Is the automobile battery generally a lithium battery or a lead-acid battery?

Car batteries are lead-acid batteries.

Battery is an indispensable part of automobile, which can be divided into traditional lead-acid battery and maintenance-free battery.

Because lead-calcium alloy is used as the grid frame of storage battery, the amount of water decomposition and evaporation during charging are low. In addition, the sealed shell structure is adopted, and little sulfuric acid gas is released. Therefore, compared with the traditional storage battery, it has the advantages of no need to add any liquid and long storage time of the wiring pile? .

Extended data

(1) When starting the engine, provide strong starting current for the starter (about 10A).

(2) When the generator is overloaded, it can assist the generator to supply power to the electrical equipment.

(3) When the engine is idling, power is supplied to the electrical equipment.

(4) The battery is also a large-capacity capacitor, which can protect the electrical appliances of the car.

(5) When the terminal voltage of the generator is higher than the electromotive force of the lead-acid battery, part of the electric energy is converted into chemical energy and stored, that is, charged.