Car Battery

Batteries can be divided into two categories: alkaline batteries and acid batteries. Lead-acid batteries are commonly used in automobiles, whose main purpose is to start the engine. Car Batteries can be divided into the following four types: wet charge batteries, dry charge batteries, low-maintenance batteries and maintenance-free batteries.

The car is equipped with two DC power supplies, battery and generator. All the electric equipment used in the car is connected in parallel with the DC power supply. Battery functions are :1. When the engine starts, power supply to the starter and ignition system; Electricity; 2. When the engine is running at low speed, it will be supplied power to electrical equipment and generator magnetic field winding. 3. When the engine is running at medium and high speed, the remaining electric energy of the generator will be converted into chemical energy and stored. When the generator is overloaded, assist the generator to supply power to the electrical equipment. 5. The battery is equivalent to a large capacitor, which can absorb the instantaneous overvoltage in the circuit, protect the electronic components, and keep the voltage stability of the automobile electrical system.

When starting the engine, the battery in 5~10S, to start the continuous supply of strong current (gasoline engine 200~600A, diesel engine 800~1000A), therefore, the requirements for the battery is: large capacity, small internal resistance, have enough starting ability.