Warning that car batteries need to be replaced

When the electric eye on the battery shows white, it indicates that the battery needs to be replaced.

When the automobile battery is deformed or bulged, the surface battery can no longer be used, which has great safety hazards and needs to be replaced in time.

When the car is difficult to start, the battery fault warning light is on, or the headlight is dimmed when idling, it is necessary to check the battery. If there is any fault, it should be repaired in time or replaced directly.

Extended data:

The normal service life of automobile storage battery is 1~8 years, which is closely related to the vehicle condition. Under the condition that the backwashing electricity of the on-board generator is normal and the electrical appliances are grounded without leakage, it can basically be used for more than 3 years. If you feel that the battery cannot be charged or the starter is weak, and the headlights are obviously dimmed, you need to take out the battery and charge it with the charger 12-24 hours. If it doesn't work and the mileage has reached more than 50 thousand kilometers, and the generator is not faulty, you need to consider replacing the battery. Generally, domestic brands such as Sail, Masano and Fanfan are all good, and the price varies from 1000 in 200 yuan according to the battery model.

After some batteries are used, the internal resistance becomes very large, which is full as soon as it is charged and finished as soon as it is discharged. It is also normal for this battery to measure its no-load voltage with three meters. Therefore, not only the no-load voltage can be measured, but also the discharge current can be measured by the discharge instrument. It is normal that the voltage is not lower than 10V during discharge. If it is lower than 10V, it proves that the battery may be damaged and must be replaced. The lower the voltage during loading, the greater the internal resistance of the battery and the worse the discharge characteristics.