What is Battery? Definition of Battery : It is a device consist of one or more electro-chemical cell and it is used to convert stored energy in chemical form to electrical energy . One battery contain two types of cell One is primary cell and another is secondary cell. What is the function of Battery ? Function of Battery: There are three function one battery and they are given bellow: 1. Engine Off: Battery energy is used to operate lighting and after accessory system. 2. Engine Starting: Battery energy is used to operate the starter motor and provide current for ignition system during cranking. 3. Engine Running: Battery energy is used when automobile electrical load exceed the supply from the charging system. Electrical System: 1. Battery 2. Starting System 3. Charging System 4. Ignition System
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