration at runtime, therefore, the reliability of all connections should be used, and the connector should be "self-lock" function, prevent the vibration and pulling to fall off, and the connection to the battery tab should be Take the connector and use the solder to support it, and apply a crimp mode with the connection (also replaced with solder and re-use). 5, prevent new activity of exposure active substances in the sun, affecting battery life.