What is the power supply voltage of the car battery?

12V car, the battery voltage should be around 13V, and the load voltage should not be lower than 1 1V, so it is normal, and it may be difficult to start below this voltage.

Automobile battery is an important part of automobile. Its function is to supply power to the starter, and to supply power to the engine ignition system and other electrical equipment when the engine starts or runs at low speed. When the engine is running at high speed, the generator generates enough electricity, and the car charger automatically stores excess electricity for the car battery.

Extended data

The life of a battery is generally about two years.

1, overdischarge

2. The battery has been stored for a long time (not charged during storage)

3, can't charge through the car engine

4, no electrolyte

5. The specific gravity of electrolyte is too high

6. High temperature charging.

7. Contaminated by dirt (such as hydrochloric acid, seawater, organic acids, etc.). )

8. The battery charging current is too large.